Temperature and salmonid reproduction: implications for aquaculture
2010/01/01 by N. W. Pankhurst, H. R. King, H.R. King · 30 citations
Biochemistry, Genetics and Molecular Biology · Environmental Science · Agricultural and Biological Sciences · #Reproductive biology and impacts on aquatic species #Fish Ecology and Management Studies #Aquaculture Nutrition and Growth
paper · pdf · doi:10.1111/j.1095-8649.2009.02484.x
Abstract
Fish reproduction is likely to be affected by increasing water temperatures arising from climate change. Normal changes in environmental temperature have the capacity to affect endocrine function and either advance or retard gametogenesis and maturation, but above-normal temperatures have deleterious effects on reproductive processes. In Atlantic salmon Salmo salar, exposure to elevated temperature during gametogenesis impairs both gonadal steroid synthesis and hepatic vitellogenin production, alters hepatic oestrogen receptor dynamics and ultimately results in reduced maternal investment and gamete viability. Exposure to high temperature during the maturational phase impairs gonadal steroidogenesis, delaying or inhibiting the preovulatory shift from androgen to maturation-inducing steroid production. There are also deleterious effects on reproductive development of female broodstock of rainbow trout Oncorhynchus mykiss and Arctic charr Salvelinus alpinus when they are exposed to elevated temperature. Less is known about temperature effects on male fishes but inhibition of spermiation has been observed in S. salar and O. mykiss. Among wild stocks, the response to elevated temperature will involve behavioural thermoregulation with consequent change in geographical ranges and the possibility of local extinctions in some regions. For domesticated stocks, containment in the culture environment precludes behavioural thermoregulation and aquaculturists will be required to develop adaptive strategies in order to maintain productivity. The most direct strategy is to manage the thermal environment using one or more of a range of developing aquaculture technologies. Alternatively, there is potential to mitigate the effects of elevated temperature on reproductive processes through endocrine therapies designed to augment or restore natural endocrine function. Studies largely on S. salar have demonstrated the capacity for synthetic luteinizing hormone-releasing hormone to offset the inhibitory effects of elevated temperature on maturational events in both sexes, but the potential for hormone therapy to provide protection during gametogenesis is still largely unexplored.
Cited by
- Effects of an unprecedented summer heatwave on the growth performance, flesh colour and plasma biochemistry of marine cage-farmed Atlantic salmon (Salmo salar)
- Insights into thermal sensitivity: Effects of elevated temperature on growth, metabolic rate, and stress responses in Atlantic wolffish (Anarhichas lupus)
- Responses of aquaculture fish to climate change‐induced extreme temperatures: A review
- Effects of water temperature and feeding time on growth performance and physiological parameters of Piaractus brachypomus juveniles
- Expanding the European water Framework Directive indicators to address long-term climate change impacts on lakes using mechanistic lake models
- Reproductive acclimation to increased water temperature in a tropical reef fish. [europepmc]
- Transgenerational plasticity of reproduction depends on rate of warming across generations. [europepmc]
- Effects of GnRHa treatment during vitellogenesis on the reproductive physiology of thermally challenged female Atlantic salmon ( Salmo salar ). [europepmc]
- Estrogen therapy offsets thermal impairment of vitellogenesis, but not zonagenesis, in maiden spawning female Atlantic salmon ( Salmo salar ). [europepmc]
- Deep Transcriptomic Analysis of Black Rockfish (Sebastes schlegelii) Provides New Insights on Responses to Acute Temperature Stress. [europepmc]
- Autonomous adaptation to climate-driven change in marine biodiversity in a global marine hotspot. [europepmc]
- Ultrasound as a noninvasive tool for monitoring reproductive physiology in male Atlantic salmon (Salmo salar). [europepmc]
- Antioxidative Defense and Fertility Rate in the Assessment of Reprotoxicity Risk Posed by Global Warming. [europepmc]
- Thermal heterogeneity, migration, and consequences for spawning potential of female bull trout in a river-reservoir system. [europepmc]
- Multigenerational exposure to warming and fishing causes recruitment collapse, but size diversity and periodic cooling can aid recovery. [europepmc]
- Different life stage, different risks: Thermal performance across the life cycle of Salmo trutta and Salmo salar in the face of climate change. [europepmc]
- Deploying new generation sequencing for the study of flesh color depletion in Atlantic Salmon (Salmo salar). [europepmc]
- Early warming stress on rainbow trout juveniles impairs male reproduction but contrastingly elicits intergenerational thermotolerance. [europepmc]
- Ambient temperature as a factor contributing to the developmental divergence in sympatric salmonids. [europepmc]
- The Effect of Temperature on Gonadal Sex Differentiation of Yesso Scallop Patinopecten yessoensis . [europepmc]
- Anomalous Temperature Interdicts the Reproductive Activity in Fish: Neuroendocrine Mechanisms of Reproductive Function in Response to Water Temperature. [europepmc]
- Aquaponics as a Promising Strategy to Mitigate Impacts of Climate Change on Rainbow Trout Culture. [europepmc]
- Transcriptomic Analysis on the Effects of Altered Water Temperature Regime on the Fish Ovarian Development of Coreius guichenoti under the Impact of River Damming. [europepmc]
- Lunar Cycle, Climate, and Onset of Parturition in Domestic Dromedary Camels: Implications of Species-Specific Metabolic Economy and Social Ecology. [europepmc]
- Pre-fertilization gamete thermal environment influences reproductive success, unmasking opposing sex-specific responses in Atlantic salmon ( Salmo salar ). [europepmc]
- Transcriptome Analysis Revealed the Early Heat Stress Response in the Brain of Chinese Tongue Sole ( Cynoglossus semilaevis ). [europepmc]
- Trpv4-mediated apoptosis of Leydig cells induced by high temperature regulates sperm development and motility in zebrafish. [europepmc]
- Insights into thermal sensitivity: Effects of elevated temperature on growth, metabolic rate, and stress responses in Atlantic wolffish (Anarhichas lupus). [europepmc]
- Altered spawning seasons of Atlantic salmon broodstock transcriptionally and epigenetically influence cell cycle and lipid-mediated regulations in their offspring. [europepmc]
- Transcriptomic Response and Molecular Adaptation Mechanisms of Common Carp ( Cyprinus carpio ) Intestine Under Dual Stress of High Temperature and Zinc. [europepmc]
Related