The isotopic differences and implications for Pacific razor clams along the Washington coast
The Pacific razor clam fishery in Washington State has been co-managed by the coastal Indian Tribes and the state, but little is known about the growth and population structure of the clams due to difficulties of tagging and monitoring. Here we report the results of a pilot study using stable isotop...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2019-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_12005.pdf |
| _version_ | 1818655184710008832 |
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| author | Gao Yongwen Gilbertson Joseph Zhang Hongyan |
| author_facet | Gao Yongwen Gilbertson Joseph Zhang Hongyan |
| author_sort | Gao Yongwen |
| collection | DOAJ |
| description | The Pacific razor clam fishery in Washington State has been co-managed by the coastal Indian Tribes and the state, but little is known about the growth and population structure of the clams due to difficulties of tagging and monitoring. Here we report the results of a pilot study using stable isotope ratios (δ13C and δ18O) of razor clam shells collected in two groups (juvenile vs. adult) and from two sites (Kalaloch Beach and Roosevelt Beach) where distinct biological differences in clam growth and survival rates were observed. The δ13C values of razor clam shells ranged from -2.9 to -0.3‰, whereas δ18O values of the same samples ranged from -2.2 to +1.4‰. Between the two sites there were significant differences in δ13C values especially for juvenile clams. The δ18O profiles from two representative shells demonstrated similar patterns of rapid growth as juveniles and seasonal patterns throughout the life span. Profiles of δ13C were sinusoidal but did not show seasonality and signatures of ocean acidification. We concluded that stable isotope analysis of razor clam shells is a potential new tool in shellfish research and management. |
| first_indexed | 2024-12-17T03:05:40Z |
| format | Article |
| id | doaj.art-5bfa5e089aa64d979326df3adae2febe |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-17T03:05:40Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-5bfa5e089aa64d979326df3adae2febe2022-12-21T22:05:58ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01981200510.1051/e3sconf/20199812005e3sconf_wri-162018_12005The isotopic differences and implications for Pacific razor clams along the Washington coastGao Yongwen0Gilbertson Joseph1Zhang Hongyan2Makah Fisheries ManagementHoh Natural Resources DepartmentSchool of Environment & Sustainability, University of MichiganThe Pacific razor clam fishery in Washington State has been co-managed by the coastal Indian Tribes and the state, but little is known about the growth and population structure of the clams due to difficulties of tagging and monitoring. Here we report the results of a pilot study using stable isotope ratios (δ13C and δ18O) of razor clam shells collected in two groups (juvenile vs. adult) and from two sites (Kalaloch Beach and Roosevelt Beach) where distinct biological differences in clam growth and survival rates were observed. The δ13C values of razor clam shells ranged from -2.9 to -0.3‰, whereas δ18O values of the same samples ranged from -2.2 to +1.4‰. Between the two sites there were significant differences in δ13C values especially for juvenile clams. The δ18O profiles from two representative shells demonstrated similar patterns of rapid growth as juveniles and seasonal patterns throughout the life span. Profiles of δ13C were sinusoidal but did not show seasonality and signatures of ocean acidification. We concluded that stable isotope analysis of razor clam shells is a potential new tool in shellfish research and management.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_12005.pdf |
| spellingShingle | Gao Yongwen Gilbertson Joseph Zhang Hongyan The isotopic differences and implications for Pacific razor clams along the Washington coast E3S Web of Conferences |
| title | The isotopic differences and implications for Pacific razor clams along the Washington coast |
| title_full | The isotopic differences and implications for Pacific razor clams along the Washington coast |
| title_fullStr | The isotopic differences and implications for Pacific razor clams along the Washington coast |
| title_full_unstemmed | The isotopic differences and implications for Pacific razor clams along the Washington coast |
| title_short | The isotopic differences and implications for Pacific razor clams along the Washington coast |
| title_sort | isotopic differences and implications for pacific razor clams along the washington coast |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/24/e3sconf_wri-162018_12005.pdf |
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