title: Response of free-living marine nematodes to the southern Yellow Sea Cold Water Mass.
abstract: The Yellow Sea Cold Water Mass is a remarkable seasonal hydrographic event in the bottom water of the Yellow Sea. In order to reveal the response of free-living marine nematodes to this event, community structure and biodiversity indices of nematodes were studied in June and November 2013. The dominant species were Dorylaimopsis rabalaisi, Spilophorella sp., Daptonema sp., Sabatieria sp. and Parasphaerolaimus sp. In terms of trophic structure, epigrowth feeders were the most dominant group. Correlation analysis showed that Shannon-Wiener diversity index had significantly negative correlation with sediment silt-clay percentage, organic matter content and water content. Results of BIOENV indicated that sediment phaeophorbide content, water content, bottom water salinity and temperature were the most important factors related to nematode community. In conclusion, community structure and biodiversity indices of nematodes were consistent in the two sampling seasons.
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
authors.forename: Man
authors.initials: M
authors.lastname: Xu
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
authors.forename: Qinghe
authors.initials: Q
authors.lastname: Liu
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
authors.forename: Zhinan
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China. Electronic address: liuxs@ouc.edu.cn.
authors.forename: Xiaoshou
authors.initials: X
authors.lastname: Liu
mesh_terms: D000818:Animals; D044822:Biodiversity; D003080:Cold Temperature; D004784:Environmental Monitoring; D009348:Nematoda / Q000502:physiology*; D012621:Seasons; D012623:Seawater / Q000737:chemistry*
keywords: Biodiversity; Community structure; Free-living marine nematode; Seasonal variations; Trophic structure; Yellow Sea Cold Water Mass