Nodularin and cylindrospermopsin : a review of their effects on fish

Sotton, Benoît (INRA-UMR CARRTEK, Thonon-les-Bains, France) ; Domaizon, Isabelle (INRA-UMR CARRTEK, Thonon-les-Bains, France) ; Anneville, Orlane (INRA-UMR CARRTEK, Thonon-les-Bains, France) ; Cattanéo, Franck (School of Engineering, Architecture and Landscape (hepia), HES-SO // University of Applied Sciences Western Switzerland) ; Guillard, Jean (INRA-UMR CARRTEK, Thonon-les-Bains, France)

Nodularin (NOD) and cylindrospermopsin (CYN) are hepatotoxic cyanotoxins that are present in numerous ecosystems where bloom episodes occur. In this review, the different effects of both of these cyanotoxins on the different ontogenic stages of various fish species were summarised to clarify the state-of-the-art scientific knowledge on this topic. It is clear that fish that are exposed to NOD and CYN were negatively impacted in every studied ontogenic stage. Indeed, these cyanotoxins can accumulate in various organs of fish, leading to deleterious effects on the physiology. This review highlights the fact that all of the previously published studies on the topic have focused only on the short-term effects of a given cyanotoxin on fish. However, during cyanobacterial blooms, fish can be exposed chronically to a variety of toxic compounds with which the fish interact, leading to stronger effects than those observed with a single toxin tested over a short timeframe. Thus, it is essential to conduct additional studies to better understand the actual toxic effects of cyanobacterial blooms on fish populations over medium- and long-term time scales.


Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEPIA - Genève
Institute:
inTNE - Institut Terre-Nature-Environnement
Date:
2014-08
Pagination:
19 p.
Published in:
Reviews in Fish Biology and Fisheries
Numeration (vol. no.):
2015, vol. 25, pp. 1-19
DOI:
ISSN:
0960-3166
Appears in Collection:

Note: The status of this file is: restricted


 Record created 2020-08-13, last modified 2020-10-27

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