鲟鱼集约化养殖水生态环境因子相关性分析

Correlation Analysis of Water Ecological Environment Factors in Sturgeon Intensive Culture

为更好地了解鲟鱼集约化养殖水浮游生物种类、丰度、生物量等群落特征,于2021年秋季在北京市鲟龙种业养殖场布设5个采样点,对浮游生物样品进行采集与分析,并采用Margalef物种丰富度指数(D)、Shannon-Wiener多样性指数和Pielou均匀度指数对水质进行评价。通过调查分析,进水口共采集到浮游植物2门16种、浮游动物3大类11种,养殖鱼池共采集到浮游植物5门61种、采集到浮游动物2大类39种。通过浮游动植物的指示作用以及利用生物多样性指数进行水质评价,得出水质处于清洁–中污状态,而单因素理化指标显示养殖鱼池水质整体处于V类,进行水质生态系统健康评价还需同时结合水体理化因子、浮游生物指示种等等进行系统的评价。此次调查为鲟鱼集约化养殖水水生生物研究积累了本底资料。

In order to better understand the communitycharacteristics of plankton species, abundance and biomass in sturgeonintensive culture water, five sampling sites were set up in the sturgeonbreeding farm in Beijing in the autumn of 2021 to collect and analyze planktonsamples. Margalef species richness index (D),Shannon-Wiener diversity index and Pielou evenness index were used to evaluatewater quality. Through investigation and analysis, 16 species of phytoplanktonin 2 phyla and 11 species of zooplankton in 3 categories were collected in theintake, 61 species of phytoplankton in 5 phyla and 39 species of zooplankton in2 categories were collected in the aquaculture pond. By indicating the functionof planktonic animals and plants and the use of biological diversity index ofwater quality assessment, it is concluded that the water quality is inclean-corrupt state, and single factor in physical and chemical indicatorssuggests farmed fish pond water quality whole V class, ecosystem health also needs to evaluate the water quality inwater physical and chemical factors of combination, system of evaluation on theplankton indicator species, and so on. This survey accumulated background datafor the research of aquatic organisms in sturgeon intensive culture water.