Index Catalog // ScholarsArchive@OSU

Creator:: Gunckel, Stephanie L.
Abstract:: One of the greatest threats to native bull trout Salvelinus confluentus populations is the presence of non-native brook trout S. fontinalis. This study, conducted in two second-order Eastern Oregon streams, investigates the effect of brook trout on the feeding behavior arid diet of bull trout. Feeding behavior, microhabitat use, and...
Resource Type:: Masters Thesis
Full Text:: based on their value as food acquisition sites (Chapman 1966; Fausch and 'White 1981). Drift feeding

Creator:: Gerth, William J.
Abstract:: This study was an investigation of lotic macroinvertebrate distribution in northeastern Oregon at two different spatial and biological scales. Examination of assemblages at a limited spatial scale revealed relationships with natural and disturbance gradients and led to questions about distribution of a population at broader spatial scales. In a 16...
Resource Type:: Masters Thesis
Full Text:: specimens from the Middle Fork John Day River. and Dr. Judith Li provided data and L. pluviale specimens

Creator:: Robillard, Amanda Lynn
Abstract:: Riparian areas are eco-tones where aquatically- and terrestrially-derived insect biomass is exchanged between habitats, presenting consumers with new sources of energy, and resulting in a reciprocal subsidy. The relative contribution of energy exchange and the resulting impacts on vertebrate riparian consumers, such as fish or birds, remains poorly understood. We...
Resource Type:: Masters Thesis
Full Text:: Judith L. Li Riparian areas are eco-tones where aquatically- and terrestrially-derived insect biomass

Creator:: Langshaw, Russell B.
Abstract:: Longitudinal patterns of fish and benthic invertebrate distribution and habitat use were similar in Thomas Creek, Oregon but clarity of these patterns differed. I studied fish and aquatic invertebrates simultaneously, at multiple scales, and used multivariate statistical techniques to compare responses to the same environmental conditions. Both types of organisms...
Resource Type:: Masters Thesis
Full Text:: Lowlands. Abstract appr Judith L. Li Longitudinal patterns of fish and benthic invertebrate distribution

Creator:: Olegario, Anthony
Abstract:: Over-winter growth of juvenile salmonids may be linked to ocean survival and thus species persistence. Diet, growth, and prey available to juvenile coho, Oncorhynchus kisutch, were examined from December 2004 to April 2005 in four tributaries of the West Fork Smith River (WFSR), Oregon. Juvenile coho growth rate and condition...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________ Judith L. Li Over-winter growth of juvenile salmonids may be linked to ocean survival

Creator:: Claeson, Shannon M.
Abstract:: The purpose of this study was to understand the influence of organic material and nutrients from spawning salmon and supplemented salmon carcasses on stream food webs. My study objectives were to examine 1) assimilation of salmon-derived nutrients (SDN) by producers and consumers in the food web, 2) epilithic biofilm productivity,...
Resource Type:: Masters Thesis
Full Text:: , backrubs, smiles and generosity. CONTRIBUTION OF AUTHORS Dr. Judith Li contributed to the study design

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