University of Tasmania
Browse

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, D
The 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 Journal

Volume

25

Pagination

319-326

ISSN

1520-4081

Department/School

Institute for Marine and Antarctic Studies

Publisher

John Wiley & Sons Inc

Place of publication

111 River St, Hoboken, USA, Nj, 07030

Rights statement

Copyright 2009 Wiley Periodicals, Inc.

Repository Status

  • Restricted

Socio-economic Objectives

Aquaculture fin fish (excl. tuna)

Usage metrics

    University Of Tasmania

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC