Download or read book Commercial Fisheries Review written by and published by . This book was released on 1964 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The California Oyster Industry written by Elinore M. Barrett and published by . This book was released on 1963 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1965 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The California Marine Fish Catch for 1963 written by California. Dept. of Fish and Game and published by . This book was released on 1964 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Bulletin written by California. Dept. of Fish and Game and published by . This book was released on 1970 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Albacore Tuna Catches in the Northeast Pacific During Summer 1969 as Related to Selected Ocean Conditions written by Daniel Alexis Panshin and published by . This book was released on 1971 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oregon's commercial fishery for albacore tuna (Thunnus alalunga) is large, valuable, and variable. Little is known, however, about the oceanographic factors which determine abundance and distribution of albacore. Primarily using logbook data contributed by fishermen, this study compares albacore catches with selected ocean conditions. The study is limited to troll-caught fish taken during the summer of 1969 off the Pacific Northwest. The location and success of commercial albacore catches were analyzed with respect to the sea-surface temperature field. Also examined was the relationship between fish catches and sea-surface temperature, mixed-layer depth, and water color. The 1969 albacore season off the Pacific Northwest lasted for 67 days, from 12 July to 16 September. Nearly 30 million pounds of albacore, worth $6.7 million, were landed in Oregon ports, making 1969 the second best season in history. The first commercial quantities of albacore were caught about 135 n mi west of Coos Bay. During the rest of July the fish moved north somewhat but stayed well offshore. During August the fishery spread out considerably, moving as far north as Vancouver Island. In September fishing activity shifted south and inshore. Off the Pacific Northwest no albacore were taken from waters cooler than 54F(12.2C) or warmer than 66F(18.9C). Most fish were taken from the sea-surface temperature range of 59. 5-63.5F(15.3-17.5C). July fish favored 61.5-63.5F(16.4-17.5C) water. By contrast, August fish favored 59.5-63.5F(15.3-17.5C) water while September fish favored 59.5-61.5F(15.3-16.4C) water. Catch-per-unit- effort data did not indicate as marked a decline in availability at cooler temperatures as did gross catch. Mixed-layer depths associated with favorable albacore catches, 56-135 ft(17.1-41.1 m), were somewhat deeper than those determined by previous investigations. Water-color results showed that most albacore were caught in blue oceanic water. Other factors associated with good fishing included favorable wind and sea conditions, areas with considerable temperature structure, plentiful food supply, presence of "tuna birds", and stable, moderately developed upwelling situation.

Download or read book Collected Reprints written by Southwest Fisheries Center (U.S.) and published by . This book was released on 1984 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fisheries Resources of the North Pacific Ocean written by Hiroshi Kasahara and published by . This book was released on 1961 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proposed Polymetallic Sulfide Minerals Lease Offering written by and published by . This book was released on 1983 with total page 624 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 1975 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Gorda Ridge Area Proposed Polymetallic Sulfide Minerals Lease Offering written by and published by . This book was released on 1983 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fisheries FAO Publications and Documents Annotated bibliography written by Food and Agriculture Organization of the United Nations. Documentation Center and published by . This book was released on 1969 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book California Cooperative Oceanic Fisheries Investigations Progress Report written by and published by . This book was released on 1985 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Bulletin of the written by and published by . This book was released on 1967 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Bulletin of the Fish and Wildlife Service written by and published by . This book was released on 1968 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Ichthyology written by and published by . This book was released on 1974 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Final Environmental Impact Report and Statement written by and published by . This book was released on 1974 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: