In1995,the official implementation of the system of summer fishing moratorium was one of the most important systems in the field of marine fishery management in China.It mainly focuses on offshore fishery resources an...In1995,the official implementation of the system of summer fishing moratorium was one of the most important systems in the field of marine fishery management in China.It mainly focuses on offshore fishery resources and the specific situation of the fishery production,taking special protection of marine fishery resources system in order to alleviate the pressure on the marine fishery resources and the marine environment caused by the ever-increasing of fishing vessels and the excessive fishing intensity.The implementation of this system is a major policy for promoting the sustainable development of marine fishery resources in China.This paper conducts a special legal study on the system of summer fishing moratorium in the Bohai Sea,aiming to further improve the system and protect marine fishery resources and marine ecological environment.展开更多
[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 tem...[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.展开更多
文摘In1995,the official implementation of the system of summer fishing moratorium was one of the most important systems in the field of marine fishery management in China.It mainly focuses on offshore fishery resources and the specific situation of the fishery production,taking special protection of marine fishery resources system in order to alleviate the pressure on the marine fishery resources and the marine environment caused by the ever-increasing of fishing vessels and the excessive fishing intensity.The implementation of this system is a major policy for promoting the sustainable development of marine fishery resources in China.This paper conducts a special legal study on the system of summer fishing moratorium in the Bohai Sea,aiming to further improve the system and protect marine fishery resources and marine ecological environment.
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)+1 种基金State Key Laboratory of Tropical Oceanography,South China Sea Institute of Oceanology,Chinese Academy of Sciences(LTO1806)National Key Technology R&D Program(2012BAD18B01)
文摘[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.