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Abundance Of Arctic Grayling In A 30 Km Reach Of The Wapiti River Alberta
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Book Synopsis Abundance of Arctic Grayling in a 30-Km Reach of the Wapiti River, Alberta by : John Tchir
Download or read book Abundance of Arctic Grayling in a 30-Km Reach of the Wapiti River, Alberta written by John Tchir and published by Alberta Conservation Association. This book was released on 2004 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cumulative Effects Thresholds for Arctic Grayling in the Wapiti River Watershed by : Adam Paul Norris
Download or read book Cumulative Effects Thresholds for Arctic Grayling in the Wapiti River Watershed written by Adam Paul Norris and published by . This book was released on 2012 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intensity and types of land use have changed rapidly in the last century and in north-western Alberta this has coincided with the decline of Wapiti River watershed Arctic Grayling (Thymallus arcticus) populations. Data on diurnal dissolved oxygen (DO), chemical and physical stream habitat data were collected in nine sub-watersheds of the Wapiti River with historically abundant Arctic Grayling populations. Levels and fluctuations of DO and temperature were related to the status of populations; five of the nine streams had higher temperatures and lower DO during summer, anoxic conditions during winter and extirpated populations. Amount of disturbed land and road density within sub-watersheds were inversely related to DO levels and population status. Cumulative effects modelling suggests a possible mechanism for these relationships is increased phosphorous runoff, leading to impaired habitat. These relationships and thresholds may be used as a management tool to maintain or restore Arctic Grayling and other stream fishes.
Book Synopsis Abundance and Distribution of Arctic Grayling in the Upper Little Smoky River, Alberta, 2007. 2009 by : Kevin Fitzsimmons
Download or read book Abundance and Distribution of Arctic Grayling in the Upper Little Smoky River, Alberta, 2007. 2009 written by Kevin Fitzsimmons and published by . This book was released on 2009 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abundance and Distribution of Arctic Grayling in the Upper Little Smoky River, Alberta, 2007 by : Kevin Fitzsimmons
Download or read book Abundance and Distribution of Arctic Grayling in the Upper Little Smoky River, Alberta, 2007 written by Kevin Fitzsimmons and published by . This book was released on 2009 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stock Assessment of Arctic Grayling in Hungry Hollow Creek and Middle Fork Gulkana River, 2019 by : Corey J. Schwanke
Download or read book Stock Assessment of Arctic Grayling in Hungry Hollow Creek and Middle Fork Gulkana River, 2019 written by Corey J. Schwanke and published by . This book was released on 2021 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 2-event mark–recapture study was conducted to estimate the abundance of Arctic grayling in a 9-river kilometer (RKM) reach of Lower Hungry Hollow Creek and Middle Fork Gulkana River in 2019. Intensive hook and line sampling occurred 18–22 July for the first event and 26–29 July for the second event. A total of 2,469 Arctic grayling ≥270 mm fork length (FL) were captured and marked during the first event and 2,270 were captured and examined during the second event, 204 of which were marked during the first event. A length-stratified Bailey estimator was used to estimate the abundance of Arctic grayling ≥270 mm FL in the 9-RKM study area and, because of uncertainty associated with movement at the lower end of this area, in a truncated portion of the study area encompassing only the lower 6-RKM of Hungry Hollow Creek. The estimated abundance of Arctic graying ≥270 mm FL was 40,952 (95% CI = 29,732–52,732) in the 9-RKM study area and 28,894 (95% CI = 17,975–39,813) in the 6-RKM area. Because precision requirements for these estimates were not met due to low capture probabilities for fish 270–289 mm FL, abundance was also more precisely estimated for Arctic grayling ≥290 mm FL. The estimated abundances of Arctic grayling ≥290 mm FL in the 9-RKM and 6-RKM study areas were 16,356 (95% CI = 14,050–18,663) and 10,416 (95% CI = 8,774–12,058) fish, respectively. Individual length strata abundance estimates are presented in this report. Length compositions for Arctic grayling ≥270 mm FL were very similar in both study areas, with fish 270–289 mm accounting for >60% of the estimated population, whereas larger fish (i.e., fish ≥320 mm FL) accounted for
Book Synopsis Abundance and Length Composition of Arctic Grayling in the Fish River, 2007 by : Tim Viavant
Download or read book Abundance and Length Composition of Arctic Grayling in the Fish River, 2007 written by Tim Viavant and published by . This book was released on 2014 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A two-event, mark-recapture experiment was conducted within a 25-km (15.5 mi) section of the Fish River during June 2007 to estimate abundance and lenght composition of Arctic grayling Thymallus arcticus.
Book Synopsis Abundance and Length Composition of Arctic Grayling in the Niukluk River, 2005 by : Andrew D. Gryska
Download or read book Abundance and Length Composition of Arctic Grayling in the Niukluk River, 2005 written by Andrew D. Gryska and published by . This book was released on 2007 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report discusses a mark-recapture experiment that was conducted along a 25.0-km (15.5-mi) section of the Niukluk River during June 2005 to estimate abundance and length and age compositions of Arctic grayling, Thymallus arcticus.
Book Synopsis Natural Regions and Subregions of Alberta by : David J. Downing
Download or read book Natural Regions and Subregions of Alberta written by David J. Downing and published by . This book was released on 2006-01-01 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents the climatic, physiographic, vegetation, soil, wildlife and land use attributes that characterize each natural region and subregion. It has been organized into four parts: part one outlines national region and subregion concepts, part two describes methods used to generate climate statistics, part three presents a comparative analysis of selected climate statistics to facilitate comparison of natural regions and subregions, and part four presents detailed climatic, vegetation, soils and physiographic descriptions for six natural regions and twenty-one natural subregions currently recognized in Alberta.
Book Synopsis The Fishes of Alberta by : Joseph S. Nelson
Download or read book The Fishes of Alberta written by Joseph S. Nelson and published by University of Alberta. This book was released on 1992 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information on the 59 species of fish found in Alberta, information on identification, distribution, biology, taxonomic history, and angling.
Book Synopsis Habitat Suitability Index Models by : Robert J. Stuber
Download or read book Habitat Suitability Index Models written by Robert J. Stuber and published by . This book was released on 1982 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Threatened Freshwater Fishes of Europe by : Anton Lelek
Download or read book Threatened Freshwater Fishes of Europe written by Anton Lelek and published by . This book was released on 1980 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Data Mining for Global Trends in Mountain Biodiversity by : Eva M. Spehn
Download or read book Data Mining for Global Trends in Mountain Biodiversity written by Eva M. Spehn and published by CRC Press. This book was released on 2009-09-28 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to advances in electronic archiving of biodiversity data and the digitization of climate and other geophysical data, a new era in biogeography, functional ecology, and evolutionary ecology has begun. In Data Mining for Global Trends in Mountain Biodiversity, Christian Korner, Eva M. Spehn, and a team of experts from the Global Mountain Biodi
Book Synopsis Ecological Regions of North America by :
Download or read book Ecological Regions of North America written by and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.
Book Synopsis Atlas of British Columbia by : Albert L. Farley
Download or read book Atlas of British Columbia written by Albert L. Farley and published by University of Washington Press. This book was released on 1979 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlas of British Columbia is the first majorcartographic study of the province to be published since 1956. Createdthrough close co-operation between government, the private sector, andthe unviersity, it is the successor to the British Columbia Atlasof Resources which, for twenty years, has been the standardreference work used by schools, industry, government, and the generalpublic. The most recent data available have been used to give an accurate,comprehensive picture of British Columbia's economy as it is today.Comparative studies show the development orf the province'smanpower and natural resources as well as the rapid growth of industryand technology since the beginning of the century. In party, theemphasis of the atlas reflects thousands of specific requests forup-to-date resource information rercorded over the last ten years.
Download or read book The Larch Sawfly written by and published by . This book was released on 2001 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encyclopedia of Prehistory by : Peter N. Peregrine
Download or read book Encyclopedia of Prehistory written by Peter N. Peregrine and published by Springer. This book was released on 2001-02-28 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Prehistory represents also defined by a somewhat different set of an attempt to provide basic information sociocultural characteristics than are eth on all archaeologically known cultures, nological cultures. Major traditions are covering the entire globe and the entire defined based on common subsistence prehistory of humankind. It is designed as practices, sociopolitical organization, and a tool to assist in doing comparative material industries, but language, ideology, research on the peoples of the past. Most and kinship ties play little or no part in of the entries are written by the world's their definition because they are virtually foremost experts on the particular areas unrecoverable from archaeological con and time periods. texts. In contrast, language, ideology, and The Encyclopedia is organized accord kinship ties are central to defining ethno ing to major traditions. A major tradition logical cultures. is defined as a group of populations sharing There are three types of entries in the similar subsistence practices, technology, Encyclopedia: the major tradition entry, and forms of sociopolitical organization, the regional sub tradition entry, and the which are spatially contiguous over a rela site entry. Each contains different types of tively large area and which endure tempo information, and each is intended to be rally for a relatively long period. Minimal used in a different way.
Book Synopsis Biology and Culture of Percid Fishes by : Patrick Kestemont
Download or read book Biology and Culture of Percid Fishes written by Patrick Kestemont and published by Springer. This book was released on 2015-10-15 with total page 897 pages. Available in PDF, EPUB and Kindle. Book excerpt: This extensive work focuses on an important group of temperate freshwater fish, approaching the topic from the perspectives of both biology and aquaculture. It compiles the latest research on fish belonging to the Percidae family and describes in detail all biological aspects relevant to the culture of different species, including ecology, reproductive physiology, feeding and nutrition, genetics, immunology, stress physiology and behavior. It also considers commercial fish production and fish farming topics, such as protocols for induction of gonad maturation, spawning, incubation and larval rearing. Expert contributors not only provide a critical peer review of scientific literature but also original research data, and identify effective practical techniques. The book features chapters on systematics, ecology and evolution, on development, metabolism and husbandry of early life stages and on growth, metabolism, behavior and husbandry of juvenile and grow-out stages. Furthermore, the authors consider genetic improvement and domestication, as well as diseases and health management, crucial to the readers' understanding of these fish and how they can be cultured. Both researchers of percid fish biology and aquaculture professionals who are considering intensive and pond culture of percid fishes will value this timely and comprehensive handbook.)
