Response of Spatio-temporal Distribution of Fishery Resources to Mairne Environment in the Northern South China Sea

摘要

[Objective]The paper was to investigate the spatio-temporal distribution of fishery resources in the northern South China Sea and to provide reference for scientific evaluation and effective protection of fishery resources in the northern South China Sea.[Methods]Based on monitoring data and satellite remote sensing data[including Sea Surface Temperature(SST),Chlorophyll a concentration(Chl a)and Sea Surface Wind(SSW)]in winter(January to February)and summer(August to September)in the northern South China Sea,the relationship between spatio-temporal distribution of fishery resources and marine environment was investigated by using Generalized Linear Models(GLM),fishing ground gravity and correlation analysis.[Results]The suitable SST and Chl a of light falling-net fishing ground in winter were 17-23℃and 0.2-0.6 mg/m^3,respec-tively.The suitable SST and Chl a in summer were approximately 28℃and 0.2-1.0 mg/m^3.Standardized Catch Per Unit Effort(SCPUE)was higher in summer(2-4)and lower in winter(1-3).From winter to summer,the fishing ground gravity migrated to the east about 1°E.[Conclusion]The spatio-temporal distribution of fishery resources is related to eastern Hainan-western Guangdong upwelling and the coastal flow,caused by the mon-soon in the northern South China Sea,and the major catch species of light fallingnet.