Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico
Abstract The eastern oyster Crassostrea virginica is a commercially and ecologically important organism found throughout the western North Atlantic and Gulf of Mexico. Morphological differences in shell shape of eastern oysters are known to arise from environmental, genetic, and husbandry‐related fa...
Published in: | Marine and Coastal Fisheries |
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crwiley:10.1002/mcf2.10156 2024-10-06T13:51:10+00:00 Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico Hajovsky, Polly Beseres Pollack, Jennifer Anderson, Joel National Marine Fisheries Service 2021 http://dx.doi.org/10.1002/mcf2.10156 https://onlinelibrary.wiley.com/doi/pdf/10.1002/mcf2.10156 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/mcf2.10156 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/mcf2.10156 en eng Wiley http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ Marine and Coastal Fisheries volume 13, issue 4, page 309-319 ISSN 1942-5120 1942-5120 journal-article 2021 crwiley https://doi.org/10.1002/mcf2.10156 2024-09-11T04:11:25Z Abstract The eastern oyster Crassostrea virginica is a commercially and ecologically important organism found throughout the western North Atlantic and Gulf of Mexico. Morphological differences in shell shape of eastern oysters are known to arise from environmental, genetic, and husbandry‐related factors. Here, live eastern oysters were collected from 17 sites along the U.S. Gulf of Mexico coast from Texas to Florida to examine morphological differences among geographic samples. Six morphological metrics were recorded for each individual, and four different composite ratios commonly used to describe oyster shape (fan, cup, volume ratio, and weight ratio) were calculated. Principal component analysis was used to demonstrate geographic differences in ordinated shape ratios, correlating roughly with eastern (Florida), northern (Alabama, Louisiana, north Texas), and western (south Texas) samples. In Texas, differences in shape were correlated with previously described genetic population boundaries, indicating that populations north versus south of Aransas Bay had different overall shell shapes. On a broader scale, shell shape variation correlated roughly with previously described genetic population boundaries throughout the Gulf of Mexico as well as tide depth (intertidal versus subtidal reefs). Among the various factors that might act as drivers of shell shape, individual variation is important, but population structure and tide height are also significant predictor variables of shape in this species. Article in Journal/Newspaper North Atlantic Wiley Online Library Alabama Marine and Coastal Fisheries 13 4 309 319 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The eastern oyster Crassostrea virginica is a commercially and ecologically important organism found throughout the western North Atlantic and Gulf of Mexico. Morphological differences in shell shape of eastern oysters are known to arise from environmental, genetic, and husbandry‐related factors. Here, live eastern oysters were collected from 17 sites along the U.S. Gulf of Mexico coast from Texas to Florida to examine morphological differences among geographic samples. Six morphological metrics were recorded for each individual, and four different composite ratios commonly used to describe oyster shape (fan, cup, volume ratio, and weight ratio) were calculated. Principal component analysis was used to demonstrate geographic differences in ordinated shape ratios, correlating roughly with eastern (Florida), northern (Alabama, Louisiana, north Texas), and western (south Texas) samples. In Texas, differences in shape were correlated with previously described genetic population boundaries, indicating that populations north versus south of Aransas Bay had different overall shell shapes. On a broader scale, shell shape variation correlated roughly with previously described genetic population boundaries throughout the Gulf of Mexico as well as tide depth (intertidal versus subtidal reefs). Among the various factors that might act as drivers of shell shape, individual variation is important, but population structure and tide height are also significant predictor variables of shape in this species. |
author2 |
National Marine Fisheries Service |
format |
Article in Journal/Newspaper |
author |
Hajovsky, Polly Beseres Pollack, Jennifer Anderson, Joel |
spellingShingle |
Hajovsky, Polly Beseres Pollack, Jennifer Anderson, Joel Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico |
author_facet |
Hajovsky, Polly Beseres Pollack, Jennifer Anderson, Joel |
author_sort |
Hajovsky, Polly |
title |
Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico |
title_short |
Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico |
title_full |
Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico |
title_fullStr |
Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico |
title_full_unstemmed |
Morphological Assessment of the Eastern Oyster Crassostrea virginica throughout the Gulf of Mexico |
title_sort |
morphological assessment of the eastern oyster crassostrea virginica throughout the gulf of mexico |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/mcf2.10156 https://onlinelibrary.wiley.com/doi/pdf/10.1002/mcf2.10156 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/mcf2.10156 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/mcf2.10156 |
geographic |
Alabama |
geographic_facet |
Alabama |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Marine and Coastal Fisheries volume 13, issue 4, page 309-319 ISSN 1942-5120 1942-5120 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/mcf2.10156 |
container_title |
Marine and Coastal Fisheries |
container_volume |
13 |
container_issue |
4 |
container_start_page |
309 |
op_container_end_page |
319 |
_version_ |
1812179358604853248 |