首页 | 本学科首页   官方微博 | 高级检索  
     


Interaction between hatchery and wild Pacific salmon in the Far East of Russia: A review
Authors:O.M.?ZaporozhetsEmail author  G.V.?Zaporozhets
Affiliation:(1) Kamchatka Research Institute of Fisheries and Oceanography, (KamchatNIRO), 18 Naberezhnaya Street, Petropavlovsk-Kamchatsky, 683000, Russia
Abstract:We review studies of interactions between hatchery and wild Pacific salmon in the Russian Far East. This includes the role of hatchery practices that result in premature migration to the sea and increased mortality, and data on feeding and territorial competition between juveniles of hatchery and wild origin. In the course of downstream migration many juvenile hatchery salmon are eliminated by wild salmon predation. During the marine period, Japanese hatchery chum salmon (Oncorhynchus keta) distribution overlaps the distribution of Russian wild salmon. Consequently, replacement of wild populations by hatchery fishes, as a result of abundant juvenile hatchery releases combined with extensive poaching in spawning grounds, is apparent in some Russian rivers. Interactions between the populations occur in all habitats. The importance of conservation of wild salmon populations requires a more detailed study of the consequences of interactions between natural and artificially reared fishes.
Keywords:hatchery salmon  population interactions  Russia  wild salmon
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号