Community structure characteristics of macrozooplankton in the sea area near Dagu River Estuary of Jiaozhou Bay in summer and autumn
In order to know the ecological status of macrozooplankton in the sea area near Dagu River Estuary of Jiaozhou Bay,based on the investigation data in June(summer)of 2021 and September(autumn)of 2022,the community structure of macrozooplankton were analyzed.As result,a tolal of 20 species and 11 taxa of zooplankton larva,including 16 species and 11 taxa of zooplankton larva in summer and 10 species and 5 taxa of zooplankton larva in autumn,were recorded.The macrozooplankton average density was 184.6 ind/m3 in summer and 221.3 ind/m3 in autumn,the average biomass(wet weight)in summer was 8 220.1 mg/m3 and 860.0 mg/m3 in autumn,the average Shannon index(H')were 2.76 in summer and 2.64 in autumn,respectively.In summer,dominant species were Malagazzia carolinae,Eucheilota menoni,Proboscidactyla flavicirrata,Acartia pacifica,Macrura larva,Polychaeta larva,Porcellana Zoea larva,Brachyura Zoea larva,while in autumn they were Malagazzia carolinae,Eucheilota menoni,Proboscidactyla flavicirrata,Pleurobrachia globosa,Obelia spp.,Aidanosagitta crassa,Porcellana Zoea larva,Gastropoda larva.Cluster analysis showed that the macrozooplankton in the investigation area can be divided into two groups.This article can provide important reference data for the evolution of macrozooplankton in the sea area near Dagu River Estuary.
Dagu River Estuarymacrozooplanktoncommunity structuredominant species
万方数据
维普
