Effects of ocean acidification on trace element accumulation in the early-life stages of squid Loligo vulgaris

Article English OPEN
Lacoue-Labarthe, T. ; Reveillac, E. ; Oberhaensli, F. ; Teyssie, J. L. ; Jeffree, R. ; Gattuso, J. P. (2011)
  • Publisher: ELSEVIER SCIENCE BV
  • Journal: AQUATIC TOXICOLOGY, volume 105, issue 1-2, pages 166-176 (issn: 0166-445X)
  • Related identifiers: doi: 10.1016/j.aquatox.2011.05.021
  • Subject: [ SDV.TOX.ECO ] Life Sciences [q-bio]/Toxicology/Ecotoxicology | paralarvae | cephalopod | CO2 | metal | embryo | eggshell
    mesheuropmc: respiratory system | respiratory tract diseases | inorganic chemicals | circulatory and respiratory physiology

International audience; The anthropogenic release of carbon dioxide (CO2) into the atmosphere leads to an increase in the CO2 partial pressure (pCO2) in the ocean, which may reach 950 µatm by the end of the 21st century. The resulting hypercapnia (high pCO2) and decreasing pH ("ocean acidification") are expected to have appreciable effects on water-breathing organisms, especially on their early-life stages. For organisms like squid that lay their eggs in coastal areas where the embryo and then paralarva are also exposed to metal contamination, there is a need for information on how ocean acidification may influence trace element bioaccumulation during their development. In this study, we investigated the effects of enhanced levels of pCO2 (380, 850 and 1500 µatm corresponding to pHT of 8.1, 7.85 and 7.60) on the accumulation of dissolved 110mAg, 109Cd, 57Co, 203Hg, 54Mn and 65Zn radiotracers in the whole egg strand and in the different compartments of the egg of Loligo vulgaris during the embryonic development and also in hatchlings during their first days of paralarval life. Retention properties of the eggshell for 110mAg, 203Hg and 65Zn were affected by the pCO2 treatments. In the embryo, increasing seawater pCO2 enhanced the uptake of both 110mAg and 65Zn while 203Hg showed a minimum concentration factor (CF) at the intermediate pCO2. 65Zn incorporation in statoliths also increased with increasing pCO2. Conversely, uptake of 109Cd and 54Mn in the embryo decreased as a function of increasing pCO2. Only the accumulation of 57Co in embryos was not affected by increasing pCO2. In paralarvae, the CF of 110mAg increased with increasing pCO2, whereas the 57Co CF was reduced at the highest pCO2 and 203Hg showed a maximal uptake rate at the intermediate pCO2. 54Mn and 65Zn accumulation in paralarvae were not significantly modified by hypercapnic conditions. Our results suggest a combined effect of pH on the adsorption and protective properties of the eggshell and of hypercapnia on the metabolism of embryo and paralarvae, both causing changes to the accumulation of metals in the tissues of L. vulgaris.
  • References (69)
    69 references, page 1 of 7

    Addink, A.D.F., 1971. Carbonic anhydrase of Sepia officinalis L. Comp. Biochem. Physiol. 38B, 707- 721.

    Arkhipkin, A.I., Laptikhovsky, V.V., 2010. Convergence in life-history traits in migratory deep-water squid and fish. ICES J. Mar. Sci. 67, 1444-1451.

    Arkhipkin, A.I., Campana, S.E., Fitzgerals, J., Thorrold, S.R. 2004. Spatial and temporal variation in the elemental signatures of statoliths from the Patagonian longfin squid (Loligo gahi). Can. J. Fish. Aquat. Sci. 61, 1212-1224.

    Barbieri, E., Barry, K., Child, A., Wainwright, N., 1997. Antimicrobial activity in the microbial community of the accessory nidamental gland and egg cases of Loligo pealei (Cephalopoda: Loliginidae). Biol. Bull. 193, 275-276.

    Bianchini, A., Playle, R.C., Wood, C.M., Walsh, P.J., 2005. Mechanism of acute silver toxicity in marine invertebrates. Aquat. Toxicol. 72, 67-82.

    Bibby, R., Widdicombe, S., Parry, H.E., Spicer, J.I., Pipe, R.K., 2008. Effects of ocean acidification on the immune response of the blue mussel Mytilus edulis. Aquat. Biol. 2, 67-74.

    Boletzky, S.V., 1986. Encapsulation of cephalopod embryos: a search for functional correlations. Am. Malacol. Bull. 4, 217-227.

    Bridges, C.R., 1994. Bohr and Root effects in cephalopods. In: Pörtner, H.-O., O'Dor, R.K., Macmillan, D.L. (Eds.), Physiology of cephalopod molluscs: lifestyle and performance adaptations. Gordon and Breach Science Publishers, Basel, Switzerland, pp. 121-130.

    Bruland, K. D., 1983. Trace elements in seawater, edited by: Riley, J. P. and Chester, R., Chemical oceanography, 8. Academic Press, London, 157-201.

    Bustamante, P., Teyssié, J.-L., Danis, B., Fowler, S.W., Miramand, P., Cotret, O., Warnau, M., 2004. Uptake, transfer and distribution of silver and cobalt in tissues of the common cuttlefish Sepia officinalis at different stages of its life cycle. Mar. Ecol. Prog. Ser. 269, 185-195.

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