Menu: Home :: go to Journal :: switch to Russian :: switch to English
You are here: all Journals and Issues→ Journal→ Issue→ Article

Volga undermouth Chondrostoma variabile Jakowlew, 1870 in spawning congestions of fishes in middle stream of Oka River in Ryazan Province (results of monitoring in 1970–2012)

Annotation

Data of monitoring of Volga undermouth spawning conges-tions in the middle stream of Oka River are presented in the article. The basic population indicators (growth, age, fertility, morphometric characters of breeders) are presented. Dynamics of relative number of undermouth and its shares in catches is shown, its reasons are analyzed. The work purpose: to carry out a current state of the population indicators of undermouth spawning congestions in the middle stream of Oka River and to analyze factors defining it.

Keywords

Volga undermouth; middle stream of Oka River; population indicators; dynamics; number

Full-text in one file

Download

UDC

597.08.574.5

Pages

3008-3011

Received

2013-05-15

Section of issue

Scientific articles

Для корректной работы сайта используйте один из современных браузеров. Например, Firefox 55, Chrome 60 или более новые.