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Effects of a 4-inch suction dredge on benthic macroinvertebrates in southwestern Oregon

Creator:: Perez, Diana H.
Abstract:: Effects of 4-inch (10.16 cm) suction dredge mining on benthic macroinvertebrates in 3rd to 4th order streams were investigated in 1996 by evaluating four mining claim operations in Althouse Creek, Sucker Creek, and Taylor Creek in southwestern Oregon's Rogue River basin. The effects were site-specific. The study showed no significant...
Resource Type:: Masters Thesis
Full Text:: macroinvertebrates in southwestern Oregon AN ABSTRACT OF THE THESIS OF Diana H. Perez for the degree ofMaster of

Agricultural impacts on amphibian survival, growth, and distributions

Creator:: Baker, Nick J.
Abstract:: The potential impact of chemical contaminants and conservation practices on amphibians in agricultural landscapes is a key research topic globally. Amphibians represent a common group in many freshwater systems and are currently experiencing worldwide population declines. Global amphibian declines may be attributed to a number of causes, including habitat loss,...
Resource Type:: Masters Thesis

Juvenile Coho Salmon (Oncorhynchus kisutch) Diet in Brackish and Freshwater Habitats in the Stream-estuary Ecotones of Coos Bay, Oregon

Creator:: Mackereth, Kailan F.
Abstract:: Loss of lowland estuarine and freshwater off-channel habitats along the Pacific Northwest coast has contributed to the decline of salmonid populations. These habitats serve as nursery grounds for juvenile salmonids providing them with food, winter shelter, and a transition zone between freshwater and saltwater. Lowland areas have undergone anthropogenic alterations...
Resource Type:: Masters Thesis

Habitat use, movement, and life history variation of coastal cutthroat trout, Oncorhynchus clarkii clarkii, in the Salmon River estuary, Oregon

Creator:: Krentz, Lisa K.
Abstract:: Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii may be highly dependent on estuaries, passing through them multiple times during their lifetime. However, few studies have investigated estuarine use by coastal cutthroat trout and it is often thought that estuaries serve primarily as migration corridors rather than rearing areas. We used...
Resource Type:: Masters Thesis

Nile tilapia (Oreochromis niloticus) production in tropical microcosms fertilized with rabbit excreta

Creator:: Franco, Luis
Abstract:: This investigation explored the use of microcosms as a tool for studying the dynamics of tropical aquaculture ponds. The potential use of rabbit excreta as a pond fertilizer in integrated farming systems was also investigated. Twelve insulated fiber glass tanks were utilized as microcosms to simulate earthen ponds. Seven hand-sexed...
Resource Type:: Masters Thesis

Distribution, habitat use, and growth of juvenile Chinook salmon in the Metolius River Basin, Oregon

Creator:: Lovtang, Jens C.
Abstract:: Chinook salmon (Oncorhynchus tshawytscha) have been absent from their historic spawning and rearing grounds in the Metolius River Basin in central Oregon since 1968, when fish passage was terminated at the Pelton Round Butte Hydroelectric Project on the Deschutes River. Plans have been developed to reestablish passage of anadromous fish...
Resource Type:: Masters Thesis
Full Text:: growth obtained between 15-19° C, depending on ration size (Diana 1994). The potential or "scope" for

Discharge and its consequences to physical habitat and trout populations in the Deschutes River of central Oregon

Creator:: Walks, Deborah J.
Resource Type:: Masters Thesis
Full Text:: preferences: between about 11°C to 19°C (Diana 1995). Optimum water temperature for brown trout is

Spatial Variation in Ecosystem Carbon Stocks and Emissions Resulting from Land-use Conversion: Two Studies in Mangrove Forests of the Dominican Republic

Creator:: Giovannoni, Leila R.
Abstract:: Mangrove forests store more organic carbon across ecosystem carbon pools than most other coastal and forested ecosystems, and are subject to high global rates of deforestation. For these reasons, they are recognized as prime candidates for inclusion in climate change mitigation strategies. However, the ecological drivers of regional and micro-scale...
Resource Type:: Masters Thesis
Full Text:: Options. Center for International Forestry Research, Bogor. Arifanti, V. B., Kauffman, J.B

Predator assemblages in old-growth and logged sections of small Cascade streams

Creator:: Murphy, Michael Louis
Resource Type:: Masters Thesis
Full Text:: CALLINEURIA I I PERLINOIDES -I RYACOPHILA ALLOPERLA i iOo i3Ooo Id)000 IOO,000 DRY WT (mg) V Fig. 4

Fish production and related limnology in two experimental ponds as influenced by fertilization

Creator:: Goodwin, Chester Lynn
Abstract:: The merits of fertilizing warmwater fish ponds with dry organic manure were studied from October, 1964 to November, 1965 using two experimental ponds in the Willamette Valley. One pond (pond II) was fertilized with urea and single superphosphate and the other (pond III) was fertilized with dried manure as well...
Resource Type:: Masters Thesis
Full Text:: (ponds I, II, III and IV) were excavated in 1958 and the upper four (ponds V, VI, VII and VIII) in 1962

ScholarsArchive@OSU

Effects of a 4-inch suction dredge on benthic macroinvertebrates in southwestern Oregon

Agricultural impacts on amphibian survival, growth, and distributions

Juvenile Coho Salmon (Oncorhynchus kisutch) Diet in Brackish and Freshwater Habitats in the Stream-estuary Ecotones of Coos Bay, Oregon

Habitat use, movement, and life history variation of coastal cutthroat trout, Oncorhynchus clarkii clarkii, in the Salmon River estuary, Oregon

Nile tilapia (Oreochromis niloticus) production in tropical microcosms fertilized with rabbit excreta

Distribution, habitat use, and growth of juvenile Chinook salmon in the Metolius River Basin, Oregon

Discharge and its consequences to physical habitat and trout populations in the Deschutes River of central Oregon

Spatial Variation in Ecosystem Carbon Stocks and Emissions Resulting from Land-use Conversion: Two Studies in Mangrove Forests of the Dominican Republic

Predator assemblages in old-growth and logged sections of small Cascade streams

Fish production and related limnology in two experimental ponds as influenced by fertilization

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