title: [Postspawning survival in lacustrine sock-eyed salmon Oncorhynchus nerka Walb].
abstract: The state of gonads, age, structure of scales, and size of specimens of the resident lacustrine form of sock-eyed salmon--kokanee Onchorhynchus nerka--are analyzed. In stocked, previously fishless, lakes, there are specimens that have survived spawning and have remained active for a year or several years. No evidence was found of the possibility of repeated spawning. Thus, such fish do not belong to the spawning stock of the population, and their ecological function is not clear.
authors: G N
authors: GN
authors: Markevich
authors: E G
authors: EG
authors: Ivashkin
authors: E D
authors: ED
authors: Pavlov
mesh_terms: D000818:Animals; D005075:Biological Evolution; D001837:Body Weights and Measures; D004463:Ecology; D005260:Female; D005618:Fresh Water; D006066:Gonads / Q000166:cytology*; D060106:Lakes; D008297:Male; D012098:Reproduction; D012474:Salmon / Q000254:growth & development*; D013534:Survival