Download or read book Pacific Coast Troll Salmon Fishery PMP written by and published by . This book was released on 1977 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Troll Salmon Fishery of the Pacific Coast written by United States. National Marine Fisheries Service and published by . This book was released on 1976 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Innovation in the Pacific Coast Commercial Trawling and Salmon Trolling Fisheries written by Christopher Malcolm Dewees and published by . This book was released on 1985 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Review of Chinook and Coho Shaker Catches in the Pacific Coast Troll Fishery written by Patrick O'Brien and published by . This book was released on 1970 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Salmon Fisheries of the Pacific Coast written by John Nathan Cobb and published by . This book was released on 1911 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Pacific Salmon Fisheries written by James A. Crutchfield and published by Routledge. This book was released on 2013-10-18 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study attributes the chronic economic distress of the valuable Pacific salmon industry not only to decline in catch but also to the economic problems of open access ocean fisheries. It analyzes salmon public management programs and proposes alternatives. Originally published in 1969
Download or read book Pacific Salmon Fisheries Management Off the Coasts of Southeast Alaska Washington Oregon and California and in the Columbia River Basin written by and published by . This book was released on 2004 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of the Pacific Coast Chinook and Coho Salmon Resources with Special Emphasis on the Troll Fishery written by Robert E. Loeffel and published by . This book was released on 1967 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pacific Salmon Management written by and published by . This book was released on 1991 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Draft Amendment 14 Pacific Coast Salmon Plan written by and published by . This book was released on 1999 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ocean Salmon Troll Fishery of Oregon written by Jack M. Van Hyning and published by . This book was released on 1951 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. The Oregon troll salmon fishery developed rapidly prior to World War I to reach a peak of between one and three thousand boats fishing off the mouth of the Columbia River during 1919. The fishery later expanded to the other coastal areas. There has been a decrease in the number of boats fishing, but a great increase in their efficiency. The development of the tuna fishery resulted in the larger trollers fishing for tuna during the late summer and concentrating on salmon during the spring and early summer. There are about 500 trollers which make Oregon ports their base of operations at the present time. Since 1940 the Oregon troll fishery has landed about 3,000,000 pounds of chinook and silver salmon per year. The troll fishery was practically unregulated until 1948, at which time, preliminary regulations were imposed. 2. Preliminary troll regulations which were imposed since 1948 and altered somewhat in 1949 include a 26 inch minimum size limit and a closed season from November 1 to March 15 on chinook salmon. A closed season for silver salmon extends from November 1 to June 15 to prevent the landing of small silvers during the late spring. 3. This report covers in part the tagging and biological data gathered by the staff of the Oregon Fish Commission during 1946, 1947, 1948 and 1949. 4. There were 506 silvers tagged off Oregon in 1948 and 1949, and 29 (5.7 percent) were recovered. By far the greater percentage were recovered north of their tagging location, indicating a northward migration of silvers in their third and last year to their spawning streams. 5. The recovery of marked silver salmon in the ocean, confirms the findings of the tagging in that early in the season (June) the marked fish were found south of their home streams, and as the season advanced they moved north until during September they were grouped around the mouths of the rivers. 6. The length-weight relationship of troll-caught silver salmon was found to be an exponential type of relationship, and the equation for 1947 is W = 0.23215 x 1.0535 [superscript L]; that for 1948 is W = 0.27952 x 1.04949 [superscript L]. 7. The commercial catch of silver salmon is composed largely of individuals in their third year. There seems to be a considerable difference between the growth rates of different years, but the silvers show an average increase in mean weight from about 4.5 pounds on June first to about eight pounds by November first, dressed weight. They showed an increase in modal length in 1948 from 25.2 inches (total length) in June to 30.4 inches (total length) in November. 8. There were 221 chinook salmon tagged in 1948 and 1949 and eleven recoveries were made. No consistent migration pattern is apparent, but it is apparent that the chinook move both north and south of their natal streams and probably migrate farther than do the silver salmon. 9. The length-weight relationship of the chinook salmon was found to conform to the usual parabolic relationship, W = AL [superscript b]. The equation for 1947 was W = 0.000013126 [superscript L 3.17008] and for 1948, W = 0.000009256 [superscript L 3.24142]. 10. The age and growth of the troll caught chinook salmon was studied. The 2+ group was the dominant year class in the catch of 1919, 1946, and probably 1948, but in 1947 there was slightly more of the 3+ group. The 3+ group was next in abundance in 1919 and 1946, with the 1+ group age class comprising a relatively small part of the catch. There is a considerable variation in the sizes and ages of chinooks found in the different areas at different times, and also between years. 11. During April and May, trolling is concentrated off the mouth of the Columbia River. Usually there is a slight peaking in average weight in the spring, followed by a decline and a subsequent rise to a peak in August. In all cases average weight dropped appreciably after August. 12. The ocean sport fishery operates mainly out of Depoe Bay and Newport, with smaller fleets out of nearly every port on the Oregon Coast. The estimated ocean sport catch in 1949 was 700 chinooks (9,000 pounds) and 9,000 silvers (70,000 pounds).--Summary.
Download or read book Final Environmental Impact Statement and Fishery Management Plan for Commercial and Recreational Salmon Fisheries Off the Coasts of Washington Oregon and California Commencing in 1978 written by Pacific Fishery Management Council (U.S.) and published by . This book was released on 1978 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 2013-05 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pacific Salmon Fisheries written by John Nathan Cobb and published by . This book was released on 1917 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Salmon Fisheries WA OR CA written by and published by . This book was released on 1978 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishery Management Plan and Environmental Impact Statement for Commercial Troll Fisheries Off the Coast of Alaska written by North Pacific Fishery Management Council and published by . This book was released on 1977 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review of 1985 South Coast Salmon Troll Fisheries written by A. D. Anderson and published by Nanaimo, B.C. : Fisheries and Oceans, Canada. This book was released on 1986 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
