Abstract
The article describes the research carried out in the aquarium complex of the scientific expedition base (SEB) “Kagalnik” of the southern scientific center of the Russian Academy of Sciences. The object of research was mullet species – pilengas (Liza haematocheilus (Temminck & Schlegel, 1845)). The method of adaptation of pilengas to industrial conditions is developed. It is based on step-by-step adaptation of fish to new conditions during the period of 30-40 days. The conversion of pilengas 
 to artificial food was carried out with wet feed based on fresh minced fish and artificial granulated feed. Three types of feeds with different nutrient content were used. The long-term use of wet feed in closed or semi-closed systems is not advisable, due to the rapid water pollution and deterioration of the hydrochemical regime, so pilengas later completely started to eat dry granulated feed, due 
 to which the optimal growth rates were obtained. Pilengas increased body weight while maintaining exterior characteristics. Therefore, the food with high protein content (up to 40%) is recommended for pilengas. The physiological parameters of pilengas blood were satisfactory both in wild individuals and those adapted in a closed water supply. As a result of the conducted research, there was confirmed the possibility of adaptation, maintenance and cultivation of pilengas in the closed water supply systems using mixed feeds.
Highlights
The method of adaptation of pilengas to industrial conditions is developed. It is based on step-by-step adaptation of fish to new conditions during the period of 30-40 days
The physiological parameters of pilengas blood were satisfactory both in wild individuals and those adapted in a closed water supply
The food with high protein content is recommended for pilengas
Summary
В Азово-Черноморском регионе с 2000 г. наблюдается снижение уловов и численности пиленгаса. Для перевода кефали пиленгас из естественных водоемов для выращивания в УЗВ необходима разработка специальных методов адаптации. Целями работы являлись разработка технологии адаптации пиленгаса, выловленного в естественном ареале обитания, к искусственным условиям выращивания в УЗВ и анализ опыта его перевода на искусственные корма. Для адаптации привезенного пиленгаса к новым условиям содержания из транспортировочной емкости его пересаживали в карантинные бассейны размером 1 × 1 × 0,4 м. Во время начальной адаптации и при последующем выращивании пиленгаса кислород колебался в пределах 7,2–10,4 мг/л, температура 18–22 °С, а рН воды 6,5–8,5 2. Динамика температуры, содержания кислорода, рН водной среды при выращивании пиленгаса. В результате исследований выявлено, что за период адаптации абсолютный прирост массы кефали пиленгаса при выращивании в вариантах 2 и 3 был практически одинаков и составил 146 и 147 г, что выше на 36 % по сравнению с вариантом 1. Рыбоводно-биологические показатели кефали пиленгаса при адаптации к искусственным кормам
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