Among other processes, endocrine factors regulate food intake, growth, and reproduction, three interlinked physiological processes critical for the life cycle of organisms. Somatic growth is mainly regulated by growth hormone (GH) and insulin-like growth factors I and II (IGF-I and IGF-II) that act on target tissues, including muscle and bones. The hypothalamic-pituitary-interrenal (HPI) axis acts to modulate reproduction when inner and external signals indicate favorable conditions. As a third integrated axis, peptidyl hormones produced from the brain and peripheral tissues regulate feeding to meet the metabolic demands of the organism. The coordination of
these three interrelated axes is crucial to maintain fish homeostasis. The GH-IGF system, the HPI axis and hormones regulating appetite are controlled by both internal (indicating the metabolic status of the organism) and external (indicating the status of the environment) signals. Among the external signals, the most notable are diet availability and composition as well as water physicochemical parameters such as temperature, salinity and pH.
Nutrients and the above-mentioned physicochemical parameters act on several hormone-producing tissues to regulate the synthesis and secretion of appetite-regulating factors, and hormones of the GH-IGF and HPIs system, eventually modulating growth, reproduction and food intake.
In the current years in which world population is increasing exponentially, fisheries and aquaculture arise as disciplines that can help to feed humanity. In a context of global change, in which anthropogenic activities are directly modifying (or at least increasing the speed of change of) the environmental conditions, a comprehensive understanding of how external signals affect the functioning of fish endocrine systems is essential. This understanding could be useful to design the best conditions (diet formulations, stock and handling conditions) to modulate endogenous factors to increase aquaculture yields. Also, it can help to elucidate how the future scenarios of global change might affect fish in the ocean in the upcoming years.
This Research Topic will include studies that investigate external factors playing an endocrine control of growth, reproduction, and food intake in model or farmed fish species. Manuscripts including original research, reviews, perspectives, commentaries, and opinions covering one or more of the following themes are welcome:
-Nutritional regulation of endocrine factors involved in fish growth, reproduction, or food intake.
-Regulation of endocrine factors involved in growth, reproduction, or food intake by water parameters such as pH, temperature, or salinity.
-Interlink between the endocrine systems involved in growth, reproduction, and food intake in fish and how external factors contribute to regulating these interactions.
Among other processes, endocrine factors regulate food intake, growth, and reproduction, three interlinked physiological processes critical for the life cycle of organisms. Somatic growth is mainly regulated by growth hormone (GH) and insulin-like growth factors I and II (IGF-I and IGF-II) that act on target tissues, including muscle and bones. The hypothalamic-pituitary-interrenal (HPI) axis acts to modulate reproduction when inner and external signals indicate favorable conditions. As a third integrated axis, peptidyl hormones produced from the brain and peripheral tissues regulate feeding to meet the metabolic demands of the organism. The coordination of
these three interrelated axes is crucial to maintain fish homeostasis. The GH-IGF system, the HPI axis and hormones regulating appetite are controlled by both internal (indicating the metabolic status of the organism) and external (indicating the status of the environment) signals. Among the external signals, the most notable are diet availability and composition as well as water physicochemical parameters such as temperature, salinity and pH.
Nutrients and the above-mentioned physicochemical parameters act on several hormone-producing tissues to regulate the synthesis and secretion of appetite-regulating factors, and hormones of the GH-IGF and HPIs system, eventually modulating growth, reproduction and food intake.
In the current years in which world population is increasing exponentially, fisheries and aquaculture arise as disciplines that can help to feed humanity. In a context of global change, in which anthropogenic activities are directly modifying (or at least increasing the speed of change of) the environmental conditions, a comprehensive understanding of how external signals affect the functioning of fish endocrine systems is essential. This understanding could be useful to design the best conditions (diet formulations, stock and handling conditions) to modulate endogenous factors to increase aquaculture yields. Also, it can help to elucidate how the future scenarios of global change might affect fish in the ocean in the upcoming years.
This Research Topic will include studies that investigate external factors playing an endocrine control of growth, reproduction, and food intake in model or farmed fish species. Manuscripts including original research, reviews, perspectives, commentaries, and opinions covering one or more of the following themes are welcome:
-Nutritional regulation of endocrine factors involved in fish growth, reproduction, or food intake.
-Regulation of endocrine factors involved in growth, reproduction, or food intake by water parameters such as pH, temperature, or salinity.
-Interlink between the endocrine systems involved in growth, reproduction, and food intake in fish and how external factors contribute to regulating these interactions.
