珠江流域底栖动物资源的宏观格局  

Macro-patterns of Macrozoobenthos Resources in the Pearl River Basin

作　　者：高铁军[1] 彭增辉 王宝强[3] GAO Tie-jun;PENG Zeng-hui;WANG Bao-qiang(Hunan Research Academy of Environmental Sciences,Changsha 410004,China;College of Environment and Ecology,Hunan Agricultural University,Changsha 410128,China;Institute of Hydrobiology,Chinese Academy of Sciences,Wuhan 430072,China)

机构地区：[1]湖南省环境保护科学研究院,长沙410004 [2]湖南农业大学环境与生态学院,长沙410128 [3]中国科学院水生生物研究所,武汉430072

出　　处：《湖南师范大学自然科学学报》2023年第4期106-112,共7页Journal of Natural Science of Hunan Normal University

基　　金：湖南省-国家自然科学基金委区域创新发展联合基金(U21A2009);湖南省重点研发计划项目(2019SK2336,2022SK2088)。

摘　　要：为填补珠江流域大尺度底栖动物研究的空白,本研究通过结合野外调查数据和相关文献资料,系统分析了珠江流域底栖动物的宏观格局。珠江流域共记录底栖动物562种属,隶属于9门14纲41目173科377属,其中节肢动物383种属、环节动物87种属、软体动物86种属。在物种分布格局方面:东江流域和西江流域底栖动物种类分布最多,北江流域底栖动物种类分布最少;环节动物在珠江三角洲分布最多,软体动物和节肢动物均在东江流域分布最多。在现存量分布格局方面:珠江流域底栖动物平均密度为665 ind/m^(2),以节肢动物占优势,而生物量以软体动物占优势,其平均值为69.29 g/m^(2);底栖动物密度:东江流域>西江流域>珠江三角洲>北江流域;底栖动物生物量:西江流域>北江流域>珠江三角洲>东江流域。In order to fill the gap in the study of macrozoobenthos in large-scale in the Pearl River Basin,the macro-patterns of macrozoobenthos in the Pearl River Basin were systematically analyzed based on the field investigations and related literatures.A total of 562 taxa(species/genus)were recorded in the Pearl River Basin,which belonged to 9 phyla,14 classes,41 orders,173 families and 377 genera,including 383 arthropods,87 annelids and 86 molluscs.As for the taxon distribution,Dongjiang River sub-basin and Xijiang River sub-basin had more taxa of macrozoobenthos.Pearl River Delta owned more taxa of annelids,while Dongjiang River sub-basin owned more taxa of molluscs and arthropods.In terms of the standing crops distribution,the average density order of macrozoobenthos in the Pearl River Basin was 665 ind·m^(-2),and arthropods were dominant;while molluscs were dominant in biomass,and the average value was 69.29 g·m^(-2).Regarding the density order of macrozoobenthos:Dongjiang River sub-basin>Xijiang River sub-basin>Pearl River Delta>Beijiang River sub-basin;as to the amount order of biomass of macrozoobenthos:Xijiang River sub-basin>Beijiang River sub-basin>Pearl River Delta>Dongjiang River sub-basin.

关 键 词：宏观格局 底栖动物 生物多样性 现存量 珠江流域 

分 类 号：Q178.2[生物学—水生生物学]