您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Relationship between the Spatial and Temporal Distribution of Squid-Jigging Vessels Operations and Marine Environment in the North Pacific Ocean

文献类型： 外文期刊

作者： Fei, Yingjie 1 ; Yang, Shenglong 2 ; Fan, Wei 2 ; Shi, Huimin 2 ; Zhang, Han 1 ; Yuan, Sanling 1 ;

作者机构： 1.Univ Shanghai Sci & Technol, Coll Sci, Shanghai 200093, Peoples R China

2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Key & Open Lab Remote Sensing Informat Technol Fi, Shanghai 200090, Peoples R China

3.Minist Agr, Key Lab East China Sea & Ocean Fishery Resources, Shanghai 200090, Peoples R China

4.Shanghai Ocean Univ, Coll Informat, Shanghai 201306, Peoples R China

关键词： squid jigging vessels; automatic identification system; fishing effort; marine environmental factors; generalized additive model

期刊名称：JOURNAL OF MARINE SCIENCE AND ENGINEERING （ 影响因子：2.744； 五年影响因子：2.727 ）

ISSN：

年卷期： 2022 年 10 卷 4 期

页码：

收录情况： SCI

摘要： Information and understanding of fishing activities at sea is important to fisheries science, public authorities and policy-makers. To understand the spatial-temporal distribution characteristics of squid-jigging vessels and how the marine environment affects the distribution of squid-jigging vessels in the North Pacific Ocean, operation behavior of the squid-jigging vessels was analysed by using spatial-temporal factors and marine environmental factors. The fishing effort (FE) information was calculated based on automatic identification system (AIS) data of squid-jigging fishing vessels in the North Pacific Ocean from July to November in 2017 to 2020, and the overlay maps of the spatial distribution of environmental factors and fishing effort were plotted together with four environmental variables (sea surface temperature (SST), sea surface height (SSH), sea surface salinity (SSS), and concentration of chlorophyll-a (Chla)). A generalized additive model (GAM) was used to investigate the nonlinear influence of the marine environment on squid-jigging fishing vessel activity in the North Pacific Ocean. The results show that fishing effort increased from July to August and then decreased from September to November. The fishing effort was highest in August. The intensity of the fishing effort suggests squid-jigging vessel operations had significant seasonal variations. The overlay maps suggest that the fishing effort of squid-jigging vessels was mainly located in areas where SST was between 10 degrees C and 20 degrees C, SSH was between -0.3 m and 0.2 m, SSS was between 32 x 10(-3) and 34 x 10(-3) , and Chla was between 0.1 mg . m(-3) and 0.4 mg . m(-3). The generalized additive model indicated evidence of nonlinear relationships between fishing effort and the three environmental factors. The favorable ranges of SST, SSH, SSS and Chla for fishing effort were 15 degrees C similar to 18 degrees C, 0 similar to 0.2 m, 33 x 10(-3) similar to 34 x 10(-3) and 0.2 mg . m(-3) similar to 0.4 mg . m(-3), respectively. Moreover, the area beneficial to fishing effort was in 41 degrees N similar to 44 degrees N, 152 degrees E similar to 165 degrees E.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台