Download or read book Comparison of Vertebral Counts of Atlantic Menhaden written by Fred C. June and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Vertebral Counts of Atlantic Menhaden written by Fred C. June and published by . This book was released on 1965 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comparison of Vertebral Counts of Atlantic Menhaden Classic Reprint written by Fred C. June and published by Forgotten Books. This book was released on 2017-04-25 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Comparison of Vertebral Counts of Atlantic Menhaden The similarity in the vertebral counts of juveniles in northern estuaries and of spring spawners from adjacent ocean waters further emphasizes the distinctness ofa northern group of fish which appears to be physiologically and genetically adapted to life under conditions of lower temperature. Thus, the inverse re lation between vertebral number and, temper ature noted for many clupeoid fishes (barlow, 1961) does not seem to hold for Atlantic men haden. In the present study, the hypothesis was that no more than two discrete groups of Spawners were present simultaneously in the different localities, and the data confirm that this con clusion, in general, agrees with the known facts concerning the occurrence of spring and autumn-spawned juveniles in estuarine nurseries and the seasonal occurrence of sexually active fish in the commercial catches. Some spawning, however, occurs in waters north of Long Island through summer (herman, Furthermore, spawning by younger, smaller fish occurs from North Carolina south ward beginning in September or October (in advance of the arrival of the larger, older spawning fish from farther northward). The relationship of these additional spawning groups should be investigated as soon as practicable since they must be considered in answering the question of population structure. In view of the results of this study, I recommend that the meristic studies be ex panded to include all known spawning groups. Other meristic and/or mor'phometric characters also should be included to provide estimates of the relative proportions of discrete subpopulation components in mixed samples of fish. Growth, serological, and fecundity studies also should be undertaken since these will yield' ancillary information that, when combined with results of meristic studies, might lead to an understanding of the structure of the Atlantic menhaden population. 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.
Download or read book Special Scientific Report written by and published by . This book was released on 1965 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Fish Passage Report Rock Island Dam Columbia River Washington written by and published by . This book was released on 1965 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annotated Bibliography on the Biology of the Menhadens Genus Brevoortia 1963 1973 written by John W. Reintjes and published by . This book was released on 1975 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NOAA Technical Report NMFS SSRF written by and published by . This book was released on 1974 with total page 772 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 Fishery Bulletin written by and published by . This book was released on 1973 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishery Bulletin written by United States. National Marine Fisheries Service and published by . This book was released on 1973 with total page 1174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Living Resources of the Delaware Estuary written by and published by . This book was released on 1995 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Bureau of Commercial Fisheries Biological Laboratory Gulf Breeze Florida Fiscal Year 1966 written by Biological Laboratory (Gulf Breeze, Fla.) and published by . This book was released on 1967 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 1967 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Bureau of Commercial Fisheries Biological Laboratory St Petersburg Beach Florida Fiscal Year 1968 written by Biological Laboratory (Saint Petersburg Beach, Fla.) and published by . This book was released on 1969 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of the Federal Biological Laboratory at Beaufort North Carolina 1899 1999 written by Douglas Arthur Wolfe and published by . This book was released on 2000 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
