TROPHIC RELATION AND NUTRITIONAL STATE OF THE PERCH PERCA FLUVIATILIS L., 1758 (PERCIDAE) FROM K. SATPAEV'S CHANNEL RESERVOIRS
Journal Title: Вестник Астраханского государственного технического университета. Серия: Рыбное хозяйство - Year 2013, Vol 0, Issue 2
Abstract
The perch Perca fluviatilis L., 1758 (Percidae) is a one of the mass species of fishes fauna of K. Satpaev's (formerly Irtysh-Karaganda) channel waters. This species is feeding more than 20 species of benthos, nekton organisms and fishes. The nekton crustacean and fish have the most important value for perch feeding. The feeding intensity is about 40 %. The perch is feeding while spawning too. Perch population has a tendency of nutritional state decrease while moving from south to north. Old individuals and males are more well-fed in comparison with young species and females. The nutritional state of perch from the reservoirs of K. Satpaev's channel is at high level. The value of a perch in a food of other predators is ambiguous and varied throughout the time of research. In connection with undesirability of a high abundance of the species in industrial fish community the actions for decrease in its number are necessary to be carried out.
Authors and Affiliations
Kraynyuk Nickolaevich , Assylbekova Zhangirovna
Keywords
Related Articles
- EP ID EP146886
- DOI -
- Views 71
- Downloads 0
FEATURES OF MICROSTRUCTURE FORMATION PROCESS OF CARP SURIMI GEL DEPENDING ON THE MODES OF THE TECHNOLOGICAL TREATMENT
The results of comparative evaluation of the microstructure of common carp (Cyprinus carpio) gel, washed by electro activated water systems and water according to the data of scanning micros-copy, taking into account moi...
СТЕРЛЯДЬ РЕКИ ВОЛГИ
Приведены данные по уловам стерляди в р. Волге, по сезонным изменениям возраста стерляди. Описано соотношение ходовых самок и самцов, совершающих нерестовую миграцию. Отмечено, что и ходовые, и покатные производители в у...
QUALITATIVE COMPOSITION OF PLANKTONIC ORGANISMS OF KARAKOL LAKE UNDER THE INFLUENCE OF MAN-MADE FACTORS
The population of man-made body of water lake Karacol (Kazakhstan) under the influence of thermal waste treatment, which led to the loss of indigenous population of the Middle Caspian in the pond is studied. It is...
QUALITATIVE ESTIMATION OF RUSSIAN STURGEON BROODSTOCK IN DEPENDENCE OF THE ENVIRONMENTAL CONDITIONS
The results of investigations, showing the peculiarities of morphological and physiological figures of domesticated breeders of Russian sturgeon, kept in different conditions, in particular in net cages of Astrakhan fish...
МАТЕРИАЛЫ ПО ПЛОДОВИТОСТИ И ВОСПРОИЗВОДСТВУ ОКУНЯ PERCA FLUVIATILIS L., 1758 (PERCIDAE) В ВОДОХРАНИЛИЩАХ КАНАЛА ИМ. К. САТПАЕВА
Важную роль в поддержании высокой численности окуня в водохранилищах канала им. К. Сатпаева играет его устойчивое воспроизводство. Это обеспечивается относительно высокой плодовитостью, ранним созреванием и высокой дол...