期刊
ENVIRONMENTAL TOXICOLOGY
卷 26, 期 5, 页码 566-570出版社
WILEY-BLACKWELL
DOI: 10.1002/tox.20577
关键词
cyanobacteria; microcystins; Microcystis; Gomphosphaeria; Dreissena polymorpha; HPLC-MS/MS
资金
- N.I. Water Service and DEL
We report the results of a synoptic survey at 14 sites across the north of Ireland undertaken to determine the occurrence of cyanobacteria and their constituent microcystin cyanotoxins. Seven microcystin toxins were tested for, and five of which were found, with MC-LR, MC-RR, and MC-YR being the most prevalent. Gomphosphaeria spp and Microcystis aeruginosa were the most dominant cyanobacterial species encountered. Together with Aphanizomenon flos-aquae, these were the cyanobacteria associated with the highest microcystin concentrations. The occurrence of several microcystin toxins indicates that there may potentially be more than one cyanobacteria species producing microcystins at many sites. Total microcystin concentrations varied over three orders of magnitude dividing the sites into two groups of high (> 1000 ngMC/mu gChla, six sites) or low toxicity (< 200 ngMC/mu gChla, eight sites). (C) 2010 Wiley Periodicals, Inc. Environ Toxicol 26: 566-570, 2011.
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