基于Ecopath模型的中街山列岛海域曼氏无针乌贼生态容量的评估

Ecological Capacity Assessment of Sepiella maindroni in the Sea Area of Zhongjieshan Archipelago Based on Ecopath Model

利用Ecopath with Ecosim 6.5(EWE)软件构建了包含17个生态功能组的中街山列岛海域生态模型,在该模型基础上分析研究中街山列岛海域生态系统状况,研究结果表明生态系统中各个功能组的有效营养级在1-4.648之间。中街山列岛海域曼氏无针乌贼的营养级为3.562,属于中等营养级。中街山列岛海域功能组的营养转换效率在0.013-0.991之间。结合相关参数评估计算,中街山列岛海域曼氏无针乌贼的生态容量为30.8 t,可增殖放流曼氏无针乌贼受精卵约224 kg。

To address this concern,our study utilized the Ecopath with Ecosim 6.5(EWE)software to construct an ecological model encompassing 17 ecological functional groups specific to the marine ecosystem of Zhongjieshan Archipelago.Through our analysis,we gained insights into the current state of the ecosystem.Our findings reveal that the trophic levels of the functional groups range from 1 to 4.648,with Sepiella maindroni exhibiting a trophic level of 3.562,indicating a moderate nutritional position within the food web.Additionally,the nutritional conversion efficiencies of the functional groups in the study area vary between 0.013 and 0.991.By considering various parameters,we estimate that the ecological carrying capacity for S.maindroni in the Zhongjieshan Archipelago is approximately 30.8 tons,and the potential release of fertilized eggs for population enhancement amounts to around 224 kilograms.These findings provide valuable insights for sustainable management and conservation efforts in the marine ecosystem of Zhongjieshan Archipelago.