E3S Web of Conf.
Volume 390, 2023VIII International Conference on Advanced Agritechnologies, Environmental Engineering and Sustainable Development (AGRITECH-VIII 2023)
|Number of page(s)||6|
|Section||Biodiversity, Agroforestry and Ecosystem Stability for Sustaining the Natural Area|
|Published online||01 June 2023|
Winter refuge for freshwater fish
Tobolsk Complex Scientific Station of the Ural Branch of the Russian Academy of Sciences, 16 Akademika Yuriya Osipova street, Tobolsk, Tyumen region, Russia
* Corresponding author: email@example.com
The ecological aspect of the behavioral and physiological adaptation of fish in the autumn-winter period in water bodies of the temperate and subarctic climatic zones of the Northern Hemisphere is considered. It has been established that fish in the studied areas with a decrease in water temperature form aggregations in deep, low-speed sites for the successful wintering. In the considered period of the life cycle, the metabolism in fish slows down to reduce the depletion of lipid reserves; therefore, this group of aquatic organisms forms accumulations in areas with fundamental properties - depth and low flow rate. This phenomenon can be considered a behavioral-physiological adaptation developed as a result of evolutionary processes. The results of work on the discovery of such wintering grounds have been noted for the continents - Eurasia and North America. Fish families that use such winter refuge include Cyprinidae, Percidae, Coregonidae, Thymallidae, Salmonidae, Lotidae, Esocidae, Siluridae, and Acipenseridae.
© The Authors, published by EDP Sciences, 2023
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