Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System
China has recently launched extensive marine ranching projects, highlighting the need for scientific evaluation of ecosystem structure and function to guide their development. This study established two energy flow models and an evaluation index system to assess the structure, function, carrying cap...
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MDPI AG
2025-01-01
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| author | Jie Feng Haolin Yu Lingjuan Wu Chao Yuan Xiaolong Zhao Huiying Sun Cheng Cheng Yifei Li Jingyi Sun Yan Li Xiaolong Wang Yongjun Shang Jiangling Xu Tao Zhang |
| author_facet | Jie Feng Haolin Yu Lingjuan Wu Chao Yuan Xiaolong Zhao Huiying Sun Cheng Cheng Yifei Li Jingyi Sun Yan Li Xiaolong Wang Yongjun Shang Jiangling Xu Tao Zhang |
| author_sort | Jie Feng |
| collection | DOAJ |
| description | China has recently launched extensive marine ranching projects, highlighting the need for scientific evaluation of ecosystem structure and function to guide their development. This study established two energy flow models and an evaluation index system to assess the structure, function, carrying capacity, and ecological status of both a marine ranching ecosystem and a nearby control site in the Beibu Gulf. The results show that the ranching ecosystem outperformed the control ecosystem in terms of food chain length, system size, and ecological carrying capacity of economically important species. The ranching ecosystem was classified as “relatively good”, while the control ecosystem was deemed “relatively poor”, which may confirm the success of the ranching efforts. Mussels, large crabs, and scorpaenidae were identified as key species for stock enhancement based on their biomass potential. Scenario simulations using Ecosim, driven by biomass and fishing factors, indicate that stock enhancement strategies targeting MOB (mussels, oysters, and barnacles) significantly improved the ranching ecosystem, raising its status to “good”. However, the simulations also revealed that stock enhancement had limited effects on optimizing food web structure, system organization, and energy transfer efficiency, suggesting that a combination of strategies is necessary for further improvement. |
| format | Article |
| id | doaj-art-1e464326730749798ef048eb6301618e |
| institution | Kabale University |
| issn | 2076-2615 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Animals |
| spelling | doaj-art-1e464326730749798ef048eb6301618e2025-01-24T13:17:51ZengMDPI AGAnimals2076-26152025-01-0115216510.3390/ani15020165Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching SystemJie Feng0Haolin Yu1Lingjuan Wu2Chao Yuan3Xiaolong Zhao4Huiying Sun5Cheng Cheng6Yifei Li7Jingyi Sun8Yan Li9Xiaolong Wang10Yongjun Shang11Jiangling Xu12Tao Zhang13North China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaLaboratory for Marine Science and Technology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaLaboratory for Marine Science and Technology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaGuangxi Academy of Oceanography, Nanning 530022, ChinaMarine Science Research Institute of Shandong Province, Qingdao 266104, ChinaLaboratory for Marine Science and Technology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, ChinaNorth China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, ChinaLaboratory for Marine Science and Technology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, ChinaChina has recently launched extensive marine ranching projects, highlighting the need for scientific evaluation of ecosystem structure and function to guide their development. This study established two energy flow models and an evaluation index system to assess the structure, function, carrying capacity, and ecological status of both a marine ranching ecosystem and a nearby control site in the Beibu Gulf. The results show that the ranching ecosystem outperformed the control ecosystem in terms of food chain length, system size, and ecological carrying capacity of economically important species. The ranching ecosystem was classified as “relatively good”, while the control ecosystem was deemed “relatively poor”, which may confirm the success of the ranching efforts. Mussels, large crabs, and scorpaenidae were identified as key species for stock enhancement based on their biomass potential. Scenario simulations using Ecosim, driven by biomass and fishing factors, indicate that stock enhancement strategies targeting MOB (mussels, oysters, and barnacles) significantly improved the ranching ecosystem, raising its status to “good”. However, the simulations also revealed that stock enhancement had limited effects on optimizing food web structure, system organization, and energy transfer efficiency, suggesting that a combination of strategies is necessary for further improvement.https://www.mdpi.com/2076-2615/15/2/165marine ranchingstock enhancementindex systemcarrying capacityscenarios simulation |
| spellingShingle | Jie Feng Haolin Yu Lingjuan Wu Chao Yuan Xiaolong Zhao Huiying Sun Cheng Cheng Yifei Li Jingyi Sun Yan Li Xiaolong Wang Yongjun Shang Jiangling Xu Tao Zhang Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System Animals marine ranching stock enhancement index system carrying capacity scenarios simulation |
| title | Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System |
| title_full | Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System |
| title_fullStr | Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System |
| title_full_unstemmed | Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System |
| title_short | Evaluating Ecosystem Characteristics and Ecological Carrying Capacity for Marine Fauna Stock Enhancement Within a Marine Ranching System |
| title_sort | evaluating ecosystem characteristics and ecological carrying capacity for marine fauna stock enhancement within a marine ranching system |
| topic | marine ranching stock enhancement index system carrying capacity scenarios simulation |
| url | https://www.mdpi.com/2076-2615/15/2/165 |
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