上海海洋大学学报2024，Vol.33Issue(6)：1345-1356,12.DOI:10.12024/jsou.20240404532
基于组合物种分布模型研究江苏南部海域小黄鱼的空间分布特征及其影响因素
Spatial distribution and influencing factors of Larimichthys polyactis in the southern waters of Jiangsu Province based on ensemble species distribution model(ESDM)
摘要
Abstract
To cope with the increasing decline of offshore fishery resources and to provide essential information for spatial-based fishery management,in this study,the spatial distribution and influencing factors of Larimichthys polyactis in the southern waters of Jiangsu Province were examined using an ensemble species distribution model(ESDM)based on the survey conducted during spring and autumn in 2019-2022.Five biotic and abiotic factors were selected to analyze the distribution characteristics of L.polyactis and its relationship with influencing factors.Results showed that the ensemble species distribution model had higher AUC(spring:0.995±0.002;autumn:0.985±0.001)and TSS(spring:0.935±0.038;autumn:0.903±0.029)values than those in single species distribution models.Sea bottom temperature(0.40)and sea bottom salinity(0.38)had the highest importance levels in spring,while chlorophyll a and prey had greater influences on the spatial distribution of L.polyactis in autumn with importance levels of 0.53 and 0.46.L.polyactis were mainly distributed in coastal areas in spring with a strip-like distribution;while in autumn,L.polyactis were mainly distributed in the offshore areas,with suitable habitat mostly distributed in the areas of 32.5°N-33.6° N,122°E-122.5°E with a block-like distribution,and the area of suitable area is larger than that in spring.Furthermore,the distribution of L.polyactis showed obvious interannual differences.For example,the range of suitable habitat for L.polyactis in 2021 was prominently smaller than that in other years and the range of distribution was also limited.The study showed that the ESDM had better performance and could better reflect the spatial distribution and influencing factors of L.polyactis;the suitable areas and influencing factors for L.polyactis varied from season to season.This study can provide a theoretical basis for revealing the spatio-temporal distribution and changing law of L.polyactis in this area,and provide basic information for the implementation of space-based fishery management and optimization of marine protected areas(MPAs).关键词
小黄鱼/栖息地适宜性/影响因素/组合物种分布模型/江苏南部海域Key words
Larimichthys polyactis/habitat suitability/influencing factors/ensemble species distribution model/southern waters of Jiangsu Province分类
农业科技引用本文复制引用
张虎,祖凯伟,沈独清,薛莹,石东雨,祝超文,贲成恺,袁健美,胡海生,肖悦悦..基于组合物种分布模型研究江苏南部海域小黄鱼的空间分布特征及其影响因素[J].上海海洋大学学报,2024,33(6):1345-1356,12.基金项目
2023江苏省省级农业生态保护与资源利用(渔业生态与资源监测)专项(2023-SJ-136,2023-SJ-137) （渔业生态与资源监测）
