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Monthly variations in the profile of sex steroids and gonadal development of brook trout (Salvelinus fontinalis Mitchill) during puberty in Tasmania

Citation

Fatima, S and Adams, M and Wilkinson, R, Monthly variations in the profile of sex steroids and gonadal development of brook trout (Salvelinus fontinalis Mitchill) during puberty in Tasmania, Australian Journal of Zoology, 62, (3) pp. 200-205. ISSN 0004-959X (2014) [Refereed Article]

Copyright Statement

Copyright 2014 CSIRO

DOI: doi:10.1071/ZO13067

Abstract

Puberty is an important reproductive event that has not been studied in brook trout in the Southern Hemisphere. The present study describes the histological development of gonads and variations in the levels of oestradiol-17β (E2), testosterone (T) and 11-ketotestosterone (11-KT) during the first year of male and female brook trout. The study started when the trout were at an age of 8 months (n=10) and continued until they were 15 months. Of the males, 60% attained puberty at an age of 14 months. The peak of the gonadosomatic index in males was observed at 15 months of age (3.00.9%). Female fish did not achieve maturation during their first year and ovarian development did not progress beyond the vesicular oocyte stage within the study period.

Item Details

Item Type:Refereed Article
Keywords:maturation
Research Division:Biological Sciences
Research Group:Zoology
Research Field:Animal Developmental and Reproductive Biology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Biological Sciences
Author:Fatima, S (Miss Shafaq Fatima)
Author:Adams, M (Dr Mark Adams)
Author:Wilkinson, R (Dr Ryan Wilkinson)
ID Code:98884
Year Published:2014
Deposited By:Sustainable Marine Research Collaboration
Deposited On:2015-03-05
Last Modified:2017-10-31
Downloads:0

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