Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae
The effects of mercury (Hg) concentrations ranging from 0 (control) to 1024 µg 1-1 upon embryogenesis, survival, growth and metamorphosis of Crassostrea gigas (Thunberg) oyster larvae were investigated. Embryogenesis was abnormal in 50 % of the individuals at 11 µg 1-1 . The 48 h LD50 for D·shaped,...
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ftarchimer:oai:archimer.ifremer.fr:14867 2023-05-15T15:57:43+02:00 Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae Beiras, Ricardo His, Edouard 1994-10 application/pdf https://archimer.ifremer.fr/doc/00037/14867/12191.pdf https://doi.org/10.3354/meps113095 https://archimer.ifremer.fr/doc/00037/14867/ eng eng Inter-research https://archimer.ifremer.fr/doc/00037/14867/12191.pdf doi:10.3354/meps113095 https://archimer.ifremer.fr/doc/00037/14867/ 1994 Inter-Research info:eu-repo/semantics/openAccess restricted use Marine Ecology Progress Series (0171-8630) (Inter-research), 1994-10 , Vol. 113 , N. 1-2 , P. 95-103 Mercury Oyster Larva Embryo Bioassay Ecotoxicology text Publication info:eu-repo/semantics/article 1994 ftarchimer https://doi.org/10.3354/meps113095 2021-09-23T20:19:29Z The effects of mercury (Hg) concentrations ranging from 0 (control) to 1024 µg 1-1 upon embryogenesis, survival, growth and metamorphosis of Crassostrea gigas (Thunberg) oyster larvae were investigated. Embryogenesis was abnormal in 50 % of the individuals at 11 µg 1-1 . The 48 h LD50 for D·shaped, umbonate and pediveliger larvae were 33, 115 and 200 µg 1-1 respectively. The increase in LD50 was partially explained by the larval weight increase, although weight-specific tolerance to Hg was higher in smaller larvae. Growth, the most sensitive physiological process studied, was significantly retarded at 4 µg 1-1. The metamorphosis rate was significantly reduced when competent pediveligers were exposed to 64 µg 1-1 for 48 h prior to the addition of the metamorphosis inducer epinephrine. The implications of the present results for monitoring pollution by utilising different bivalve larval stages are discussed. Article in Journal/Newspaper Crassostrea gigas Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Marine Ecology Progress Series 113 95 103 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Mercury Oyster Larva Embryo Bioassay Ecotoxicology |
spellingShingle |
Mercury Oyster Larva Embryo Bioassay Ecotoxicology Beiras, Ricardo His, Edouard Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae |
topic_facet |
Mercury Oyster Larva Embryo Bioassay Ecotoxicology |
description |
The effects of mercury (Hg) concentrations ranging from 0 (control) to 1024 µg 1-1 upon embryogenesis, survival, growth and metamorphosis of Crassostrea gigas (Thunberg) oyster larvae were investigated. Embryogenesis was abnormal in 50 % of the individuals at 11 µg 1-1 . The 48 h LD50 for D·shaped, umbonate and pediveliger larvae were 33, 115 and 200 µg 1-1 respectively. The increase in LD50 was partially explained by the larval weight increase, although weight-specific tolerance to Hg was higher in smaller larvae. Growth, the most sensitive physiological process studied, was significantly retarded at 4 µg 1-1. The metamorphosis rate was significantly reduced when competent pediveligers were exposed to 64 µg 1-1 for 48 h prior to the addition of the metamorphosis inducer epinephrine. The implications of the present results for monitoring pollution by utilising different bivalve larval stages are discussed. |
format |
Article in Journal/Newspaper |
author |
Beiras, Ricardo His, Edouard |
author_facet |
Beiras, Ricardo His, Edouard |
author_sort |
Beiras, Ricardo |
title |
Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae |
title_short |
Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae |
title_full |
Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae |
title_fullStr |
Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae |
title_full_unstemmed |
Effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of Crassostrea gigas oyster larvae |
title_sort |
effects of dissolved mercury on embryogenesis, survival, growth and metamorphosis of crassostrea gigas oyster larvae |
publisher |
Inter-research |
publishDate |
1994 |
url |
https://archimer.ifremer.fr/doc/00037/14867/12191.pdf https://doi.org/10.3354/meps113095 https://archimer.ifremer.fr/doc/00037/14867/ |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Marine Ecology Progress Series (0171-8630) (Inter-research), 1994-10 , Vol. 113 , N. 1-2 , P. 95-103 |
op_relation |
https://archimer.ifremer.fr/doc/00037/14867/12191.pdf doi:10.3354/meps113095 https://archimer.ifremer.fr/doc/00037/14867/ |
op_rights |
1994 Inter-Research info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.3354/meps113095 |
container_title |
Marine Ecology Progress Series |
container_volume |
113 |
container_start_page |
95 |
op_container_end_page |
103 |
_version_ |
1766393408375488512 |