Experimental Harvest of the Steller Sea Lion in Alaskan Waters
Author: Fredrik V. Thorsteinson
Publisher:
Published: 1961
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOK →Author: Fredrik V. Thorsteinson
Publisher:
Published: 1961
Total Pages: 24
ISBN-13:
DOWNLOAD EBOOK →Author: Fredrik V. Thorsteinson
Publisher: Forgotten Books
Published: 2018-02-08
Total Pages: 22
ISBN-13: 9780267220434
DOWNLOAD EBOOK →Excerpt from Experimental Harvest of the Steller Sea Lion in Alaskan Waters Sea lion harvesting should take place during the pupping and breeding season when the animals are most available and least wary. On large rookeries specific areas should be hunted alternately for a greater yield. On a hunt-rest basis animals would not vacate an area quickly and would therefore be available for along period of time. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: National Research Council
Publisher: National Academies Press
Published: 2003-05-04
Total Pages: 217
ISBN-13: 0309086329
DOWNLOAD EBOOK →For an unknown reason, the Steller sea lion population in Alaska has declined by 80% over the past three decades. In 2001, the National Research Council began a study to assess the many hypotheses proposed to explain the sea lion decline including insufficient food due to fishing or the late 1970s climate/regime shift, a disease epidemic, pollution, illegal shooting, subsistence harvest, and predation by killer whales or sharks. The report's analysis indicates that the population decline cannot be explained only by a decreased availability of food; hence other factors, such as predation and illegal shooting, deserve further study. The report recommends a management strategy that could help determine the impact of fisheries on sea lion survival-establishing open and closed fishing areas around sea lion rookeries. This strategy would allow researchers to study sea lions in relatively controlled, contrasting environments. Experimental area closures will help fill some short-term data gaps, but long-term monitoring will be required to understand why sea lions are at a fraction of their former abundance.
Author: National Research Council
Publisher: National Academies Press
Published: 2003-04-04
Total Pages: 216
ISBN-13: 0309168724
DOWNLOAD EBOOK →For an unknown reason, the Steller sea lion population in Alaska has declined by 80% over the past three decades. In 2001, the National Research Council began a study to assess the many hypotheses proposed to explain the sea lion decline including insufficient food due to fishing or the late 1970s climate/regime shift, a disease epidemic, pollution, illegal shooting, subsistence harvest, and predation by killer whales or sharks. The report's analysis indicates that the population decline cannot be explained only by a decreased availability of food; hence other factors, such as predation and illegal shooting, deserve further study. The report recommends a management strategy that could help determine the impact of fisheries on sea lion survival-establishing open and closed fishing areas around sea lion rookeries. This strategy would allow researchers to study sea lions in relatively controlled, contrasting environments. Experimental area closures will help fill some short-term data gaps, but long-term monitoring will be required to understand why sea lions are at a fraction of their former abundance.
Author: United States. Congress. Senate. Committee on Commerce. Subcommittee on Merchant Marine and Fisheries
Publisher:
Published: 1962
Total Pages: 684
ISBN-13:
DOWNLOAD EBOOK →Author: United States. Congress Senate
Publisher:
Published: 1961
Total Pages: 1924
ISBN-13:
DOWNLOAD EBOOK →