Journal of East China Normal University(Natural Sc ›› 2015, Vol. 2015 ›› Issue (2): 98-105.doi: 10.3969/j.issn.10005641.2015.02.012

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Bioassay for toxicity of water and sediment in Longhong Ravine and Beili Lake in West Lake, Hangzhou

YANG Yong-sheng1,2,LIU Meng-yun1,2,HUANG Min-sheng1,2,HE De-fu1,2   

  1. 1. School of Ecological and Environmental Sciences, East China Normal University, Shanghai200241, China;
    2. Shanghai Key Lab for Urban Ecological Processes and EcoRestoration, East China Normal University, Shanghai200241, China
  • Received:2014-09-12 Online:2015-03-25 Published:2015-05-28

Abstract: Using Vibrio Qinghaiensi, Caenorhabditis elegans and Xenopus tropicalis embryos, the potential toxicity of Longhong Ravine and Beili Lake were respectively detected. Results showed that water and sediments from Longhong Ravine and Beili Lake were not toxic to the three organisms. On the contrary, some samples showed positive effects, for example, enhanced luminous intensity 〖JP〗of Vibrio Qinghaiensis and promoted the growth of Xenopus tropicalis embryos. A small number of samples caused slight teratogenic effects on  Xenopus embryos, which were likely related to accidental discharges of pollutants. Our results suggested that Longhong Ravine and Beili Lake present relatively low ecological risks, which indicated high biological safety in West Lake.

Key words: biotoxicity, Vibrio Qinghaiensis, Caenorhabditis elegans, Xenopus tropicalis, West Lake

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