Evaluation of the Arctic Grayling Stock in the Gulkana River, 1998 PDF Download

Author: James T. Fish
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 24

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Author:
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 574

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Author: Fritz Funk
Publisher: Alaska Sea Grant College Program
ISBN:
Category : Nature
Languages : en
Pages : 1060

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Book Description
This volume bring fisheries modelers up to date on stock assessment modeling as a research tool. It has 55 peer-reviewed papers from all parts of the world, presented at the 1997 symposium Fishery Stock Assessment Models for the 21st Century, in Anchorage, Alaska.

Author: Robin Dublin
Publisher:
ISBN: 9781890692100
Category :
Languages : en
Pages : 250

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Covers elements of alpine and lowland ecosystems, the role of wind, cold, snow and permafrost, animal and plant survival techniques, tundra food chains and food webs, the fragility and resistance of plants, animals and the land, and conservation issue investigations.

Author: Mary J. Nickum
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 676

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Author: Andrew D. Gryska
Publisher:
ISBN:
Category : Arctic grayling
Languages : en
Pages : 42

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Book Description
The Gulkana River, located along the Richardson Highway near Glennallen, Alaska, supports the largest Arctic grayling (Thymallus arcticus) fishery in the Upper Copper Upper Susitna Management Area. Most of the fishing effort and harvest occurs in a 75 km section of the mainstem river between Paxson Lake and Sourdough Creek. From 1989 until present, the Arctic grayling daily bag limit downstream of Paxon Lake has been 5 fish, only one of which can be over 14 inches. To evaluate the effectiveness of this regulation, a stock assessment was performed for the Arctic grayling population inhabiting the 75 km section in July and August 2017. Mark-recapture techniques were used to estimate abundance and length composition of the population. Using hook and line gear, a total of 3,002 Arctic grayling ≥240 mm fork length (FL) were captured; however, too few fish were recaptured (m2 = 6) to estimate abundance without bias. Data collected during this study was compared to previous stock assessments, and it was concluded that the mainstem Gulkana River does not support substantial numbers of large Arctic grayling during the summer. Given the composition of the population (numerous Arctic grayling

Author: David Huddart
Publisher: Springer Nature
ISBN: 3030186237
Category : Science
Languages : en
Pages : 475

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This textbook presents a comprehensive overview of the environmental impacts of various types of adventure tourism and how these can be best managed. This volume follows on from the authors previous textbook – ‘Outdoor Recreation: Environmental Impacts and Management’ and continues the aim of developing a deeper understanding of how tourist numbers impact the environment and to provide practical solutions to these problems. Combining their own first-hand experience and research with extensive literature review the authors' present several popular adventure tourism destinations from across the globe, including the Arctic, the Himalayas, Africa, Australia and Scotland as case studies. Chapters cover the particular challenges faced by each region: including impacts on animals and birds; the spread of invasive plant species and diseases; trail impacts on vegetation; impacts on geological, historical and archaeological sites and pollution and waste issues. A discussion and evaluation of the possible management actions for minimising these impacts and how outdoor recreation tourists can be regulated concludes each chapter. This practical and engaging textbook will be invaluable to students and scholars of adventure tourism and outdoor recreation as well as practitioners and managers working in the field.

Author: Frank Blaine Norris
Publisher:
ISBN:
Category : Alaska
Languages : en
Pages : 326

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"This study is a chronicle of how subsistence management in Alaska has grown and evolved"--P. viii.

Author: Thomas Biolsi
Publisher: John Wiley & Sons
ISBN: 1405182881
Category : Social Science
Languages : en
Pages : 594

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This Companion is comprised of 27 original contributions by leading scholars in the field and summarizes the state of anthropological knowledge of Indian peoples, as well as the history that got us to this point. Surveys the full range of American Indian anthropology: from ecological and political-economic questions to topics concerning religion, language, and expressive culture Each chapter provides definitive coverage of its topic, as well as situating ethnographic and ethnohistorical data into larger frameworks Explores anthropology’s contribution to knowledge, its historic and ongoing complicities with colonialism, and its political and ethical obligations toward the people 'studied'

Author: John Branson
Publisher: Skyhorse
ISBN: 1626366535
Category : Sports & Recreation
Languages : en
Pages : 872

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Book Description
Throughout history, many people have escaped to nature either permanently or temporarily to rest and recharge. Richard L. Proenneke, a modern-day Henry David Thoreau, is no exception. Proenneke built a cabin in Twin Lakes, Alaska in 1968 and began thirty years of personal growth, which he spent growing more connected to the wilderness in which he lived. This guide through Proenneke’s memories follows the journey that began with One Man’s Wilderness, which contains some of Proenneke’s journals. It continues the story and reflections of this mountain man and his time in Alaska. The editor, John Branson, was a longtime friend of Proenneke’s and a park historian. He takes care that Proenneke’s journals from 1974-1980 are kept exactly as the author wrote them. Branson’s footnotes give a background and a new understanding to the reader without detracting from Proenneke’s style. Anyone with an interest in conservation and genuine wilderness narratives will surely enjoy and treasure this book.