Changes in plasma and gonadal steroid hormones in relation to the reproductive cycle and the sex inversion process in the protandrous seabass, Lates calcarifer.
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TLDR
For example, in a recent study as mentioned in this paper, the gonadal levels of several gonadal steroids (testosterone, 11-ketotestosterone, androstenedione, 17β-estradiol, and estrone) were measured by RIA in the Protandrous seabass, Lates calcarifer, throughout an annual reproductive cycle.About:
This article is published in General and Comparative Endocrinology.The article was published on 1993-12-01 and is currently open access. It has received 70 citations till now. The article focuses on the topics: Estrone.read more
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Sex determination and sex differentiation in fish: an overview of genetic, physiological, and environmental influences
TL;DR: The lability of sex-determination systems in fish makes some species sensitive to environmental pollutants capable of mimicking or disrupting sex hormone actions, and such observations provide important insight into potential impacts from endocrine disruptors, and can provide useful monitoring tools for impacts on aquatic environments.
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Androgens in teleost fishes
TL;DR: 11-Oxygenated androgens are generally more effective than T in stimulating secondary sexual characters, reproductive behaviour and spermatogenesis in teleost fishes but receptor-like binding has only reported for T and not for 11KT.
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Ovarian aromatase and estrogens: A pivotal role for gonadal sex differentiation and sex change in fish
TL;DR: A broader hypothesis is extended that would place estrogens and Cyp19a1a in a pivotal position to control not only ovarian, but also testicular differentiation, in both gonochoristic and hermaphrodite fish species.
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Endocrine and environmental aspects of sex differentiation in fish
TL;DR: Although steroids and steroidogenic enzymes are probably not the initial triggers of sex differentiation, new data, including molecular approaches, have confirmed that they are key physiological steps in the regulation of this process.
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Social modulation of androgen levels in male teleost fish.
TL;DR: The causal link between social status, territoriality and elevated androgen levels and the available evidence suggests that the social environment indeed modulates the endocrine axis of teleosts.