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Distribution, Relative Abundance, and Movement of Skipjack Tuna, Katsuwonus Pelamis, in the Pacific Ocean Based on Japanese Tuna Longline Catches, 1964-67 (Classic Reprint)
Walter M. Matsumoto

Distribution, Relative Abundance, and Movement of Skipjack Tuna, Katsuwonus Pelamis, in the Pacific Ocean Based on Japanese Tuna Longline Catches, 1964-67 (Classic Reprint)

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Excerpt from Distribution, Relative Abundance, and Movement of Skipjack Tuna, Katsuwonus Pelamis, in the Pacific Ocean Based on Japanese Tuna Longline Catches, 1964-67 Certain characteristics of the longline gear affect the catch and catch data. And these should be cited so that conclusions drawn from the data are viewed in the proper perspective. First, the catches of skipjack tuna by this gear are extremely small. In the years 1962-66, for example, the catch of skipjack tuna in the Japanese commercial tuna longline fishery averaged metric tons per year, as compared with an average of metric tons caught by the pole-and-line fishery. The smallness of the catch reflects the inefficiency of the gear for taking this species, but, because of the wide areal coverage by this gear, these data should be useful for determining areas of high or low relative abundance. 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.
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Erscheinungsdatum
20.02.2018
Ausgabe
Hardcover
ISBN
9780666020147
Sprache
-
Seiten
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