<?xml version="1.0" encoding="utf-8" standalone="no"?>
<!DOCTYPE article SYSTEM "http://www.biogeosciences.net/inc/bg/copernicus.dtd">
<article language="en">
	<journal>
		<journal_title>Biogeosciences</journal_title>
		<journal_url>www.biogeosciences.net</journal_url>
		<issn>1726-4170</issn>
		<eissn>1726-4189</eissn>
		<volume_number>6</volume_number>
		<issue_number>11</issue_number>
		<publication_year>2009</publication_year>
	</journal>
	<doi>10.5194/bg-6-2561-2009</doi>
	<article_url>http://www.biogeosciences.net/6/2561/2009/</article_url>
	<abstract_html>http://www.biogeosciences.net/6/2561/2009/bg-6-2561-2009.html</abstract_html>
	<fulltext_pdf>http://www.biogeosciences.net/6/2561/2009/bg-6-2561-2009.pdf</fulltext_pdf>
	<start_page>2561</start_page>
	<end_page>2573</end_page>
	<publication_date>2009-11-16</publication_date>
	<article_title content_type="html">Effects of increased &lt;i&gt;p&lt;/i&gt;CO&lt;sub&gt;2&lt;/sub&gt; and temperature on trace element (Ag, Cd and Zn) bioaccumulation in the eggs of the common cuttlefish, &lt;i&gt;Sepia officinalis&lt;/i&gt;</article_title>
	<authors>
		<author numeration="1" affiliations="1,2,4">
			<name>T. Lacoue-Labarthe</name>
			<email>tlacouel@gmail.com</email>
		</author>
		<author numeration="2" affiliations="1">
			<name>S. Martin</name>
		</author>
		<author numeration="3" affiliations="2">
			<name>F. Oberhänsli</name>
		</author>
		<author numeration="4" affiliations="1">
			<name>J.-L. Teyssié</name>
		</author>
		<author numeration="5" affiliations="3">
			<name>S. Markich</name>
		</author>
		<author numeration="6" affiliations="1">
			<name>R. Jeffree</name>
		</author>
		<author numeration="7" affiliations="2">
			<name>P. Bustamante</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Littoral Environnement et Sociétés (LIENSs), UMR 6250, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, 17042 La Rochelle Cedex 01, France</affiliation>
		<affiliation numeration="2" content_type="html">International Atomic Energy Agency – Marine Environment Laboratories, 4 Quai Antoine Ier, MC 98 000 Principality of Monaco</affiliation>
		<affiliation numeration="3" content_type="html">Aquatic Solutions International, Level 1, 467 Miller St, Cammeray, NSW 2062, Australia</affiliation>
		<affiliation numeration="4" content_type="html">now at: LOV, UMR 7093 CNRS, BP28, 06234, Villefranche-sur-mer Cedex, France</affiliation>
	</affiliations>
	<abstract content_type="html">Cephalopods play a key role in many marine trophic networks and constitute
alternative fisheries resources, especially given the ongoing decline in
finfish stocks. Along the European coast, the eggs of the cuttlefish &lt;i&gt;Sepia officinalis&lt;/i&gt; are
characterized by an increasing permeability of the eggshell during
development, which leads to selective accumulation of essential and
non-essential elements in the embryo. Temperature and pH are two critical
factors that affect the metabolism of marine organisms in the coastal
shallow waters. In this study, we investigated the effects of pH and
temperature through a crossed (3&amp;times;2; pH 8.1 (&lt;i&gt;p&lt;/i&gt;CO&lt;sub&gt;2&lt;/sub&gt;, 400 ppm), 7.85
(900 ppm) and 7.6 (1400 ppm) at 16 and 19&amp;deg;C, respectively) laboratory
experiment. Seawater pH showed a strong effect on the egg weight and
non-significant impact on the weight of hatchlings at the end of development
implying an egg swelling process and embryo growth disturbances. The lower
the seawater pH, the more &lt;sup&gt;110 m&lt;/sup&gt;Ag was accumulated in the tissues of
hatchlings. The &lt;sup&gt;109&lt;/sup&gt;Cd concentration factor (CF) decreased with
decreasing pH and &lt;sup&gt;65&lt;/sup&gt;Zn CF reached maximal values pH 7.85, independently
of temperature. Our results suggest that pH and temperature affected both
the permeability properties of the eggshell and embryonic metabolism. To the
best of our knowledge, this is one of the first studies on the consequences
of ocean acidification and ocean warming on metal uptake in marine
organisms, and our results indicate the need to further evaluate the likely
ecotoxicological impact of the global change on the early-life stages of the
cuttlefish.</abstract>
	<references>
		<reference numeration="1" content_type="text"> % vor jede Referenz Barbieri, E., Barry, K., Child, A., and Wainwright, N.: Antimicrobial activity in the microbial community of the accessory nidamental gland and egg cases of \textitLoligo \textitpealei (Cephalopoda: Loliginidae), Biol. Bull., 193, 275–276, 1997. </reference>
		<reference numeration="2" content_type="text"> Bell, R. A. and Kramer, J. R.: Structural chemistry and geochemistry of silver-sulfur compounds: critical review, Environ. Toxicol. Chem., 18, 9–22, 1999. </reference>
		<reference numeration="3" content_type="text"> Bloodgood, R. A.: The squid accessory nidamental gland: ultrastructure and association with bacteria, Tissue Cell, 9, 197–208, 1977. </reference>
		<reference numeration="4" content_type="text"> Boletzky, S. V.: The &quot;larvae&quot; of Cephalopoda: A Review, Thalassia Jugoslavica, 10, 45–76, 1974. </reference>
		<reference numeration="5" content_type="text"> Boletzky, S. V.: \textitSepia \textitofficinalis, in: Cephalopod life cycle, edited by: Boyle, P. R., Academic Press, London, 31–52, 1983. </reference>
		<reference numeration="6" content_type="text"> Boletzky, S. V.: Encapsulation of cephalopod embryos: a search for functional correlations, Am. Malacol. Bull., 4, 217–227, 1986. </reference>
		<reference numeration="7" content_type="text"> Boletzky, S. V.: Cephalopod eggs and egg masses, Oceanography and Marine Biology: Annual Review, 36, 341–371, 1998. </reference>
		<reference numeration="8" content_type="text"> Boucaud-Camou, E. and Boismery, J.: The migrations of the cuttlefish (\textitSepia officinalis L) in the English Channel, in: The Cuttlefish, edited by: Boucaud-Camou, E., Centre de publication de l&apos;Université de Caen, Caen, 179–189, 1991. </reference>
		<reference numeration="9" content_type="text">Bouchaud, O. and Daguzan, J.: Etude du developpement de l&apos;oeuf de \textitSepia \textitofficinalis L. (Céphalopode, Sepiidae) en conditions expérimentales, Haliotis, 19, 189–200, 1989. </reference>
		<reference numeration="10" content_type="text"> Boutier, B., Chiffoleau, J. F., Gonzales, J. L., Lazure, P., Auger, D., and Truquet, I.: Influence of Gironde estuary outputs on cadmium concentrations in the coastal waters: consequences on the Marennes-Oléron bay (France), Oceanol. Acta, 23, 745–757, 2000. </reference>
		<reference numeration="11" content_type="text"> Bridges, C. C. and Zalups, R. K.: Molecular and ionic mimicry and the transport of toxic metals, Toxicol. Appl. Pharmacol., 204, 274–308, 2005. </reference>
		<reference numeration="12" content_type="text"> Bridges, C. R.: Bohr and Root effects in cephalopods, in: Physiology of cephalopod molluscs: lifestyle and performance adaptations, edited by: Pörtner, H. O., O&apos;Dor, R. K., and Macmillan, D. L., Gordon and Breach Science Publishers, Basel, Switzerland, 121–130, 1994. </reference>
		<reference numeration="13" content_type="text"> Brown, P. L.,~Haworth, A.,~Sharland, S. M., and~Tweed, C. J.:~HARPHRQ: An Extended Version of the Geochemical Code PHREEQE. NSS/R 188, UK Atomic Energy Authority, Harwell Laboratory, Oxon, 1991. </reference>
		<reference numeration="14" content_type="text"> Bruland, K. D.: Trace elements in seawater, edited by: Riley, J. P. and Chester, R., Chemical oceanography, 8. Academic Press, London, 157–201, 1983 </reference>
		<reference numeration="15" content_type="text"> Bustamante, P., Teyssié, J.-L., Danis, B., Fowler, S. W., Miramand, P., Cotret, O., and Warnau, M.: Uptake, transfer and distribution of silver and cobalt in tissues of the common cuttlefish \textitSepia \textitofficinalis at different stages of its life cycle, Mar. Ecol. Prog. Ser., 269, 185–195, 2004. </reference>
		<reference numeration="16" content_type="text"> Bustamante, P., Teyssié, J.-L., Fowler, S. W., Cotret, O., Danis, B., Miramand, P., and Warnau, M.: Biokinetics of zinc and cadmium accumulation and depuration at differents stages in the life cycle of the cuttlefish \textitSepia \textitofficinalis, Mar. Ecol. Prog. Ser., 231, 167–177, 2002. </reference>
		<reference numeration="17" content_type="text"> Bustamante, P., Teyssié, J.-L., Fowler, S. W., and Warnau, M.: Contrasting bioaccumulation and transport behaviour of two artificial radionuclides ($^241$Am and $^134$Cs) in cuttlefish eggshell, Vie Milieu, 56, 153–156, 2006. </reference>
		<reference numeration="18" content_type="text"> Calabrese, A. and Nelson, D. A.: Inhibition of embryonic development of the hard clam \textitMercenaria \textitmercenaria, by heavy metals, Bull. Environ. Contam. Toxicol., 11, 92–97, 1974. </reference>
		<reference numeration="19" content_type="text"> Caldeira, K. and Wickett, M. E.: Ocean model predictions of chemistry changes from carbon dioxide emissions to the atmosphere and ocean, J. Geophys. Res., 110, C09S04, 1–12, 2005. </reference>
		<reference numeration="20" content_type="text"> Canadell, J. G., Le Quéré, C., Raupach, M. R., Field, C. B., Buitenhuis, E. T., Ciais, P., Conway, T. J., Gillett, N. P., Houghton, R. A., and Marland, G.: Contributions to accelerating atmospheric CO&lt;sub&gt;2&lt;/sub&gt; growth from economic activity, carbon intensity, and efficiency of natural sinks, P. Natl. Acad. Sci. USA, 104, 18866–18870, 2007. </reference>
		<reference numeration="21" content_type="text"> Cronin, E. R. and Seymour, R. S.: Respiration of the eggs of the giant cuttlefish \textitSepia apama, Mar. Biol., 136, 863–870, 2000. </reference>
		<reference numeration="22" content_type="text"> D&apos;Aniello, A., D&apos;Onofrio, G., Pischetola, M., and Denuce, J. M.: Effect of pH, salinity and Ca$^2+$, Mg$^2+$, K$^+$, and SO$_4^2+$ ions on hatching and viability of \textitLoligo \textitvulgaris embryo, Comp. Biochem. Physiol., 94A, 477-481, 1989. </reference>
		<reference numeration="23" content_type="text"> De Leersnyder, M. and Lemaire, J.: Sur la composition minérale du liquide périembryonnaire de l&apos;oeuf de \textitSepia \textitofficinalis L., Cah Biol Mar, 13, 429–431, 1972. </reference>
		<reference numeration="24" content_type="text"> De Wachter, B., Wolf, G., Richard, A., and Decleir, W.: Regulation of respiration during the juvenile development of \textitSepia officinalis (Mollusca: Cephalopoda), Mar. Biol., 97, 365–371, 1988. </reference>
		<reference numeration="25" content_type="text">Dickson, A. G., Sabine, C. L., and Christian, J. R. (Eds.): Guide to best practices for ocean CO&lt;sub&gt;2&lt;/sub&gt; measurements, PICES Special Publication 3, 191~pp., 2007. </reference>
		<reference numeration="26" content_type="text"> Dupont, S. and Thorndyke, M. C.: Impact of CO&lt;sub&gt;2&lt;/sub&gt;-driven ocean acidification on invertebrates early life-history – What we know, what we need to know and what we can do, Biogeosciences Discuss., 6, 3109–3131, 2009. </reference>
		<reference numeration="27" content_type="text"> Fabry, V. J., Seibel, B. A., Feely, R. A., and Orr, J. C.: Impacts of ocean acidification on marine fauna and ecosystem processes, ICES J. Mar. Sci., 65, 414–432, 2008. </reference>
		<reference numeration="28" content_type="text"> Gazeau, F., Quiblier, C., Jansen, J. M., Gattuso, J. P., Middelburg, J. J., and Heip, C. H. R.: Impact of elevated CO&lt;sub&gt;2&lt;/sub&gt; on shellfish calcification, Geophys. Res. Let., 34, L07603, doi:10.1029/2006GL028554, 2007. </reference>
		<reference numeration="29" content_type="text"> Gutowska, M. A., Pörtner, H. O., and Melzner, F.: Growth and calcification in the cephalopod \textitSepia \textitofficinalis under elevated seawater $p$CO&lt;sub&gt;2&lt;/sub&gt;, Mar. Ecol. Prog. Ser., 373, 303–309, 2008. </reference>
		<reference numeration="30" content_type="text"> Gutowska, M. A. and Melzner, F.: Abiotic conditions in cephalopod (\textitSepia \textitofficinalis) eggs: embryonic development at low pH and high $p$CO&lt;sub&gt;2&lt;/sub&gt;, Mar. Biol., 156, 515–519, 2009. </reference>
		<reference numeration="31" content_type="text"> Gomi, F., Yamamoto, M., and Nakazawa, T.: Swelling of egg during development of the cuttlefish, \textitSepiella japonica, Zool. Sci., 3, 641–645, 1986. </reference>
		<reference numeration="32" content_type="text"> Ikeda, Y., Sakurai, Y., and Shimazaki, K.: Fertilizing capacity of squid (\textitTodarodes pacificus) spermatozoa collected from various storage sites, with special reference to the role of gelatinous substance from the oviducal gland in fertilization and embryonic development, Invertebr. Reprod. Dev., 23, 39–44, 1993. </reference>
		<reference numeration="33" content_type="text"> Jeffree, R. A., Warnau, M., Teyssie, J.-L., and Markich, S. J.: Comparison of the bioaccumulation from seawater and depuration of heavy metals and radionuclides in the spotted dogfish \textitScyliorhinus \textitcanicula (Chondrichthys) and the turbot \textitPsetta \textitmaxima (Actinopterygii: Teleostei), Sci. Total Environ., 368, 839–852, 2006. </reference>
		<reference numeration="34" content_type="text"> Kleypas, J. A., Feely, R. A., Fabry, V. J., Langdon, C., Sabine, C. L., and Robbins, L. L.: Impact of ocean acidification on coral reefs and other marine calcifiers: a guide for future research, FL, sponsored by NSF, NOAA, and the US Geological Survey, St. Petersburg, Florida, 2006. </reference>
		<reference numeration="35" content_type="text"> Kurihara, H.: Effects of CO&lt;sub&gt;2&lt;/sub&gt;-driven ocean acidification on the early developmental stages of invertebrates, Mar. Ecol. Prog. Ser., 373, 275–284, 2008. </reference>
		<reference numeration="36" content_type="text"> Lacoue-Labarthe, T., Oberhänsli, F. R., Teyssié, J.-L., Warnau, M., Koueta, N., and Bustamante, P.: Differential bioaccumulation behaviour of Ag and Cd during the early development of the cuttlefish \textitSepia officinalis, Aquat. Toxicol., 86, 437–446, 2008a. </reference>
		<reference numeration="37" content_type="text"> Lacoue-Labarthe, T., Warnau, M., Oberhänsli, F., Teyssié, J.-L., Jeffree, R. A., and Bustamante, P.: First experiments on the maternal transfer of metals in the cuttlefish \textitSepia officinalis, Mar. Pollut. Bull., 57, 826–831, 2008b. </reference>
		<reference numeration="38" content_type="text"> Lacoue-Labarthe, T., Metian, M., Warnau, M., Oberhänsli, F., Rouleau, C., and Bustamante, P.: Biokinetics of Hg and Pb accumulation in the encapsulated egg of the common cuttlefish \textitSepia officinalis: radiotracer experiments, Sci. Total Environ., 407, 6188–6195, 2009a. </reference>
		<reference numeration="39" content_type="text"> Lacoue-Labarthe, T., Warnau, M., Oberhänsli, F., Teyssié, J.-L., and Bustamante, P.: Contrasting biokinetics of accumulation and distribution of Am, Co, Cs, Mn and Zn by the eggs of the common cuttlefish (\textitSepia officinalis) during the whole development time, J. Exp. Mar. Biol. Ecol., doi:10.1016/j.jembe.2009.10.008, in press, 2009b. </reference>
		<reference numeration="40" content_type="text"> Lemaire, J.: Table de développement embryonnaire de \textitSepia \textitofficinalis L. (Mollusque Céphalopode), Bull. Soc. Zool. Fr., 95, 773–782, 1970. </reference>
		<reference numeration="41" content_type="text"> Levitus, S., Antonov, J., and Boyer, T. P.: Warming of the world ocean, 1955-2003, Geophys. Res. Lett., 32, 1–4, 2005. </reference>
		<reference numeration="42" content_type="text"> Melzner, F., Mark, F. C., and Pörtner, H. O.: Role of blood-oxygen transport in thermal tolerance of the cuttlefish, \textitSepia \textitofficinalis, Integrative and Comparative Biology, 47, 645–655, 2007. </reference>
		<reference numeration="43" content_type="text"> Melzner, F., Bock, C., and Pörtner, H. O.: Temperature-dependent oxygen extraction from the ventilatory current and the costs of ventilation in the cephalopod \textitSepia \textitofficinalis, J. Comp. Physiol. B Biochem. Syst. Environ. Physiol., 176, 607–621, 2006. </reference>
		<reference numeration="44" content_type="text"> Metian, M., Warnau, M., Hédouin, L., and Bustamante, P.: Bioaccumulation of essential metals (Co, Mn and Zn) in the king scallop \textitPecten maximus: seawater, food and sediment exposures, Mar. Biol., 156, 2063–2075, 2009. </reference>
		<reference numeration="45" content_type="text"> Michel, P., Boutier, B., and Chiffoleau, J. F.: Net fluxes of dissolved Arsenic, Cadmium, Copper, Zinc, Nitrogen, and Phosphorus from the Gironde estuary (France): seasonal variations and trends, Estuar. Coast. Shelf. Sci., 51, 451–465, 2000. </reference>
		<reference numeration="46" content_type="text"> Miramand, P., Bustamante, P., Bentley, D., and Koueta, N.: Variation of heavy metal concentrations (Ag, Cd, Co, Cu, Fe, Pb, V, and Zn) during the life cycle of the common cuttlefish \textitSepia \textitofficinalis, Sci. Total. Environ., 361, 132–143, 2006. </reference>
		<reference numeration="47" content_type="text"> Orr, J. C., Fabry, V. J., Aumont, O., Bopp, L., Doney, S. C., Feely, R. A., Gnanadesikan, A., Gruber, N., Ishida, A., Joos, F., Key, R. M., Lindsay, K., Maier-Reimer, E., Matear, R., Monfray, P., Mouchet, A., Najjar, R. G., Plattner, G. K., Rodgers, K. B., Sabine, C. L., Sarmiento, J. L., Schlitzer, R., Slater, R. D., Totterdell, I. J., Weirig, M. F., Yamanaka, Y., and Yool, A.: Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms, Nature, 437, 681–686, 2005. </reference>
		<reference numeration="48" content_type="text"> Pörtner, H. O., O&apos;Dor, R. K., and Macmillan, D. L.: Preface, in: Physiology of cephalopod molluscs: lifestyle and performance adaptations, edited by: Pörtner, H. O., O&apos;Dor, R. K., and Macmillan, D. L., Gordon and Breach Science Publishers, Basel, Switzerland, 1994. </reference>
		<reference numeration="49" content_type="text"> Pörtner, H. O., Langenbuch, M., and Reipschläger, A.: Biological impact of elevated ocean CO&lt;sub&gt;2&lt;/sub&gt; concentrations: lessons from animal physiology and earth history, J. Oceanogr., 60, 705–718, 2004. </reference>
		<reference numeration="50" content_type="text"> Pörtner, H. O.: Ecosystem effects of ocean acidification in times of ocean warming: A physiologist&apos;s view, Mar. Ecol. Prog. Ser., 373, 203–217, 2008. </reference>
		<reference numeration="51" content_type="text"> Pörtner, H. O. and Farrell, A. P.: Physiology and climate change, Science, 322, 690–692, 2008. </reference>
		<reference numeration="52" content_type="text">Proyle, A. and Gattuso, J.-P.: Seacarb, an R package to calculate parameters of the seawater carbonate system, online available at: http://www.obsvlfr.fr/~gattuso/seacarb.php, 2003. </reference>
		<reference numeration="53" content_type="text"> Rodriguez y Baena, A. M., Miquel, J. C., Masqué, P., Povinec, P. P., and La Rosa, J.: A single vs. double spike approach to improve the accuracy of $^234$Th measurements in small-volume seawater samples, Mar. Chem., 100, 269–281, 2006. </reference>
		<reference numeration="54" content_type="text"> Rosa, R. and Seibel, B. A.: Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator, P. Natl. Acad. Sci. USA, 105, 20776–20780, 2008. </reference>
		<reference numeration="55" content_type="text"> Roux, N., Chiffoleau, J.-F., and Claisse, D.: L&apos;argent, le cobalt, le nickel et le vanadium dans les mollusques du littoral français, edited by: RNO, Surveillance du milieu marin, travaux du RNO-Edition 2001, IFREMER, Nantes, 11–20, 2001. </reference>
		<reference numeration="56" content_type="text"> Sabine, C. L., Feely, R. A., Gruber, N., Key, R. M., Lee, K., Bullister, J. L., Wanninkhof, R., Wong, C. S., Wallace, D. W. R., Tilbrook, B., Millero, F. J., Peng, T. H., Kozyr, A., Ono, T., and Rios, A. F.: The oceanic sink for anthropogenic CO&lt;sub&gt;2&lt;/sub&gt;, Science, 305, 367–371, 2004. </reference>
		<reference numeration="57" content_type="text"> Solomon, S., Qin, D., Manning, M., et al.: Climate change 2007: the physical science basis. Contribution of working group I to the 4th assessment report of the intergovernmental panel on climate change, Cambridge University Press, Cambridge, 2007. </reference>
		<reference numeration="58" content_type="text"> Temara, A., Warnau, M., Jangoux, M., and Dubois, P.: Factors influencing the concentrations of heavy metals in the asteroid \textitAsterias \textitrubens L. (Echinodermata), Sci. Total Environ., 203, 51–63, 1997. </reference>
		<reference numeration="59" content_type="text"> Vallee, B. L. and Auld, D. S.: Zinc coordination, function and strucuture of zinc enzymes and other proteins, Biochemistry, 29, 5647–5659, 1990. </reference>
		<reference numeration="60" content_type="text"> Warnau, M. and Bustamante, P.: Radiotracer techniques: a unique tool in marine ecotoxicological studies, Environ. Bioindic., 2, 217–218, 2007. </reference>
		<reference numeration="61" content_type="text"> Warnau, M., Teyssié, J.-L., and Fowler, S. W.: Biokinetics of selected heavy metals and radionuclides in the common Mediterranean echinoid \textitParacentrotus \textitlividus: sea water and food exposures, Mar. Ecol. Prog. Ser., 141, 83–94, 1996. </reference>
		<reference numeration="62" content_type="text"> Wedemeyer, G.: Uptake and distribution of Zn$^65$ in the coho salmon egg (\textitOncorhynchus kisutch), Comp. Biochem. Physiol., 26, 271–279, 1968. </reference>
		<reference numeration="63" content_type="text"> Weischer, M. L. and Marthy, H. J.: Chemical and physiological properties of the natural tranquilliser in the cephalopod eggs, Marine and Freshwater Behaviour and Physiology, 9, 131–138, 1983. </reference>
		<reference numeration="64" content_type="text"> Whicker, F. W. and Schultz, V.: Radioecology : nuclear energy and the environment, edited by: Press, C., CRC Press, Boca Raton, FL, 1982. </reference>
		<reference numeration="65" content_type="text"> Widdicombe, S. and Spicer, J. I.: Predicting the impact of ocean acidification on benthic biodiversity: What can animal physiology tell us?, J. Exp. Mar. Biol. Ecol., 366, 187–197, 2008. </reference>
		<reference numeration="66" content_type="text"> Wolf, G., Verheyen, E., Vlaeminck, A., Lemaire, J., and Decleir, W.: Respiration of \textitSepia \textitofficinalis during the embryonic and early juvenile life, Mar Biol 90, 35-39, 1985. </reference>
		<reference numeration="67" content_type="text"> Wood, C. M., Playle, R. C., and Hogstrand, C.: Physiology and modeling of mechanisms of silver uptake and toxicity in fish, Environ. Toxicol. Chem., 18, 71–83, 1999. </reference>
		<reference numeration="68" content_type="text"> Zielinsky, S., Sartoris, F. J., and Pörtner, H. O.: Temperature effects on hemocyanin oxygen binding in an antarctic cephalopod, Biol. Bull., 200, 67–76, 2001. </reference>
	</references>
</article>

