Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data
Poyang Lake, the largest freshwater lake in China, possesses abundant fishery resources, but its fish stock status is still unclear. In this work, the stock status of and fishing efforts of nine major economic fishes in the Poyang Lake were estimated from 2000 to 2019 with a catch-based maximum sust...
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MDPI AG
2022-02-01
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| Series: | Fishes |
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| author | Yang Liu Huiyun Fu Linlong Wang Li Lin Gang He Peifeng Fu Changlai Wang Yanping Zhang Bin Kang |
| author_facet | Yang Liu Huiyun Fu Linlong Wang Li Lin Gang He Peifeng Fu Changlai Wang Yanping Zhang Bin Kang |
| author_sort | Yang Liu |
| collection | DOAJ |
| description | Poyang Lake, the largest freshwater lake in China, possesses abundant fishery resources, but its fish stock status is still unclear. In this work, the stock status of and fishing efforts of nine major economic fishes in the Poyang Lake were estimated from 2000 to 2019 with a catch-based maximum sustainable yield (CMSY) model based on catch and resilience data. It was further predicted whether the biomass of those fishes could be restored to support maximum sustainable yield (<i>B</i><sub>msy</sub>) under the policy of “Ten years fishing moratorium in the Yangtze River”. The results showed that goldfish <i>Carassius auratus</i>, grass carp <i>Ctenopharyngodon idella</i>, and black carp <i>Mylopharyngodon piceus</i> suffered from higher fishing efforts and low biomass in the past 20 years; bighead carp <i>Hypophthalmichthys nobilis</i>, yellow catfish <i>Tachysurus fulvidraco</i>, and common carp <i>Cyprinus carpio</i> responded differently to their fishing efforts; silver carp <i>Hypophthalmichthys molitrix</i>, Amur catfish <i>Silurus asotus</i>, and mandarin fish <i>Siniperca chuatsi</i> were underexploited. Six species were overfished in 2019, and their biomass would be expected to recover for sustainable exploitation during the fishing moratorium, except for <i>M. piceus</i>. This study provided a case study of feasible freshwater fishery evaluation in limnetic ecosystems. |
| first_indexed | 2024-03-09T21:59:33Z |
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| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-09T21:59:33Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-5fce4b6537f8480298066ba2b3c47d2f2023-11-23T19:51:54ZengMDPI AGFishes2410-38882022-02-01714710.3390/fishes7010047Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited DataYang Liu0Huiyun Fu1Linlong Wang2Li Lin3Gang He4Peifeng Fu5Changlai Wang6Yanping Zhang7Bin Kang8Key Laboratory of Mariculture (Ocean University of China), Ministry of Education, Qingdao 266003, ChinaDepartment of Fishery Resources, Jiangxi Fisheries Research Institute, Nanchang 330000, ChinaKey Laboratory of Mariculture (Ocean University of China), Ministry of Education, Qingdao 266003, ChinaKey Laboratory of Mariculture (Ocean University of China), Ministry of Education, Qingdao 266003, ChinaDepartment of Fishery Resources, Jiangxi Fisheries Research Institute, Nanchang 330000, ChinaDepartment of Fishery Resources, Jiangxi Fisheries Research Institute, Nanchang 330000, ChinaDepartment of Fishery Resources, Jiangxi Fisheries Research Institute, Nanchang 330000, ChinaDepartment of Fishery Resources, Jiangxi Fisheries Research Institute, Nanchang 330000, ChinaKey Laboratory of Mariculture (Ocean University of China), Ministry of Education, Qingdao 266003, ChinaPoyang Lake, the largest freshwater lake in China, possesses abundant fishery resources, but its fish stock status is still unclear. In this work, the stock status of and fishing efforts of nine major economic fishes in the Poyang Lake were estimated from 2000 to 2019 with a catch-based maximum sustainable yield (CMSY) model based on catch and resilience data. It was further predicted whether the biomass of those fishes could be restored to support maximum sustainable yield (<i>B</i><sub>msy</sub>) under the policy of “Ten years fishing moratorium in the Yangtze River”. The results showed that goldfish <i>Carassius auratus</i>, grass carp <i>Ctenopharyngodon idella</i>, and black carp <i>Mylopharyngodon piceus</i> suffered from higher fishing efforts and low biomass in the past 20 years; bighead carp <i>Hypophthalmichthys nobilis</i>, yellow catfish <i>Tachysurus fulvidraco</i>, and common carp <i>Cyprinus carpio</i> responded differently to their fishing efforts; silver carp <i>Hypophthalmichthys molitrix</i>, Amur catfish <i>Silurus asotus</i>, and mandarin fish <i>Siniperca chuatsi</i> were underexploited. Six species were overfished in 2019, and their biomass would be expected to recover for sustainable exploitation during the fishing moratorium, except for <i>M. piceus</i>. This study provided a case study of feasible freshwater fishery evaluation in limnetic ecosystems.https://www.mdpi.com/2410-3888/7/1/47lake fisheriesstock assessmentCMSY modelfishing moratoriumfisheries recoveryfisheries management |
| spellingShingle | Yang Liu Huiyun Fu Linlong Wang Li Lin Gang He Peifeng Fu Changlai Wang Yanping Zhang Bin Kang Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data Fishes lake fisheries stock assessment CMSY model fishing moratorium fisheries recovery fisheries management |
| title | Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data |
| title_full | Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data |
| title_fullStr | Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data |
| title_full_unstemmed | Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data |
| title_short | Fishery Status and Rebuilding of Major Economic Fishes in the Largest Freshwater Lake in China Based on Limited Data |
| title_sort | fishery status and rebuilding of major economic fishes in the largest freshwater lake in china based on limited data |
| topic | lake fisheries stock assessment CMSY model fishing moratorium fisheries recovery fisheries management |
| url | https://www.mdpi.com/2410-3888/7/1/47 |
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