Reviews in Fish Biology and Fisheries

, Volume 14, Issue 3, pp 305–319

Interaction between hatchery and wild Pacific salmon in the Far East of Russia: A review

Article

DOI: 10.1007/s11160-005-3583-y

Cite this article as:
Zaporozhets, O. & Zaporozhets, G. Rev Fish Biol Fisheries (2004) 14: 305. doi:10.1007/s11160-005-3583-y

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 

Copyright information

© Springer 2005

Authors and Affiliations

  1. 1.Kamchatka Research Institute of Fisheries and Oceanography, (KamchatNIRO)Petropavlovsk-KamchatskyRussia

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