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Updated: Jun 9, 2026
03:50
Effectiveness of the Air Stripping in Two Salmonid Fish, Rainbow Trout (Oncorhynchus Mykiss) and Brown Trout (Salmo Trutta Morpha fario)
Published on: September 16, 2018
Temperature and salmonid reproduction: implications for aquaculture
1Australian Rivers Institute, Griffith University, Gold Coast, Queensland 4222, Australia. n.pankhurst@griffith.edu.au
Journal of Fish Biology
|August 27, 2010
Summary
Climate change-induced warming negatively impacts fish reproduction by disrupting endocrine function and gamete viability. Elevated temperatures impair reproductive processes in species like Atlantic salmon, necessitating adaptive strategies for aquaculture and conservation.
Area of Science:
- Aquatic biology
- Climate change impacts
- Reproductive endocrinology
Background:
- Rising water temperatures due to climate change pose a significant threat to fish reproduction.
- Environmental temperature fluctuations affect endocrine function, influencing gametogenesis and maturation.
Purpose of the Study:
- To investigate the deleterious effects of elevated water temperatures on fish reproductive processes.
- To explore potential adaptive strategies for managing temperature impacts in aquaculture and wild stocks.
Main Methods:
- Review of existing studies on temperature effects on fish reproduction, primarily in Atlantic salmon (Salmo salar).
- Examination of impacts on gonadal steroid synthesis, vitellogenin production, and estrogen receptor dynamics.
- Observation of effects on gametogenesis, maturation, and spermiation in various fish species.
Main Results:
- Elevated temperatures impair steroidogenesis and vitellogenin production in Atlantic salmon, reducing maternal investment and gamete viability.
- High temperatures delay or inhibit crucial maturational shifts in steroid production.
- Reproductive development in female rainbow trout and Arctic charr is negatively affected; male spermiation can be inhibited.
Conclusions:
- Climate change-induced warming presents substantial challenges to fish reproductive success, affecting both wild and domesticated populations.
- Aquaculture requires adaptive strategies, such as thermal environment management and potential endocrine therapies, to maintain productivity.
- Further research is needed to explore hormone therapy's potential to protect gametogenesis from temperature stress.
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