Author: Robert K. Dias
Publisher:
ISBN:
Category : Chondrichthyes
Languages : en
Pages : 74
Book Description
South Carolina Fishes of the Class Chondrichthys (sharks, Skates, Rays, Guitarfishes, and Sawfishes)
Author: Robert K. Dias
Publisher:
ISBN:
Category : Chondrichthyes
Languages : en
Pages : 74
Book Description
Publisher:
ISBN:
Category : Chondrichthyes
Languages : en
Pages : 74
Book Description
Sawfishes, Guitarfishes, Skates and Rays, Chimaeroids
Author: Henry B. Bigelow
Publisher: Yale University Press
ISBN: 1933789123
Category : Science
Languages : en
Pages : 605
Book Description
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.
Publisher: Yale University Press
ISBN: 1933789123
Category : Science
Languages : en
Pages : 605
Book Description
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.
Sharks, Skates, Rays, and Chimaeras
Author: John Richard Thompson
Publisher:
ISBN:
Category : Chimaeridae
Languages : en
Pages : 26
Book Description
Publisher:
ISBN:
Category : Chimaeridae
Languages : en
Pages : 26
Book Description
Sharks, Skates, and Rays of the Carolinas
Author: Frank J. Schwartz
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 188
Book Description
This handy illustrated guide covers the ninety-one species of sharks, skates, and rays found in waters along the coasts of North Carolina and South Carolina. It will be an essential reference for shark enthusiasts, coastal residents, tourists, aquarium visitors, scientists, and anyone interested in these fascinating fishes. In his introduction, Frank J. Schwartz provides a general explanation of the physical features of sharks, skates, and rays. He also discusses matters such as the possible causes of shark attacks, conservation concerns surrounding sport and commercial shark fishing, breeding habits, and shark fossils. Each species of shark, skate, and ray is shown in a clear illustration, accompanied by a concise description and notes on its color, size, distribution, and occurrence. A series of keys based on physical characteristics will aid readers in accurately identifying each species.
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 188
Book Description
This handy illustrated guide covers the ninety-one species of sharks, skates, and rays found in waters along the coasts of North Carolina and South Carolina. It will be an essential reference for shark enthusiasts, coastal residents, tourists, aquarium visitors, scientists, and anyone interested in these fascinating fishes. In his introduction, Frank J. Schwartz provides a general explanation of the physical features of sharks, skates, and rays. He also discusses matters such as the possible causes of shark attacks, conservation concerns surrounding sport and commercial shark fishing, breeding habits, and shark fossils. Each species of shark, skate, and ray is shown in a clear illustration, accompanied by a concise description and notes on its color, size, distribution, and occurrence. A series of keys based on physical characteristics will aid readers in accurately identifying each species.
Sawfishes, Guitarfishes, Skates and Rays
Author: Henry Bryant Bigelow
Publisher:
ISBN:
Category : Chimaeridae
Languages : en
Pages : 588
Book Description
Publisher:
ISBN:
Category : Chimaeridae
Languages : en
Pages : 588
Book Description
The reproduction and development of sharks, skates, rays and ratfishes
Author: Leo S. Demski
Publisher: Springer Science & Business Media
ISBN: 940173450X
Category : Science
Languages : en
Pages : 293
Book Description
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.
Publisher: Springer Science & Business Media
ISBN: 940173450X
Category : Science
Languages : en
Pages : 293
Book Description
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.
Sharks, Skates, and Rays
Author: Perry W. Gilbert
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 646
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 646
Book Description
Sharks, Skates, and Rays of the Gulf of Mexico: A Field Guide
Author:
Publisher: Univ. Press of Mississippi
ISBN: 9781604737660
Category : Nature
Languages : en
Pages : 194
Book Description
A guidebook for the naturalist, commercial or recreational fisher, outdoor enthusiast, or beachgoer covers almost all species of sharks and rays that can be found in Gulf waters, and includes information on reproduction, sensory systems, feeding, and more.
Publisher: Univ. Press of Mississippi
ISBN: 9781604737660
Category : Nature
Languages : en
Pages : 194
Book Description
A guidebook for the naturalist, commercial or recreational fisher, outdoor enthusiast, or beachgoer covers almost all species of sharks and rays that can be found in Gulf waters, and includes information on reproduction, sensory systems, feeding, and more.
Sharks, Skates and Rays
Chondrichthyes
Author: Luis Fernando Rodrigues-Filho
Publisher: BoD – Books on Demand
ISBN: 9535137115
Category : Science
Languages : en
Pages : 138
Book Description
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.
Publisher: BoD – Books on Demand
ISBN: 9535137115
Category : Science
Languages : en
Pages : 138
Book Description
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.