Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients
Ocean acidification threatens many marine organisms, including oysters. Seagrass habitat has been suggested as a potential refuge for oysters because it may ameliorate stressful carbonate chemistry and augment food availability. We conducted an in situ study to investigate whether eelgrass Zostera m...
Published in: | Aquaculture Environment Interactions |
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ftdoajarticles:oai:doaj.org/article:e85d68e92212421c8ac66cc74c87d071 2023-11-12T04:16:17+01:00 Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients B Dumbauld B McIntyre 2023-09-01T00:00:00Z https://doi.org/10.3354/aei00466 https://doaj.org/article/e85d68e92212421c8ac66cc74c87d071 EN eng Inter-Research https://www.int-res.com/abstracts/aei/v15/p287-306/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00466 https://doaj.org/article/e85d68e92212421c8ac66cc74c87d071 Aquaculture Environment Interactions, Vol 15, Pp 287-306 (2023) Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 article 2023 ftdoajarticles https://doi.org/10.3354/aei00466 2023-10-22T00:42:43Z Ocean acidification threatens many marine organisms, including oysters. Seagrass habitat has been suggested as a potential refuge for oysters because it may ameliorate stressful carbonate chemistry and augment food availability. We conducted an in situ study to investigate whether eelgrass Zostera marina habitat affects the growth of juvenile Pacific oysters Crassostrea gigas and influences local carbonate chemistry or food quantity at sites where we expected contrasting conditions in two US west coast estuaries. Juvenile oysters were out-planted in typical intertidal on-bottom (just above sediment) and off-bottom (45 cm above sediment) culture positions and in adjacent eelgrass and unvegetated habitats from June to September 2019. Water quality was measured with sondes for 24 h periods each month, and discrete water samples were collected in conjuncture. Results show that eelgrass habitat did not alter average local carbonate chemistry (pH, pCO2, Ωcalcite), but consistently reduced available food (relative chlorophyll a). Eelgrass habitat had little to no effect on the shell or tissue growth of juvenile oysters but may have influenced their energy allocation; oysters displayed a 16% higher ratio of shell to tissue growth in eelgrass compared to unvegetated habitat when cultured on-bottom. At the seascape scale, average site-level pH was negatively correlated with shell to tissue growth but not with shell growth alone. Overall, these findings suggest that juvenile oysters may display a compensatory response and allocate more energy to shell than tissue growth under stressful conditions like acidic water and/or altered food supply due to reduced immersion or eelgrass presence. Article in Journal/Newspaper Crassostrea gigas Ocean acidification Pacific oyster Directory of Open Access Journals: DOAJ Articles Pacific Aquaculture Environment Interactions 15 287 306 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 |
spellingShingle |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 B Dumbauld B McIntyre Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients |
topic_facet |
Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 |
description |
Ocean acidification threatens many marine organisms, including oysters. Seagrass habitat has been suggested as a potential refuge for oysters because it may ameliorate stressful carbonate chemistry and augment food availability. We conducted an in situ study to investigate whether eelgrass Zostera marina habitat affects the growth of juvenile Pacific oysters Crassostrea gigas and influences local carbonate chemistry or food quantity at sites where we expected contrasting conditions in two US west coast estuaries. Juvenile oysters were out-planted in typical intertidal on-bottom (just above sediment) and off-bottom (45 cm above sediment) culture positions and in adjacent eelgrass and unvegetated habitats from June to September 2019. Water quality was measured with sondes for 24 h periods each month, and discrete water samples were collected in conjuncture. Results show that eelgrass habitat did not alter average local carbonate chemistry (pH, pCO2, Ωcalcite), but consistently reduced available food (relative chlorophyll a). Eelgrass habitat had little to no effect on the shell or tissue growth of juvenile oysters but may have influenced their energy allocation; oysters displayed a 16% higher ratio of shell to tissue growth in eelgrass compared to unvegetated habitat when cultured on-bottom. At the seascape scale, average site-level pH was negatively correlated with shell to tissue growth but not with shell growth alone. Overall, these findings suggest that juvenile oysters may display a compensatory response and allocate more energy to shell than tissue growth under stressful conditions like acidic water and/or altered food supply due to reduced immersion or eelgrass presence. |
format |
Article in Journal/Newspaper |
author |
B Dumbauld B McIntyre |
author_facet |
B Dumbauld B McIntyre |
author_sort |
B Dumbauld |
title |
Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients |
title_short |
Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients |
title_full |
Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients |
title_fullStr |
Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients |
title_full_unstemmed |
Influence of seagrass on juvenile Pacific oyster growth in two US west coast estuaries with different environmental gradients |
title_sort |
influence of seagrass on juvenile pacific oyster growth in two us west coast estuaries with different environmental gradients |
publisher |
Inter-Research |
publishDate |
2023 |
url |
https://doi.org/10.3354/aei00466 https://doaj.org/article/e85d68e92212421c8ac66cc74c87d071 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Ocean acidification Pacific oyster |
genre_facet |
Crassostrea gigas Ocean acidification Pacific oyster |
op_source |
Aquaculture Environment Interactions, Vol 15, Pp 287-306 (2023) |
op_relation |
https://www.int-res.com/abstracts/aei/v15/p287-306/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00466 https://doaj.org/article/e85d68e92212421c8ac66cc74c87d071 |
op_doi |
https://doi.org/10.3354/aei00466 |
container_title |
Aquaculture Environment Interactions |
container_volume |
15 |
container_start_page |
287 |
op_container_end_page |
306 |
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1782333421857538048 |