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Toxic effect of the harmful dinoflagellate Cochlodinium polykrikoides on the spotted rose snapper Lutjanus guttatus
10.1002/tox.20507.abs
The dinoflagellate Cochlodinium polykrikoides isolated from Bahía de La Paz, Gulf of California, showed an important short‐term toxic effect on the spotted rose snapper Lutjanus guttatus. This microalga was able to decrease fish liver catalase activity and lipid peroxidation. Fish exposed to live dinoflagellates developed an abnormal mucus secretion on the gills that was directly related to algal cell concentration. Hepatic catalase inhibition and an increase in mucus secretion on the gills occurred when fish were exposed to 2 × 106 cells L–1 of C. polykrikoides. Lipid peroxidation was significantly different at 4 × 106 cells L–1 and the hepatosomatic index decreased at 3 × 106 cells L–1. Our results suggest that oxidative stress contributes, at least in part, to the ichthyotoxic effect of C. polykrikoides from the Gulf of California. © 2009 Wiley Periodicals, Inc. Environ Toxicol 25: 319–326, 2010.
Toxic effect of the harmful dinoflagellate Cochlodinium polykrikoides on the spotted rose snapper Lutjanus guttatus
10.1002/tox.20507.abs
The dinoflagellate Cochlodinium polykrikoides isolated from Bahía de La Paz, Gulf of California, showed an important short‐term toxic effect on the spotted rose snapper Lutjanus guttatus. This microalga was able to decrease fish liver catalase activity and lipid peroxidation. Fish exposed to live dinoflagellates developed an abnormal mucus secretion on the gills that was directly related to algal cell concentration. Hepatic catalase inhibition and an increase in mucus secretion on the gills occurred when fish were exposed to 2 × 106 cells L–1 of C. polykrikoides. Lipid peroxidation was significantly different at 4 × 106 cells L–1 and the hepatosomatic index decreased at 3 × 106 cells L–1. Our results suggest that oxidative stress contributes, at least in part, to the ichthyotoxic effect of C. polykrikoides from the Gulf of California. © 2009 Wiley Periodicals, Inc. Environ Toxicol 25: 319–326, 2010.
Toxic effect of the harmful dinoflagellate Cochlodinium polykrikoides on the spotted rose snapper Lutjanus guttatus
Dorantes‐Aranda, Juan José (author) / García‐de la Parra, Luz María (author) / Alonso‐Rodríguez, Rosalba (author) / Morquecho, Lourdes (author) / Voltolina, Domenico (author)
Environmental Toxicology ; 25 ; 319-326
2010-08-01
8 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2011