Analysis of spatial distribution and community structure of fishery resources in spring in coastal waters of Dapeng Peninsula,Shenzhen
Based on the 2020 fishery resources survey data in spring in coastal waters of Dapeng Peninsula,Shenzhen,the spatial distribution and community structure were studied.To compare the biodiversity,evenness,dominant species and other structure characteristics of various communities,the spatial distribution of the fishery resources density in this area were analyzed while the communities were classified using multivariate statistical method.The fishery resources density on the west of Dapeng Peninsula was higher than the east,and the fishery resources density on the southeast gradually decreased from southwest to northeast in this area as a density transition zone between the east and west of Dapeng Peninsula.The fishery resources in coastal waters of this area had decreased over the years,which could be divided into three parts.The western and southern community's resource density was the highest,which was 553.59 kg·km-2,while the eastern and the northeastern community's resource density were equal with a lower level,which were 278.61kg·km-2 and 273.33 kg·km-2.In general,the fishery resources in coastal waters of Dapeng Peninsula gradually decreased,while the dominant species were changed.Therefore,ecological restoration should be carried out according to the characteristics of each community and the human impact.The results of this paper may give a clue for the protection and management of fishery resources in coastal waters of Dapeng Peninsula.
fishery resourcesspatial distributioncommunity structurecoastal waters of Dapeng Peninsula
万方数据
维普
