Response of Sthenoteuthis oualaniensis to marine environmental changes in the north-central South China Sea based on satellite and in situ observations
文献类型： 外文期刊
作者： Yu, Jing 1 ; Hu, Qiwei 1 ; Tang, Danling 2 ; Zhao, Hui 3 ; Chen, Pimao 1 ;
作者机构： 1.Chinese Acad Fishery Sci, Guangdong Prov Key Lab Fishery Ecol & Environm, Sci Observing & Expt Stn South China Sea Fishery, Minist Agr & Rural Affairs,South China Sea Fisher, Guangzhou, Guangdong, Peoples R China
2.Chinese Acad Sci, South China Sea Inst Oceanog, Key Lab Ocean Remote Sensing, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
3.Guangdong Ocean Univ, Fac Chem & Environm Sci, Zhanjiang, Peoples R China
期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）
ISSN： 1932-6203
年卷期： 2019 年 14 卷 1 期
页码：
收录情况： SCI
摘要： In the South China Sea (SCS), Sthenoteuthis oualaniensis (S. oualaniensis) generally has the highest stock density in spring and occupies an important position in fisheries. The responses of S. oualaniensis to marine environments in the north-central SCS in spring (March to May) from 2006 to 2010 were analyzed using satellite and in situ observations, with generalized additive models (GAMs). A high proportion variation in catch per unit effort (CPUE) was explained by environmental variables, including sea surface temperature (SST; explaining 13.8%) and the interaction between SST and chlorophyll a (Chl-a) concentration (explaining 16.9%). SSTs within the range of 24-28 degrees C and Chl-a concentrations within 0.10-0.35 mg/m(3) had positive effects on S. oualaniensis CPUE, and SST within 28-29.5 degrees C and Chl-a concentrations within 0.05-0.20 mg/m(3) had negative effects. In addition, the response time of the maximum standardized catch per unit effort (SCPUE) in May to the maximum Chl-a in March was approximately six ten-day time step. The higher Chl-a and smaller stock size of S. oualaniensis in early March 2008 were partly associated with climatic anomalies caused by La Nina in spring and the limitation of S. oualaniensisby low temperature in 2008. The findings in this study can help better protect and manage S. oualaniensis resources in the SCS.
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