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Response of trout, sculpins, and salamanders to experimental manipulation of large wood in Cascade Mountain streams

Creator:: Burgess, Jack A.
Abstract:: Response of aquatic vertebrates to increased pool habitat complexity due to abundance of large wood was evaluated experimentally in three streams in the Cascade Mountains of Oregon. No difference in aquatic vertebrate density was detected among treatments, though there was a trend of increasing aquatic vertebrate density with increasing large...
Resource Type:: Masters Thesis

Fish movement and assemblage dynamics in a Pacific Northwest riverscape

Creator:: Baxter, Colden V.
Abstract:: This study examined fish movements and assemblage dynamics in the Wenaha, Grande Ronde, Snake river system of northeast Oregon and southeast Washington. I investigated the role of fish movement in the dynamics of stream fish assemblages and evaluated relationships between species movement, assemblage structure, and the heterogeneity of habitat at...
Resource Type:: Dissertation

A simulation model of wood dynamics in Pacific Northwest streams

Creator:: Meleason, Mark Alan
Abstract:: Conceptually, the dynamics of wood in streams can be viewed in terms of input and in-channel processes. Input processes are associated with both the riparian (tree fall, bank cutting, windthrow) and upslope forests (mass failures). In-channel processes include log breakage, movement, and decomposition. A mechanistic view of these processes is...
Resource Type:: Dissertation
Full Text:: . Bisson, P. A., R. B. Bilby, M. D. Bryant, C. A. Dolloff, G. B. Grette, R. A. House, M. L. Murphy, K. V

A simulation model of English sole (Parophrys vetulus) recruitment mechanisms

Creator:: Kruse, Gordon H.
Resource Type:: Dissertation

A food web analysis of a Mojave Desert geothermal spring system and feeding ecology of Moapa dace (Moapa coriacea)

Creator:: StSaviour, Adam
Abstract:: Understanding food webs is fundamental in conserving endangered species and maintaining healthy ecosystem function, particularly in desert spring systems. We identified dominant energy sources in the Muddy River Warm Springs area, Clark County, NV using carbon and nitrogen natural abundance stable isotope analyses. We examined isotopic signatures of specific macroinvertebrate...
Resource Type:: Masters Thesis
Full Text:: /00 vs. PDB) δ 1 5 N ( 0 / 0 0 v s. A ir ) 08 Primary producers 08 Macroinvertebrates 08

Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

Creator:: Rundio, David E.
Abstract:: The coexistence of multiple predators may have important consequences for the structure and function of communities. Interactions between predators may strongly affect their combined direct and indirect effects on prey populations and lower trophic levels. Predators often have size-structured populations, which may result in intraguild predation characterized by complex trophic...
Resource Type:: Masters Thesis
Full Text:: Trout. Abstract approved: Deanna H. Olson I Stanley V. Gregory The coexistence of multiple predators

Seasonal changes in distribution and abundance of salmonids and habitat availability in a coastal Oregon basin

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:: salmonids and habitat availability in a coastal Oregon basin AN ABSTRACT OF THE THESIS OF Jack David

Influence of geomorphology and land use on distribution and abundance of salmonids in a coastal Oregon basin

Creator:: Schwartz, John Steven
Resource Type:: Masters Thesis
Full Text:: Basin Redacted for privacy Abstract approved: %t\Inley V. Gregor The basin morphology of a fifth

Passage of juvenile cutthroat trout and steelhead through retrofitted culverts

Creator:: McEnroe, Jeffrey R.
Abstract:: Culverts and road crossings potentially create barriers that impede or prevent movement and migration of all life stages of resident and anadromous fish. There have been very few studies of juvenile salmonid movements through retrofitted (baffled) culverts in the field. Two separate studies were conducted to assess juvenile cutthroat trout...
Resource Type:: Masters Thesis

Habitat relationships of native and non-native fishes of the Willamette River, Oregon

Creator:: Williams, Joshua E.
Abstract:: The Willamette River flows north between the Cascade Mountains and Coast Range of western Oregon within a 29,728-km² basin. The fish community in the geologically young basin consists of 36 native species, but introductions of non-native fishes have added 33 additional species for a total of 69 fish species. During...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Stanley V. Gregory The Willamette River flows north between the Cascade Mountains and

ScholarsArchive@OSU

Response of trout, sculpins, and salamanders to experimental manipulation of large wood in Cascade Mountain streams

Fish movement and assemblage dynamics in a Pacific Northwest riverscape

A simulation model of wood dynamics in Pacific Northwest streams

A simulation model of English sole (Parophrys vetulus) recruitment mechanisms

A food web analysis of a Mojave Desert geothermal spring system and feeding ecology of Moapa dace (Moapa coriacea)

Coexistence of top predators in headwater streams : pathways of intraguild predation between Pacific Giant salamander larvae and cutthroat trout

Seasonal changes in distribution and abundance of salmonids and habitat availability in a coastal Oregon basin

Influence of geomorphology and land use on distribution and abundance of salmonids in a coastal Oregon basin

Passage of juvenile cutthroat trout and steelhead through retrofitted culverts

Habitat relationships of native and non-native fishes of the Willamette River, Oregon

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