Author: Frank J. SchwartzPublisher:
ISBN:
Category : Fishes
Languages : en
Pages : 70
Book Description
Sharks of North Carolina and Adjacent Waters
Author: Frank J. SchwartzPublisher:
ISBN:
Category : Fishes
Languages : en
Pages : 70
Book Description
The Sharks of North America
Author: Jose I. CastroPublisher: OUP USA
ISBN: 0195392949
Category : Nature
Languages : en
Pages : 628
Book Description
A complete reference to all the sharks inhabiting North American waters, with excellent color illustrations of all the species.
The North Carolina Coastal Zone and Its Environment
Author: North Carolina Shark Attacks
Author: John HairrPublisher: Arcadia Publishing
ISBN: 1467153958
Category : History
Languages : en
Pages : 128
Book Description
Millions of tourists visit North Carolina beaches each year, but advertisements promoting fun in the sun along idyllic shores forget to mention the dangers lurking under the waves. The Old North State is home to some very large and lethal sharks--bull sha
The reproduction and development of sharks, skates, rays and ratfishes
Author: Leo S. DemskiPublisher: 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 of the World
Author: Leonard J. V. CompagnoPublisher: Food & Agriculture Org.
ISBN: 9789251045435
Category : Nature
Languages : en
Pages : 288
Book Description
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.
Sharks, Skates, and Rays of the Carolinas
Author: Frank J. SchwartzPublisher:
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.
Sharks in the Shallows
Author: W. Clay CreswellPublisher: Univ of South Carolina Press
ISBN: 1643361813
Category : Nature
Languages : en
Pages : 188
Book Description
A detailed account of over one hundred shark-related incidents on the coast of the Carolinas from a shark-bite investigator Powerful and mysterious, sharks inspire both fascination and fear. Worldwide, oceans are home to some five-hundred species, and of those, fifty-six are known to reside in or pass through the waters off the coast of both North and South Carolina. At any given time, waders, swimmers, and surfers enjoying these waters are frequently within just one-hundred feet of a shark. While it's unnerving to know that sharks often swim just below the surface in the shallows, W. Clay Creswell, a shark-bite investigator for the Shark Research Institute's Global Shark Attack File, explains that attacks on humans are extremely rare. In 2019 the International Shark Attack File confirmed sixty-four unprovoked attacks on humans, including three in North Carolina and one in South Carolina. While acknowledging that they pose real dangers to humans, Creswell believes the fear of sharks is greatly exaggerated. During his sixteen-year association with the Shark Research Institute, he has investigated more than one hundred shark-related incidents and has maintained a database of all shark–human encounters along the Carolina coastlines back to 1817. Creswell uses this data to expose the truth and history of this often-sensationalized topic. Beyond the statistics related to attacks in the Carolina waters, Sharks in the Shallows offers a history of shark–human interactions and an introduction to the world of shark attacks. Creswell details the conditions that increase a person's chances of an encounter, profiles the three species most often involved in attacks, and reveals the months and time of day with the highest probability of an encounter. With a better understanding of sharks' responses to their environment, and what motivates them to attack humans, he hopes people will develop a greater appreciation of the invaluable role sharks play in our marine environment.
Baseline Report of Environmental Conditions in Deepwater Dumpsite 106
Author: National Ocean SurveyPublisher:
ISBN:
Category : Waste disposal in the ocean
Languages : en
Pages : 276
Book Description
Results of three seasonal baseline investigations in and about Deepwater Dumpsite 106 (DWD-106), located ninety nautical miles east of Cape Hanlopen, Delaware, conducted in 21-month period from May 1974 to February 1976.
Author: