Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors
Sexual and spatio-temporal variations have been observed in the life history parameters of many aquatic species and their causes have been related to harvesting pressure and environmental changes. This study aims to explore sexual, spatial and temporal variation in the growth and maturity through we...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2021-07-01
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| Series: | Aquaculture and Fisheries |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468550X20300782 |
| _version_ | 1797205193550462976 |
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| author | Qiuyun Ma Yan Jiao Can Zhou Yiping Ren |
| author_facet | Qiuyun Ma Yan Jiao Can Zhou Yiping Ren |
| author_sort | Qiuyun Ma |
| collection | DOAJ |
| description | Sexual and spatio-temporal variations have been observed in the life history parameters of many aquatic species and their causes have been related to harvesting pressure and environmental changes. This study aims to explore sexual, spatial and temporal variation in the growth and maturity through weight-at-length, length-at-age, and maturity-at-length relationships for Lake Erie Walleye (Sander vitreus) as a case to test some hypotheses. Hypotheses on whether harvest pressure and environmental changes (both local and global scale) caused the temporal changes of these life history traits were further diagnosed. Sexual and spatio-temporal variations in these life history traits were formulated using mixed-effects models. Our study found that geographic basin, sex, year and cohort all have substantial effects on the growth and maturity of Walleye based on survey data from 1989 to 2015. Multiple factors including water supply of Lake Erie, temperature, fishing pressure of Walleye, and global climate factors were found to correlate with the temporal variations of growth and maturity of Walleye significantly. Our findings should contribute to the future interpretation of Walleye life history variations and population dynamics. The methodology constructed in this study could be applied to explore the heterogeneity and impacting factors for other species in aquatic ecosystems. |
| first_indexed | 2024-04-24T08:47:14Z |
| format | Article |
| id | doaj.art-1457c1b609dc44d5bf748c495a532a43 |
| institution | Directory Open Access Journal |
| issn | 2468-550X |
| language | English |
| last_indexed | 2024-04-24T08:47:14Z |
| publishDate | 2021-07-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Aquaculture and Fisheries |
| spelling | doaj.art-1457c1b609dc44d5bf748c495a532a432024-04-16T13:14:53ZengKeAi Communications Co., Ltd.Aquaculture and Fisheries2468-550X2021-07-0164400413Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factorsQiuyun Ma0Yan Jiao1Can Zhou2Yiping Ren3College of Fisheries, Ocean University of China, Qingdao, 266003, China; Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA; College of Marine Sciences, Shanghai Ocean University, Shanghai, 201306, ChinaDepartment of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USADepartment of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USACollege of Fisheries, Ocean University of China, Qingdao, 266003, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, China; Corresponding author. College of Fisheries, Ocean University of China, Qingdao, 266003, China.Sexual and spatio-temporal variations have been observed in the life history parameters of many aquatic species and their causes have been related to harvesting pressure and environmental changes. This study aims to explore sexual, spatial and temporal variation in the growth and maturity through weight-at-length, length-at-age, and maturity-at-length relationships for Lake Erie Walleye (Sander vitreus) as a case to test some hypotheses. Hypotheses on whether harvest pressure and environmental changes (both local and global scale) caused the temporal changes of these life history traits were further diagnosed. Sexual and spatio-temporal variations in these life history traits were formulated using mixed-effects models. Our study found that geographic basin, sex, year and cohort all have substantial effects on the growth and maturity of Walleye based on survey data from 1989 to 2015. Multiple factors including water supply of Lake Erie, temperature, fishing pressure of Walleye, and global climate factors were found to correlate with the temporal variations of growth and maturity of Walleye significantly. Our findings should contribute to the future interpretation of Walleye life history variations and population dynamics. The methodology constructed in this study could be applied to explore the heterogeneity and impacting factors for other species in aquatic ecosystems.http://www.sciencedirect.com/science/article/pii/S2468550X20300782HeterogeneityGrowth and maturityMixed effects modelGreat lakesSander vitreus |
| spellingShingle | Qiuyun Ma Yan Jiao Can Zhou Yiping Ren Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors Aquaculture and Fisheries Heterogeneity Growth and maturity Mixed effects model Great lakes Sander vitreus |
| title | Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors |
| title_full | Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors |
| title_fullStr | Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors |
| title_full_unstemmed | Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors |
| title_short | Sexual and spatio-temporal variation of Lake Erie Walleye growth and maturity: A consequence of multiple impacting factors |
| title_sort | sexual and spatio temporal variation of lake erie walleye growth and maturity a consequence of multiple impacting factors |
| topic | Heterogeneity Growth and maturity Mixed effects model Great lakes Sander vitreus |
| url | http://www.sciencedirect.com/science/article/pii/S2468550X20300782 |
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