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Competition Between Stream Dwelling Cutthroat Trout Oncorhynchus Clarki Clarki And Coho Salmon O Kisutch
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Book Synopsis Competition Between Stream-dwelling Cutthroat Trout (Oncorhynchus Clarki Clarki) and Coho Salmon (O. Kisutch) by : John Louis Sabo
Download or read book Competition Between Stream-dwelling Cutthroat Trout (Oncorhynchus Clarki Clarki) and Coho Salmon (O. Kisutch) written by John Louis Sabo and published by . This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Coho Salmon (Oncorhynchus Kisutch) Recolonization on Resident Cutthroat Trout (O. Clarki Clarki) by : Erin Jones
Download or read book Effects of Coho Salmon (Oncorhynchus Kisutch) Recolonization on Resident Cutthroat Trout (O. Clarki Clarki) written by Erin Jones and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1901, the Landsburg Diversion Dam was established in the middle of the Cedar River in Washington, effectively cutting off access to habitat for migrating salmon populations. For a hundred years, no salmon dwelled in stream reaches above the dam, but the resident cutthroat trout populations remained. This was the case until 2003, when a fish ladder was built into the Landsburg Dam, reopening passage to spawning habitat for salmon and reintroducing the species to existing trout populations. In this project, coho salmon (Oncorhynchus kisutch) and cutthroat trout (O. clarki clarki) were used to study the competitive effects of recolonization in two neighboring streams, Rock Creek (salmon present) and Williams Creek (salmon absent), in the Cedar River watershed. Though it has been found that opening up passageways to previous spawning sites leads to successful recolonization of the target species, few studies have determined if reintroducing a species to an ecosystem that has survived without it for so long has negative effect on resident species. Previous studies determined that salmon exert dominance over cutthroat trout in certain conditions. Conversely, some recent studies have found no negative impact on cutthroat trout from coho salmon recolonization. Species population densities were computed and tested for correlation to observe temporal and spatial population trends and determine if coho negatively influence the population dynamics of cutthroat trout. Our results indicate that both species populations in Rock Creek are growing since the fish ladder was built. However, coho populations are growing more rapidly than the cutthroat trout in the shared stream. However, the trout population in Williams Creek is growing at a faster rate than that of the trout in Rock Creek. Nonparametric testing indicated that there is a significant and positive relationship between coho and cutthroat pool densities, thus refuting our hypothesis. Our results suggest that there is not a significant competitive effect as a result of the coho recolonization. Stream conditions could be improving for both species and aiding in population growth. Future testing should compare the mixed stream (salmon present) with more isolated streams (salmon absent), like Williams, to confirm if the discrepancy between cutthroat trout population growths, in habitats without salmon versus habitats with salmon, is a result of the coho presence or if it is due to improved habitat conditions in general.
Download or read book Cutthroat written by Pat Trotter and published by Univ of California Press. This book was released on 2008 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cutthroat tells the full story of the genuine native trout of the American West. This new edition, thoroughly revised and updated after 20 years, synthesizes what is currently known about one of our most interesting and colorful fishes, includes much new information on its biology and ecology, asks how it has fared in the last century, and looks toward its future. In a passionate and accessibly written narrative, Patrick Trotter, fly fisher, environmental advocate, and science consultant, details the evolution, natural history, and conservation of each of the cutthroat's races and incorporates more personal reflections on the ecology and environmental history of the West's river ecosystems. The bibliography now includes what may be the most comprehensive and complete set of references available anywhere on the cutthroat trout. Written for anglers, nature lovers, environmentalists, and students, and featuring vibrant original illustrations by Joseph Tomelleri, this is an essential reference for anyone who wants to learn more about this remarkable, beautiful, and fragile western native.
Book Synopsis Water-quality Assessment of the Puget Sound Basin, Washington by : Robert William Black
Download or read book Water-quality Assessment of the Puget Sound Basin, Washington written by Robert William Black and published by . This book was released on 1998 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis For the Proposed Issuance of a Multiple Species Incidental Take Permit for the Tacoma Water Habitat Conservation Plan, Green River Water Supply Operations and Watershed Protection, King County by :
Download or read book For the Proposed Issuance of a Multiple Species Incidental Take Permit for the Tacoma Water Habitat Conservation Plan, Green River Water Supply Operations and Watershed Protection, King County written by and published by . This book was released on 2000 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interaction of Cutthroat Trout (Oncorhynchus Clarki) and Coho Salmon (O. Kisutch) in Field and Laboratory Studies by : Pamela Elizabeth Porter
Download or read book Interaction of Cutthroat Trout (Oncorhynchus Clarki) and Coho Salmon (O. Kisutch) in Field and Laboratory Studies written by Pamela Elizabeth Porter and published by . This book was released on 1999 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water-resources Investigations Report by :
Download or read book Water-resources Investigations Report written by and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Freshwater Fishes of British Columbia by : J. D. McPhail
Download or read book The Freshwater Fishes of British Columbia written by J. D. McPhail and published by University of Alberta. This book was released on 2007-09-28 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: The threat of deteriorating habitats and a loss of biodiversity make this reference work on the freshwater fishes of British Columbia more necessary than ever before. Eighty-one comprehensive species accounts aid accurate identification and consist of an illustration, the scientific and common names of the fish, its distinguishing characteristics, taxonomic comments, geographic distribution, a life-history summary, a habitat-use summary, and conservation comments. The book is a critical resource for biologists, naturalists, management and conservation officers, anglers, and members of the public who are concerned about our natural heritage. Foreword by Joseph S. Nelson.
Book Synopsis The Behavior and Ecology of Pacific Salmon and Trout by : Thomas P. Quinn
Download or read book The Behavior and Ecology of Pacific Salmon and Trout written by Thomas P. Quinn and published by University of Washington Press. This book was released on 2018-08-06 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Behavior and Ecology of Pacific Salmon and Trout combines in-depth scientific information with outstanding photographs and original artwork to fully describe the fish species critical to the Pacific Rim. This completely revised and updated edition covers all aspects of the life cycle of these remarkable fish in the Pacific: homing migration from the open ocean through coastal waters and up rivers to their breeding grounds; courtship and reproduction; the lives of juvenile salmon and trout in rivers and lakes; migration to the sea; the structure of fish populations; and the importance of fish carcasses to the ecosystem. The book also includes information on salmon and trout transplanted outside their ranges. Fisheries expert Thomas P. Quinn writes with clarity and enthusiasm to interest a wide range of readers, including biologists, anglers, and naturalists. He provides the most current science available as well as perspectives on the past, present, and future of Pacific salmon and trout. In this edition: Over 100 beautiful color photographs of salmon and troutUpdated information on all aspects of the salmon and trout life cycleExpanded coverage of trout
Book Synopsis Stream Habitat Utilization and Behavior of Sympatric and Allopatric Wild Cutthroat Trout (Salmo Clarki) and Hatchery Coho Salmon (Oncorhynchus Kitsutch) by : Steven Edward Jacobs
Download or read book Stream Habitat Utilization and Behavior of Sympatric and Allopatric Wild Cutthroat Trout (Salmo Clarki) and Hatchery Coho Salmon (Oncorhynchus Kitsutch) written by Steven Edward Jacobs and published by . This book was released on 1981 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The behavior and stream habitat utilization of juvenile hatchery-reared coho salmon (Ovicozihynchus kisutch) and wild cutthroat trout (Salmo clarki) were examined to assess the nature of interactions between the species potentially resulting from introductions of hatchery coho salmon in streams. Habitat utilization was monitored in Mill Creek, Polk Co., Oregon by manipulating the composition of fish within three study sections to include either allopatric or sympatric populations of hatchery coho salmon and wild cutthroat trout. In allopatry, coho salmon and cutthroat trout selected feeding microhabitat that was similar in physical characteristics and exhibited extensive dietary overlap. When the two species occurred in sympatry, feeding microhabitat used by coho salmon was altered, however, that of cutthroat trout was comparable to allopatric cutthroat trout. No discernable differences in dietary composition between allopatric and sympatric fish were detected. While allopatric cutthroat trout always gained mass. ailopatric coho salmon always lost mass. Stomach fullness indices were higher for allopatric cutthroat trout than allopatric coho salmon. Sympatric cutthroat trout had comparable or greater gains of mass, indices of stomach fullness, and hepatic glycogen reserves relative to allopatric cutthroat trout. Conversely, sympatric coho salmon had greater losses of mass, reduced hepatic glycogen reserves, and apparently lower indices of stomach fullness than allopatric salmon. Behavioral observations made through the use of an in-stream viewing chamber in Berry Creek, Benton Co., Oregon, indicated that in allopatry populations of hatchery coho salmon and wild cutthroat trout were structured as linear dominance hierarchies that were organized by quantitatively and qualitatively similar aggressive interactions. In sympatry, however, cutthroat trout were more aggressive and socially dominant to coho salmon. The shift in use of micro-habitat and reduction in habitat utilization effectiveness of hatchery coho salmon in the presence of cutthroat trout can, thus, be interpreted to occur as a result of interference competition mediated through interspecific aggression.
Book Synopsis I-90 Two-way Transit and HOV Operations, King County by :
Download or read book I-90 Two-way Transit and HOV Operations, King County written by and published by . This book was released on 2004 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pattern and Mechanism of Resource Partitioning Between Stream Populations of Juvenile Coho Salmon (Oncorhynchus Kisutch) and Coastal Cutthroat Trout (Salmo Clarki Clarki) by : Gordon John Glova
Download or read book Pattern and Mechanism of Resource Partitioning Between Stream Populations of Juvenile Coho Salmon (Oncorhynchus Kisutch) and Coastal Cutthroat Trout (Salmo Clarki Clarki) written by Gordon John Glova and published by . This book was released on 1978 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study on the pattern and mechanism of resource partitioning between juveniles of sympatric populations of coho salmon and cutthroat trout in small streams on Vancouver Island, B.C., and in laboratory experiments.
Book Synopsis Fish biology in Japan: an anthology in honour of Hiroya Kawanabe by : Masahide Yuma
Download or read book Fish biology in Japan: an anthology in honour of Hiroya Kawanabe written by Masahide Yuma and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a collection of papers assembled to honor Hiroya Kawanabe, an eminent Japanese ecologist who studied fishes and other organisms. Kawanabe retired from his position as Professor at Kyoto University in March 1996. In the first section of the volume his career is highlighted by a biography describing his life and work, a bibliography of his more than 750 lifetime publications, and a personal interview with a colleague who has been close to his work throughout his career. Papers in the second section of the volume include invited reviews of research on fish ecology in Japan, a historical overview of freshwater fishes of Japan, and recent studies on sex change among reef fishes. The 24 papers in the third section of the volume by Japanese fish biologists and their collaborators cover a wide variety of topics on fish biology. These include papers on evolution, genetics, systematics, reproductive biology, early life history, life history variation, behavior, physiology, ecology, and zoogeography. These papers address fishes from lentic, lotic, and marine ecosystems in Japan, Asia, Africa, North America, and in some cases worldwide. One of Hiroya Kawanabe's most brilliant and lasting contributions was to foster collaboration between Japanese ecologists and other scientists.
Book Synopsis Research in Fisheries by : University of Washington. School of Fisheries
Download or read book Research in Fisheries written by University of Washington. School of Fisheries and published by . This book was released on 1995 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Canadian Journal of Fisheries and Aquatic Sciences by :
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2013 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sea-run Cutthroat Trout by : James D. Hall
Download or read book Sea-run Cutthroat Trout written by James D. Hall and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and Characteristics of an Isolated Population of Coastal Cutthroat Trout (Oncorhynchus Clarki) in Streams of Triangle Lake Basin, Oregon by : Steven M. Hurley
Download or read book Distribution and Characteristics of an Isolated Population of Coastal Cutthroat Trout (Oncorhynchus Clarki) in Streams of Triangle Lake Basin, Oregon written by Steven M. Hurley and published by . This book was released on 1993 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focused on features of a genetically isolated population of cutthroat trout (Oncorhynchus clarki) in the Triangle Lake basin of coastal Oregon. A falls at the outlet of Triangle Lake has blocked upstream migration of trout and anadromous salmonids into the basin. Cutthroat trout were found throughout the six study streams of the Triangle Lake basin in association with other native fishes and introduced warmwater fishes. Warmwater species (e.g. Centrarchidae) were restricted largely to the lakes of Triangle Lake basin, and did not comprise a significant part of the stream fish fauna. Salmonids and cottids dominated the upper forested reaches of the basin, whereas nonsalmonids dominated the lower reaches. The middle reaches contained a transitional fish community between the upper and lower reaches. Reach type was a major factor influencing cutthroat trout density and size distribution. Areal densities of cutthroat trout were highest in the upper reaches and lowest in the lower reaches with the exception of 0+ cutthroat trout, which occurred at similar densities in all reaches. The highest frequency of 1+ cutthroat trout occurred in the middle reaches, whereas the highest frequency of 0+ cutthroat occurred in the lower reaches. Within reaches, channel unit type influenced the density and age structure of cutthroat trout. Pools and rapids had the highest densities of cutthroat trout, whereas riffles, glides, and cascades had lower densities. Larger trout were found primarily in pools and rapids. Planted steelhead fry (Oncorhynchus mykiss) were found in two streams, Congdon Creek and Lake Creek. Although most steelhead fry leave the basin as smolts, some steelhead appear to become resident and may hybridize with native cutthroat trout. Cutthroat trout spawning was observed from late December 1987 through late May 1988. Differences in the time and place of spawning may serve to genetically isolate two populations of cutthroat trout in Triangle Lake basin. One population may be lake dwelling as adults and spawn lower in the basin in late spring. The other population may be stream dwelling and spawn in the winter during higher flows, which allows them to spawn in the upper reaches of the basin.
