Journal
HARMFUL ALGAE
Volume 55, Issue -, Pages 66-76Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hal.2016.02.007
Keywords
Cyprinus carpio; Cyanobacterial bloom; Microcystin; Nodularin; Saxitoxin
Categories
Funding
- Ministry of Education, Science and Technological Development of the Serbian Government [176020]
- COST Action ES1105 CYANOCOST Cyanobacterial blooms and toxins in water resources: Occurrence, impacts and management
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Cyanobacteria can produce toxic metabolites known as cyanotoxins. Common and frequently investigated cyanotoxins include microcystins (MCs), nodularin (NOD) and saxitoxins (STXs). During the summer of 2011 extensive cyanobacterial growth was found in several fishponds in Serbia. Sampling of the water and fish (common carp, Cyprinus carpio) was performed. Water samples from 13 fishponds were found to contain saxitoxin, microcystin, and/or nodularin. LC-MS/MS showed that MC-RR was present in samples of fish muscle tissue. Histopathological analyses of fish grown in fishponds with cyanotoxin production showed histopathological damage to liver, kidney, gills, intestines and muscle tissues. This study is among the first so far to report severe hyperplasia of intestinal epithelium and severe degeneration of muscle tissue of fish after cyanobacterial exposure. These findings emphasize the importance of cyanobacterial and cyanotoxin monitoring in fishponds in order to recognize cyanotoxins and their potential effects on fish used for human consumption and, further, on human health. (C) 2016 Elsevier B.V. All rights reserved.
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