FISH POPULATION OF THE COAST OF BAIDARATSKAYA BAY (PENINSULA YAMAL) UNDER THE HUMAN IMPACT
Journal Title: Вестник Астраханского государственного технического университета. Серия: Рыбное хозяйство - Year 2013, Vol 0, Issue 2
Abstract
The evaluation of the changes of the structure and the number of mass fish species under the human impact is made. The complex human impact has led to structural change of the population of the fishes of the Yarayaha river at conservation of the allochthonous principle of formation, and also to the termination of reproduction of the most fish species and sharp decrease in number of white fish because of fishery. Native-born ichthyofauna colonizes the reservoirs of anthropogenic origin.
Authors and Affiliations
Kizhevatov Albertovich , Kizhevatova Adolfovna
DEVELOPMENT AND IMPROVEMENT OF FIXED FISHING GEAR
During last 15–20 years of the XXth century in the Volga-Caspian region fishing conditions have changed dramatically that led to considerable changes of the fishery itself in this region. Trap net fishing in the region h...
ГИДРОХИМИЧЕСКИЕ И ГИДРОБИОЛОГИЧЕСКИЕ ИССЛЕДОВАНИЯ НЕКОТОРЫХ ВОДНЫХ ОБЪЕКТОВ ДЕЛЬТЫ РЕКИ ВОЛГИ
Представлены результаты некоторых гидрохимических и гидробиологических исследований дельты р. Волги, приведена временная и пространственная динамика содержания гидролого-гидрофизических, гидрохимических показателей. Изуч...
MORPHOLOGICAL VARIATION OF SHEMAYA CHALCALBURNUS CHALCOIDES CHALCOIDES (GULDENSTADT, 1772) IN THE CASPIAN SEA
For the first time traditional morphological characteristics of the river and marine shemaya populations in the Caspian Sea were studied in details. The differences in the color of different parts of fish body from diffe...
COMMERCIAL EXPLOITATION OF A POPULATION OF BREAM (ABRAMIS BRAMA LINNAEUS, 1758) IN THE VOLGA-CASPIAN REGION
A bream is the most numerous type of fishing among of fluvial anadromous fishes and river fishes of the Volga-Caspian region. Catches were about 60 thousand tons in the middle of the twentieth century and made up almost...
COMPARATIVE ANALYSIS OF INFLUENCE OF pH ON THE LEVEL OF THE ACTIVITY OF DIGESTIVE ENZYMES OF RUSSIAN STURGEON, SIBERIAN STURGEON AND THEIR HYBRID BY MEANS OF NONMETRIC MULTIDIMENSIONAL SCALING
The pH impact on some digestive enzymes of the intestinal mucous tunic of Rrussian sturgeon, Siberian sturgeon and their hybrid ROLO is examined. The influence of the pH on α-amylase, maltase, alkaline phosphatase and ca...