淮河干流信阳段大型底栖动物功能摄食类群时空分布及水质评价  

Temporal-spatial distribution of functional feeding groups of macroinvertebrate and biological evaluation of water quality in Xinyang section of the Huaihe River main stream

作　　者：张泽豪 张景晓 于淼 高云霓 董静 宋东蓥 李学军 ZHANG Zehao;ZHANG Jingxiao;YU Miao;GAO Yunni;DONG Jing;SONG Dongying;LI Xuejun(College of Fisheries,Henan Normal University,Xinxiang 453007,Henan,China;College of Food Science,Henan Institute of Science and Technology,Xinxiang 453003,Henan,China;Observation and Research Station on Water Ecosystem in Danjiangkou Reservoir of Henan Province,Nanyang 474450,Henan,China)

机构地区：[1]河南师范大学水产学院,河南新乡453007 [2]河南科技学院食品学院,河南新乡453003 [3]河南省丹江口水库水域生态系统野外观测研究站,河南南阳474450

出　　处：《应用生态学报》2023年第10期2820-2826,共7页Chinese Journal of Applied Ecology

基　　金：河南省重大公益项目(201300311300)资助。

摘　　要：2021年11月至2022年9月对淮河干流信阳段的大型底栖动物和水环境因子进行了4次野外调查,分析了该段大型底栖动物功能摄食类群的结构与时空分布特征,并对河流水质进行了生物评价。流域内共采集到大型底栖动物73种,隶属于3门7纲42科,不同月份大型底栖动物的优势种存在明显变化,其中秀丽白虾在2022年7月和9月成为流域内的绝对优势种。在不同采样月份,流域内大型底栖动物的功能摄食类群以撕食者占据主要优势,为35.9%。冗余分析结果表明,不同月份中影响大型底栖动物功能摄食类群分布的主要环境因子有所差异,其中2月的主要环境影响因子为电导率,7月为温度,9月和11月均为氧化还原电位。基于大型底栖动物的生物指数和Shannon指数的水质评价结果表明,流域内水质整体处于轻污染水平。From November 2021 to September 2022,we conducted four field surveys on macroinvertebrates and water environmental factors in Xinyang section of the Huaihe River main stream.We analyzed the structure and spatiotemporal distribution characteristics of the functional feeding groups of macroinvertebrates,and evaluated river water quality.A total of 73 macroinvertebrate species were collected in the basin,belonging to 42 families,7 classes,and 3 phyla.The dominant species of macroinvertebrates changed significantly in different months,with Exopalaemon modestus being the absolute advantage species in the basin in July and September 2022.In different sampling months,the functional feeding group of macroinvertebrates was mainly dominated by shredders,accounting for 35.9%.The results of redundancy analysis showed that the main environmental factors affecting the distribution of functional feeding groups of macroinvertebrates varied across different months,with conductivity in February,temperature in July,and oxidation-reduction potential in September and November.The evaluation based on the biolo-gical index and Shannon index of macroinvertebrates indicated that water quality in the investigated section was at a light pollution level.

关 键 词：淮河 大型底栖无脊椎动物 功能群 冗余分析 水质生物学评价 

分 类 号：Q178[生物学—水生生物学] X824[生物学—普通生物学]