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Citeable URL: http://ir.library.oregonstate.edu/concern/articles/d217qr26x

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by NRC Research Press and can be found at:  http://www.nrcresearchpress.com/journal/cjfas.

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Creator	Sloat, Matthew R. Reeves, Gordon H.
Abstract or Summary	We reared juvenile Oncorhychus mykiss with low and high standard metabolic rates (SMR) under alternative thermal regimes to determine how these proximate factors influence life histories in a partially migratory salmonid fish. High SMR significantly decreased rates of freshwater maturation and increased rates of smoltification in females, but not males, after 1 year of rearing. Warmer water temperatures significantly decreased rates of freshwater maturation and increased rates of smoltification in both sexes. Variation in individual growth influenced the probability of adopting anadromy or freshwater residency as life histories, but produced paradoxical results. Individuals with the highest growth performance within their respective temperature treatments had a higher probability of freshwater maturation, but warmer temperatures decreased freshwater maturation despite significantly increasing somatic growth. Whole-body lipid content was significantly lower for fish reared in the warm temperature treatment, which may explain the decreased probability of freshwater maturation for individuals exposed to warmer temperatures. Our results indicate that changes in somatic growth induced by altered thermal regimes can influence the relationship between body size and the probability of maturation. Accordingly, somatic growth may not be a robust predictor of shifts in the prevalence of anadromy and residency in partially migratory salmonids when compared across thermal regimes.
Resource Type	Article
DOI	10.1139/cjfas-2013-0366
Date Available	2014-05-08T19:15:00+00:00
Date Issued	2014-04
Citation	Sloat, M. R., & Reeves, G. H. (2014). Individual condition, standard metabolic rate, and rearing temperature influence steelhead and rainbow trout (Oncorhynchus mykiss) life histories. Canadian Journal of Fisheries and Aquatic Sciences, 71(4), 491-501. doi:10.1139/cjfas-2013-0366
Series	Vol. 71 no. 4 Canadian Journal of Fisheries and Aquatic Sciences
Rights Statement	Copyright Not Evaluated
Funding Statement (additional comments about funding)	Funding for this work was provided by the USDA Forest Service, Pacific Northwest Research Station, Corvallis, Oregon, National Marine Fisheries Service, Northwest Fisheries Science Center, Washington, and the Oregon Chapter of the American Fisheries Society Carl Bond Memorial Scholarship.
Publisher	NRC Research Press
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/47977
Additional Information	description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2014-05-08T19:15:00Z (GMT) No. of bitstreams: 1 SloatMatthewFisheriesWildlifeIndividualConditionStandard.pdf: 1071091 bytes, checksum: 5036fc3c29b09ea048c16061c7ef77eb (MD5) description.provenance : Made available in DSpace on 2014-05-08T19:15:00Z (GMT). No. of bitstreams: 1 SloatMatthewFisheriesWildlifeIndividualConditionStandard.pdf: 1071091 bytes, checksum: 5036fc3c29b09ea048c16061c7ef77eb (MD5) Previous issue date: 2014-04 description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2014-05-08T19:14:37Z No. of bitstreams: 1 SloatMatthewFisheriesWildlifeIndividualConditionStandard.pdf: 1071091 bytes, checksum: 5036fc3c29b09ea048c16061c7ef77eb (MD5)

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