渤海灣春、夏、秋浮游動物群落時空變化特征

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中圖分類號： Q958.8 文獻標志碼：A 文章編號：1004-6755（2025）07—0006—07

DOI：10.3969/j.issn.1004-6755.2025.07.001

Spatiotemporal variation characteristics of the zooplankton community in Bohai Bay during Spring，Summer and Autumn

ZHANG Bolun 1，2 ， ZENG Xiangxi1，2， ZHENG Debin1，2，HOU Chunqiang1，2 ， WANG Shuo1，2， ZHANG Nan12，LI Bing3 （1.Tianjin Fisheries Research Institute，Tianjin 30o221，China；2.Tianjin MarineRanch TechnologyEnginering Center， Tianjin 3oo221，China；3．Tianjin Agricultural Development Service Center，Tianjin 30o61，China）

Abstract：To investigate the spatiotemporal distribution of the zooplankton community in Bohai Bay，a survey was conducted on zooplankton community characteristics in the coastal waters of Bohai Bay during spring（May），summer （August） and autumn （October） of 2O17. The results revealed significant seasonal variations in species composition，biomass，and other ecological features of the zooplankton. A total of 32 zooplankton species from 5 taxonomic groups were identified in this survey， including 12 species of copepods，11 species of larvae，5 species of cnidarians，3 species of amphipods， and1 species of chaetognaths. The species richness exhibited distinct seasonal variation，with the highest number of species recorded in spring（23 species），followed by autumn （18 species）and summer （16 species）. The abundance and biomass of zooplankton followed a distinct seasonal gradient ： spring（abundance 72ind./m3±88ind./m3 and biomass 390mg±503mg） ，summer（abundance 19 ind. /m3±20 ind. / and biomass 177mg±266mg） ，autumn（abundance 7 ind./ ?m3±6 ind./ ′m3 and biomass 7mg±6mg .The abundance and biomass of zooplankton exhibited significant spatial variability across sampling stations，distribution pattern. Seasonal differences in zooplankton diversity indices were also pronounced：Shannon-Wiener diversity index （ H′） ）and species richness index （D ）followed the order：

spring > summer > autumn;evenness index（J） showed an inverse seasonal trend： autumn > summer > spring.

Key words：zooplankton; abundance; diversity index; seasonal variation; Bohai Bay

渤海灣屬于渤海三大海灣之一，是一個典型的半封閉性海灣，是許多經濟魚蝦類的產卵場和索餌場，對黃渤海的漁業(yè)經濟意義重大 [1-2] 。（剩余4754字）