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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"coho"”.
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The importance of early life history diversity in coho salmon
… River have potentially compromised diversity in coho salmon. Diversity was interpreted from age and early rearing history of mature coho that returned to spawn in 2009 (n=28). Life history groups were interpreted through a visual analysis of the micro-chemistry profiles in the otoliths. There …
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Isolation and Characterization of Enolase From Coho Salmon (Oncorhynchus Kisutch)
Made available in DSpace on 2014-12-09T17:35:57Z (GMT). No. of bitstreams: 1 6808209.pdf: 4208564 bytes, checksum: 27c6790a7b0bd147c4d5e526bebd1a52 (MD5) Previous issue date: 1967
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An examination of differential survival in downstream migrating coho salmon smolts
… mortality during the downstream migration of coho salmon (0. kisutch) smolts by trapping and marking smolts high in the watershed and recapturing the fish near the ocean. Four study sites were used, two in the upper watershed and two in the lower watershed. At both distances, lake-type and …
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Recovery of Oregon Coast Coho Salmon (Onchorhynchus kitsutch) through Restoration of Freshwater Habitats
… Coast of the United States. The Oregon Coast coho salmon Evolutionary Significant Unit (ESU) was listed as threatened under the Endangered Species Act in February 2008. The total number of adult coho salmon returning to Oregon Coast rivers today are between 5-20% of historic levels. Since the …
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Detección de un polimorfismo marcador de sexo mediante CRISPR-CAS 12A en salmón coho
En salmon Coho se ha identificado un marcador genético asociado al sexo que corresponde a la variación estructural del gen GH-2. Esta variante permite determinar el sexo considerando diversas metodologías, tales como PCR asociado a un ensayo de enzima de restricción y “high resolution melting” …
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Corticosteroid receptor dynamics and smolting in hatchery-reared and wild coho salmon (Oncorhynchus kisutch)
… in corticosteroid receptors (CR) in the gills of coho salmon (Oncorhynchus kisutch) were examined to determine what effect smolting and rearing environment had on gill tissue sensitivity to cortisol. CR concentration and affinity were found to change seasonally with the increases in gill …
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Impacts of sedimentation on early-life phenotypes and gene expression in coho salmon (Oncorhynchus kisutch)
… on phenotypic outcomes and gene expression in coho salmon (Oncorhynchus kisutch). I obtained O. kisutch eggs from the Sugsaw Hatchery located on Vancouver Island, BC, and reared them in one of three substrate (0% fine sediment, 10% fine sediment, 20% fine sediment) or one of two no substrate …
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Resource use and life history patterns of juvenile Coho and Chinook salmon in an Alaskan estuary
… the resource partitioning between juvenile Coho and Chinook salmon, (2) determine which age classes use the estuary and for how long, (3) examine the tidal movement of juvenile salmon, and (4) utilize a social network analysis to explore the social structure of juvenile Coho Salmon. Coho and …
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Detecting Change in Central California Coast Coho Salmon Habitat in Scotts Creek, California, from 1997–2013
… supports the southernmost extant population of Coho Salmon (<em>Oncorhynchus kisutch</em>) in North America. In 1997, the California Department of Fish and Game (now Fish and Wildlife) conducted an extensive habitat typing survey of mainstem Scotts Creek, describing all habitat units from the …
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Influence of Early Life Stage Hatchery Enhancement Practices on Maternal Reproductive Investment in Coho Salmon (Oncorhynchus kisutch)
… reproductive traits in 171 mature female Coho Salmon (Oncorhynchus kisutch) from four hatchery treatment groups and a wild-origin control at the Nitinat River Hatchery on Vancouver Island, B.C. I evaluated body size, fecundity, ovary weight, egg weight, egg volume, and proximate egg …
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Lepeophtheirus salmonis, parasitizing three species of pacific salmon (Oncorhynchus spp.): host variations in load, morphology, fecundity, and genetics of the salmon louse
… (p < 0.001) when compared to lice that infected coho salmon (n = 44) or pink salmon (n=45). Lice that infected coho and pink salmon were not statistically different in body length (p = 0.213), cephalothorax length (p = 0.996), or cephalothorax width (p = 0.149). Also, L. salmonis produced fewer …
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Chemical, Physical and Sensorial Compositions of Farmed and Wild Yellow Perch (Perca flavescens), Southern Flounder (Paralichthys lethostigma) and Coho Salmon (Oncorhynchus kisutch)
… Wild, farmed and growth-enhanced transgenic coho salmon (market-size) were compared, regarding their body composition and nutritional value. All treatments showed highest lipid levels in the ventral frontal sections and lowest in the tail (p ≤ 0.05). Overall wild fish showed lower lipid …
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The influence of chlorinated hydrocarbon residues and rearing temperature on survival and growth of coho salmon and rainbow trout sac fry : a thesis
Thesis (M.A.)--Michigan State University,
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Life history and bioenergetic modelling of adfluvial-lacustrine coastal cutthroat trout predation in the Capilano Reservoir : implications for endangered steelhead, coho salmon and future holistic watershed management strategies
… adult trout in the reservoir consumed 6.4% of coho (O. kisutch) smolt production in 2010. No evidence of cutthroat predation on juvenile steelhead out-migrants was detected, and a gape prey maximum of 36% of predator body length was found. Moderate hybridization rates between cutthroat and …
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Hydrologic regimes in a changing climate : characteristics and responses of wetland and off-channel habitat along the Telkwa River and the implications for juvenile coho salmon (Oncorhynchus kisutch)
… the TR's hydrologic regime and juvenile Pacific coho salmon (Oncorhynchus kisutch). Current and historic parameters, including: local climate; glacier mass; discharge; water temperature; and the characteristics of adjacent wetland and off-channel habitats (WOHs) utilized by O. kisutch were …
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The Ecology of Parafluvial Ponds on a Salmon River
… taxa with 15 unique to ponds. Salmon, primarily coho (Oncorhyncus kisutch), were most abundant in ponds. Fish populations ranged from 0 to 772 in the 12 main study ponds. The mean area of ponds was small (44.1m2), but this did not inhibit growth and high survival. Coho consistently fed on small …
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The Ecology of Parafluvial Ponds on a Salmon River
… taxa with 15 unique to ponds. Salmon, primarily coho (Oncorhyncus kisutch), were most abundant in ponds. Fish populations ranged from 0 to 772 in the 12 main study ponds. The mean area of ponds was small (44.1m2), but this did not inhibit growth and high survival. Coho consistently fed on small …
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Sexual maturation in sea- and freshwater phases of Pacific salmonids and investigations of reproductive hormone involvement in osmoregulatory adaptation
… was compared in post-spawning steelhead and coho salmon, O. kisutch, transferred from fresh water to brackish holding facilities. All hormones declined to low levels in steelhead while still in fresh water, within 3 weeks of spawning, but persisted at spawning levels for at least 6 weeks in …
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