Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change
Globally, over 85% of oyster reefs have been lost, and the combined effects of climate change, ocean acidification, and environmental degradation, including pollution and mangrove overharvesting, could further reduce global oyster fisheries in the coming decades. To understand the level of impact of...
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Online Access: | https://doi.org/10.3390/fishes7040205 http://ecite.utas.edu.au/153674 |
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ftunivtasecite:oai:ecite.utas.edu.au:153674 2023-05-15T17:51:56+02:00 Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change Mahu, E Sanko, S Kamara, A Chuku, EO Effah, E Sohou, Z Zounon, Y Akinjogunla, V Akinnigbagbe, RO Diadhiou, HD Marchant, R 2022 application/pdf https://doi.org/10.3390/fishes7040205 http://ecite.utas.edu.au/153674 en eng MDPIAG http://ecite.utas.edu.au/153674/1/153674 - Climate resilience and adaptation in West African oyster fisheries.pdf http://dx.doi.org/10.3390/fishes7040205 Mahu, E and Sanko, S and Kamara, A and Chuku, EO and Effah, E and Sohou, Z and Zounon, Y and Akinjogunla, V and Akinnigbagbe, RO and Diadhiou, HD and Marchant, R, Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change, Fishes, 7, (4) Article 205. ISSN 2410-3888 (2022) [Refereed Article] http://ecite.utas.edu.au/153674 Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management Refereed Article PeerReviewed 2022 ftunivtasecite https://doi.org/10.3390/fishes7040205 2022-11-28T23:17:13Z Globally, over 85% of oyster reefs have been lost, and the combined effects of climate change, ocean acidification, and environmental degradation, including pollution and mangrove overharvesting, could further reduce global oyster fisheries in the coming decades. To understand the level of impact of climate change on the oyster fishery in West Africa, an expert-based vulnerability assessment to climate change was conducted for the West African mangrove oyster ( Crassostrea tulipa , Lamarck 1819). Using a combination of the exposure of the oyster to climatic stressors (estuarine temperature, salinity, river flow, surface run-off, sea level rise, and estuarine circulation) together with an assessment of sensitivity to these stressors, we estimate the overall vulnerability of C. tulipa to climate change. A very high overall climate vulnerability score of 12 on a scale of 16 was calculated for C. tulipa . While the overall climate exposure score in the West African coastal region remained high, the high sensitivity of C. tulipa to hydrographic conditions of its habitat, in particular salinity, coupled with its sessile and habitat-specific nature, pushed the overall vulnerability to very high. Early life history settlement requirements, adult mobility, and sensitivity to salinity were the three most important biological and sensitivity attributes that determined the vulnerability score. By leaving each of these three sensitivity attributes out of the analysis, the overall vulnerability score was reduced to 9 (i.e., from very high to high). A negative directional effect of climate change, coupled with a low potential for change in distribution, threatens the C. tulipa fishery in a long-term adverse climate scenario. We recommend management efforts that incorporate climate resilience and adaptation practices to prioritize recruitment success, as well as the development of breeding lines with climate-resilient traits. Article in Journal/Newspaper Ocean acidification eCite UTAS (University of Tasmania) Lamarck ENVELOPE(140.027,140.027,-66.666,-66.666) Fishes 7 4 205 |
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Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management |
spellingShingle |
Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management Mahu, E Sanko, S Kamara, A Chuku, EO Effah, E Sohou, Z Zounon, Y Akinjogunla, V Akinnigbagbe, RO Diadhiou, HD Marchant, R Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change |
topic_facet |
Agricultural Veterinary and Food Sciences Fisheries sciences Fisheries management |
description |
Globally, over 85% of oyster reefs have been lost, and the combined effects of climate change, ocean acidification, and environmental degradation, including pollution and mangrove overharvesting, could further reduce global oyster fisheries in the coming decades. To understand the level of impact of climate change on the oyster fishery in West Africa, an expert-based vulnerability assessment to climate change was conducted for the West African mangrove oyster ( Crassostrea tulipa , Lamarck 1819). Using a combination of the exposure of the oyster to climatic stressors (estuarine temperature, salinity, river flow, surface run-off, sea level rise, and estuarine circulation) together with an assessment of sensitivity to these stressors, we estimate the overall vulnerability of C. tulipa to climate change. A very high overall climate vulnerability score of 12 on a scale of 16 was calculated for C. tulipa . While the overall climate exposure score in the West African coastal region remained high, the high sensitivity of C. tulipa to hydrographic conditions of its habitat, in particular salinity, coupled with its sessile and habitat-specific nature, pushed the overall vulnerability to very high. Early life history settlement requirements, adult mobility, and sensitivity to salinity were the three most important biological and sensitivity attributes that determined the vulnerability score. By leaving each of these three sensitivity attributes out of the analysis, the overall vulnerability score was reduced to 9 (i.e., from very high to high). A negative directional effect of climate change, coupled with a low potential for change in distribution, threatens the C. tulipa fishery in a long-term adverse climate scenario. We recommend management efforts that incorporate climate resilience and adaptation practices to prioritize recruitment success, as well as the development of breeding lines with climate-resilient traits. |
format |
Article in Journal/Newspaper |
author |
Mahu, E Sanko, S Kamara, A Chuku, EO Effah, E Sohou, Z Zounon, Y Akinjogunla, V Akinnigbagbe, RO Diadhiou, HD Marchant, R |
author_facet |
Mahu, E Sanko, S Kamara, A Chuku, EO Effah, E Sohou, Z Zounon, Y Akinjogunla, V Akinnigbagbe, RO Diadhiou, HD Marchant, R |
author_sort |
Mahu, E |
title |
Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change |
title_short |
Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change |
title_full |
Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change |
title_fullStr |
Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change |
title_full_unstemmed |
Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change |
title_sort |
climate resilience and adaptation in west african oyster fisheries: an expert-based assessment of the vulnerability of the oyster crassostrea tulipa to climate change |
publisher |
MDPIAG |
publishDate |
2022 |
url |
https://doi.org/10.3390/fishes7040205 http://ecite.utas.edu.au/153674 |
long_lat |
ENVELOPE(140.027,140.027,-66.666,-66.666) |
geographic |
Lamarck |
geographic_facet |
Lamarck |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://ecite.utas.edu.au/153674/1/153674 - Climate resilience and adaptation in West African oyster fisheries.pdf http://dx.doi.org/10.3390/fishes7040205 Mahu, E and Sanko, S and Kamara, A and Chuku, EO and Effah, E and Sohou, Z and Zounon, Y and Akinjogunla, V and Akinnigbagbe, RO and Diadhiou, HD and Marchant, R, Climate resilience and adaptation in West African oyster fisheries: an expert-based assessment of the vulnerability of the oyster Crassostrea tulipa to climate change, Fishes, 7, (4) Article 205. ISSN 2410-3888 (2022) [Refereed Article] http://ecite.utas.edu.au/153674 |
op_doi |
https://doi.org/10.3390/fishes7040205 |
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Fishes |
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7 |
container_issue |
4 |
container_start_page |
205 |
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1766159232118292480 |