Автор работы: Пользователь скрыл имя, 18 Марта 2011 в 19:21, реферат
Record-keeping of waterfowls of Issyk-Kul lake is carried out. Materials of registration have been processed on Issyk-Kul oblast as well as materials of tagging of birds. New tools for birds catching have been repaired and created. Biological samples from 20 birds have been taken.