Effects of temperature on feeding and digestive processes in fish.
Hélène Volkoff,Ivar Rønnestad +1 more
- Vol. 7, Iss: 4, pp 307-320
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TLDR
The goal of this review is to summarize current knowledge on the effects of temperature on energy homeostasis, with specific focus on metabolism, feeding, digestion, and how fish are often able to “adapt” to changing environments through phenotypic and physiological changes.Abstract:
As most fish are ectotherms, their physiology is strongly affected by temperature. Temperature affects their metabolic rate and thus their energy balance and behavior, including locomotor and feeding behavior. Temperature influences the ability/desire of the fish to obtain food, and how they process food through digestion, absorb nutrients within the gastrointestinal tract, and store excess energy. As fish display a large variability in habitats, feeding habits, and anatomical and physiological features, the effects of temperature are complex and species-specific. The effects of temperature depend on the timing, intensity, and duration of exposure as well as the speed at which temperature changes occur. Whereas acute short-term variations of temperature might have drastic, often detrimental, effects on fish physiology, long-term gradual variations might lead to acclimation, e.g. variations in metabolic and digestive enzyme profiles. The goal of this review is to summarize our current knowledge on the effects of temperature on energy homeostasis, with specific focus on metabolism, feeding, digestion, and how fish are often able to "adapt" to changing environments through phenotypic and physiological changes.read more
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References
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Book ChapterDOI
1 – The Effect of Environmental Factors on the Physiology of Fish
TL;DR: The chapter focuses on the action of the environment on metabolism and the effects of this action on the activity of the organism.
Journal ArticleDOI
Integrating Thermal Physiology and Ecology of Ectotherms: A Discussion of Approaches
TL;DR: Analytical methods of describing and comparing certain as?
Journal ArticleDOI
Energetic Responses of Salmon to Temperature. A Study of Some Thermal Relations in the Physiology and Freshwater Ecology of Sockeye Salmon (Oncorhynchus nerkd)
TL;DR: It is concluded that a mechanism of behavioral thermoregulation has evolved which favorably balances daily metabolic expenditures in order to conserve energy when food is limited.
Journal ArticleDOI
Temperature Tolerances of North American Freshwater Fishes Exposed to Dynamic Changes in Temperature
TL;DR: This review has summarized published research concerning the tolerance of North American freshwater fishes to dynamic changes in temperature, i.e., tolerance is tested by methods that gradually change temperatures until biological stress is observed.
Journal ArticleDOI
Climate change effects on fishes and fisheries: towards a cause-and-effect understanding
Hans-Otto Pörtner,Myron A. Peck +1 more
TL;DR: This paper tries to establish links between various levels of biological organization by means of addressing the effective physiological principles at the cellular, tissue and whole organism levels.