Морфо-экологические характеристики и питание свободноживущих особей радужной форели Oncorhynchus mykiss (Walbaum, 1792) Красноярского водохранилища
نویسندگان
چکیده
The paper provides information on the biological parameters and feeding of rainbow trout Oncorhynchus mykiss (Walbaum, 1792) that has entered Krasnoyarsk Reservoir by escaping from fish farm cages. In diet studied individuals, eleven groups food components are found; imagoes terrestrial insects chironomid larvae dominate in ration. At same time, individuals characterized slow linear weight growth, low condition factor stomach fullness, as well a significant presence non-food boluses, indicating an insufficient supply wild population with resources. addition, high degree morphological malformations axial skeleton, which could affect their locomotor functions ability to reproduce. Therefore, emergence self-reproducing is currently assessed unlikely.
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ژورنال
عنوان ژورنال: ????????????? ?????????
سال: 2022
ISSN: ['2225-9074', '2687-1416']
DOI: https://doi.org/10.23859/estr-220301