广西科学2016，Vol.23Issue(4)：325-330,6.DOI:10.13656/j.cnki.gxkx.20160913.005
2015年冬季钦州湾浮游动物死体对海洋生态系统的影响
Effects of Zooplankton Carcasses in Qinzhou Bay During Winter 20 1 5 on Marine Ecosystem
摘要
Abstract
[Objective]This study was conducted to assess the amount of zooplankton carcass in coastal areas of Guangxi and its possible effects on marine ecosystem.[Methods]During winter 2015,vertical trawl was conducted in 6 stations for zooplankton collection in Qinzhou Bay.The neutral red staining method was used to distinguished carcass and living zooplankton in order to uncover the composition and distribution of zooplankton carcass,and their effects on the abun-dance,dominant degree and diversity index (Shannon-Weaver index).[Results]The zooplankton carcasses contributed 24.5% of total abundance of zooplankton,and reached 2 252 ind./m3 in average during the investigation.A total of 3 1 species (larvae)was identified in this study,and among them the carcasses were found in 1 5 species (larvae).Once the live dominant species (larvae)were found in one station,then the appearance of the specific carcass in this station was 100 percent chance except for Parvocalanus crassirostris.Meanwhile the appearance of carcasses increased the diversity index and narrowed the difference of diversity index among stations.[Conclusion]About a quarter of total zooplankton was carcasses in Qinzhou Bay during winter.And the existence of carcasses in the zooplankton samples will mislead our understanding of zooplankton abundance and di-versity.Thus,we should pay more attention to zooplankton carcasses.关键词
浮游动物/桡足类/死体/冬季/钦州湾Key words
zooplankton/copepods/carcasses/winter/Qinzhou Bay分类
海洋科学引用本文复制引用
陆家昌,姜发军,许铭本,赖俊翔,覃仙玲..2015年冬季钦州湾浮游动物死体对海洋生态系统的影响[J].广西科学,2016,23(4):325-330,6.基金项目
广西近海海洋环境科学重点实验室开放基金项目（GXKLHY15-07）资助。 （）
