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Creator:: Zimmerman, Christian E.
Abstract:: The relationship of coastal cutthroat trout (Oncorhynchus clarki clarki) populations in the Muck Creek basin, a 238 km² southern Puget Sound stream basin in western Washington, was examined using starch gel electrophoresis and meristic analysis. Coastal cutthroat trout were collected from six sites throughout the basin including tributaries, portions of...
Resource Type:: Masters Thesis
Full Text:: trout, brook trout (Salvelinus fontinalis), largemouth bass (Micropterus salmoides), sunfish (Lepomis

Creator:: Tinus, Craig A.
Abstract:: Juvenile steelhead are known to associate with shiner groups, though they also compete for food. Steelhead form dominance hierarchies within cohorts and aggressively defend feeding territories against all other fish. This study focused on the differential effect of shiner competition on steelhead of different social standing. Survival of subordinate juvenile...
Resource Type:: Masters Thesis
Full Text:: To 0t o 0.2 c,2 0.0 9 EM 15° Number of Shiner Present lam:3 20° 19 Steelhead Growth

Creator:: Sleeper, Jack David
Abstract:: Visual estimation techniques were used to quantify habitat characteristics, habitat type (pool, riffle) use and longitudinal distribution of steelhead (Oncorhynchus mykiss), cutthroat trout (0. clarki), and coho salmon (0. kisutch) in spring, summer and fall in 8.8 km of Cummins Creek, a basin in the central coast of Oregon. Fish...
Resource Type:: Masters Thesis
Full Text:: remained intact. 40 7 35 30 25 20 15 10 C3 .z..7 5 O Oct Feb June Oct 1987 Feb June Oct 1988

Creator:: Mesa, Matthew G.
Abstract:: We examined the behavioral and physiological responses of wild and hatchery-reared cutthroat trout Oncorhynchus clarki subjected to a single electroshock, electroshock plus marking, and multiple electroshocking in natural and artificial streams. In a natural stream, trout released after capture by electrofishing and marking showed distinct behavioral changes: fish immediately sought...
Resource Type:: Masters Thesis
Full Text:: \o/ 14 0\/0 0.0 (8) A -A -,!L -A - 0 0 001 2 3 4 5 6 24 168 ooNORMAL FISH 4---AABNORMAL FISH

Creator:: Zimmerman, Christian E.
Abstract:: Sympatric steelhead and resident rainbow trout (Oncorhynchus mykiss) are known to exist in many rivers throughout the Pacific Rim. Whether sympatric steelhead and resident rainbow trout are polymorphisms within a single gene pool or two reproductively isolated populations has significant implications concerning the study and conservation of this polytypic species....
Resource Type:: Dissertation
Full Text:: 1000 1500 70 60 - Ci)4- C o 50- 0 ci) 4 E U) '5 30- 0)0 E 20- z 10 I- 0.0005 0.0010 0.0015 Sr

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