Fur Seal Investigations, Pribilof Islands, Alaska, 1965 PDF Download
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Author: Alton Y. Roppel
Publisher:
ISBN:
Category : Seals (Animals)
Languages : en
Pages : 45
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Book Description
Author: Alton Y. Roppel
Publisher:
ISBN:
Category : Seals (Animals)
Languages : en
Pages : 45
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Book Description
Author: Alton Y. Roppel
Publisher: Forgotten Books
ISBN: 9781333948597
Category : Business & Economics
Languages : en
Pages : 60
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Book Description
Excerpt from Fur Seal Investigations: Pribilof Islands, Alaska, 1965 Estimates of the number of pups born based on the tag-and-recovery method have long been known to be inflated, mainly as a result of tag-induced mortality and loss of tags. Additional pups are now marked each year by shearing a patch of fur, and estimates of the number born are obtained by sampling for a marked-to-unmarked ratio 1 to 3 weeks later. The estimates from shearing were similar to complete counts of pups on several small rookeries. 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:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Alton Y. Roppel
Publisher:
ISBN:
Category : Northern fur seal
Languages : en
Pages : 72
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Book Description
Author: Alton Y. Roppel
Publisher:
ISBN:
Category : Northern fur seal
Languages : en
Pages : 112
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Book Description
Author: United States. Bureau of Commercial Fisheries
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Northern fur seal
Languages : en
Pages : 56
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Author: Alton Y. Roppel
Publisher: Forgotten Books
ISBN: 9780666134332
Category : Business & Economics
Languages : en
Pages : 112
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Book Description
Excerpt from Fur Seal Investigations: Pribilof Islands, Alaska, 1962 Percent 3 and 4-year-old male seals in cumulative kill, by island and round, Pribilof Islands, Alaska, 1962 Kill of male seals, by age and round, St. Paul Island, 1962 Percent post partum tagged female seals sampled from the kill, by age, St. Paul Island, 13-17 and 20-24 August 1962. 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: United States. Congress. Senate. Commerce
Publisher:
ISBN:
Category :
Languages : en
Pages : 186
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Book Description
Author: Alton Y. Roppel
Publisher:
ISBN:
Category : Northern fur seal
Languages : en
Pages : 46
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Book Description
