Multigeneration assessment of nonylphenol and endosulfan using a model Australian freshwater fish, Melanotaenia fluviatilis

Holdway, D and Smith, A 2008, 'Multigeneration assessment of nonylphenol and endosulfan using a model Australian freshwater fish, Melanotaenia fluviatilis', Environmental Toxicology, vol. 23, no. 2, pp. 253-262.


Document type: Journal Article
Collection: Journal Articles

Title Multigeneration assessment of nonylphenol and endosulfan using a model Australian freshwater fish, Melanotaenia fluviatilis
Author(s) Holdway, D
Smith, A
Year 2008
Journal name Environmental Toxicology
Volume number 23
Issue number 2
Start page 253
End page 262
Total pages 10
Publisher John Wiley and Sons
Abstract Changes over two generations in offspring and reproductive ability were recorded in crimson-spotted rainbowfish (Melanotaenia fluviatilis), a model Australasian freshwater fish, following a 24 h exposure to nominal nonylphenol concentrations of 50, 100, 500, 1000, 2250, and 5000 g/L and following a 4 h exposure to nominal endosulfan concentrations of 1.0, 5.0, 10, 22, 33, and 50 g/L. There were also four replicated control treatments: control 1 and 2 and solvent control 1 and 2, as well as positive female and male controls: 1 g/L estradiol 1 and 2 and 1 g/L testosterone 1 and 2. Results suggested that there may be some parental transfer of toxicants to embryos even over this short exposure period. Fertility of M. fluviatilis was reduced by a 24 h pulse exposure of adults to 100 g/L nonylphenol and a 4 h exposure to 1.0 g/L endosulfan. Hatch rates were significantly reduced after exposure to nonylphenol, endosulfan, and estradiol control but not in solvent controls and testosterone control. Significant correlations were found between reproductive and physiological parameters for nonylphenol and endosulfan exposed F0 adult rainbowfish. The major reproductive effects were on hatchability of the F1 generation and the gonadosomatic indices of male F1. The respective nominal NOEC and LOEC's for nonylphenol were 50 and 100 g/L, and for endosulfan were <1.0 and 1 g/L. These observed effects have the potential to significantly impact exposed rainbowfish populations through the observed 45% reduction of hatchability and thus larval production. © 2008 Wiley Periodicals, Inc. Environ Toxicol, 2008.
Subject Environmental Monitoring
Keyword(s) nonylphenol
endosulfan
reproductive toxicity
multigeneratin
rainbowfish
Melanotawnis fluviatilis
NOEC
LOEC
chronic
hatchability
DOI - identifier 10.1002/tox.20329
Copyright notice Copyright © 2009 Wiley Periodicals, Inc., A Wiley Company
ISSN 1520-4081
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