Impacts of eco-spatial marine water changes on fish diversity in the Zhujiang River estuary
Data about fish diversity in the Zhujiang River estuary from 2016 to 2018 were collected for the water environment data analysis and species diversity assessment.The results of RDA analysis showed that water depth,dissolved oxygen,water coverage,sa-linity,pH and water temperature had certain influences on fish,among which the degree of chromium influence on fish diversity ac-counted for 25.92%of the variables of overall water quality.During the experimental period,the parameters of seawater quality changed over time,and the response of family,genus,and species of fish to nitrite and lead changes was the most senstitive,especial-ly the Cyprinidae.The large amount of industrial pollution discharged affected the fish population size.In addition,chromium and pe-troleum substances were the significant conditions that determined the fish diversity in the Zhujiang River estuary and largely limited the activity value of ecological space.
water qualityecological assessmentfish diversityecological spaceZhujiang River estuary
NETL
NSTL
万方数据
