Effect Evaluation of Summer Fishing Moratorium (SFM)in Daya Bay Based on Remote Sensing and Survey Data  

作　　者：yu jing hu qiwei chen pimao mang qi 

机构地区：[1]Guangdong Provincial Key Laboratory of Fishery Ecology and Environment/Scientific Observing and Experimental Station of South China SeaFishery Resources and Environment,Ministry of Agriculture/Key Laboratory of Marine Ranching Technology,Chinese Academy of FisherySciences/South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China [2]不详

出　　处：《Animal Husbandry and Feed Science》2018年第4期219-225,共7页动物与饲料科学（英文版）

基　　金：Supported by Natural Science Foundation of Guangdong Province(2018A030313120);Basal Research Fund of Central Public-interest Scientific Institutions in Chinese Academy of Aquatic Sciences(2018HY-ZD0104);State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences(LTO1806);National Key Technology R&D Program(2012BAD18B01)

摘　　要：[Objective] The paper was to quantitatively evaluate the maintenance effect of summer fishing moratorium （SFM） in Daya Bay. [Method]Based on satellite remote sensing and trawl surveys, the changes in sea surface temperature （SST） , chlorophyll a （Chla） concentration, catchper unit effort （CPUE）, biodiversity, species composition, body length and weight of total catch in Daya Bay before SFM （May 2015） and after SFM（August 2015） were comparatively analyzed. [Result] The CPUE of total catch mainly distributed from 0-10 kg/h before SFM to 0-40 kg/h afterSFM. The average body length and weight of catches increased, indicating that the growth rate of catches was accelerated. The indices of ShannonWiener diversity index （H忆） and Pielou evenness index（J忆） increased by 0.36 and 0.14, respectively, indicating that the community structure wasimproved. The biomass spectra of fishery resources community suggested that the slopes of normalized biomass spectra after SFM was greater than-1, and the biomass of fishery resources increased with the increase of individual body weight after SFM. SFM reduced offshore fishing intensity,recovered and conserved the fishery resources in Daya Bay. [Conclusion] In order to improve the SFM system and promote the sustainable development of coastal fishery resources, it is suggested to prolong the time of SFM appropriately, reduce the number of coastal fishing boats, and strengthen the conservation of fish resources.[Objective] The paper was to quantitatively evaluate the maintenance effect of summer fishing moratorium （SFM） in Daya Bay. [Method]Based on satellite remote sensing and trawl surveys, the changes in sea surface temperature （SST） , chlorophyll a （Chla） concentration, catchper unit effort （CPUE）, biodiversity, species composition, body length and weight of total catch in Daya Bay before SFM （May 2015） and after SFM（August 2015） were comparatively analyzed. [Result] The CPUE of total catch mainly distributed from 0-10 kg/h before SFM to 0-40 kg/h afterSFM. The average body length and weight of catches increased, indicating that the growth rate of catches was accelerated. The indices of ShannonWiener diversity index （H忆） and Pielou evenness index（J忆） increased by 0.36 and 0.14, respectively, indicating that the community structure wasimproved. The biomass spectra of fishery resources community suggested that the slopes of normalized biomass spectra after SFM was greater than-1, and the biomass of fishery resources increased with the increase of individual body weight after SFM. SFM reduced offshore fishing intensity,recovered and conserved the fishery resources in Daya Bay. [Conclusion] In order to improve the SFM system and promote the sustainable development of coastal fishery resources, it is suggested to prolong the time of SFM appropriately, reduce the number of coastal fishing boats, and strengthen the conservation of fish resources.

关 键 词：Summer fishing moratorium （SFM） Fishery conservation Satellite remote sensing Daya Bay 

分 类 号：S931[农业科学—渔业资源] S951.4[农业科学—水产科学]