title: Preliminary study on responses of marine nematode community to crude oil contamination in intertidal zone of Bathing Beach, Dalian.
abstract: This study investigated the responses of marine nematodes to crude oil contamination in polluted and relatively uncontaminated sites in Dalian Xingang, China, 40 days after an oil spill. Samples were taken at different tide levels on the beach and at different positions along the beach. We present the results of a comparison of nematode assemblages from undisturbed sediment from the Xiajiahezi Bathing Beach with those from sediment from the Xinghai Bathing Beach contaminated with crude oil. A total of 1666 nematodes from 26 genera were found in this study. Results showed significant differences in nematode assemblages between samples from undisturbed controls and those from the polluted area. Nematode abundance, number of species, diversity and species richness decreased significantly with increasing levels of crude oil contamination. Fifteen genera were eliminated and seemed to be composed of species intolerant to crude oil contamination; only the abundance of Marylynnia sp. increased slightly.
authors: Department of Environmental Science, School of Life Science, Liaoning Normal University, No. 850 Huanghe Road, Shahekou Districk, Dalian, Liaoning 116000, China. mandy19851117@yahoo.cn
authors: Ying
authors: Y
authors: Lv
authors: Weidong
authors: W
authors: Zhang
authors: Yan
authors: Y
authors: Gao
authors: Shuxiang
authors: S
authors: Ning
authors: Bo
authors: B
authors: Yang
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001493:Bathing Beaches; D058448:Biota; D002681:China; D019015:Geologic Sediments / Q000737:chemistry; D009348:Nematoda / Q000145:classification / Q000187:drug effects* / Q000502:physiology; D010578:Petroleum / Q000633:toxicity*; D059392:Petroleum Pollution; D011156:Population Density; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D010578:Petroleum; D014874:Water Pollutants, Chemical