Open AccessPHYSIOLOGICAL INDICES OF BELUGA AND SHIP AND THEIR INTERSPECIFIC HYBRIDS IN FISH-FARM CONDITIONS
Author(s) -
Elena Evgrafova,
O. V. Pyatikopova,
Irina Bedritskaya,
Ekaterina Yakovleva,
Anisia Victorovna Dubovskaya,
Ralina Rasimovna Tangatarova,
Margarita Evgenevna Perunova
Publication year - 2020
Publication title -
vestnik astrahanskogo gosudarstvennogo tehničeskogo universiteta. seriâ: rybnoe hozâjstvo
Language(s) - English
Resource type - Journals
eISSN - 2309-978X
pISSN - 2073-5529
DOI - 10.24143/2073-5529-2020-4-154-164
Subject(s) - beluga , sturgeon , huso , fishery , biology , interspecific competition , hybrid , fish <actinopterygii> , acipenser , zoology , ecology , botany
The objects of research are Beluga (Huso huso, Linnaeus), sturgeon spike (Acipenser nudiventris, Lovetsky) and their interspecific hybrids of artificial generation grown on the Research and Experimental Base BIOS (the Astrakhan region) by using the basin method. To assess the physiological status of fish, a set of morphophysiological indicators (absolute and relative weight of gills, heart, liver, and gonads) were used. The dynamics of the indices of the corresponding viscera of Beluga and sturgeon spike and their interspecific hybrids in the second year of cultivation was studied. The necessity for the research is explained by the fact that most work performed was carried out on land vertebrates and on fish of natural generation. There have been presented the average values of morphophysiological indices for each of the four groups of unmixed sturgeon species and their hybrids. The obtained values of the studied parameters of sturgeon species can be used for further monitoring of the fish growing conditions using the basin method.