Crassostrea virginica dredge efficiency in Texas estuaries
Quantifying and comparing stocks of oysters (Crassostrea virginica) within and among estuaries across the Gulf of Mexico is difficult because the sampling equipment used is either inconsistent among studies, or inefficient. In Texas, USA, stock assessments of oyster populations are made using an oys...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Cambridge University Press
2020-01-01
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| Series: | Experimental Results |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S2516712X19000029/type/journal_article |
| _version_ | 1811156275548913664 |
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| author | Jennifer Beseres Pollack Terence A. Palmer Arne Linlokken |
| author_facet | Jennifer Beseres Pollack Terence A. Palmer Arne Linlokken |
| author_sort | Jennifer Beseres Pollack |
| collection | DOAJ |
| description | Quantifying and comparing stocks of oysters (Crassostrea virginica) within and among estuaries across the Gulf of Mexico is difficult because the sampling equipment used is either inconsistent among studies, or inefficient. In Texas, USA, stock assessments of oyster populations are made using an oyster dredge, which is an inefficient sampling tool. We compared sampling densities estimated by oyster dredges with more accurate estimates taken by diver-quadrat samples to determine a dredge efficiency rate. Our calculated efficiency rate (0.125) was negatively affected by the number of dead oysters, and the number and volume of total oysters in an area, but not affected by sediment grain size, water quality, and other oyster metrics. The dredge efficiency rate calculated in this study can be applied to past and future dredge-collected oyster quantity data to provide more realistic estimates of oyster densities and allow more accurate stock assessments and comparisons among studies and regions. |
| first_indexed | 2024-04-10T04:48:52Z |
| format | Article |
| id | doaj.art-eef606c6327343d48e1d20f518eb4e21 |
| institution | Directory Open Access Journal |
| issn | 2516-712X |
| language | English |
| last_indexed | 2024-04-10T04:48:52Z |
| publishDate | 2020-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Experimental Results |
| spelling | doaj.art-eef606c6327343d48e1d20f518eb4e212023-03-09T12:34:21ZengCambridge University PressExperimental Results2516-712X2020-01-01110.1017/exp.2019.2Crassostrea virginica dredge efficiency in Texas estuariesJennifer Beseres Pollack0https://orcid.org/0000-0002-2995-4006Terence A. Palmer1https://orcid.org/0000-0001-6602-9760Arne Linlokken2Harte Research Institute for Gulf of Mexico Studies, Texas A&M University – Corpus Christi, 6300 Ocean Drive, Unit 5869, Corpus Christi, TX78412-5869, USA.Harte Research Institute for Gulf of Mexico Studies, Texas A&M University – Corpus Christi, 6300 Ocean Drive, Unit 5869, Corpus Christi, TX78412-5869, USA.Inland Norway University of Applied Sciences , Faculty of Applied Ecology, Agricultural Sciences and Biotechnology, Elverum, Norway, 2418Quantifying and comparing stocks of oysters (Crassostrea virginica) within and among estuaries across the Gulf of Mexico is difficult because the sampling equipment used is either inconsistent among studies, or inefficient. In Texas, USA, stock assessments of oyster populations are made using an oyster dredge, which is an inefficient sampling tool. We compared sampling densities estimated by oyster dredges with more accurate estimates taken by diver-quadrat samples to determine a dredge efficiency rate. Our calculated efficiency rate (0.125) was negatively affected by the number of dead oysters, and the number and volume of total oysters in an area, but not affected by sediment grain size, water quality, and other oyster metrics. The dredge efficiency rate calculated in this study can be applied to past and future dredge-collected oyster quantity data to provide more realistic estimates of oyster densities and allow more accurate stock assessments and comparisons among studies and regions.https://www.cambridge.org/core/product/identifier/S2516712X19000029/type/journal_articleEastern oysterGulf of Mexicogear efficiencystock assessment |
| spellingShingle | Jennifer Beseres Pollack Terence A. Palmer Arne Linlokken Crassostrea virginica dredge efficiency in Texas estuaries Experimental Results Eastern oyster Gulf of Mexico gear efficiency stock assessment |
| title | Crassostrea virginica dredge efficiency in Texas estuaries |
| title_full | Crassostrea virginica dredge efficiency in Texas estuaries |
| title_fullStr | Crassostrea virginica dredge efficiency in Texas estuaries |
| title_full_unstemmed | Crassostrea virginica dredge efficiency in Texas estuaries |
| title_short | Crassostrea virginica dredge efficiency in Texas estuaries |
| title_sort | crassostrea virginica dredge efficiency in texas estuaries |
| topic | Eastern oyster Gulf of Mexico gear efficiency stock assessment |
| url | https://www.cambridge.org/core/product/identifier/S2516712X19000029/type/journal_article |
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