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Book BIOLOGICAL CHARACTERISTICS AND POPULATION STATUS OF STEELHEAD ONCORHYNCHUS MYKISS IN SOUTHEAST GENERAL TECHNICAL REPORT PNW GTR 407

Download or read book BIOLOGICAL CHARACTERISTICS AND POPULATION STATUS OF STEELHEAD ONCORHYNCHUS MYKISS IN SOUTHEAST GENERAL TECHNICAL REPORT PNW GTR 407 written by United States. Forest Service and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book General Technical Report PNW GTR

Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1999 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book General Technical Report PSW

Download or read book General Technical Report PSW written by and published by . This book was released on 1978 with total page 1188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Advances in the Ecology of Stream Dwelling Salmonids

Download or read book Advances in the Ecology of Stream Dwelling Salmonids written by Javier Lobon-Cervia and published by Springer Nature. This book was released on with total page 733 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Review of the Status of Steelhead Oncorhynchus Mykiss from Washington Idaho Oregon and California Under the U S Endangered Species Act

Download or read book Review of the Status of Steelhead Oncorhynchus Mykiss from Washington Idaho Oregon and California Under the U S Endangered Species Act written by Steelhead Biological Review Team (U.S.) and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Year in Review for the Pacific Northwest Research Station

Download or read book A Year in Review for the Pacific Northwest Research Station written by Pacific Northwest Research Station (Portland, Or.) and published by . This book was released on 1999 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Wild Steelhead

    Wild Steelhead

    Book Details:
  • Author : John Donald McPhail
  • Publisher : Frank Amato Publications
  • Release : 2016-04-26
  • ISBN : 9781571885111
  • Pages : 0 pages

Download or read book Wild Steelhead written by John Donald McPhail and published by Frank Amato Publications. This book was released on 2016-04-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biologists have uncovered a wealth of information on steelhead that is very useful to fishermen, but it's spread throughout scientific journals and is often written in complicated language - until now! J.D. McPhail has studied the biology and ecology of Northwestern freshwater fishes since the 1960s. An angler himself, McPhail understands what's important to an angler and shares information that will make you a better, more informed fisherman.

Book Status Review of Puget Sound Steelhead Oncorhynchus Mykiss

Download or read book Status Review of Puget Sound Steelhead Oncorhynchus Mykiss written by Jeffrey John Hard and published by . This book was released on 2007 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Early Marine Growth Patterns of Situk River Steelhead Oncorhynchus Mykiss

Download or read book Early Marine Growth Patterns of Situk River Steelhead Oncorhynchus Mykiss written by Matthew R. Catterson and published by . This book was released on 2017 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steelhead Oncorhynchus mykiss exhibit complex life-history patterns described by variable freshwater and marine residency periods, maturation patterns, and reproductive characteristics. Over 300 small populations of Steelhead are present in Southeast Alaska, and similar trends in abundance among these populations suggest the influence of population-regulating forces operating on a regional scale. The Situk River, near Yakutat, Alaska, supports the largest known population of Steelhead in Alaska. Stock assessment studies on this river have collected the longest set of biological data and scale samples for Steelhead in the state. For this study, retrospective scale pattern analysis of samples from Situk River Steelhead was synthesized with regional abundance information to investigate patterns in early marine growth among different life-history and demographic groups, as well as to explore linkages between growth, abundance, and marine environmental variables. Positive correlations were identified between freshwater growth, first ocean-year growth, and adult length, while first ocean-year growth was negatively correlated with second ocean-year growth. Early maturing Steelhead were found to have increased first ocean-year growth and reduced adult length relative to later maturing Steelhead, confirming connections between growth and maturation. Correlations in abundance among Southeast Alaska Steelhead populations suggest that marine and climatic drivers may impact these populations in a regionally coherent manner. Correlations among patterns in abundance also varied along a distance gradient: populations located closer to the Situk River were more correlated with the Situk River than more distant populations. Positive relationships between Gulf of Alaska sea surface temperature, North Pacific Gyre Oscillation, and Situk River Steelhead abundance further supported the importance of climate-driven marine conditions to Steelhead productivity. While conservation concerns for Steelhead in Southeast Alaska are currently minimal, proactive investigations into life-history diversity and population linkages may become more relevant with increased marine ecosystem variability related to climate change.

Book Viability Criteria for Steelhead Within the Puget Sound Distinct Population Segment

Download or read book Viability Criteria for Steelhead Within the Puget Sound Distinct Population Segment written by Jeffrey John Hard and published by . This book was released on 2015 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Under the U.S. Endangered Species Act (ESA), the National Oceanographic and Atmospheric Administration's National Marine Fisheries Service (NMFS) is required to identify measurable and objective delisting criteria as part of recovery planning. These delisting criteria must describe the conditions under which a listed species or distinct population segment (DPS) is no longer in danger of extinction (endangered) or likely to become so in the foreseeable future (threatened). We define a viable DPS as one that is unlikely to be at risk of extinction in the foreseeable future; for this purpose, we adopted the viable salmonid population (VSP) criterion of a 100-year timeline (McElhany et al. 2000, Viable Salmon Populations and the Recovery of Evolutionarily Significant Units, NOAA Tech. Memo. NMFS-NWFSC-42) to evaluate risk of extinction. Ultimately, the identification of delisting criteria requires the consideration of technical analyses relating to viability, which are contained in this report, and policy decisions such as acceptable levels of risk, which are not. It presents the biological viability criteria recommended by the Puget Sound Steelhead Technical Recovery Team (PSS TRT). The framework and the analyses it supports do not set targets for delisting, nor do they explicitly identify specific populations or groups of populations for recovery priority. Rather, the framework and associated analyses are meant to provide a technical foundation for those charged with recovery of listed steelhead (Oncorhynchus mykiss) in Puget Sound, from which they can develop effective recovery plans at the watershed scale (and higher) that are based on biologically meaningful criteria."--Page xxi.