Download or read book Relative Growth and Mortality of the Pacific Razor Clam Siliqua Patula Dixon and Their Bearing on the Commercial Fishery written by Frank Walter Weymouth and published by . This book was released on 1931 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relative Growth and Mortality of the Pacific Razor Clam Siliqua Patula Dixon and Their Bearing on the Commercial Fishery written by Frank Walter Weymouth and published by . This book was released on 1931 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Variability in the Pacific Razor Clam Siliqua Patula Dixon written by Harvey Clay McMillin and published by . This book was released on 1935 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by Dennis R. Lassuy and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Age at Muturity of the Pacific Razor Clam written by Arthur W. Wells and published by . This book was released on 1926 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Age at Muturity of the Pacific Razor Clam written by Charles H Gilbert and published by . This book was released on 1925 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Age at Maturity of the Pacific Razor Clam written by Frank Walter Weymouth and published by . This book was released on 1925 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth and Mortality Rates of the Razor Clam Siliqua Patula on Clatsop Beaches Oregon written by George Hirschhorn and published by . This book was released on 1962 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clatsop Beaches, characterized by flat beach-face slope (1:70) and small sandsize (0.2 mm.), have supported commercial and recreational fisheries for the razor clam (Siliqua patula) for many years. Tracing the linear growth of two year classes through more than one year following set led to a validation of the ring method of age determination in the population studied. Annual ring lengths based on the means of samples from all subareas were fitted by von Bertalanffy equations. Increases in total length, wet weight, and relative width showed patterns of seasonal variation. Death rates of the Seaside Beach population were estimated from recoveries of 3,379 serially marked razor clams. Mortality coefficients obtained were: 2.52 for total mortality, based on the difference between estimated population sizes in 1952 and 1953 of year classes fully recruited at the beginning of the census; 1.78 for the estimated removals by actual harvesting; and 0.74 for other losses to which fishery-connected wastage was believed to have contributed, in addition to true natural mortality. The weight yield per 1,000 recruits, as function of age at first capture, was examined at three hypothetical levels of wastage indicating that potential increases in yield at each level could be realized by deferring the exploitation of a year class until its second year of age, regardless of whether the fisheries are continuous or seasonal.

Download or read book Growth and Development of Pacific Razor Clams Siliqua Patula Dixon on Swikshak Beach written by Vincent A. Poulin and published by . This book was released on 1973 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Life history and Growth of the Razor Clam written by Harvey C. McMillin and published by . This book was released on 1924 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Critical Analysis of Some Razor Clam Siliqua Patula Dixon Populations in Alaska written by Richard B. Nickerson and published by . This book was released on 1975 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearings written by United States. Congress. House and published by . This book was released on 1943 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the United States Bureau of Fisheries written by United States. Bureau of Fisheries and published by . This book was released on 1931 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the Bureau of Fisheries written by and published by . This book was released on 1931 with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the United States Bureau of Fisheries written by and published by . This book was released on 1931 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conservation of Wildlife written by United States. Congress. House. Special Committee on Conservation of Wildlife Resources and published by . This book was released on 1944 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conservation of Wildlife written by United States. Congress. House. Select Committee on Conservation of Wildlife Resources and published by . This book was released on 1944 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: