Journal cover
Journal topic
Biogeosciences
An interactive open-access journal of the European Geosciences Union
Journal topic
- About
- Editorial board
- Articles
- Special issues
- Highlight articles
- Manuscript tracking
- Subscribe to alerts
- Peer review
- For authors
- For reviewers
- EGU publications
- Imprint
- Data protection
- About
- Editorial board
- Articles
- Special issues
- Highlight articles
- Manuscript tracking
- Subscribe to alerts
- Peer review
- For authors
- For reviewers
- EGU publications
- Imprint
- Data protection
Journal metrics
Journal metrics
IF 3.951
4.699CiteScore
4.34SNIP 1.322
SJR 2.118
index 106h5-index 72
Abstracted/indexed
Abstracted/indexed- Science Citation Index Expanded
- Current Contents/ABE
- Current Contents/PCE
- Scopus
- ADS
- AGRICOLA
- Aquatic Sciences and Fisheries Abstracts
- CAB Abstracts
- Cabell's
- Chemical Abstracts
- CLOCKSS
- CNKI
- DOAJ
- EBSCO
- GBA
- Gale/Cengage
- GeoBase
- GeoRef
- GoOA (CAS)
- Google Scholar
- J-Gate
- Portico
- ProQuest
- World Public Library
BG | Volume 15, issue 18
Biogeosciences, 15, 5503–5517, 2018
https://doi.org/10.5194/bg-15-5503-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-5503-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 15, 5503–5517, 2018
https://doi.org/10.5194/bg-15-5503-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-5503-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article 17 Sep 2018
Research article | 17 Sep 2018
First in situ estimations of small phytoplankton carbon and nitrogen uptake rates in the Kara, Laptev, and East Siberian seas
P. Sadanandan Bhavya et al.Related authors
No articles found.
Sang H. Lee, Bo Kyung Kim, Yu Jeong Lim, HuiTae Joo, Jae Joong Kang, Dabin Lee, Jisoo Park, Sun-Yong Ha, and Sang Hoon Lee
Biogeosciences, 14, 3705–3713, https://doi.org/10.5194/bg-14-3705-2017, https://doi.org/10.5194/bg-14-3705-2017, 2017
Short summary
Short summary
Little information on the contribution of small-sized phytoplankton is currently available in the Amundsen Sea. Based on a strong negative correlation between the contributions of small phytoplankton and the total daily primary production of phytoplankton found in this study, we concluded that a potential decrease in total primary production would be led by increasing contribution of small phytoplankton in the Amundsen Sea under rapidly warming environmental conditions.
Sang Heon Lee, Jang Han Lee, Howon Lee, Jae Joong Kang, Jae Hyung Lee, Dabin Lee, SoHyun An, Dean A. Stockwell, and Terry E. Whitledge
Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-234, https://doi.org/10.5194/bg-2017-234, 2017
Manuscript not accepted for further review
Short summary
Short summary
The Laptev and East Siberian seas are highly dynamic in terms of active processing of organic matters impacting the transport to the deep Arctic Ocean. However, they have been the least biologically studied region in the Arctic Ocean. As a part of the NABOS program, our field-measured data, which are very scarce in this region, such as major inorganic nutrient and chl-a concentrations and carbon and nitrogen uptake rates of phytoplankton in this study will be very valuable for basic ground.
Jang Han Lee, Dabin Lee, Jae Joong Kang, Hui Tae Joo, Jae Hyung Lee, Ho Won Lee, So Hyun Ahn, Chang Keun Kang, and Sang Heon Lee
Biogeosciences, 14, 1903–1917, https://doi.org/10.5194/bg-14-1903-2017, https://doi.org/10.5194/bg-14-1903-2017, 2017
Short summary
Short summary
Based on the seasonal biochemical compositions in this study, the calorific contents of the food material were 1.0–6.1 Kcal m−3. We found that a major governing factor in the biochemical composition of POM was dissolved inorganic nitrogen loading from river input. The relatively larger amount of food material and the higher calorific content of the POM found in this study reflected good nutritive conditions for sustaining productive shellfish and fish populations in Gwangyang Bay, South Korea.
M. S. Yun, T. E. Whitledge, D. Stockwell, S. H. Son, J. H. Lee, J. W. Park, D. B. Lee, J. Park, and S. H. Lee
Biogeosciences, 13, 737–749, https://doi.org/10.5194/bg-13-737-2016, https://doi.org/10.5194/bg-13-737-2016, 2016
Related subject area
Biogeochemistry: Coastal Ocean
Distribution, seasonality, and fluxes of dissolved organic matter in the Pearl River (Zhujiang) estuary, China
Dissolved organic matter at the fluvial–marine transition in the Laptev Sea using in situ data and ocean colour remote sensing
Collection of large benthic invertebrates in sediment traps in the Amundsen Sea, Antarctica
Patterns and drivers of dimethylsulfide concentration in the northeast subarctic Pacific across multiple spatial and temporal scales
Patterns of suspended particulate matter across the continental margin in the Canadian Beaufort Sea during summer
Reduced phosphorus loads from the Loire and Vilaine rivers were accompanied by increasing eutrophication in the Vilaine Bay (south Brittany, France)
Carbon cycling in the North American coastal ocean: a synthesis
Spring net community production and its coupling with the CO2 dynamics in the surface water of the northern Gulf of Mexico
Contrasting effects of acidification and warming on dimethylsulfide concentrations during a temperate estuarine fall bloom mesocosm experiment
Interannual variability in the summer dissolved organic matter inventory of the North Sea: implications for the continental shelf pump
Remineralization rate of terrestrial DOC as inferred from CO2 supersaturated coastal waters
High-frequency variability of CO2 in Grand Passage, Bay of Fundy, Nova Scotia
Sedimentary alkalinity generation and long-term alkalinity development in the Baltic Sea
Warming effect on nitrogen fixation in Mediterranean macrophyte sediments
High denitrification and anaerobic ammonium oxidation contributes to net nitrogen loss in a seagrass ecosystem in the central Red Sea
Turbulence measurements suggest high rates of new production over the shelf edge in the northeastern North Sea during summer
On biotic and abiotic drivers of the microphytobenthos seasonal cycle in a temperate intertidal mudflat: a modelling study
Effects of elevated CO2 and phytoplankton-derived organic matter on the metabolism of bacterial communities from coastal waters
Distribution and cycling of terrigenous dissolved organic carbon in peatland-draining rivers and coastal waters of Sarawak, Borneo
Biogenic silica production and diatom dynamics in the Svalbard region during spring
Fe(II) stability in seawater
The distinct roles of two intertidal foraminiferal species in phytodetrital carbon and nitrogen fluxes – results from laboratory feeding experiments
Contextualizing time-series data: quantification of short-term regional variability in the San Pedro Channel using high-resolution in situ glider data
Nitrogen and oxygen availabilities control water column nitrous oxide production during seasonal anoxia in the Chesapeake Bay
Impacts of anthropogenic inputs on hypoxia and oxygen dynamics in the Pearl River estuary
Carbon dioxide and methane fluxes at the air–sea interface of Red Sea mangroves
Multi-year particle fluxes in Kongsfjorden, Svalbard
Summertime episodic chlorophyll a blooms near the east coast of the Korean Peninsula
Niche differentiation of ammonia and nitrite oxidizers along a salinity gradient from the Pearl River estuary to the South China Sea
Mesoscale contribution to the long-range offshore transport of organic carbon from the Canary Upwelling System to the open North Atlantic
Modulation of the vertical particle transfer efficiency in the oxygen minimum zone off Peru
Mechanisms of dissolved and labile particulate iron supply to shelf waters and phytoplankton blooms off South Georgia, Southern Ocean
Regulation of inorganic carbon acquisition in a red tide alga (Skeletonema costatum): the importance of phosphorus availability
Experimental assessment of the sensitivity of an estuarine phytoplankton fall bloom to acidification and warming
Seagrass community-level controls over organic carbon storage are constrained by geophysical attributes within meadows of Zanzibar, Tanzania
Technical note: Continuous fluorescence-based monitoring of seawater pH in situ
Contributions of the direct supply of belowground seagrass detritus and trapping of suspended organic matter to the sedimentary organic carbon stock in seagrass meadows
The sensitivity of estuarine aragonite saturation state and pH to the carbonate chemistry of a freshet-dominated river
Ocean acidification and nutrient limitation synergistically reduce growth and photosynthetic performances of a green tide alga Ulva linza
Interannual sedimentary effluxes of alkalinity in the southern North Sea: model results compared with summer observations
Effects of hypoxia and non-lethal shell damage on shell mechanical and geochemical properties of a calcifying polychaete
Effects of elevated CO2 and temperature on phytoplankton community biomass, species composition and photosynthesis during an experimentally induced autumn bloom in the western English Channel
N and P as ultimate and proximate limiting nutrients in the northern Gulf of Mexico: implications for hypoxia reduction strategies
A Baltic Sea estuary as a phosphorus source and sink after drastic load reduction: seasonal and long-term mass balances for the Stockholm inner archipelago for 1968–2015
The competing impacts of climate change and nutrient reductions on dissolved oxygen in Chesapeake Bay
Phytoplankton response to a plume front in the northern South China Sea
Carbonate system parameters of an algal-dominated reef along West Maui
Natural ocean acidification at Papagayo upwelling system (north Pacific Costa Rica): implications for reef development
Biogeochemical characteristics of suspended particulate matter in deep chlorophyll maximum layers in the southern East China Sea
Hurricane Arthur and its effect on the short-term variability of pCO2 on the Scotian Shelf, NW Atlantic
Yang Li, Guisheng Song, Philippe Massicotte, Fangming Yang, Ruihuan Li, and Huixiang Xie
Biogeosciences, 16, 2751–2770, https://doi.org/10.5194/bg-16-2751-2019, https://doi.org/10.5194/bg-16-2751-2019, 2019
Short summary
Short summary
We surveyed the spatial and seasonal variations and estimated the seaward export of DOM in the of Pearl River estuary (PRE), China. The concentration of DOM in this estuary decreases from land to sea but the change in its chemical character is marginal. The concentration and export of DOM are the lowest among the world's major rivers. Yet DOM delivered from the PRE is protein-rich and can be readily used by microbes, thereby exerting a potentially important impact on the local marine ecosystem.
Bennet Juhls, Pier Paul Overduin, Jens Hölemann, Martin Hieronymi, Atsushi Matsuoka, Birgit Heim, and Jürgen Fischer
Biogeosciences, 16, 2693–2713, https://doi.org/10.5194/bg-16-2693-2019, https://doi.org/10.5194/bg-16-2693-2019, 2019
Short summary
Short summary
In this article, we present the variability and characteristics of dissolved organic matter at the fluvial–marine transition in the Laptev Sea from a unique dataset collected during 11 Arctic expeditions. We develop a new relationship between dissolved organic carbon (DOC) and coloured dissolved organic matter absorption, which is used to estimate surface water DOC concentration from space. We believe that our findings help current efforts to monitor ongoing changes in the Arctic carbon cycle.
Minkyoung Kim, Eun Jin Yang, Hyung Jeek Kim, Dongseon Kim, Tae-Wan Kim, Hyoung Sul La, SangHoon Lee, and Jeomshik Hwang
Biogeosciences, 16, 2683–2691, https://doi.org/10.5194/bg-16-2683-2019, https://doi.org/10.5194/bg-16-2683-2019, 2019
Short summary
Short summary
Unexpectedly, in sediment traps deployed in the Antarctic Amundsen Sea to catch small sinking particles in the water, large benthic invertebrates such as long and slender worms, baby sea urchins, and small scallops were found. We suggest three hypotheses: lifting of these animals by anchor ice formation and subsequent transport by ice rafting, spending their juvenile period in a habitat underneath the sea ice and subsequent falling, or their active use of the current as a means of dispersal.
Alysia E. Herr, Ronald P. Kiene, John W. H. Dacey, and Philippe D. Tortell
Biogeosciences, 16, 1729–1754, https://doi.org/10.5194/bg-16-1729-2019, https://doi.org/10.5194/bg-16-1729-2019, 2019
Short summary
Short summary
Dimethylsulfide (DMS) is an essential component of the global sulfur cycle and a major source of climate-influencing aerosols. We examine the drivers of DMS concentration gradients along the British Columbia shelf by comparing DMS measurements to environmental variables and biological rates. We further combine new and existing data sets to provide a new summertime DMS climatology for the northeast subarctic Pacific. Our results highlight the importance of phytoplankton taxonomy to DMS cycling.
Jens K. Ehn, Rick A. Reynolds, Dariusz Stramski, David Doxaran, Bruno Lansard, and Marcel Babin
Biogeosciences, 16, 1583–1605, https://doi.org/10.5194/bg-16-1583-2019, https://doi.org/10.5194/bg-16-1583-2019, 2019
Short summary
Short summary
Beam attenuation at 660 nm and suspended particle matter (SPM) relationships were determined during the MALINA cruise in August 2009 to the Canadian Beaufort Sea in order to expand our knowledge of particle distributions in Arctic shelf seas. The relationship was then used to determine SPM distributions for four other expeditions to the region. SPM patterns on the shelf were explained by an interplay between wind forcing, river discharge, and melting sea ice that controls the circulation.
Widya Ratmaya, Dominique Soudant, Jordy Salmon-Monviola, Martin Plus, Nathalie Cochennec-Laureau, Evelyne Goubert, Françoise Andrieux-Loyer, Laurent Barillé, and Philippe Souchu
Biogeosciences, 16, 1361–1380, https://doi.org/10.5194/bg-16-1361-2019, https://doi.org/10.5194/bg-16-1361-2019, 2019
Short summary
Short summary
This work reports the consequences of nutrient management strategy, an example from southwestern Europe focused mainly on P reduction. Upstream rivers reveal indices of recoveries following the significant diminution of P, while eutrophication continues to increase downstream, especially when N is the limiting factor. This long-term ecosystem-scale analysis provides more arguments for a dual-nutrient (N and P) management strategy to mitigate eutrophication along the freshwater–marine continuum.
Katja Fennel, Simone Alin, Leticia Barbero, Wiley Evans, Timothée Bourgeois, Sarah Cooley, John Dunne, Richard A. Feely, Jose Martin Hernandez-Ayon, Xinping Hu, Steven Lohrenz, Frank Muller-Karger, Raymond Najjar, Lisa Robbins, Elizabeth Shadwick, Samantha Siedlecki, Nadja Steiner, Adrienne Sutton, Daniela Turk, Penny Vlahos, and Zhaohui Aleck Wang
Biogeosciences, 16, 1281–1304, https://doi.org/10.5194/bg-16-1281-2019, https://doi.org/10.5194/bg-16-1281-2019, 2019
Short summary
Short summary
We review and synthesize available information on coastal ocean carbon fluxes around North America (NA). There is overwhelming evidence, compiled and discussed here, that the NA coastal margins act as a sink. Our synthesis shows the great diversity in processes driving carbon fluxes in different coastal regions, highlights remaining gaps in observations and models, and discusses current and anticipated future trends with respect to carbon fluxes and acidification.
Zong-Pei Jiang, Wei-Jun Cai, John Lehrter, Baoshan Chen, Zhangxian Ouyang, Chengfeng Le, and Brian J. Roberts
Biogeosciences Discuss., https://doi.org/10.5194/bg-2019-88, https://doi.org/10.5194/bg-2019-88, 2019
Revised manuscript accepted for BG
Short summary
Short summary
The biological production and air-sea CO2 exchange in the surface water in the northern Gulf of Mexico during springtime was mainly controlled by the changes in the availability of light and nutrients during the river-ocean mixing process. The slow air-sea CO2 exchange rate and buffering effect of the CO2 system may result in decoupling between biological production and CO2 flux.
Robin Bénard, Maurice Levasseur, Michael Scarratt, Sonia Michaud, Michel Starr, Alfonso Mucci, Gustavo Ferreyra, Michel Gosselin, Jean-Éric Tremblay, Martine Lizotte, and Gui-Peng Yang
Biogeosciences, 16, 1167–1185, https://doi.org/10.5194/bg-16-1167-2019, https://doi.org/10.5194/bg-16-1167-2019, 2019
Short summary
Short summary
We present rare data on the combined effects of acidification and warming on dimethylsulfide (DMS) during a mesocosm experiment. Our results show a reduction of DMS under elevated pCO2, but warming the mesocosms by 5 °C translated into a positive offset in concentrations of DMS over the whole range of pCO2 tested. Our results suggest that warming could mitigate the expected reduction in DMS production due to OA, even increasing the net DMS production, with possible repercussions for the climate.
Saisiri Chaichana, Tim Jickells, and Martin Johnson
Biogeosciences, 16, 1073–1096, https://doi.org/10.5194/bg-16-1073-2019, https://doi.org/10.5194/bg-16-1073-2019, 2019
Short summary
Short summary
Organic molecules dissolved in the waters of coastal seas (DOM) are a potentially important vector for carbon transport and storage in the open ocean. DOM carbon and nitrogen concentrations from two consecutive summers in the North Sea show a strong pattern of concentrations decreasing away from land. We also observe significant differences between the years in both the DOM concentration and C : N ratios, suggesting that carbon export from shelf seas might be mediated by organic matter cycling.
Filippa Fransner, Agneta Fransson, Christoph Humborg, Erik Gustafsson, Letizia Tedesco, Robinson Hordoir, and Jonas Nycander
Biogeosciences, 16, 863–879, https://doi.org/10.5194/bg-16-863-2019, https://doi.org/10.5194/bg-16-863-2019, 2019
Short summary
Short summary
Although rivers carry large amounts of organic material to the oceans, little is known about what fate it meets when it reaches the sea. In this study we are investigating the fate of the carbon in this organic matter by the use of a numerical model in combination with ship measurements from the northern Baltic Sea. Our results suggests that there is substantial remineralization taking place, transforming the organic carbon into CO2, which is released to the atmosphere.
Rachel M. Horwitz, Alex E. Hay, William J. Burt, Richard A. Cheel, Joseph Salisbury, and Helmuth Thomas
Biogeosciences, 16, 605–616, https://doi.org/10.5194/bg-16-605-2019, https://doi.org/10.5194/bg-16-605-2019, 2019
Short summary
Short summary
High-frequency CO2 measurements are used to quantify the daily and tidal cycles of dissolved carbon in the Bay of Fundy – home to the world's largest tides. The oscillating tidal flows drive a net carbon transport, and these results suggest that previously unaccounted for tidal variation could substantially modulate the coastal ocean's response to global ocean acidification. Evaluating the impact of rising atmospheric CO2 on coastal systems requires understanding this short-term variability.
Erik Gustafsson, Mathilde Hagens, Xiaole Sun, Daniel C. Reed, Christoph Humborg, Caroline P. Slomp, and Bo G. Gustafsson
Biogeosciences, 16, 437–456, https://doi.org/10.5194/bg-16-437-2019, https://doi.org/10.5194/bg-16-437-2019, 2019
Short summary
Short summary
This work highlights that iron (Fe) dynamics plays a key role in the release of alkalinity from sediments, as exemplified for the Baltic Sea. It furthermore demonstrates that burial of Fe sulfides should be included in alkalinity budgets of low-oxygen basins. The sedimentary alkalinity generation may undergo large changes depending on both organic matter loads and oxygen conditions. Enhanced release of alkalinity from the seafloor can increase the CO2 storage capacity of seawater.
Neus Garcias-Bonet, Raquel Vaquer-Sunyer, Carlos M. Duarte, and Núria Marbà
Biogeosciences, 16, 167–175, https://doi.org/10.5194/bg-16-167-2019, https://doi.org/10.5194/bg-16-167-2019, 2019
Short summary
Short summary
We assess the impact of warming on nitrogen fixation in three key Mediterranean macrophytes by experimentally measuring sediment nitrogen fixation rates at current and projected seawater temperature by 2100 under a scenario of moderate greenhouse gas emissions. The temperature dependence of nitrogen fixation could potentially increase rates by 37 % by the end of the century, with important consequences for primary production in coastal ecosystems.
Neus Garcias-Bonet, Marco Fusi, Muhammad Ali, Dario R. Shaw, Pascal E. Saikaly, Daniele Daffonchio, and Carlos M. Duarte
Biogeosciences, 15, 7333–7346, https://doi.org/10.5194/bg-15-7333-2018, https://doi.org/10.5194/bg-15-7333-2018, 2018
Short summary
Short summary
Nitrogen (N) loads are detrimental for coastal ecosystems. We measured the balance between N losses and gains in a Red Sea seagrass. The N loss was higher than N2 fixed, pointing out the importance of seagrasses in removing N from the system. N2 losses increased with temperature. Therefore, the forecasted warming could increase the N2 flux to the atmosphere, potentially impacting seagrass productivity and their capacity to mitigate climate change but also enhancing their potential N removal.
Jørgen Bendtsen and Katherine Richardson
Biogeosciences, 15, 7315–7332, https://doi.org/10.5194/bg-15-7315-2018, https://doi.org/10.5194/bg-15-7315-2018, 2018
Short summary
Short summary
New production based on nutrients entering the well-lit surface layer is important for understanding marine ecosystems. Measurements of primary production and turbulence across the shelf edge in the northeastern portion of the North Sea show that new production is concentrated around the shelf-edge zone. The shelf-edge zone is, therefore, a major nutrient supplier to the productive surface layer and makes this area important for higher trophic levels such as zooplankton and fish.
Raphaël Savelli, Christine Dupuy, Laurent Barillé, Astrid Lerouxel, Katell Guizien, Anne Philippe, Pierrick Bocher, Pierre Polsenaere, and Vincent Le Fouest
Biogeosciences, 15, 7243–7271, https://doi.org/10.5194/bg-15-7243-2018, https://doi.org/10.5194/bg-15-7243-2018, 2018
Short summary
Short summary
We simulate the benthic microalgae seasonal cycle on a temperate intertidal mudflat by combining a physical–biological coupled model with remotely sensed and in situ data. While optimal light and temperature conditions lead to a spring bloom, thermo-inhibition and grazing result in a summer depression of biomass. The model ability to infer mechanisms driving the seasonal cycle could open the door to the contribution of productive intertidal biofilms to the coastal carbon cycle.
Antonio Fuentes-Lema, Henar Sanleón-Bartolomé, Luis M. Lubián, and Cristina Sobrino
Biogeosciences, 15, 6927–6940, https://doi.org/10.5194/bg-15-6927-2018, https://doi.org/10.5194/bg-15-6927-2018, 2018
Short summary
Short summary
In contrast to phytoplankton, ocean acidification's (OA's) effects on bacterioplankton are poorly understood. Microcosm experiments to assess bacterioplankton's response to organic matter obtained under current and future CO2 levels were performed. An analysis of bacterial abundance, production, respiration, viability and changes in DOM concentration showed that OA affects bacterial metabolism through changes in the organic matter more than directly affecting future CO2 concentration.
Patrick Martin, Nagur Cherukuru, Ashleen S. Y. Tan, Nivedita Sanwlani, Aazani Mujahid, and Moritz Müller
Biogeosciences, 15, 6847–6865, https://doi.org/10.5194/bg-15-6847-2018, https://doi.org/10.5194/bg-15-6847-2018, 2018
Short summary
Short summary
The carbon cycle is a key control for the Earth's climate. Every year rivers deliver a lot of organic carbon to coastal seas, but we do not know what happens to this carbon, particularly in the tropics. We show that rivers in Borneo deliver carbon from peat swamps to the sea with at most minimal biological or chemical alteration in estuaries, but sunlight can rapidly oxidise this carbon to CO2. This means that south-east Asian seas are likely hotspots of terrestrial carbon decomposition.
Jeffrey W. Krause, Carlos M. Duarte, Israel A. Marquez, Philipp Assmy, Mar Fernández-Méndez, Ingrid Wiedmann, Paul Wassmann, Svein Kristiansen, and Susana Agustí
Biogeosciences, 15, 6503–6517, https://doi.org/10.5194/bg-15-6503-2018, https://doi.org/10.5194/bg-15-6503-2018, 2018
Short summary
Short summary
Diatoms can dominate the Arctic Ocean spring bloom, the key annual event for regional food webs. Diatom growth requires silicon and this nutrient has been declining in the European Arctic. This study communicates an unprecedented combination of silicon-cycling measurements around Svalbard during the spring and shows that dissolved silicon can limit diatom production. These results suggest an important coupling of silicon and carbon cycling during the spring bloom in the European Arctic.
Mark J. Hopwood, Carolina Santana-González, Julian Gallego-Urrea, Nicolas Sanchez, Eric P. Achterberg, Murat V. Ardelan, Martha Gledhill, Melchor González-Dávila, Linn Hoffmann, Øystein Leiknes, Juana Magdalena Santana-Casiano, Tatiana M. Tsagaraki, and David Turner
Biogeosciences Discuss., https://doi.org/10.5194/bg-2018-439, https://doi.org/10.5194/bg-2018-439, 2018
Revised manuscript accepted for BG
Short summary
Short summary
Fe(III)-organic species are thought to account for > 99 % of dissolved Fe in seawater. Here we quantified Fe(II) during experiments in Svalbard, Gran Canaria and Patagonia. Fe(II) was always a measurable fraction of dissolved Fe- up to 65 %. Furthermore, when Fe(II) was allowed to decay in the dark it remained present longer than predicted by kinetic equations suggesting that Fe(II) is an more important fraction of dissolved Fe in seawater than widely recognized.
Julia Wukovits, Max Oberrauch, Annekatrin J. Enge, and Petra Heinz
Biogeosciences, 15, 6185–6198, https://doi.org/10.5194/bg-15-6185-2018, https://doi.org/10.5194/bg-15-6185-2018, 2018
Short summary
Short summary
Single-celled, benthic foraminifera play a major role in marine biogeochemical cycling. This study compares the organic-matter-derived carbon and nitrogen processing of two abundant intertidal foraminifera species. The results of our laboratory feeding experiments suggest a significant difference in the contributions of each species to coastal carbon and nitrogen fluxes, which is mainly attributed to their different metabolic lifestyles.
Elizabeth N. Teel, Xiao Liu, Bridget N. Seegers, Matthew A. Ragan, William Z. Haskell, Burton H. Jones, and Naomi M. Levine
Biogeosciences, 15, 6151–6165, https://doi.org/10.5194/bg-15-6151-2018, https://doi.org/10.5194/bg-15-6151-2018, 2018
Short summary
Short summary
Time-series sites have been instrumental in providing insight into how the ocean functions. However, to extrapolate the results from a single site to a larger region, the dynamics at the site must be placed into the context of regional-scale dynamics. We develop a framework for determining the spatial domain of a time-series site using high-resolution data. This framework quantifies the representativeness of the site and can be used to improve sampling to better capture the dynamics at the site.
Qixing Ji, Claudia Frey, Xin Sun, Melanie Jackson, Yea-Shine Lee, Amal Jayakumar, Jeffrey C. Cornwell, and Bess B. Ward
Biogeosciences, 15, 6127–6138, https://doi.org/10.5194/bg-15-6127-2018, https://doi.org/10.5194/bg-15-6127-2018, 2018
Short summary
Short summary
Nitrous oxide (N2O) is a strong greenhouse gas and ozone-depletion agent. Intense N2O effluxes had been observed from nutrient-rich estuaries with human impacts, such as the Chesapeake Bay. We report that increased nitrogen availability and low-oxygen conditions stimulate N2O production. Thus, controlling the nutrient input to the bay will decrease nitrogen availability and alleviate eutrophication, leading to water column reoxygenation, and subsequently will mitigate N2O emission.
Bin Wang, Jiatang Hu, Shiyu Li, Liuqian Yu, and Jia Huang
Biogeosciences, 15, 6105–6125, https://doi.org/10.5194/bg-15-6105-2018, https://doi.org/10.5194/bg-15-6105-2018, 2018
Short summary
Short summary
A physical–biogeochemical model was applied to study the response of hypoxia and oxygen dynamics to different riverine inputs. Results showed that the hypoxia in the Pearl River estuary was most sensitive to riverine inputs of POC, followed by DO and nutrients. This study also highlighted the significance of re-aeration for its buffering effects; i.e. the re-aeration responded rapidly to the perturbations of riverine inputs and in turn moderated the DO changes impacted by these perturbations.
Mallory A. Sea, Neus Garcias-Bonet, Vincent Saderne, and Carlos M. Duarte
Biogeosciences, 15, 5365–5375, https://doi.org/10.5194/bg-15-5365-2018, https://doi.org/10.5194/bg-15-5365-2018, 2018
Short summary
Short summary
Mangroves are capable of storing carbon in their roots, leaves, and in the sediment; however they can also emit carbon as greenhouse gases (GHG) to the atmosphere. In this study, we collected sediment cores and calculated GHG flux rates from mangrove forests along the Red Sea coastline. Using flux rates reported in this study, we determined that Red Sea mangroves are net carbon sinks, storing more carbon than they emit. This study provides rationale to conserve and expand Red Sea mangroves.
Alessandra D'Angelo, Federico Giglio, Stefano Miserocchi, Anna Sanchez-Vidal, Stefano Aliani, Tommaso Tesi, Angelo Viola, Mauro Mazzola, and Leonardo Langone
Biogeosciences, 15, 5343–5363, https://doi.org/10.5194/bg-15-5343-2018, https://doi.org/10.5194/bg-15-5343-2018, 2018
Short summary
Short summary
A 6-year time series of physical parameters and particle fluxes collected by a mooring in Kongsfjorden (Svalbard) suggests that the subglacial and watershed run-off driven by air temperature are the main processes affecting the lithogenic supply. As the Arctic temperature rises, glacier material will increase accordingly. The winter inflow of warm Atlantic waters is progressively increasing, hampering the nutrient supply from the bottom waters and severely reducing the biological production.
Young-Tae Son, Jae-Hyoung Park, and SungHyun Nam
Biogeosciences, 15, 5237–5247, https://doi.org/10.5194/bg-15-5237-2018, https://doi.org/10.5194/bg-15-5237-2018, 2018
Short summary
Short summary
This study reveals episodic blooms often accompanying abrupt changes in sea surface salinity and wind forcing off the east coast are triggered by the equatorward and cross-shore advection of chlorophyll-rich plume water of northern origin. Since previous studies have not focused on the episodic blooms near the coast over the course of days to weeks during the summer, we tried to address the roles of the physical advection process in the marine ecosystem based on observations of three summers.
Lei Hou, Xiabing Xie, Xianhui Wan, Shuh-Ji Kao, Nianzhi Jiao, and Yao Zhang
Biogeosciences, 15, 5169–5187, https://doi.org/10.5194/bg-15-5169-2018, https://doi.org/10.5194/bg-15-5169-2018, 2018
Short summary
Short summary
The niche differentiation of ammonia and nitrite oxidizers is controversial because they display disparate patterns in different environments. Combining molecular and nitrification rate analyses, our study clarified that water mass mixing and the substrate availability primarily regulated the niche differentiation of nitrifier populations along a salinity gradient. The nitrifier populations may have specific adaptations to different substrate conditions through their ecological strategies.
Elisa Lovecchio, Nicolas Gruber, and Matthias Münnich
Biogeosciences, 15, 5061–5091, https://doi.org/10.5194/bg-15-5061-2018, https://doi.org/10.5194/bg-15-5061-2018, 2018
Short summary
Short summary
We find that the ocean's flow on scales of a few tens to a few hundred km has a central role in the lateral redistribution of the organic carbon from the coast to the open ocean. Narrow coastal filaments drive the offshore flux of organic carbon and strongly enhance its availability up to 1000 km from the coast. Eddies extend the flux up to 2000 km offshore containing 30 % of the organic matter in the open waters. Resolving these scales is essential to capture the coastal/open ocean coupling.
Marine Bretagnon, Aurélien Paulmier, Véronique Garçon, Boris Dewitte, Séréna Illig, Nathalie Leblond, Laurent Coppola, Fernando Campos, Federico Velazco, Christos Panagiotopoulos, Andreas Oschlies, J. Martin Hernandez-Ayon, Helmut Maske, Oscar Vergara, Ivonne Montes, Philippe Martinez, Edgardo Carrasco, Jacques Grelet, Olivier Desprez-De-Gesincourt, Christophe Maes, and Lionel Scouarnec
Biogeosciences, 15, 5093–5111, https://doi.org/10.5194/bg-15-5093-2018, https://doi.org/10.5194/bg-15-5093-2018, 2018
Short summary
Short summary
In oxygen minimum zone, the fate of the organic matter is a key question as the low oxygen condition would preserve the OM and thus enhance the biological carbon pump while the high microbial activity would foster the remineralisation and the greenhouse gases emission. To investigate this paradigm, sediment traps were deployed off Peru. We pointed out the influence of the oxygenation as well as the organic matter quantity and quality on the carbon transfer efficiency in the oxygen minimum zone.
Christian Schlosser, Katrin Schmidt, Alfred Aquilina, William B. Homoky, Maxi Castrillejo, Rachel A. Mills, Matthew D. Patey, Sophie Fielding, Angus Atkinson, and Eric P. Achterberg
Biogeosciences, 15, 4973–4993, https://doi.org/10.5194/bg-15-4973-2018, https://doi.org/10.5194/bg-15-4973-2018, 2018
Short summary
Short summary
Iron (Fe) emanating from the South Georgia shelf system fuels large phytoplankton blooms downstream of the island. However, the actual supply mechanisms of Fe are unclear. We found that shelf-sediment-derived iron and iron released from Antarctic krill control the Fe distribution in the shelf waters around South Georgia. The majority of the Fe appears to be derived from recycling of Fe-enriched particles that are transported with the water masses into the bloom region.
Guang Gao, Jianrong Xia, Jinlan Yu, Jiale Fan, and Xiaopeng Zeng
Biogeosciences, 15, 4871–4882, https://doi.org/10.5194/bg-15-4871-2018, https://doi.org/10.5194/bg-15-4871-2018, 2018
Short summary
Short summary
Diatoms commonly dominate algal blooms. However, little is known regarding how diatoms overcome CO2 limitation and maintain growth during blooms. Our results show that enrichment of phosphorus enhances diatoms’ photosynthetic pigment, photosynthetic rate, and the capacity for inorganic carbon acquisition. This study indicates the essential role of phosphorus in coping with CO2 limitation for diatoms and sheds light on how bloom-forming algae cope with carbon limitation during blooms.
Robin Bénard, Maurice Levasseur, Michael Scarratt, Marie-Amélie Blais, Alfonso Mucci, Gustavo Ferreyra, Michel Starr, Michel Gosselin, Jean-Éric Tremblay, and Martine Lizotte
Biogeosciences, 15, 4883–4904, https://doi.org/10.5194/bg-15-4883-2018, https://doi.org/10.5194/bg-15-4883-2018, 2018
Short summary
Short summary
We investigated the combined effect of ocean acidification and warming on the dynamics of the phytoplankton fall boom in the Lower St. Lawrence Estuary, Canada. Twelve 2600 L mesocosms were used to cover a wide range of pH and two temperatures. We found that warming, rather than acidification, is more likely to alter the autumnal bloom in this estuary in the decades to come by stimulating the development and senescence of diatoms, and promoting picocyanobacteria proliferation.
Elizabeth Fay Belshe, Dieuwke Hoeijmakers, Natalia Herran, Matern Mtolera, and Mirta Teichberg
Biogeosciences, 15, 4609–4626, https://doi.org/10.5194/bg-15-4609-2018, https://doi.org/10.5194/bg-15-4609-2018, 2018
Short summary
Short summary
This work aimed to see if easy-to-measure characteristics of seagrass plants can be used to identify differences in sediment organic carbon (OC) storage. We found clear differences in three characteristics thought to influence sediment OC; however, these differences did not translate into different amounts of sediment OC, and sediment OC was very low. This highlights the complexity of OC cycling in seagrasses and cautions against the use of plant characteristics as a proxy for OC storage.
John W. Runcie, Christian Krause, Sergio A. Torres Gabarda, and Maria Byrne
Biogeosciences, 15, 4291–4299, https://doi.org/10.5194/bg-15-4291-2018, https://doi.org/10.5194/bg-15-4291-2018, 2018
Short summary
Short summary
pH in coastal waters can be highly variable. A means to measure this variation is needed. A fully autonomous submersible fluorescence-based pH monitoring device incorporating additional sensors for temperature and salinity was deployed in or adjacent to a shallow estuary for week-long intervals. Results and calculated aragonite/calcite saturation values are presented. The device is well suited to continuous flow-through or stand-alone measurements with a precision of at least 0.007 pH units.
Toko Tanaya, Kenta Watanabe, Shoji Yamamoto, Chuki Hongo, Hajime Kayanne, and Tomohiro Kuwae
Biogeosciences, 15, 4033–4045, https://doi.org/10.5194/bg-15-4033-2018, https://doi.org/10.5194/bg-15-4033-2018, 2018
Short summary
Short summary
We empirically show that not only suspended-particle trapping but also the direct supply of belowground seagrass detritus can be the dominant organic carbon enrichment pathway of seagrass sediments. The relative importance of these two pathways may depend on the belowground biomass productivity. Our work identifies a previously overlooked factor controlling the carbon sink capacity of seagrass meadows and contributes to more precise estimates of global blue carbon stocks.
Benjamin L. Moore-Maley, Debby Ianson, and Susan E. Allen
Biogeosciences, 15, 3743–3760, https://doi.org/10.5194/bg-15-3743-2018, https://doi.org/10.5194/bg-15-3743-2018, 2018
Short summary
Short summary
Estuaries are vulnerable to ocean acidification, but present-day estuarine pH and aragonite saturation state variability are larger than in the open ocean. Using a numerical model of a large estuary and data from its primary river, we find that changes in river alkalinity relative to river carbon may determine a small but significant portion of this variability, while the majority is controlled by photosynthesis/respiration. Future watershed changes may shift the river alkalinity–carbon balance.
Guang Gao, John Beardall, Menglin Bao, Can Wang, Wangwang Ren, and Juntian Xu
Biogeosciences, 15, 3409–3420, https://doi.org/10.5194/bg-15-3409-2018, https://doi.org/10.5194/bg-15-3409-2018, 2018
Short summary
Short summary
We investigated the physiological responses of a green tide alga to the combination of ocean acidification and nutrient limitation. Elevated pCO2 did not affect the growth rate when cultured under nutrient replete conditions but reduced it under P limitation. P limitation resulted in a larger inhibition in growth for sporelings compared to adult plants. These findings indicate that ocean acidification and nutrient limitation may hinder the occurrence of green tides in future ocean environment.
Johannes Pätsch, Wilfried Kühn, and Katharina Dorothea Six
Biogeosciences, 15, 3293–3309, https://doi.org/10.5194/bg-15-3293-2018, https://doi.org/10.5194/bg-15-3293-2018, 2018
Short summary
Short summary
Biogeochemical shelf sea modelling has a long tradition. Most models include early diagenesis sediment modules for remineralization of organic matter. The model presented here also simulates alkalinity, which is exported into the pelagic system. There the produced alkalinity joins in the carbonate system and is able to buffer invading atmospheric CO2. The input of nitrate via rivers stimulates alkalinity generation within the sediment, which in turn reduces the acidification of coastal areas.
Jonathan Y. S. Leung and Napo K. M. Cheung
Biogeosciences, 15, 3267–3276, https://doi.org/10.5194/bg-15-3267-2018, https://doi.org/10.5194/bg-15-3267-2018, 2018
Short summary
Short summary
Some calcifiers can sustain normal shell growth under hypoxia, which may involve trade-offs against shell quality. This hypothesis was tested by measuring the shell growth and shell properties of a calcifying polychaete. Despite the adverse effect on metabolism, we found that hypoxia had limited impact on shell growth probably due to the changes in shell properties as trade-offs. This suggests that such plastic response could be fundamental for calcifiers to maintain calcification under hypoxia.
Matthew Keys, Gavin Tilstone, Helen S. Findlay, Claire E. Widdicombe, and Tracy Lawson
Biogeosciences, 15, 3203–3222, https://doi.org/10.5194/bg-15-3203-2018, https://doi.org/10.5194/bg-15-3203-2018, 2018
Short summary
Short summary
We conducted a microcosm experiment on a natural phytoplankton community under year 2100 predicted CO2 concentrations and temperature. Biomass and photosynthetic rates were significantly increased by elevated CO2 and elevated temperature. In contrast, the combined influence of these two factors had little effect. This suggests coastal phytoplankton productivity may not be influenced by future conditions. However, the combined influence promoted the greatest diversity and increased HAB species.
Katja Fennel and Arnaud Laurent
Biogeosciences, 15, 3121–3131, https://doi.org/10.5194/bg-15-3121-2018, https://doi.org/10.5194/bg-15-3121-2018, 2018
Short summary
Short summary
Increasing human-derived nutrient inputs to coastal oceans lead to spreading dead zones around the world. Here a biogeochemical model for the northern Gulf of Mexico, where nutrients from the Mississippi River create the largest dead zone in North American coastal waters, is used for the first time to show the effects of single and dual nutrient reductions of nitrogen (N) and phosphorus (P). Significant reductions in N or N&P load would be required to significantly reduce hypoxia in this system.
Jakob Walve, Maria Sandberg, Ulf Larsson, and Christer Lännergren
Biogeosciences, 15, 3003–3025, https://doi.org/10.5194/bg-15-3003-2018, https://doi.org/10.5194/bg-15-3003-2018, 2018
Short summary
Short summary
Phosphorus (P) release from sediments can delay recovery of eutrophicated waters. For the Stockholm inner archipelago (Baltic Sea), a P budget shows that legacy P release was small and restricted to the 20 years following the large P load reduction in 1975. Current P release is largely a seasonal P recycling in oxic conditions and the area is still a poor P sink. Short P turnover time in the area means that measures binding P in sediments will not be very effective in improving water quality.
Isaac D. Irby, Marjorie A. M. Friedrichs, Fei Da, and Kyle E. Hinson
Biogeosciences, 15, 2649–2668, https://doi.org/10.5194/bg-15-2649-2018, https://doi.org/10.5194/bg-15-2649-2018, 2018
Short summary
Short summary
We use an estuarine-watershed modeling system of the Chesapeake Bay to examine the impact climate change may have on the ability of nutrient reduction regulations to increase dissolved oxygen. We find that climate change will move the onset of hypoxia ~7 days earlier, while also decreasing oxygen in the bay primarily due to increased temperature. While this effect is smaller than the increase in oxygen due to nutrient reduction, it is enough to limit the regulation's future effectiveness.
Qian P. Li, Weiwen Zhou, Yinchao Chen, and Zhengchao Wu
Biogeosciences, 15, 2551–2563, https://doi.org/10.5194/bg-15-2551-2018, https://doi.org/10.5194/bg-15-2551-2018, 2018
Short summary
Short summary
Variabilities of phytoplankton physiology and size-fractionated growth could be related to the physical dynamics of a frontal system. While the river plume increased growths of three phytoplankton size classes, both nano- and picocells became saturated at the frontal zone. Vertical mixing/upwelling improved phytoplankton growth on both sides of the front by altering nutrient concentrations and ratios. These are important for understanding physically driven ecosystem dynamics in the shelf sea.
Nancy G. Prouty, Kimberly K. Yates, Nathan Smiley, Chris Gallagher, Olivia Cheriton, and Curt D. Storlazzi
Biogeosciences, 15, 2467–2480, https://doi.org/10.5194/bg-15-2467-2018, https://doi.org/10.5194/bg-15-2467-2018, 2018
Short summary
Short summary
Coral reefs provide critical shoreline protection and important services, such as marine habitat, tourism, fishing, and recreation. However, coral reefs are being threatened by global climate change. If we are to understand how reefs will response to climate change, we must also understand how local conditions may impact the reefs. Our study offers a first glimpse into how human inputs of nutrients might add an additional stressor to reef health.
Celeste Sánchez-Noguera, Ines Stuhldreier, Jorge Cortés, Carlos Jiménez, Álvaro Morales, Christian Wild, and Tim Rixen
Biogeosciences, 15, 2349–2360, https://doi.org/10.5194/bg-15-2349-2018, https://doi.org/10.5194/bg-15-2349-2018, 2018
Short summary
Short summary
The Papagayo upwelling system is a natural laboratory for studying ecosystems' response to ocean acidification (OA). We measured pH and pCO2 in situ with high temporal resolution and compared them with data available from upwelling season. Local coral reefs are exposed to acidic and undersaturated waters in upwelling and non-upwelling events. These restrictive conditions occur alongside local stressors, potentially decreasing reefs' resilience and increasing their vulnerability under future OA.
Qianqian Liu, Selvaraj Kandasamy, Baozhi Lin, Huawei Wang, and Chen-Tung Arthur Chen
Biogeosciences, 15, 2091–2109, https://doi.org/10.5194/bg-15-2091-2018, https://doi.org/10.5194/bg-15-2091-2018, 2018
Short summary
Short summary
Understanding the global carbon cycling in the marginal seas is crucial to realize the climate–carbon link. Here we characterized the source of suspended particulate matter along the deep chlorophyll maximum layers and found that organic matter in these layers was largely derived from the primary production. Also this layer is insignificantly influenced by the land-derived organic matter. Our results may have a direct implication on the application of isotopic mixing models in marine sediments.
Jonathan Lemay, Helmuth Thomas, Susanne E. Craig, William J. Burt, Katja Fennel, and Blair J. W. Greenan
Biogeosciences, 15, 2111–2123, https://doi.org/10.5194/bg-15-2111-2018, https://doi.org/10.5194/bg-15-2111-2018, 2018
Short summary
Short summary
We report a detailed mechanistic investigation of the impact of Hurricane Arthur on the CO2 cycling on the Scotian Shelf. We can show that in contrast to common thinking, the deepening of the surface during the summer months can lead to increased CO2 uptake as carbon-poor waters from subsurface water are brought up to the surface. Only during prolonged storm events is the deepening of the mixed layer strong enough to bring the (expected) carbon-rich water to the surface.
Cited articles
Agawin, N. S., Duarte, C. M., and Agustí, S.: Nutrient and temperature
control of the contribution of picoplankton to phytoplankton biomass and
production, Limnol. Oceanogr., 45, 591–600, 2000.
Anderson, L. G. and Kaltin, S.: Carbon fluxes in the Arctic Ocean-potential
impact by climate change, Polar Res., 20, 225–232, 2001.
Anderson, L. G., Jutterström, S., Kaltin, S., Jones, E. P., and
Björk, G.: Variability in river runoff distribution in the Eurasian Basin
of the Arctic Ocean, J. Geophys. Res.-Oceans, 109, https://doi.org/10.1029/2003JC001773, 2004.
Anderson, L. G., Jutterström, S., Hjalmarsson, S., Wåhlström, I.,
and Semiletov, I.: Out-gassing of CO2 from Siberian Shelf seas by
terrestrial organic matter decomposition, Geophys. Res. Lett., 36, L20601, https://doi.org/10.1029/2009GL040046,
2009.
Aksnes, D. L. and Egge, J. K.: A theoretical model for nutrient uptake in
phytoplankton, Mar. Ecol.-Prog. Ser., 70, 65–72, 1991.
Ardyna, M., Babin, M., Gosselin, M., Devred, E., Rainville, L., and Tremblay,
J. É.: Recent Arctic Ocean sea ice loss triggers novel fall phytoplankton
blooms, Geophys. Res. Lett., 41, 6207–6212, 2014.
Arrigo, K. R. and van Dijken, G. L.: Secular trends in Arctic Ocean net
primary production, J. Geophys. Res., 116, C09011, https://doi.org/10.1029/2011JC007151,
2011.
Arrigo, K. R. and van Dijken, G. L.: Continued increases in Arctic Ocean
primary production, Prog. Oceanogr., 136, 60–70, 2015.
Arrigo, K. R., van Dijken, G., and Pabi, S.: Impact of a shrinking Arctic ice
cover on marine primary production, Geophys. Res. Lett., 35, L19603, https://doi.org/10.1029/2008GL035028,
2008.
Arrigo, K. R., Perovich, D. K., Pickart, R. S., Brown, Z. W., Van Dijken, G.
L., Lowry, K. E., Mills, M. M., Palmer, M. A., Balch, W. M., Bahr, F., and
Bates, N. R.: Massive phytoplankton blooms under Arctic sea ice, Science,
336, 1408–1408, 2012.
Bates, N. R. and Mathis, J. T.: The Arctic Ocean marine carbon cycle:
evaluation of air-sea CO2 exchanges, ocean acidification impacts and
potential feedbacks, Biogeosciences, 6, 2433–2459,
https://doi.org/10.5194/bg-6-2433-2009, 2009.
Bates, N. R., Moran, S. B., Hansell, D. A., and Mathis, J. T.: An increasing
CO2 sink in the Arctic Ocean due to sea-ice loss, Geophys. Res.
Lett., 33, L23609, https://doi.org/10.1029/2006GL027028, 2006.
Bélanger, S., Babin, M., and Larouche, P.: An empirical ocean color
algorithm for estimating the contribution of chromophoric dissolved organic
matter to total light absorption in optically complex waters, J. Geophys.
Res., 13, C04027, https://doi.org/10.1029/2007JC004436, 2008.
Bélanger, S., Babin, M., and Tremblay, J.-É.: Increasing cloudiness
in Arctic damps the increase in phytoplankton primary production due to sea
ice receding, Biogeosciences, 10, 4087–4101,
https://doi.org/10.5194/bg-10-4087-2013, 2013.
Bhavya, P. S., Kumar, S., Gupta, G. V. M., Sudheesh, V., Sudharma, K. V.,
Varrier, D. S., Dhanya, K. R., and Saravanane, N.: Nitrogen uptake dynamics
in a tropical eutrophic estuary (Cochin estuary) and adjacent coastal regions
during pre-monsoon, Estuar. Coast., 39, 54–67,
https://doi.org/10.1007/s12237-015-9982-y, 2016.
Bhavya, P. S., Kumar, S., Gupta, G. V. M., and Sudheesh, V.: Carbon uptake
rates in the Cochin estuary and adjoining coastal Arabian Sea, Estuar.
Coast., 40, 447–456, https://doi.org/10.1007/s12237-016-0147-4, 2017.
Boetius, A. and Damm, E.: Benthic oxygen uptake, hydrolytic potentials and
microbial biomass at the Arctic continental slope, Deep-Sea Res. Pt. I, 45,
239–275, 1998.
Bopp, L., Monfray, P., Aumont, O., Dufresne, J. L., Le Treut, H., Madec, G.,
Terray, L., and Orr, J. C.: Potential impact of climate change on marine
export production, Global Biogeochem. Cy., 15, 81–99, 2001.
Cai, W. J., Chen, L., Chen, B., Gao, Z., Lee, S. H., Chen, J., Pierrot, D.,
Sullivan, K., Wang, Y., Hu, X., and Huang, W. J.: Decrease in the
CO2 uptake capacity in an ice-free Arctic Ocean basin, Science,
329, 556–559, 2010.
Carmack, E. C. and Macdonald, R. W.: Oceanography of the Canadian Shelf of
the Beaufort Sea: a setting for marine life, Arctic, 55, 29–45,
2002.
Carmack, E. C., Aagaard, K., Swift, J. H., MacDonald, R. W., McLaughlin, F.
A., Jones, E. P., Perkin, R. G., Smith, J. N., Ellis, K. M., and Killius, L.
R.: Changes in temperature and tracer distributions within the Arctic Ocean:
Results from the 1994 Arctic Ocean section, Deep-Sea Res. Pt. II, 44,
1487–1502, 1997.
Clasby, R. C., Horner, R., and Alexander, V.: An in situ method for measuring
primary productivity of Arctic sea ice algae, J. Fish. Res. Board Can., 30,
835–838, 1973.
Codispoti, L. A. and Richards, F. A.: Micronutrient distributions in the East
Siberian and Laptev seas during summer 1963, Arctic, 21, 67–83,
1968.
Comiso, J. C., Parkinson, C. L., Gersten, R., and Stock, L.: Accelerated
decline in the Arctic sea ice cover, Geophys. Res. Lett., 35, L01703, https://doi.org/10.1029/2007GL031972,
2008.
Daufresne, M., Lengfellner, K., and Sommer, U.: Global warming benefits the
small in aquatic ecosystems, P. Natl. Acad. Sci. USA, 106, 12788–12793,
2009.
Dmitrenko, I. A., Polyakov, I. V., Kirillov, S. A., Timokhov, L. A., Simmons,
H. L., Ivanov, V. V., and Walsh, D.: Seasonal variability of Atlantic water
on the continental slope of the Laptev Sea during 2002–2004, Earth Planet.
Sc. Lett., 244, 735–743, 2006.
Dugdale, R. and Goering, J.: Uptake of new and regenerated forms of nitrogen
in primary productivity, Limnol. Oceanogr., 12, 196–206, 1967.
Dugdale, R. C. and Wilkerson, F. P.: The use of 15N to measure
nitrogen uptake in eutrophic oceans; experimental considerations, Limnol.
Oceanogr., 31, 673–689, 1986.
Eastman, R. and Warren, S. G.: Interannual variations of Arctic cloud types
in relation to sea ice, J. Climate, 23, 4216–4232, 2010.
Eppley, R. W. and Thomas, W. H.: Comparison of half-saturation constants for
growth and nitrate uptake of marine phytoplankton, J. Phycol., 5, 375–379,
1969.
Falk-Petersen, S., Hop, H., Budgell, W. P., Hegseth, E. N., Korsnes, R.,
Løyning, T. B., Ørbæk, J. B., Kawamura, T., and Shirasawa, K.:
Physical and ecological processes in the marginal ice zone of the northern
Barents Sea during the summer melt period, J. Marine Syst., 27, 131–159,
2000.
Glibert, P. M.: Regional studies of daily, seasonal and size fraction
variability in ammonium remineralization, Mari. Biol., 70, 209–222, 1982.
Glibert, P. M., Kana, T. M., and Brown, K.: From limitation to excess: the
consequences of substrate excess and stoichiometry for phytoplankton
physiology, trophodynamics and biogeochemistry, and the implications for
modeling, J. Marine Syst., 125, 14–28, 2013.
Gosselin, M., Levasseur, M., Wheeler, P. A., Horner, R. A., and Booth, B. C.:
New measurements of phytoplankton and ice algal production in the Arctic
Ocean, Deep-Sea Res. Pt. II, 44, 1623–1644, 1997.
Gradinger, R.: Sea-ice algae: major contributors to primary production and
algal biomass in the Chukchi and Beaufort seas during May/June 2002, Deep-Sea
Res. Pt. II, 44, 1623–1644, https://doi.org/10.1016/j.dsr2.2008.10.016,
2009.
Grover, J. P.: Influence of cell shape and size on algal competitive ability,
J. Phycol., 25, 402–405, 1989.
Grover, J. P.: Resource competition in a variable environment: phytoplankton
growing according to the variable-internal-stores model, Am. Nat., 138,
811–835, 1991.
Harrison, W. G. and Cota, G. F.: Primary production in polar waters: relation
to nutrient availability, Polar Res., 10, 87–104, 1991.
Harrison W. G., Li, W. K. W., Smith, J. C., Head, E. J. H., and Longhurst, A.
R.: Depth profiles of plankton, particulate organic matter and microbial
activity in the Eastern Canadian Arctic during summer, Polar Biol., 7,
207–224, 1987.
Hein, M., Folager Pedersen, M., and Sand-Jensen, K.: Size-dependent nitrogen
uptake in micro- and macroalgae, Mar. Ecol.-Prog. Ser., 118, 247–253, 1995.
Hill, V., Ardyna, M., Lee, S. H., and Varela, D. E.: Decadal trends in
phytoplankton production in the Pacific Arctic Region from 1950 to 2012,
Deep-Sea Res. Pt. II, https://doi.org/10.1016/j.dsr2.2016.12.015, in press, 2017.
Hill, V. J. and Cota, G. F.: Spatial patterns of primary production in the
Chukchi Sea in the spring and summer of 2002, Deep-Sea Res. Pt. II, 52,
3344–3354, 2005.
Hodal, H. and Kristiansen, S.: The importance of small-celled phytoplankton
in spring blooms at the marginal ice zone in the northern Barents Sea,
Deep-Sea Res. Pt. II, 55, 2176–2185, 2008.
Horner, R. and Schrader, G. C.: Relative contributions of ice algae,
phytoplankton, and benthic microalgae to primary production in nearshore
regions of the Beaufort Sea, Arctic, 35, 485–503, 1982.
Jakobsson, M. and IBCAO Editorial Board Members: Improvement to the
International Bathymetric Chart of the Arctic Ocean (IBCAO): Updating the
Data Base and the Grid Model, EOS T. Am. Geophys. Un., 82, Fall Meet. Suppl.,
Abstract no. OS11B-0371, 2001.
Joo, H., Son, S., Park, J. W., Kang, J. J., Jeong, J. Y., Kwon, J. I., Kang,
C. K., and Lee, S. H.: Small phytoplankton contribution to the total primary
production in the highly productive Ulleung Basin in the East/Japan Sea,
Deep-Sea Res. Pt. II, 143, 54–61, 2017.
Kahru, M., Lee, Z., Mitchell, B. G., and Nevison, C. D.: Effects of sea ice
cover on satellite-detected primary production in the Arctic Ocean, Biol.
Letters, 12, 20160223, https://doi.org/10.1098/rsbl.2016.0223, 2016.
Kirk, J. T. O.: Light and Photosynthesis in the Aquatic Ecosystems, Cambridge
Univ. Press, Cambridge, UK, 1983.
Kwok, R., Cunningham, G. F., Wensnahan, M., Rigor, I., Zwally, H. J., and Yi,
D.: Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008,
J. Geophys. Res., 114, C07005, https://doi.org/10.1029/2009JC005312, 2009.
Lee, S. H. and Whitledge, T. E.: Primary and new production in the deep
Canada Basin during summer 2002, Polar Biol., 28, 190–197, 2005.
Lee, S. H., Whitledge, T. E., and Kang, S.: Recent carbon and nitrogen uptake
rates of phytoplankton in Bering Strait and the Chukchi Sea, Cont. Shelf
Res., 27, 2231–2249, 2007.
Lee, S. H., Joo, H. M., Liu, Z., Chen, J., and He, J.: Phytoplankton
productivity in newly opened waters of the Western Arctic Ocean, Deep-Sea
Res. Pt. II, 81, 18–27, 2012.
Lee, S. H., Yun, M. S., Kim, B. K., Joo, H., Kang, S. J., Kang, C. K., and
Whitledge, T. E.: Contribution of small phytoplankton to total primary
production in the Chukchi Sea, Cont. Shelf Res., 68, 43–50, 2013.
Lee, S. H., Kim, B. K., Lim, Y. J., Joo, H., Kang, J. J., Lee, D., Park, J.,
Ha, S.-Y., and Lee, S. H.: Small phytoplankton contribution to the standing
stocks and the total primary production in the Amundsen Sea, Biogeosciences,
14, 3705–3713, https://doi.org/10.5194/bg-14-3705-2017, 2017a.
Lee, S. H., Joo, H. T., Lee, J. H., Lee, J. H., Kang, J. J., Lee, H. W., Lee, D., and Kang, C. K.: Seasonal carbon
uptake rates of phytoplankton in the northern East/Japan Sea, Deep-Sea Res.
Pt. II, 143, 45–53, https://doi.org/10.1016/j.dsr2.2017.04.009, 2017b.
Legendre, L., Ackley, S. F., Dieckmann, G. S., Gulliksen, B., Horner, R.,
Hoshiai, T., Melnikov, I. A., Reeburgh, W. S., Spindler, M., and Sullivan, C.
W.: Ecology of sea ice biota, Polar Biol., 12, 429–444, 1992.
Levi, B. G.: The decreasing Arctic ice cover, Phys. Today, 53, 19–20,
https://doi.org/10.1063/1.882931, 2000.
Li, J., Glibert, P. M., and Alexander, J. A.: Effects of ambient DIN : DIP
ratio on the nitrogen uptake of harmful dinoflagellate Prorocentrum minimum and Prorocentrum donghaiense in turbidistat, Chin. J.
Oceanol. Limn., 29, 746–761, 2011.
Li, W. K., McLaughlin, F. A., Lovejoy, C., and Carmack, E. C.: Smallest algae
thrive as the Arctic Ocean freshens, Science, 326, 539, https://doi.org/10.1126/science.1179798, 2009.
Martin, J., Tremblay, J. É., Gagnon, J., Tremblay, G., Lapoussière,
A., Jose, C., Poulin, M., Gosselin, M., Gratton, Y., and Michel, C.:
Prevalence, structure and properties of subsurface chlorophyll maxima in
Canadian Arctic waters, Mar. Ecol.-Progr. Ser., 412, 69–84, 2010.
Maslowski, W., Marble, D., Walczowski, W., Schauer, U., Clement, J. L., and
Semtner, A. J.: On climatological mass, heat, and salt transports through the
Barents Sea and Fram Strait from a pan-Arctic coupled ice-ocean model
simulation, J. Geophys. Res.-Oceans, 109, C03032, https://doi.org/10.1029/2001JC001039, 2004.
McCarthy, J. J., Garside, C., and Nevins, J. L.: Nitrogen dynamics during the
Arabian Sea northeast monsoon, Deep-Sea Res. Pt. II, 46, 1623–1664, 1999.
McLaughlin, F. A., Carmack, E. C., Jackson, J. M., Ingram, R. G., and Allen,
S. E.: Identification, characterization, and change of the near-surface
temperature maximum in the Canada Basin, 1993–2008, Doctoral dissertation,
University of British Columbia, 2010.
Niebauer, H. J., Alexander, V., and Henrichs, S.: Physical and biological
oceanographic interaction in the spring bloom at the Bering Sea marginal ice
edge zone, J. Geophys. Res.-Oceans, 95, 22229–22241, 1990.
Overland, J. E. and Wang, M.: When will the summer Arctic be nearly sea ice
free?, Geophys. Res. Lett., 40, 2097–2101, 2013.
Pabi, S., van Dijken, G., and Arrigo, K. R.: Primary production in the Arctic
Ocean, 1998–2006, J. Geophys. Res., 113, C08005, https://doi.org/10.1029/2007JC004578,
2008.
Parkinson, C. L., Cavalieri, D. J., Gloersen, P., Zwally, J. H., and Comiso,
J. C.: Arctic sea ice extents, areas, and trends, 1978–1996, J. Geophys.
Res., 104, 20837–20856, 1999.
Peterson, B. J., Holmes, R. M., McClelland, J. W., Vörösmarty, C. J.,
Lammers, R. B., Shiklomanov, A. I., Shiklomanov, I. A., and Rahmstorf, S.:
Increasing river discharge to the Arctic Ocean, Science, 298, 2171–2173,
2002.
Platt, T., Harrison, W. G., Irwin, B., Horne, E. P., and Gallegos, C. L.:
Photosynthesis and photo adaptation of marine phytoplankton in the Arctic,
Deep-Sea Res. Pt. I, 29, 1159–1170, 1982.
Quadfasel, D.: Oceanography: The Atlantic heat conveyor slows, Nature, 438,
565–566, 2005.
Rachold, V., Grigoriev, M. N., Are, F. E., Solomon, S., Reimnitz, E.,
Kassens, H., and Antonow, M.: Coastal erosion vs. riverine sediment discharge
in the Arctic shelf seas, Int. J. Earth. Sci., 89, 450–460, 2000.
Redfield, A. C.: The influence of organisms on the composition of seawater,
The Sea, 2, 26–77, 1963.
Sakshaug, E.: Primary and Secondary Production in the Arctic Seas, in: The
Organic Carbon Cycle in the Arctic Ocean, edited by: Stein, R. and MacDonald,
R. W., Springer, Berlin, Heidelberg, 2004.
Sakshaug, E. and Holm-Hansen, O.: Factors governing pelagic production in
polar oceans, in: Marine phytoplankton and productivity, 1–18, Springer,
Berlin, Heidelberg, 1984.
Semiletov, I., Dudarev, O., Luchin, V., Charkin, A., Shin, K. H., and Tanaka,
N.: The East Siberian Sea as a transition zone between Pacific-derived waters
and Arctic shelf waters, Geophys. Res. Lett., 32, L10614, https://doi.org/10.1029/2005GL022490, 2005.
Shiklomanov, I. A., Shiklomanov, A. I., Lammers, R. B., Peterson, B. J., and
Vorosmarty, C. J.: The dynamics of river water inflow to the Arctic Ocean,
in: The freshwater budget of the Arctic Ocean (281–296), Springer,
Dordrecht, 2000.
Shuter, B. G.: Size dependence of phophorus and nitrogen subsistence quotas
in unicellular microrganisms, Limnol. Oceanogr., 23, 1248–1255, 1978.
Slagstad, D., Ellingsen, I. H., and Wassmann, P.: Evaluating primary and
secondary production in an Arctic Ocean void of summer sea ice: an
experimental simulation approach, Prog. Oceanogr., 90, 117–131, 2011.
Slawyk, G., Collos, Y., and Auclair, J. C.: The use of the 13C and
15N isotopes for the simultaneous measurement of carbon and
nitrogen turnover rates in marine phytoplankton, Limnol. Oceanogr., 22,
925–932, 1977.
Son, S. H., Campbell, J., Dowell, M., Yoo, S., and Noh, J.: Primary
production in the Yellow Sea determined by ocean color remote sensing, Mar.
Ecol.-Prog. Ser., 303, 91–103, 2005.
Steinacher, M., Joos, F., Frölicher, T. L., Bopp, L., Cadule, P., Cocco,
V., Doney, S. C., Gehlen, M., Lindsay, K., Moore, J. K., Schneider, B., and
Segschneider, J.: Projected 21st century decrease in marine productivity: a
multi-model analysis, Biogeosciences, 7, 979–1005,
https://doi.org/10.5194/bg-7-979-2010, 2010.
Stroeve, J., Holland, M. M., Meier, W., Stroeve, J, Holland, M. M., Meier, W., Scambos, T., and Serreze, M.: Arctic sea ice decline: faster than forecast, Geophys. Res.
Lett., 34, L09501, https://doi.org/10.1029/2007GL029703, 2008.
Subba Rao, D. V. and Platt, T.: Primary production of Arctic waters, Polar
Biol., 3, 191–210, 1984.
Talling, J. F.: The phytoplankton population as a compound photosynthetic
system, New Phytol., 56, 133–149, 1957.
Thomas, M. K., Kremer, C. T., Klausmeier, C. A., and Litchman, E.: A global
pattern of thermal adaptation in marine phytoplankton, Science, 338,
1085–1088, 2012.
Tremblay, J. E. and Gagnon, G.: The effects of irradiance and nutrient supply
on the productivity of Arctic waters: a perspective on climate change, in:
Influence of climate change on the changing Arctic and sub-Arctic conditions.
Proceedings of the NATO advanced research workshop, edited by: Nihoul, J. C.
J. and Kostianoy, A. G., Liège, May 2008, Springer, Dordrecht, 73–94,
2009.
Tremblay, J. É., Legendre, L., Klein, B., and Therriault, C.:
Size-differential uptake of nitrogen and carbon in a marginal sea (Gulf of
St. Lawrance, Canada): Significance of diel periodicity and urea uptake,
Deep-Sea Res. Pt. II, 47, 489–518, 2000.
Tremblay, J. É., Gratton, Y., Carmack, E. C., Payne, C. D., and Price, N.
M.: Impact of the large-scale Arctic circulation and the North Water Polynya
on nutrient inventories in Baffin Bay, J. Geophys. Res.-Oceans, 107, 26–31,
2002.
Vancoppenolle, M., Meiners, K. M., Michel, C., Bopp, L., Brabant, F., Carnat,
G., Delille, B., Lannuzel, D., Madec, G., Moreau, S., and Tison, J. L.: Role
of sea ice in global biogeochemical cycles: emerging views and challenges,
Quaternary Sci. Rev., 79, 207–230, 2013.
Vavrus, S. J., Holland, M. M., Jahn, A., Bailey, D. A., and Blazey, B. A.:
Twenty-first-century Arctic climate change in CCSM4, J. Climate, 25,
2696–2710, 2012.
Vedernikov, V. I., Demidov, A. B., and Sudbin, A. I.: Primary production and
chlorophyll in the Kara Sea in September 1993, Okeanologiya, 34, 693–703,
1994.
Walsh, J. J.: Arctic carbon sinks: present and future, Global. Biogeochem.
Cy., 3, 393–411, https://doi.org/10.1029/GB003i004p00393, 1989.
Wassmann, P., Duarte, C. M., Agusti, S., and Sejr, M. K.: Footprints of
climate change in the Arctic marine ecosystem, Glob. Change Biol., 17,
1235–1249, 2011.
Whitledge, T. E., Malloy, S. C., Patton, C. J., and Wirick, C. D.: Automated
nutrient analyses in seawater (No. BNL-51398), Brookhaven National Lab.,
Upton, NY, USA, 1981.
Yun, M. S., Chung, K. H., Zimmermann, S., Zhao, J., Joo, H. M., and Lee, S.
H.: Phytoplankton productivity and its response to higher light levels in the
Canada Basin, Polar Biol., 35, 257–268, 2012.
Yun, M. S., Kim, B. K., Joo, H. T., Yang, E. J., Nishino, S., Chung, K. H.,
Kang, S., and Lee, S. H.: Regional productivity of phytoplankton in the
Western Arctic Ocean during summer in 2010, Deep-Sea Res. Pt. II, 120,
61–71, 2015.
Biogeosciences
An interactive open-access journal of the European Geosciences Union
