基于生物资源的万山海洋牧场生境适宜性评估OA北大核心CSTPCD

The ecological environment in the waters of the Wanshan Archipelago is deteriorating,and there is a continuous decline in fishery resources.Urgent measures are required to establish marine ranching in the Wanshan Archipelago,restore the ecological balance in the waters,and ensure the sustainable utilization of fishery resources.Currently,limited research exists on the suitability assessment of marine ranching based on marine biological re-sources.This study utilized fishery resource survey data from December 2020,along with the data of 13 environ-mental factors.The MaxEnt species distribution model was employed to predict potential distribution areas for se-lected species,namely Pennahia argentata,Nemipterus japonicus,Portunus sanguinolentus,and Murex trapa.The study aimed to explore the relationship between the geographical distribution of these marine species and the envi-ronmental factors and conduct a habitat suitability assessment for Wanshan Marine Ranch.The results revealed the following:(1)Area under the curve values for each model exceeded 0.9,indicating a well-simulated potential dis-tribution of these species by the constructed model.The MaxEnt model can be applied in the future to predict habi-tat distribution areas for the four species;(2)Benthic phytoplankton density,seabed temperature,and seafloor sili-cate concentration emerged as crucial environmental factors influencing the distribution of these four marine spe-cies;(3)Based on the overlapping areas of the habitat suitability index distribution for the four marine species using the MaxEnt model,the recommended construction area for marine ranching is suggested to be in the range of 21.85-22.15°N latitude and 113.6-114.2°E longitude.These research findings offer a scientific basis for the plan-ning and construction of Wanshan Marine Ranch.