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Download or read book On the Two Species of the Thresher Shark from Formosan Waters written by and published by . This book was released on 1935 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hiroshi Nakamura
Publisher :
ISBN 13 :
Total Pages : 12 pages
Book Rating : 4.:/5 (459 download)
Download or read book On the Two Species of the Thresher Shark from Formosan Waters ... Hiroshi Nakamura written by Hiroshi Nakamura and published by . This book was released on 1935 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jose I. Castro
Publisher : OUP USA
ISBN 13 : 0195392949
Total Pages : 628 pages
Book Rating : 4.1/5 (953 download)
Download or read book The Sharks of North America written by Jose I. Castro and published by OUP USA. This book was released on 2011-07-28 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete reference to all the sharks inhabiting North American waters, with excellent color illustrations of all the species.
Author : José Ignacio Castro
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251042991
Total Pages : 84 pages
Book Rating : 4.0/5 (429 download)
Download or read book A Preliminary Evaluation of the Status of Shark Species written by José Ignacio Castro and published by Food & Agriculture Org.. This book was released on 1999 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The status of shark species is reviewed based on the available data. A review of the history of shark fisheries demonstrates that intensive shark fisheries are not sustainable. Numerous problems are encountered in assessing shark populations: a general lack of biological and fishery data, lack of suitable models, and lack of validated age estimates. Sharks have an unusual combination of biological characteristics: slow growth and delayed maturation, long reproductive cycles, low fecundity and long life spans. These characteristics make them vulnerable to overfishing. A preliminary evaluation of the status of shark species is made on the basis of historical data, the reproductive potential of each species, and the level of exploitation of the species. In this document, exploited shark species are classified numerically according to their vulnerability. The majority of these species are listed as Category 1, indicating that there are not sufficient data to assess the species. Available data indicate that sharks are very vulnerable and are threatened by overexploitation in many parts of the world.
Author : Leo S. Demski
Publisher : Springer Science & Business Media
ISBN 13 : 940173450X
Total Pages : 293 pages
Book Rating : 4.4/5 (17 download)
Download or read book The reproduction and development of sharks, skates, rays and ratfishes written by Leo S. Demski and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume had its origin in a symposium on the Reproduction and Development of Cartilaginous Fishes that was held at the annual meetings of the American Elasmobranch Society and the American Society of Ichthyologists and Herpetologists in Charleston, South Carolina in 1990. The cartilaginous fishes, class Chondrichthyes, are a large and diverse group of fishes that include approximately 900 to 1100 living species of sharks, skates, rays and ratfishes. Throughout their history, which dates back at least 400 million years, they have been a successful major component of the marine ecosystem. The chondrichthyan fishes occupy a pivotal position in comparative and evolutionary studies of vertebrate reproduction and development. They are the oldest surviving group of jawed vertebrates and they possess both the adult vertebrate Bauplan and the vertebrate program of embryonic development. The major features of the female reproductive system, including its embryonic origin, structure, physiological function, and biochemistry, apparently were established early in vertebrate evolution and are fully developed in chondrichthyan fishes. These features of the female reproductive system have been retained during the evolution of the other classes of vertebrates. Much the same can be said for the male reproductive system. Moreover, viviparity, placental nourishment of developing embryos, and the hormonal regulation of these events made an initial appearance in this group. The 22 articles presented in this volume bring together a wide variety of complementary research by investigators from seven countries, allowing us to broaden the scope and implications of our studies while identifying opportunities for future research. The appearance of a volume on the reproduction and development of cartilaginous fishes is quite opportune. The continued existence of these fishes, which survived the great extinction events of Earth's history, is now threatened by overexploitation unless immediate steps for their conservation are undertaken. Knowledge of their reproduction and development not only is an end in itself, but is of critical importance in devising successful conservation and resource management strategies.
Author : Merry D. Camhi
Publisher : John Wiley & Sons
ISBN 13 : 1444302523
Total Pages : 536 pages
Book Rating : 4.4/5 (443 download)
Download or read book Sharks of the Open Ocean written by Merry D. Camhi and published by John Wiley & Sons. This book was released on 2009-01-21 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important and exciting title represents the first authoritative volume focussed on pelagic (open ocean) sharks as a group. Virtually every pelagic shark expert in the world has contributed to this landmark publication which includes the latest data and knowledge on pelagic shark biology, fisheries, management, and conservation. Pelagic sharks face unprecedented levels of exploitation in all the world's oceans through both direct fisheries and by-catch, and effective management for these species is contingent upon solid science and data, which this book brings together for the first time. All those involved in shark biology will need to have a copy of this book.
Author :
Publisher :
ISBN 13 :
Total Pages : 420 pages
Book Rating : 4.3/5 (555 download)
Download or read book Amendment 1 to the Consolidated Atlantic Highly Migratory Species Fishery Management Plan, Essential Fish Habitat written by and published by . This book was released on 2009 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 374 pages
Book Rating : 4.3/5 (555 download)
Download or read book Fishery Management Plan for Atlantic Tunas, Swordfish, and Sharks written by and published by . This book was released on 1999 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Leonard J. V. Compagno
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251045435
Total Pages : 288 pages
Book Rating : 4.0/5 (454 download)
Download or read book Sharks of the World written by Leonard J. V. Compagno and published by Food & Agriculture Org.. This book was released on 2001 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensively rewritten, revised and updated version of the original FAO Catalogue of Sharks of the World. This volume reviews all 15 families, 25 genera and 57 species of living bullhead, mackerel and carpet sharks, including certain well-established but currently undescribed species, mainly from Australia.
Author :
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (3 download)
Download or read book Fishery Bulletin written by and published by . This book was released on 1998 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.3/5 (555 download)
Download or read book Consolidated Atlantic Highly Migratory Species Fishery Management Plan written by and published by . This book was released on 2006 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce J. Welton
Publisher : New Mexico Museum of Natural History and Science
ISBN 13 :
Total Pages : 57 pages
Book Rating : 4./5 ( download)
Download or read book A New Archaic Basking Shark (Lamniformes: Cetorhinidae) from the Late Eocene of Western Oregon, U.S.A., and Description of the Dentition, Gill Rakers and Vertebrae of the Recent Basking Shark Cetorhinus maximus (Gunnerus) written by Bruce J. Welton and published by New Mexico Museum of Natural History and Science. This book was released on 2013 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : José Ignacio Castro
Publisher : Texas A&M University Press
ISBN 13 : 9780890961438
Total Pages : 194 pages
Book Rating : 4.9/5 (614 download)
Download or read book The Sharks of North American Waters written by José Ignacio Castro and published by Texas A&M University Press. This book was released on 1983 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: For many years, brief encounters between sharks and humans could leave the latter with a vivid memory of the much-maligned fish but no convenient means of identifying it more specifically. With the publication of The Sharks of North American Waters in 1983, everyone from the experienced ichthyologist to the weekend angler had access to concise descriptions and accurate, detailed drawings in this handy field guide to more than one hundred species. All species that have been reported within five hundred nautical miles of U.S. and Canadian shores (plus a few deep-water species from adjacent areas) are illustrated, with summaries of diagnostic characteristics, similar species, geographic range, biology, reproduction, utility, and fishing methods. An illustrated key to the families of sharks, family descriptions, and species characteristics makes field identification simple. Also included is a general account of the evolution of sharks, their anatomy, reproduction, and distribution.
Author : Michael Watkins
Publisher : Pelagic Publishing Ltd
ISBN 13 : 1784270377
Total Pages : 230 pages
Book Rating : 4.7/5 (842 download)
Download or read book Sharks: An Eponym Dictionary written by Michael Watkins and published by Pelagic Publishing Ltd. This book was released on 2015-01-30 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fascinating reference book delves into the origins of the vernacular and scientific names of sharks, rays, skates and chimeras. Each entry offers a concise biography, revealing the hidden stories and facts behind each species’ name.
Author :
Publisher :
ISBN 13 :
Total Pages : 692 pages
Book Rating : 4.3/5 (21 download)
Download or read book FAO Species Catalogue written by and published by . This book was released on 1980 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Julian G. Pepperell
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (318 download)
Download or read book Sharks written by Julian G. Pepperell and published by . This book was released on 1992 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sharks: Biology and Fisheries contains papers from the International Sharks Down Under Conference held at Taronga Zoo, Sydney in 1991. The conference was attended by scientists from nine countries with the book representing the latest research results by scientists from Australia, USA, Spain and South Africa.
Author :
Publisher :
ISBN 13 :
Total Pages : 1226 pages
Book Rating : 4.:/5 (43 download)
Download or read book Copeia written by and published by . This book was released on 1983 with total page 1226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
