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深圳湾福田红树林湿地小型底栖动物群落结构及海洋线虫新纪录种
引用本文:朱慧兰,刘梦迪,周宇鸿,郭玉清.深圳湾福田红树林湿地小型底栖动物群落结构及海洋线虫新纪录种[J].生态学杂志,2020(6):1806-1812.
作者姓名:朱慧兰  刘梦迪  周宇鸿  郭玉清
作者单位:集美大学水产学院
基金项目:国家自然科学基金项目(31772416);福建省自然基金项目(2017J01450)资助。
摘    要:于2018年冬季在福田红树林湿地设置4个采样断面进行沉积物样品采集,对小型底栖动物的类群组成、丰度及自由生活海洋线虫的优势属等进行分析。结果表明:共鉴定出4个以上的小型底栖动物类群,分别为海洋线虫、桡足类、多毛类、寡毛类和其他未鉴定类群,海洋线虫为最优势类群,占小型底栖动物丰度的97.28%;小型底栖动物平均丰度为(490.73±465.09) ind·10 cm^-2;共鉴定出海洋线虫隶属于30属17科,其优势属(优势度≥5%) Paracanthonchus、Megadesmolaimus、Subsphaerolaimus、Terschellingia、Spinonema、Pseudochromadora和Pseudolella;发现新纪录种-大亚囊咽线虫Subsphaerolaimus major Nguyen&Gagarin,2009,并对其进行了测量及描述,并比较了其与模式种的主要差异。

关 键 词:红树林湿地  小型底栖动物  丰度  优势属  大亚囊咽线虫

Meiofauna community structure and marine nematode(a new record)in Futian mangrove wetland of Shenzhen Bay,Guangdong Province
ZHU Hui-lan,LIU Meng-di,ZHOU Yu-hong,GUO Yu-qing.Meiofauna community structure and marine nematode(a new record)in Futian mangrove wetland of Shenzhen Bay,Guangdong Province[J].Chinese Journal of Ecology,2020(6):1806-1812.
Authors:ZHU Hui-lan  LIU Meng-di  ZHOU Yu-hong  GUO Yu-qing
Institution:(Fisheries College,Jimei University,Xiamen 361021,Fujian,China)
Abstract:To clarify the composition and abundance of meiofauna,and dominant genera of freeliving marine nematodes,sediments were collected from Futian mangrove wetland in Shenzhen bay in the winter of 2018.The results showed that more than four meiofauna groups were recorded in the study area,including free-living marine Nematode,Copepoda,Polychaeta,Oligochaeta and unidentified groups.Marine nematode was the most dominant group,accounting for 97.28%of the total abundance.The mean abundance of meiofauna was 490.73±465.09 ind·10 cm^-2.In total,30 genera and 17 families of marine nematodes were identified from all the sampling sites.Dominant genera of marine nematode with dominance≥5%were Paracanthonchus,Megadesmolaimus,Subsphaerolaimus,Terschellingia,Spinonema,Pseudochromadora and Pseudolella.Subsphaerolaimus major Nguyen&Gagarin,2009,a new record of free-living marine nematode species was measured and described.The main differences between the new record species and model species were compared.
Keywords:mangrove wetland  meiofauna  abundance  dominant genera  Subsphaerolaimus major Nguyen&Gagarin  2009
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