Index Catalog // ScholarsArchive@OSU

Creator:: Brumo, Abel F.
Abstract:: Recently, there has been concern over the decline of the Pacific lamprey, Lampetra tridentata, in the northwestern United States. However, effective management has been impeded by data gaps in basic biology, especially in the early life stages. Consequently, in 2004 and 2005 I examined reproductive ecology, larval recruitment, and lamprey...
Resource Type:: Masters Thesis
Full Text:: Pacific Lampreys in the South Fork Coquille River, Oregon Abstract approved

Creator:: Whitmire, Curt E.
Abstract:: Dramatic declines in many species of demersal fishes off the West Coast have resulted in the designation of nine commercially important species as being overfished. While the causes of those declines are not clearly understood, the fact remains that a paucity of life history and abundance data exists for many...
Resource Type:: Masters Thesis
Full Text:: off the coast of Oregon. Examples include Coquille, Stonewall, Daisy, and the largest Heceta Bank

Creator:: Lanier, Andrew S.
Abstract:: Multibeam sonar data was collected on Nehalem Bank, off of the Oregon Coast with the purpose of increasing the spatial resolution of our knowledge of the area and delineating seafloor habitats. The system used was the Kongsberg Simrad EM-300 operating at 30 kHz. The data set collected includes both topographic...
Resource Type:: Masters Thesis
Full Text:: Bank, off of the Oregon Coast with the purpose of increasing the spatial resolution of our knowledge

Creator:: Shaff, Courtney D.
Abstract:: Stream restoration techniques in western Oregon and Washington include physical habitat restoration and more recently the addition of salmon carcasses to improve food availability for juvenile fish. Although both are common practices, few studies have examined the effects of carcass placement and the interaction of nutrient enrichment with physical habitat...
Resource Type:: Masters Thesis
Full Text:: Coos and Coquille basins of Oregon differentiated between streams with only natural spawners and

Creator:: Duncan, Corinne M.
Abstract:: Expansion of Juniperus occidentalis into the sagebrush steppe has resulted in significant changes in understory composition. A consequence of increased J. occidentalis dominance may be a depletion of the seed bank. The potential for depletion is problematic because a reduction in the amount of species available from the seed bank...
Resource Type:: Masters Thesis
Full Text:: Viable Seed Bank Composition under Western Juniper in

Creator:: Sagar, Jina P.
Abstract:: Barriers to the movement of aquatic organisms can increase the genetic and spatial isolation of populations and may decrease the viability of these regional populations. Focus on culvert passage issues has increased as federal agencies attempt to inventory and replace road-crossing stream culverts that are barriers to the movement of...
Resource Type:: Masters Thesis

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