Download or read book Sampling Statistics in the Atlantic Menhaden Fishery written by Alexander J. Chester and published by . This book was released on 1984 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic menhaden, Brevootia tyrannus, the object of a major purse-seine fishery along the U.S. east coast, are landed at plants from northern Florida to central Maine. The National Marine Fisheries Service has sampled these landings since 1955 for length, weight, and age. Together with records of landings at each plant, the samples are used to estimate numbers of fish landed at each age. This report analyzes the sampling design in terms of probability sampling theory. The design is classified as two-stage cluster sampling, the first stage consisting of purse-seine sets randomly selected from the population of all sets landed, and the second state consisting of fish randomly selected from each sample set. Implicit assumptions of this design are discussed with special attention to current sampling procedures. Methods are developed for estimating mean fish weight, numbers of fish landed, and age composition of the catch, with approximate 95% confidence intervals. Based on specific results from three ports (Port Monmouth, N.J., Reedville, Va., and Beaufort, N.C.) for the 1979 fishing season, recommendations are made for improving sampling procedures to comply more exactly with assumptions of the sampling design. These recommendations include adopting more formal methods for randomizing set and fish selection, increasing the number of sets sampled, considering the bias introduced by unequal set sizes, and developing methods to optimize the use of funds and personnel.

Download or read book Age and Size Composition of the Menhaden Catch Along the Atlantic Coast of the United States 1952 55 written by Fred C. June and published by . This book was released on 1959 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Included are a brief description of menhaden purse-seine fishing gear, methods, and seasons; a summary of the major features of the 1955 Atlantic Coast purse-seine fishery; a description and analysis of the methods of sampling the catches; and tabular data resulting from the catch-sampling program. Measurements of the catch of Atlantic menhaden (Brevoortia tyrannus), apparent abundance, and total fishing effort showed considerable variation in different areas of the coast in 1955, with highest apparent abundance encountered on the North Carolina fall fishing grounds. Age, length, and weight composition of samples from the catches from 1952 through 1955 revealed the presences of a dominant year class in the fishery and established that different age and size groups support the catches in different areas along the coast; in summer, younger, smaller fish were found to occur in southern waters, and older, larger fish, farther northward. All age and size groupings were shown to be represented in the fall fishery off North Carolina.

Download or read book Stock Assessment of the Atlantic Menhaden Brevoortia Tyrannus Fishery written by Douglas S. Vaughan and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NOAA Technical Report NMFS written by and published by . This book was released on 1984 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Special Scientific Report written by and published by . This book was released on 1959 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Bulletin written by and published by . This book was released on 1997 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annotated Bibliography on the Biology of the Menhaden Genus Brevoortia 1981 1987 written by Donnie L. Dudley and published by . This book was released on 1988 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stock Assessment of the Gulf Menhaden Brevoortia Patronus Fishery written by Douglas S. Vaughan and published by . This book was released on 1987 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Fisheries Review written by and published by . This book was released on 1991 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synopsis of Biological Data on the Atlantic Menhaden Brevoortia Tyrannus written by John William Reintjes and published by . This book was released on 1969 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Northeastern Pacific Albacore Survey written by R. J. Callaway and published by . This book was released on 1959 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observations obtained aboard the United States Fish and Wildlife Service research vessels Hugh M. Smith and John R. Manning during Operation NEPAS in 1957 and en route to and from Hawaii

Download or read book Special Scientific Report written by and published by . This book was released on 1959 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the Bureau of Commercial Fisheries Biological Laboratory Beaufort N C written by United States. Bureau of Commercial Fisheries. Biological Laboratory, Beaufort, N.C. and published by . This book was released on 1965 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Marine Recreational Fishery Statistics Survey written by and published by . This book was released on 1979 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Bureau of Commercial Fisheries Biological Laboratory Beaufort N C written by United States. Bureau of Commercial Fisheries. Biological Laboratory, Beaufort, N.C. and published by . This book was released on 1968 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Circular written by and published by . This book was released on 1970 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fatty Acid Composition of Fish Oils written by Edward H Gruger and published by . This book was released on 1967 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: