作者: Lynn R. Kaeding
DOI: 10.1080/02755947.2013.815672
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摘要: Abstract The Yellowstone Cutthroat Trout Oncorhynchus clarkii bouvieri (YCT) of Lake, in National Park, Wyoming, is an iteroparous fish and obligate stream spawner. size several other attributes the annual YCT spawning run one lake tributary, Clear Creek, have been periodically estimated for decades. trends that run's metrics assumed to depict lake's population as a whole, although such associations had not substantiated by statistical analyses. present study revealed strong correlations between (years 1977–2007) “prespawner” (i.e., mature whose excised gonads indicated would spawned next year) caught gill nets set various locations preceding fall. Data both capture methods also negative effect density on somatic growth, which known be positively associated with fecundity. This sho...