洪泽湖底栖大型无脊椎动物群落结构与水质评价

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES Bulletin of Environmental Contamination and Toxicology Pub Date : 2024-04-09 DOI:10.1007/s00128-024-03877-y
Lixiao Ni, Lin Zhou, Amar Ali Adam Hamad, Chu Xu, Wenlu Sang, Cunhao Du, Yun Nie, Haoyue Li, Jiahui Shi, Shiyin Li
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摘要

本研究调查了2016-2020年洪泽湖底栖大型无脊椎动物的种类、密度、生物量和理化因子。采用冗余分析法(RDA)分析了理化参数与大型底栖动物群落结构之间的关系。采用基于大型无脊椎动物的指数来评价洪泽湖的水质状况。结果表明,共采集到 50 种底栖动物(10 种环口类动物、21 种节肢动物和 19 种软体动物)。底栖大型无脊椎动物的群落结构在时间和空间上存在差异。优势物种为霍夫麦氏沼虾(Limnodrilus hoffmeisteri,L.hoffmeisteri)、蚬(Corbicula fluminea,C.fluminea)、寡鳃蛙(Nephtys oligobranchia,N.oligobranchia)。2016 年,洪泽湖底栖动物以节肢动物为主,如 Grandidierella sp.,而 2017-2020 年则以环形类和软体动物为主,如 L.hoffmeisteri、N.oligobranchia、C.fluminea。城子湖和溧河洼区底栖动物种类相对丰富且变化较小,而穿越水域底栖大型无脊椎动物种类较少且变化较大。RDA 显示,底栖大型无脊椎动物结构的变化与溶解氧(DO)、pH 值(Pondus Hydrogenii)和透明度(SD)显著相关。Shannon Wiener 指数、Pielou 指数和 Margalef 指数表明洪泽湖目前处于中度污染状态。今后的研究应侧重于各种理化指标和其他环境因素对底栖生物群落的综合影响。
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Community Structure and Water Quality Assessment of Benthic Macroinvertebrates in Hongze Lake

This study investigated the species, density, biomass and physicochemical factors of benthic macroinvertebrates in Hongze Lake from 2016 to 2020. Redundancy analysis (RDA) was used to analyze the relationship between physicochemical parameters and the community structure of macroinvertebrates. Macroinvertebrate-based indices were used to evaluate the water quality conditions in Hongze Lake. The results showed that a total of 50 benthic species (10 annelids, 21 arthropods and 19 mollusks) were collected. The community structure of benthic macroinvertebrates varied in time and space. The dominant species were Limnodrilus hoffmeisteri (L.hoffmeisteri), Corbicula fluminea (C.fluminea), Nephtys oligobranchia (N.oligobranchia). In 2016, arthropods such as Grandidierella sp. were the dominant species of benthos in Hongze Lake while annelids and mollusks dominated from 2017 to 2020, such as L.hoffmeisteri, N.oligobranchia, C.fluminea. The benthic fauna of Chengzi Lake and Lihewa District were relatively abundant and showed slight variation, while the benthic macroinvertebrates of the Crossing the water area were few and varied greatly. RDA showed that changes in benthic macroinvertebrate structure were significantly correlated with dissolved oxygen (DO), Pondus Hydrogenii (pH) and transparency (SD). The Shannon Wiener, Pielou, and Margalef indices indicate that Hongze Lake is currently in a moderately polluted state. Future studies should focus on the combined effects of various physicochemical indicators and other environmental factors on benthic communities.

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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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