Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China
China’s marine fisheries have made a huge contribution to the world’s food supply at the expense of wild resources collapse by overfishing. Accordingly, the government has introduced a series of measures represented by seasonal fishing moratorium to achieve sustainable fisheries. To evaluate the imp...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-04-01
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| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.886799/full |
| _version_ | 1818366543474458624 |
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| author | Yefu Kong Bin Kang Xiaotao Shi |
| author_facet | Yefu Kong Bin Kang Xiaotao Shi |
| author_sort | Yefu Kong |
| collection | DOAJ |
| description | China’s marine fisheries have made a huge contribution to the world’s food supply at the expense of wild resources collapse by overfishing. Accordingly, the government has introduced a series of measures represented by seasonal fishing moratorium to achieve sustainable fisheries. To evaluate the impact of the seasonal fishing moratorium on the ecosystem of the Minjiang Estuary in southeastern China, three ecosystem models, one in 2006, one in 2016 after 10 years seasonal fishing moratorium, and one in 2016 simulated under the scenario without a fishing moratorium, were constructed by Ecopath with Ecosim. Based on the 2016 model, the status of the Minjiang Estuary ecosystem after 50 years was simulated under four scenarios of different combinations of fishing pressure and durations of the fishing moratorium. The results showed that in the 2016 model, parameters as total ecosystem flow, mean fishing trophic level, and Finn’s index were 9,235.407 t km−2 year−1, 2.94, and 0.920, respectively, all significantly higher than those extracted from the 2016 simulated model, suggesting the effectiveness of the seasonal fishing moratorium. Under scenario analysis, extending the fishing moratorium by 3 months and reducing fishing pressure by 50% showed synergistic effects to achieve a better result than the current fishing moratorium strategy. |
| first_indexed | 2024-12-13T22:37:50Z |
| format | Article |
| id | doaj.art-9f61f58c6184482c9ef8759deb19487b |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-13T22:37:50Z |
| publishDate | 2022-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-9f61f58c6184482c9ef8759deb19487b2022-12-21T23:28:56ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-04-01910.3389/fmars.2022.886799886799Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern ChinaYefu Kong0Bin Kang1Xiaotao Shi2Fisheries College, Ocean University of China, Qingdao, ChinaFisheries College, Ocean University of China, Qingdao, ChinaHubei International Science and Technology Cooperation Base of Fish Passage, China Three Gorges University, Yichang, ChinaChina’s marine fisheries have made a huge contribution to the world’s food supply at the expense of wild resources collapse by overfishing. Accordingly, the government has introduced a series of measures represented by seasonal fishing moratorium to achieve sustainable fisheries. To evaluate the impact of the seasonal fishing moratorium on the ecosystem of the Minjiang Estuary in southeastern China, three ecosystem models, one in 2006, one in 2016 after 10 years seasonal fishing moratorium, and one in 2016 simulated under the scenario without a fishing moratorium, were constructed by Ecopath with Ecosim. Based on the 2016 model, the status of the Minjiang Estuary ecosystem after 50 years was simulated under four scenarios of different combinations of fishing pressure and durations of the fishing moratorium. The results showed that in the 2016 model, parameters as total ecosystem flow, mean fishing trophic level, and Finn’s index were 9,235.407 t km−2 year−1, 2.94, and 0.920, respectively, all significantly higher than those extracted from the 2016 simulated model, suggesting the effectiveness of the seasonal fishing moratorium. Under scenario analysis, extending the fishing moratorium by 3 months and reducing fishing pressure by 50% showed synergistic effects to achieve a better result than the current fishing moratorium strategy.https://www.frontiersin.org/articles/10.3389/fmars.2022.886799/fullEcopath with Ecosimecosystem characteristicsfishing moratoriumfishing pressuredynamic simulation |
| spellingShingle | Yefu Kong Bin Kang Xiaotao Shi Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China Frontiers in Marine Science Ecopath with Ecosim ecosystem characteristics fishing moratorium fishing pressure dynamic simulation |
| title | Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China |
| title_full | Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China |
| title_fullStr | Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China |
| title_full_unstemmed | Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China |
| title_short | Modeling the Effects of Seasonal Fishing Moratorium on the Ecosystem of the Minjiang Estuary in Southeastern China |
| title_sort | modeling the effects of seasonal fishing moratorium on the ecosystem of the minjiang estuary in southeastern china |
| topic | Ecopath with Ecosim ecosystem characteristics fishing moratorium fishing pressure dynamic simulation |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.886799/full |
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