Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France
Oyster mortality was monitored at multiple sites along the French coastline (around 5 500 km) between 1993 and 2005. Mortality data for one- and two-year-old oysters were collected over 10–12 years in 39 oyster culture sites bordering 3 different "seas": the English Channel, Bay of Biscaye...
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ftarchimer:oai:archimer.ifremer.fr:3295 2023-05-15T15:58:54+02:00 Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France Soletchnik, Patrick Ropert, Michel Mazurie, Joseph Fleury, Pierre-gildas Le Coz, Florence 2007-10 application/pdf https://archimer.ifremer.fr/doc/2007/publication-3295.pdf https://doi.org/10.1016/j.aquaculture.2007.02.049 https://archimer.ifremer.fr/doc/00000/3295/ eng eng Elsevier https://archimer.ifremer.fr/doc/2007/publication-3295.pdf doi:10.1016/j.aquaculture.2007.02.049 https://archimer.ifremer.fr/doc/00000/3295/ 2007 Elsevier B.V. All rights reserved info:eu-repo/semantics/openAccess restricted use Aquaculture (0044-8486) (Elsevier), 2007-10 , Vol. 271 , N. 1-4 , P. 384-400 Mortality Environment Crassostrea gigas Pacific oyster text Publication info:eu-repo/semantics/article 2007 ftarchimer https://doi.org/10.1016/j.aquaculture.2007.02.049 2021-09-23T20:15:12Z Oyster mortality was monitored at multiple sites along the French coastline (around 5 500 km) between 1993 and 2005. Mortality data for one- and two-year-old oysters were collected over 10–12 years in 39 oyster culture sites bordering 3 different "seas": the English Channel, Bay of Biscaye and Mediterranean. Combining these data with records from environmental monitoring databases, 11 of these sites had consistent chronological data sets including both environmental data and mortality records. Mortality in one-year-old oysters was clearly summer mortality (49% of their annual mortality) whereas mortality of two-year-olds occurred mostly in spring (51%). Analysis of variance revealed that "coastal area" was the main influence on mortality of one-year-olds (77.5%% of the variance) and that "year studied" was the main influence on mortality of two-year-olds (60.6% of the variance). The highest mortalities occurred in Marennes and in several sites in Brittany for both age groups, and in Veys Bay (Normandy) for two-year-old oysters only. Environmental parameters were then analysed to investigate which of these might influence summer mortality. Principal Component Analyses revealed that environmental factors such as chlorophyll a (food resource indicator) and salinity (watershed effect) influence oyster mortality. Chlorophyll a concentration (10% of the variance), water temperature (7% of the variance) and turbidity (5% of the variance) are the main significant factors for the mortality of one-year-olds, while salinity and chlorophyll a have more effect on the mortality of two-year-old oysters (respectively 5% and 4% of the variance) Article in Journal/Newspaper Crassostrea gigas Pacific oyster Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Pacific Aquaculture 271 1-4 384 400 |
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 |
Mortality Environment Crassostrea gigas Pacific oyster |
spellingShingle |
Mortality Environment Crassostrea gigas Pacific oyster Soletchnik, Patrick Ropert, Michel Mazurie, Joseph Fleury, Pierre-gildas Le Coz, Florence Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France |
topic_facet |
Mortality Environment Crassostrea gigas Pacific oyster |
description |
Oyster mortality was monitored at multiple sites along the French coastline (around 5 500 km) between 1993 and 2005. Mortality data for one- and two-year-old oysters were collected over 10–12 years in 39 oyster culture sites bordering 3 different "seas": the English Channel, Bay of Biscaye and Mediterranean. Combining these data with records from environmental monitoring databases, 11 of these sites had consistent chronological data sets including both environmental data and mortality records. Mortality in one-year-old oysters was clearly summer mortality (49% of their annual mortality) whereas mortality of two-year-olds occurred mostly in spring (51%). Analysis of variance revealed that "coastal area" was the main influence on mortality of one-year-olds (77.5%% of the variance) and that "year studied" was the main influence on mortality of two-year-olds (60.6% of the variance). The highest mortalities occurred in Marennes and in several sites in Brittany for both age groups, and in Veys Bay (Normandy) for two-year-old oysters only. Environmental parameters were then analysed to investigate which of these might influence summer mortality. Principal Component Analyses revealed that environmental factors such as chlorophyll a (food resource indicator) and salinity (watershed effect) influence oyster mortality. Chlorophyll a concentration (10% of the variance), water temperature (7% of the variance) and turbidity (5% of the variance) are the main significant factors for the mortality of one-year-olds, while salinity and chlorophyll a have more effect on the mortality of two-year-old oysters (respectively 5% and 4% of the variance) |
format |
Article in Journal/Newspaper |
author |
Soletchnik, Patrick Ropert, Michel Mazurie, Joseph Fleury, Pierre-gildas Le Coz, Florence |
author_facet |
Soletchnik, Patrick Ropert, Michel Mazurie, Joseph Fleury, Pierre-gildas Le Coz, Florence |
author_sort |
Soletchnik, Patrick |
title |
Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France |
title_short |
Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France |
title_full |
Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France |
title_fullStr |
Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France |
title_full_unstemmed |
Relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of France |
title_sort |
relationships between oyster mortality patterns and environmental data from monitoring databases along the coasts of france |
publisher |
Elsevier |
publishDate |
2007 |
url |
https://archimer.ifremer.fr/doc/2007/publication-3295.pdf https://doi.org/10.1016/j.aquaculture.2007.02.049 https://archimer.ifremer.fr/doc/00000/3295/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Aquaculture (0044-8486) (Elsevier), 2007-10 , Vol. 271 , N. 1-4 , P. 384-400 |
op_relation |
https://archimer.ifremer.fr/doc/2007/publication-3295.pdf doi:10.1016/j.aquaculture.2007.02.049 https://archimer.ifremer.fr/doc/00000/3295/ |
op_rights |
2007 Elsevier B.V. All rights reserved info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.aquaculture.2007.02.049 |
container_title |
Aquaculture |
container_volume |
271 |
container_issue |
1-4 |
container_start_page |
384 |
op_container_end_page |
400 |
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1766394680551931904 |