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Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species

Cephalopods play a key role in many marine trophic food webs and also constitute alternative fishery resources in the context of the ongoing decline in finfish stocks. Most coastal cephalopod species of commercial importance migrate into shallow waters during the breeding season to lay their eggs, a...

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Autores principales: Lacoue-Labarthe, Thomas, Villanueva, Roger, Rouleau, Claude, Oberhänsli, François, Teyssié, Jean-Louis, Jeffree, Ross, Bustamante, Paco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3223177/
https://www.ncbi.nlm.nih.gov/pubmed/22132123
http://dx.doi.org/10.1371/journal.pone.0027653
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author Lacoue-Labarthe, Thomas
Villanueva, Roger
Rouleau, Claude
Oberhänsli, François
Teyssié, Jean-Louis
Jeffree, Ross
Bustamante, Paco
author_facet Lacoue-Labarthe, Thomas
Villanueva, Roger
Rouleau, Claude
Oberhänsli, François
Teyssié, Jean-Louis
Jeffree, Ross
Bustamante, Paco
author_sort Lacoue-Labarthe, Thomas
collection PubMed
description Cephalopods play a key role in many marine trophic food webs and also constitute alternative fishery resources in the context of the ongoing decline in finfish stocks. Most coastal cephalopod species of commercial importance migrate into shallow waters during the breeding season to lay their eggs, and are consequently subjected to coastal contamination. Eggs of common cuttlefish Sepia officinalis, European squid Loligo vulgaris, common octopus Octopus vulgaris and the sepiolid Rossia macrosoma were exposed during embryonic development to dissolved (110m)Ag, (109)Cd, (60)Co, (54)Mn and (65)Zn in order to determine their metal accumulation efficiencies and distribution among different egg compartments. Cuttlefish eggs, in which hard shells enclose the embryos, showed the lowest concentration factor (CF) values despite a longer duration of exposure. In contrast, octopus eggs, which are only protected by the chorionic membrane, accumulated the most metal. Uptake appears to be linked to the selective retention properties of the egg envelopes with respect to each element. The study also demonstrated that the octopus embryo accumulated (110m)Ag directly from the dissolved phase and also indirectly through assimilation of the contaminated yolk. These results raise questions regarding the potential contrasting vulnerability of early life stages of cephalopods to the metallic contamination of coastal waters.
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spelling pubmed-32231772011-11-30 Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species Lacoue-Labarthe, Thomas Villanueva, Roger Rouleau, Claude Oberhänsli, François Teyssié, Jean-Louis Jeffree, Ross Bustamante, Paco PLoS One Research Article Cephalopods play a key role in many marine trophic food webs and also constitute alternative fishery resources in the context of the ongoing decline in finfish stocks. Most coastal cephalopod species of commercial importance migrate into shallow waters during the breeding season to lay their eggs, and are consequently subjected to coastal contamination. Eggs of common cuttlefish Sepia officinalis, European squid Loligo vulgaris, common octopus Octopus vulgaris and the sepiolid Rossia macrosoma were exposed during embryonic development to dissolved (110m)Ag, (109)Cd, (60)Co, (54)Mn and (65)Zn in order to determine their metal accumulation efficiencies and distribution among different egg compartments. Cuttlefish eggs, in which hard shells enclose the embryos, showed the lowest concentration factor (CF) values despite a longer duration of exposure. In contrast, octopus eggs, which are only protected by the chorionic membrane, accumulated the most metal. Uptake appears to be linked to the selective retention properties of the egg envelopes with respect to each element. The study also demonstrated that the octopus embryo accumulated (110m)Ag directly from the dissolved phase and also indirectly through assimilation of the contaminated yolk. These results raise questions regarding the potential contrasting vulnerability of early life stages of cephalopods to the metallic contamination of coastal waters. Public Library of Science 2011-11-23 /pmc/articles/PMC3223177/ /pubmed/22132123 http://dx.doi.org/10.1371/journal.pone.0027653 Text en Lacoue-Labarthe et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Lacoue-Labarthe, Thomas
Villanueva, Roger
Rouleau, Claude
Oberhänsli, François
Teyssié, Jean-Louis
Jeffree, Ross
Bustamante, Paco
Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species
title Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species
title_full Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species
title_fullStr Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species
title_full_unstemmed Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species
title_short Radioisotopes Demonstrate the Contrasting Bioaccumulation Capacities of Heavy Metals in Embryonic Stages of Cephalopod Species
title_sort radioisotopes demonstrate the contrasting bioaccumulation capacities of heavy metals in embryonic stages of cephalopod species
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3223177/
https://www.ncbi.nlm.nih.gov/pubmed/22132123
http://dx.doi.org/10.1371/journal.pone.0027653
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