Temperature-induced sex reversal is not responsible for sex-ratio distortions in grayling Thymallus thymallus or brown trout Salmo trutta

M Pompini; A M Buser; M R Thali; B A Von Siebenthal; S Nusslé; S Guduff; C Wedekind

doi:10.1111/jfb.12174

Temperature-induced sex reversal is not responsible for sex-ratio distortions in grayling Thymallus thymallus or brown trout Salmo trutta

J Fish Biol. 2013 Aug;83(2):404-11. doi: 10.1111/jfb.12174.

Authors

M Pompini¹, A M Buser, M R Thali, B A Von Siebenthal, S Nusslé, S Guduff, C Wedekind

Affiliation

¹ Department of Ecology and Evolution, University of Lausanne, Biophore, 1015 Lausanne, Switzerland.

PMID: 23902314
DOI: 10.1111/jfb.12174

Abstract

On the basis of the experiments carried out over various years, it was concluded that (1) grayling Thymallus thymallus and brown trout Salmo trutta are resistant to temperature-induced sex reversal at ecologically relevant temperatures, (2) environmental sex reversal is unlikely to cause the persistent sex ratio distortion observed in at least one of the study populations and (3) sex-specific tolerance of temperature-related stress may be the cause of distorted sex ratios in populations of T. thymallus or S. trutta.

Keywords: climate change; environmental sex reversal; salmonid.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Female
Male
Salmonidae / physiology*
Sex Determination Processes*
Sex Ratio*
Sexual Behavior, Animal
Temperature*
Trout / physiology*