Index Catalog // ScholarsArchive@OSU

Creator:: Sloat, Matthew R. and Reeves, Gordon H.
Abstract:: We manipulated food inputs among patches within experimental streams to determine how variation in foraging behavior influenced demographic and phenotypic responses of juvenile steelhead trout (Oncorhynchus mykiss) to the spatial predictability of food resources. Demographic responses included compensatory adjustments in fish abundance, mean fish size, and size inequality. These responses...
Resource Type:: Article
Full Text:: . Armstrong, T. G. G. Groothuis, and N. B. Metcalfe. 2013. The growth benefits of aggressive MATTHEW R. SLOAT

Creator:: Sloat, Matthew R. and Reeves, Gordon H.
Abstract:: 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,...
Resource Type:: Article
Full Text:: w w .n rc re se ar ch pr es s. co m b y O re go n St at e U ni ve rs ity o n 04

Creator:: McMillan, John R., Dunham, Jason B., Reeves, Gordon H., Mills, Justin S., and Jordan, Chris E.
Abstract:: Alternative male phenotypes in salmonine fishes arise from individuals that mature as larger and older anadromous marine-migrants or as smaller and younger freshwater residents. To better understand the processes influencing the expression of these phenotypes we examined the influences of growth in length (fork length) and whole body lipid content...
Resource Type:: Article
Full Text:: This study was conducted in the John Day River basin (45º44′N,120º39′W), a large free-flowing trib

Creator:: Ohms, Haley A., Sloat, Matthew R., Reeves, Gordon H., Jordan, Chris E., and Dunham, Jason B.
Abstract:: In partially migratory species, such as Oncorhynchus mykiss, the emergence of life history phenotypes is often attributed to fitness trade-offs associated with growth and survival. Fitness trade-offs can be linked to reproductive tactics that vary between the sexes, as well as the influence of environmental conditions. We found that O....
Resource Type:: Article
Full Text:: w w w .n rc re se ar ch pr es s. co m b y O re go n St at e U ni ve rs ity o n

Creator:: Mills, Justin S., Dunham, Jason B., Reeves, Gordon H., McMillan, John R., Zimmerman, Christian E., and Jordan, Chris E.
Abstract:: We described and predicted spatial variation in marine migration (anadromy) of female Oncorhynchus mykiss in the John Day River watershed, Oregon. We collected 149 juvenile O. mykiss across 72 sites and identified locations used by anadromous females by assigning maternal origin (anadromous versus non-anadromous) to each juvenile. These assignments used...
Resource Type:: Article
Full Text:: (45°44’N, 120°39’W) is a free- flowing tributary to the Columbia River draining approximately 20 500

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