Download or read book The Catshark Genus Scyliorhinus Chondrichthyes Carcharhiniformes Scyliorhinidae written by author 1 and published by . This book was released on 2019 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Abstract: The catshark genus Scyliorhinus belongs to the family Scyliorhinidae, the most diverse family of sharks, and currently presents 16 valid species according to most modern accounts. The long history of taxonomic rearrangements and inaccurate descriptions of many species have contributed to misidentification of specimens and lack of information on the distributional range and diagnostic characters of its species. Species of Scyliorhinus are reviewed and redescribed here, with detailed descriptions on external morphology, neurocranium, claspers, dermal denticles, and tooth morphology provided for the first time for all species. Sixteen species are recognized as valid: Scyliorhinus boa (Goode & Bean, 1896), S. cabofriensis Soares, Gomes & de Carvalho, 2016, S. canicula (Linnaeus, 1758), S. capensis (Müller & Henle, 1838), S. cervigoni Maurin & Bonnet, 1970, S. comoroensis Compagno, 1988, S. duhamelii (Garman, 1913), S. garmani (Fowler, 1934), S. haeckelii (Miranda Ribeiro, 1907), S. hesperius Springer, 1966, S. meadi Springer, 1966, S. retifer (Garman, 1881), S. stellaris (Linnaeus, 1758), S. torazame (Tanaka, 1908), S. torrei Howell-Rivero, 1936, and S. ugoi Soares, Gomes & Gadig, 2015. The main taxonomic decisions herein taken include the resurrection of S. duhamelii (previously a junior synonym of S. canicula) and the synonimization of S. tokubee with S. torazame. Information on geographic distribution was updated for most species, especially for those with wide ranges (S. canicula, S. haeckelii, S. retifer, and S. stellaris). Keywords: Scyliorhinus, S. duhamelii, S. tokubee, catsharks, taxonomy, morphology, Pisces"--Page 3.
Download or read book A Taxonomic Revision of the Catshark Genus Poroderman Smith 1837 Chondrichthyes Carcharhiniformes Scyliorhinidae written by Brett A. Human and published by . This book was released on 2006 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Taxonomic Revision of the Catshark Genus Holohalaelurus Fowler 1934 Chondrichthyes Carcharhiniformes Scyliorhinidae with Descriptions of Two New Species written by Brett A. Human and published by . This book was released on 2006 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Revision of the Catsharks Family Scyliorhinidae written by Stewart Springer and published by . This book was released on 1979 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The family includes 86 species in 17 genera. Species are characterized and most of them are illustrated. Summaries of biological studies pertinent to classification are included. Keys to genera and species are provided. Six new species and one new subspecies are described: Parmaturus manis of the western North Atlantic; P. stenseni of the Pacific continental slope off Panama; P. campechiensis from the Gulf of Mexico; Galeus schultzi from Philippine seas; G. arae antillensis from the West Indies; and two species of Apristurus from the western Atlantic, A. canutus Springer and Heemstra and A. parvipinnis Springer and Heemstra. Two populations close to Galeus arae and one population close to G. melastomus are treated here as subspecies; they are G. a. antillensis (new subspecies) and G. a. cadenati of the Caribbean region and G. m. murinum of northeastern Atlantic island slopes. Treatment emphasizes descriptive accounts thought to be useful for species identification.
Download or read book Australian Catsharks of the Genus Asymbolus Carcharhiniformes Scyliorhinidae written by P. R. Last and published by . This book was released on 1999 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishes written by Alfredo Carvalho Filho and published by Literare Books. This book was released on 2023-08-02 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first large-scale work that allows the identification of more than 1,000 species of coastal marine fish along the Brazilian coast, from the Guianas to Argentina. With the publication of "Fishes of the Brazilian Coast", Alfredo Carvalho-Filho fills a fundamental gap in the knowledge of fish worldwide. The author has participated in the Workshops for the Assessment of the State of Conservation of Marine Actinopterygii Species at the Chico Mendes Institute for Biodiversity Conservation and gives lectures on Communications, Ichthyology and, among these, the one entitled "Biology and Marketing", with two disciplines so diverse gathered in a single presentation!
Download or read book Sharks of the Order Carcharhiniformes written by Leonard J. V. Compagno and published by . This book was released on 2003 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reprint of the book Sharks of the Order Carcharhiniformes, first published in 1988. The book is a general review, taxonomic revision and phylogenetic analysis of the carcharhinoids, the largest group of living sharks, which comprises almost 60% of the known shark species. Students of shark biology have been hampered by the lack of a comprehensive and rigorous account of shark morphology. With this work, Dr. Compagno offers not only the most comprehensive and detailed account of this important group but also one of the most comprehensive modern anatomic and phylogenetic studies on cartilaginous fishes available. It is an essential reference not only for researchers on carcharhinoids but also for those who study other families of sharks and for paleontologists interested in this ancient group of fishes. The book begins with a general account of carcharhinoid sharks. Chapters two through eleven include detailed discussions of character systems used in taxonomic and phylogenetic analysis of carcharhinoids. Chapter twelve defines the Order Carcharhiniformes, lists its families and includes a taxonomic key to the families. Chapters thirteen through twenty review the eight carcharhinoid families and chapter twenty-one is an extended discussion of the phylogeny of carcharhinoids with cladistic analysis of taxa at various levels. L. J. V. Compagno is Curator of Fishes and Head of the Shark Research Center at Iziko - Museums of Cape Town, South Africa.
Download or read book A Revision of the Catsharks Family Scyliorhinidae written by Stewart Springer and published by . This book was released on 1979 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Brazilian Deep Sea Biodiversity written by Paulo Yukio Gomes Sumida and published by Springer Nature. This book was released on 2020-10-27 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the biodiversity of the Brazilian deep-sea and its many unique geological and biological features, as well as a review of its ecology, conservation, and future research needs. The deep-sea Brazilian margin has an incredible geological heterogeneity with numerous characteristic seafloor features, and latitudinal changes in marine productivity, oceanographic conditions and biological communities have resulted in very distinct biological assemblages at regional and bathymetric scales. It is a tremendously rich ecosystem in terms of living species, from which many well-known historical tales have originated, and with unique importance for the global climate and humanity. Nevertheless, vast areas of the Brazilian margin have been explored for fishing, oil and gas, and other commodities, likely impacting a variety of deep-sea habitats at scales and intensities yet undetermined. This book is intended for students, scholars, professionals and a wide audience interested in the deep-sea in general and, more specifically, in the South Atlantic deep-sea.
Download or read book Intraspecific and Interspecific Spatial Distribution of Three Eastern North Pacific Catshark Species and Their Egg Cases Chondrichthyes Scyliorhinidae written by Brooke E. Flammang and published by . This book was released on 2011 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Additions to a Revision of the Shark Genus Carcharhinus written by J. A. F. Garrick and published by . This book was released on 1985 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Features of the valid nominal species of Aprionodon Gill (isodon Valenciennes) and Hypoprion Müller and Henle (hemiodon Valenciennes, macloti Müller and Henle, and signatus Poey), plus those of a previously unrecognized species here described as Carcharhinus leiodon n.sp., are examined and compared with those of Carcharhinus Blainville. Features studied include morphometrics, vertebral numbers and other vertebral characteristics, tooth numbers, color pattern, and some other aspects of external morphology. It is concluded that on these features C. Leiodon n.sp. is entirely encompassed within the parameters of Carcharhinus, and that, although A. isodon, H. hemiodon, H. macloti, and H. signatus each extend the range of diversity of Carcharhinus in one or more features, A. isodon is not uniquely different from Carcharhinus, and there is no common pattern of difference between the three species of Hypoprion and Carcharhinus. Accordingly, and because the nature of the teeth of Aprionodon and Hypoprion has been found insufficient to warrant generic distinction from Carcharhinus, the genera Aprionodon and Hypoprion are synonymised with Carcharhinus. A diagnosis and description are given for each of the above species. The descriptions include measurements, counts, and line illustrations that show the whole shark in lateral view, underside of head, nostril, and teeth. The geographic distribution is summarized, as are also the meager biological data available on number of embryos, size at birth, size at sexual maturity, and maximum size.
Download or read book Field Guide for Sharks of the Genus Carcharhinus written by Matthias Voigt and published by . This book was released on 2011 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Identification Guide to the Sharks and Rays of the Mediterranean and Black Sea written by Fabrizio Serena and published by Food & Agriculture Org.. This book was released on 2005 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a fully illustrated field guide for the identification of the sharks and rays most relevant to the fisheries of the Mediterranean and Black Sea. An extensive literature review was carried out for the preparation of this document. A total of 49 sharks, 34 batoids and 1 chimaera are fully treated. The presence of 5 sharks and 2 batoids included in this field guide, need, however, to be confirmed. The guide includes sections on technical terms and measurements for sharks and batoids, and fully illustrated keys to those orders and families that occur in the region. Each species account includes: at least one annotated illustration of the species highlighting its relevant identification characters; basic information on nomenclature, synonyms and possible misidentifications; FAO common names; basic information on size, habitat and biology, distribution, importance to fisheries, and conservation and exploitation status.
Download or read book Chondrichthyes written by Luis Fernando Rodrigues-Filho and published by BoD – Books on Demand. This book was released on 2017-12-20 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chondrichthyes are a group of cartilaginous fish, where we have sharks, rays, and chimeras as members. This group plays an important role in aquatic ecology, as they act as predators throughout the food chain (e.g., sharks). However, many populations of Chondrichthyes are threatened by several factors (increased direct fishing, high mortality rate as accompanying fauna, marine pollution, habitat destruction, etc.). These declines are evident in many parts of the world and have come to the attention of scientists, conservation organizations, the media, and the general public. Fisheries legislation regulating international fisheries markets has been amended to provide greater protection for this group along with other species of fish. However, little is known about these species, which reinforces the importance of studies in order to have a better understanding of the elasmobranch stocks, as well as to identify the influences of the anthropic action of fishing. In response to knowledge on the low sustainability of cartilaginous fish fisheries on a global scale, FAO has developed an international plan of action for the management and conservation of these fish, with the aim of developing and implementing national plans of action to ensure management and conservation of these stocks, having as main recommendation the collection of information about the Chondrichthyes, especially the sharks. Even so, this group is little known in terms of biodiversity, ecology, behavior, and a host of other characteristics relevant to this taxon, which is very worrying. Chondrichthyes - Multidisciplinary Approach attempts to portray to the readers up-to-date information on Chondrichthyes to promote an overview of the current taxon, serving as an indispensable source of access to more accurate and detailed information on shark rays and chimeras.
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.
Download or read book FAO Species Catalogue written by Leonard Compagno and published by Food & Agriculture Organization of the UN (FAO). This book was released on 1984 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: A must-have reference for marine biologists; fishery scientists; oceanographers; and marine, zoo, and aquarium veterinarians, this volume brings readers up to speed on significant changes in the study of sharks.
