Main Article Content
Sex change occurs as a usual part of the life cycle for many ray-finned fish, often following specific social cues. It has been shown that environmental factors can interact with, and sometimes override,
genetic factors to control sexual development. More dramatically, in many marine fish, individuals can change sex as an adaptive response to environmental changes even during adulthood. Such sensitivity to environmental stimuli may explain why teleost or bony fishes display such highly diverse sex determination and developmental systems, which make them good models for understanding vertebrate sexual development. The exact mechanism behind the transduction of the environmental signals into the molecular cascade that underlies this singular transformation remains largely unknown. Cortisol is the main glucocorticoid in fish and the hormone most directly associated with stress. However, the exact role of cortisol or stress in transducing the external signals to elicit physiological responses during sexual development and sex change remains a mystery.
Authors should note that in the spirit of open access to research Junctures is published under a New Zealand cc-by-nc-nd licence.
This licence is the most stringent cc-by licence currently available that means that people are free to read and redistribute the article but only with full acknowledgement of the author and the source. Although this licence does allow sharing of research, it does not allow any forms of commercial distribution. For more on cc licencing please see: http://www.creativecommons.org.nz/licences_explained__1 If you require your work to be published under a different licence please contact the Junctures Editorial Assistant.