Download or read book Sawfishes Guitarfishes Skates and Rays Chimaeroids written by Henry B. Bigelow and published by Yale University Press. This book was released on 2018-10-23 with total page 605 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part Two in the Fishes of the Western North Atlantic series describes the sawfishes, guitarfishes, skates, rays, and chimaeroids that inhabit the waters adjacent to the eastern coastline of North and Central America and the northern portion of South America. Specialist authorships of its sections include detailed species descriptions with keys, life history and general habits, abundance, range, and relation to human activity, such as economic and sporting importance. The text is written for an audience of amateur and professional ichthyologists, sportsmen, and fishermen, based on new revisions, original research, and critical reviews of existing information. Species are illustrated by exceptional black and white line drawings, accompanied by distribution maps and tables of meristic data.
Download or read book Fishes of the Western North Atlantic Sawfishes guitarfishes skates and rays written by John Tee-Van and published by . This book was released on 1948 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sawfishes Guitarfishes Skates and Rays written by Henry Bryant Bigelow and published by . This book was released on 1953 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishes of the Western North Atlantic Sawfishes guitarfishes skates and rays written by John Tee-Van and published by . This book was released on 1953 with total page 660 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 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reproductive Biology and Phylogeny of Chondrichthyes written by William C. Hamlett and published by CRC Press. This book was released on 2011-10-14 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internal fertilization is universal in chondrichthyan fishes and, as such, requires a suite of biological activities, including behavioral, morphological and physiological mechanisms, to ensure successful copulation and fertilization. This volume correlates available data and ideas concerning the development, reproductive morphology, function, and
Download or read book Texans on the Brink written by Brian R. Chapman and published by Texas A&M University Press. This book was released on 2019-03-27 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: What good is a rattlesnake? What purpose do animals serve? All species play a vital role in their biological communities, and the removal of just one can have a noticeable and catastrophic ripple effect. Yet social and political pressures frequently pit species conservation against economic progress and prosperity, and scientists fear that we may be in the midst of a mass extinction event. Brian R. Chapman and William I. Lutterschmidt make the case that the effort to preserve animals is the responsibility of every Texan and that biodiversity contributes enormous economic value to the citizens of Texas. Texans on the Brink brings together experts on eighty-eight endangered and threatened animal species of Texas and includes brief descriptions of the processes that state and federal agencies employ to list and protect designated species. Species accounts include a description of the species accompanied by a photograph, an easy-to-read account of the biology and ecology of the species, and a description of efforts underway to preserve the species and its required habitat. Sobering examples of species that were once part of the Texas fauna but are now extinct or extirpated are also given to further demonstrate just how vulnerable biodiversity can be. All species require healthy habitats, and every species—even a rattlesnake—provides important services for the biotic communities in which they live. It is imperative to learn as much as we can about these animals if we are to preserve biodiversity successfully in Texas.
Download or read book Sharks and Their Relatives II written by Jeffrey C. Carrier and published by CRC Press. This book was released on 2010-03-09 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the award-winning first volume, The Biology of Sharks and Their Relatives, published in 2004, the field has witnessed tremendous developments in research, rapid advances in technology, and the emergence of new investigators beginning to explore issues of biodiversity, distribution, physiology, and ecology in ways that eluded more traditional
Download or read book Biology of Sharks and Their Relatives written by Jeffrey C. Carrier and published by CRC Press. This book was released on 2004-03-29 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Winner of Choice Magazines Outstanding Academic Title award, January 2005! Sharks and their relatives are the subjects of tremendous interest. The publics fascination is influenced by their roles in movies and popular literature, while the media races to cover stories of predators endangering helpless humans. The alarming threat to shark popul
Download or read book Reproduction and Sexuality in Marine Fishes written by Kathleen S. Cole and published by Univ of California Press. This book was released on 2010-10-28 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Marine fishes represent astonishing diversity with respect to practically every aspect of their biology. Reproductive modes and sexual patterns are especially fascinating and provide deep insight into general evolutionary problems. In this volume, chapters focus on reproduction and sexuality among groups of fishes defined by habitat, taxon, and the reproductive processes that are critical for reproductive success. The book illustrates how knowledge of reproductive biology among marine fishes can help identify vulnerable and potentially vulnerable species in the face of changing environmental conditions and increasing human-based pressures.
Download or read book Proceedings of The Academy of Natural Sciences Vol 143 1991 written by and published by Academy of Natural Sciences. This book was released on with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elasmobranch Biodiversity Conservation and Management written by Sarah L. Fowler and published by IUCN. This book was released on 2002 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Darwin Elasmobranch Biodiversity Conservation and Management project in Sabah held a three-day international seminar that included a one-day workshop in order to highlight freshwater and coastal elasmobranch conservation issues in the region and worldwide, to disseminate the result of the project to other Malaysian states and countries, and to raise awareness of the importance of considering aspects of elasmobranch biodiversity in the context of nature conservation, commercial fisheries management, and for subsistence fishing communities. These proceedings contain numerous peer-reviewed papers originally presented at the seminar, which cover a wide range of topics, with particular reference to species from freshwater and estuarine habitats. The workshop served to develop recommendations concerning the future prospects of elasmobranch fisheries, biodiversity, conservation and management. This paper records those conclusions, which highlight the importance of elasmobranchs as top marine predators and keystone species, noting that permanent damage to shark and ray populations are likely to have serious and unexpected negative consequences for commercial and subsistence yields of other important fish stocks.
Download or read book Fishery Bulletin written by and published by . This book was released on 1975 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Amendment 6 to the Fishery Management Plan for the Shrimp Fishery of the South Atlantic Region written by and published by . This book was released on 2005 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of the Royal Society of New Zealand written by and published by . This book was released on with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
