Download or read book A Review of Arctic Grayling Studies in Alaska written by Robert H. Armstrong and published by . This book was released on 1982 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Review of Arctic Grayling Studies in Alaska 1952 1982 written by Robert H. Armstrong and published by . This book was released on 1986 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two scholarly contributions on the biology and reference materials (1,314 published and unpublished references) for fishes of the holarctic genus, Thymallus which in Alaska is represented by the Arctic grayling (Thymallus arctics).

Download or read book Arctic Grayling Studies in Alaska written by Robert H. Armstrong and published by . This book was released on 1982 with total page 1704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This compilation of information on arctic grayling is an attempt to bring all that has been written on the species in Alaska through 1981. The first part is a review of the most pertinent studies. The second part is a bibliography of studies conducted in North America, but excludes studies in Alaska included in the Federal Aid to Fish Restoration reports. The third part includes 160 Federal Aid to Fish Restoration reports. A subject index follows.

Download or read book Review of Arctic Grayling Studies in Alaska 1952 1982 Indexed Bibliography of the Holarctic Genus Thymallus Grayling to 1985 written by and published by . This book was released on 1986 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Review of Arctic Grayling in Alaska 1952 1982 written by Robert H. Armstrong and published by . This book was released on 1986 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Report Alaska Department of Fisheries written by Alaska. Department of Fisheries and published by . This book was released on 1956 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Report written by and published by . This book was released on 1993 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Advances on Anadromous Fish in Arctic Alaska and Canada written by Robert H. Armstrong and published by . This book was released on 1986 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fisheries Review written by and published by . This book was released on 1987 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Reintroduction of the Arctic Grayling Into Michigan Lakes and Streams written by Andrew J. Nuhfer and published by . This book was released on 1992 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Paper PNW written by and published by . This book was released on 1978 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on Alaskan Fishes written by Frederick C. Dean and published by . This book was released on 1969 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Draft Environmental Impact Statement Cumulative Impacts of Mining written by and published by . This book was released on 1989 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1984 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Arctic Grayling Enhancement in Alaska written by Cal Skaugstad and published by . This book was released on 1989 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stock Assessment of Arctic Grayling at Ugashik Lakes Alaska written by Scott C. Meyer and published by . This book was released on 1990 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arctic grayling (Thymallus arcticus) stocks were assessed at Ugashik Narrows and Outlet in Southwest Alaska during the open-water periods of 1987, 1988, and 1989. Abundance, size, and age data were collected, which were then compared with historical data for 1968-1984. The Narrows is the stream between Upper Ugashik Lake and Lower Ugashik Lake, and the Outlet is the source of the Ugashik River from Lower Ugashik Lake.

Download or read book Trophic Pathways Supporting Arctic Grayling in a Small Stream on the Arctic Coastal Plain Alaska written by Jason John McFarland and published by . This book was released on 2015 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arctic Grayling (Thymallus arcticus) are widely distributed on the Arctic Coastal Plain (ACP) of Alaska, and are one of the few upper level consumers in streams, but the trophic pathways and food resources supporting these fish are unknown. Grayling migrate each summer into small beaded streams, which are common across the landscape on the ACP, and appear to be crucial foraging grounds for these and other fishes. I investigated prey resources supporting different size classes of grayling in a beaded stream, Crea Creek, where petroleum development is being planned. The specific objectives were to measure terrestrial prey subsidies entering the stream, quantify prey ingested by Arctic Grayling and Ninespine Stickleback (Pungitius pungitius), determine if riparian plant species affect the quantity of terrestrial invertebrates ingested by grayling, and determine if prey size and type ingested were a function of predator size. Results indicated that small grayling ( 15 cm fork length (FL)) consumed mostly aquatic invertebrates (caddisflies, midges, and blackflies) early in the summer, and increasing quantities of terrestrial invertebrates (wasps, beetles, and spiders) later in summer, while larger fish ( 15 cm FL) foraged most heavily on stickleback. Riparian plant species influenced the quantity of terrestrial invertebrates entering the stream, however these differences were not reflected in fish diets. This study showed that grayling can be both highly insectivorous and piscivorous, depending upon fish size class, and that both aquatic and terrestrial invertebrates, and especially stickleback, are the main prey of grayling. These results highlight the importance of beaded streams as summer foraging habitats for grayling. Understanding prey flow dynamics in these poorly studied aquatic habitats, prior to further petroleum development and simultaneous climate change, establishes essential baseline information to interpret if and how these freshwater ecosystems may respond to a changing Arctic environment.