File(s) under permanent embargo
Toxic effect of the harmful dinoflagellate Cochlodinium polykrikoides on the spotted rose snapper Lutjanus guttatus
journal contribution
posted on 2023-05-18, 00:59 authored by Dorantes Aranda, JJ, Garcia-de la Parra, LM, Alonso-Rodriguez, R, Morquecho, L, Voltolina, DThe dinoflagellate Cochlodinium polykrikoides isolated from Bahı´a 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 3 106 cells L–1 of C. polykrikoides. Lipid peroxidation was significantly different at 4 3 106 cells L–1 and the hepatosomatic index decreased at 3 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.
History
Publication title
Environmental Toxicology: An International JournalVolume
25Pagination
319-326ISSN
1520-4081Department/School
Institute for Marine and Antarctic StudiesPublisher
John Wiley & Sons IncPlace of publication
111 River St, Hoboken, USA, Nj, 07030Rights statement
Copyright 2009 Wiley Periodicals, Inc.Repository Status
- Restricted