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Shark Repellents From The Sea

Shark Repellents From The Sea
Author: Bernard J Zahuranec
Publisher: CRC Press
Total Pages: 181
Release: 2019-09-16
Genre: Science
ISBN: 1000311392

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Some species of sharks, because they are large, agile predators, are extremely dangerous to humans in water. During World War II, the long-time goal of an effective shark repellent was partially realized by the U.S. Navy's development of "Shark Chaser," a copper acetate-negrosine dye mixture. But neither Shark Chaser nor other noxious or even extre


Shark Repellents from the Sea

Shark Repellents from the Sea
Author: Bernard J. Zahuranec
Publisher:
Total Pages: 210
Release: 1983
Genre: Shark attacks
ISBN: 9780859351850

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Shadows in the Sea

Shadows in the Sea
Author: Harold Weber McCormick
Publisher:
Total Pages: 415
Release: 1978
Genre: Chondrichthyes
ISBN:

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Toxins, Drugs, and Pollutants in Marine Animals

Toxins, Drugs, and Pollutants in Marine Animals
Author: L. Bolis
Publisher: Springer Science & Business Media
Total Pages: 202
Release: 2012-12-06
Genre: Science
ISBN: 3642699030

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The importance of toxins and other phanuacologically active com pounds obtained from marine animals cannot be emphasized enough. The use of these chemicals for defense or attack of other life fonus are of interest in themselves; however, they are of great importance in our understanding of their mechanisms of action in view of possible application in the defense of man (no doubt a predator) and in biol ogy and medicine. The toxin of the flat fish Pardachirus presented in some of the papers of this book is an example of a defense mechanism based on secretion of a toxin that could possibly be extended to being used to defend man himself from sharks, the marine predators par ex cellence. August, 1984 J. ZADUNAISKY Preface The study of toxins, drugs, and pollutants in the marine environment, and their impact on human life existed already in Babylon and Assyria, Egypt, Persia, India, China, Japan, Greece, Rome and South America. Nevertheless, less is known about ethnic marine biology than about ethnobotany. Only recently however, have active biotoxins been used as molecular probes in neuropharmacology, offering intriguing new insights into nervous activity and muscular functions. It is clear from the presentations at this meeting that much remains to be done, and certainly new, more pharmacologically oriented find ings lie ahead.


Marine Mammals Ashore

Marine Mammals Ashore
Author: Joseph R. Geraci
Publisher: National Aquarium in Baltimore
Total Pages: 386
Release: 2005
Genre: Marine mammals
ISBN: 0977460908

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Comprehensive manual for understanding and carrying out marine mammal rescue activities for stranded seals, manatees, dolphins, whales, or sea otters.


The Shark Watcher's Handbook

The Shark Watcher's Handbook
Author: Mark Carwardine
Publisher:
Total Pages: 287
Release: 2002
Genre: Deep diving
ISBN: 9780563537946

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Shark-watching, whether from the shore, from boats or face-to-face on the sea floor, is one of the fastest-growing activities around the world -last year, more than a quarter of a million people had an intentional underwater encounter with a shark. This book provides all the information necessary to plan a shark-watching trip. The first part of the book explains the background to shark-watching and descibes how it can be done in an eco-friendly way. It summarises the natural history of sharks, gives the truth about shark attacks, explains how to take good photographs under water and provides detailed, illustrated portraits of the 24 most frequently encountered species. The remainder of the book - a Directory of the world's top shark-watching sites, illustrated with high-quality photographs -provides all the practical information needed to plan your shark-watching trips, from when to go, what facilities and weather to expect to what level of expertise is required. This book will be an essential guide - for those who are already addicted to shark-watching and for anyone tempted to try this exciting and adventurous activity for the first time


Cousteau's Great White Shark

Cousteau's Great White Shark
Author: Jean-Michel Cousteau
Publisher: Harry N. Abrams
Total Pages: 176
Release: 1995-02-01
Genre: Nature
ISBN: 9780810981348

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Few creatures are more feared, more talked about, and less known than the great white shark. To learn more about this formidable ocean dweller, the Cousteau team mounted a two-and-a-half year expedition to the south coast of Australia involving some 40 scientists, divers, cameramen, and sailors. This is the story, in words, photographs, and drawings, of the study and all that was learned from it about shark behaviour and biology. Myths and lore about the great white are dispelled, leaving an indelible image of a powerful predator of the seas.


Sharks and People

Sharks and People
Author: Thomas P. Peschak
Publisher: University of Chicago Press
Total Pages: 197
Release: 2014-02-27
Genre: Nature
ISBN: 022604792X

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At once feared and revered, sharks have captivated people since our earliest human encounters. Children and adults alike stand awed before aquarium shark tanks, fascinated by the giant teeth and unnerving eyes. And no swim in the ocean is undertaken without a slight shiver of anxiety about the very real—and very cinematic—dangers of shark bites. But our interactions with sharks are not entirely one-sided: the threats we pose to sharks through fisheries, organized hunts, and gill nets on coastlines are more deadly and far-reaching than any bite. In Sharks and People acclaimed wildlife photographer Thomas Peschak presents stunning photographs that capture the relationship between people and sharks around the globe. A contributing photographer to National Geographic, Peschak is best known for his unusual photographs of sharks—his iconic image of a great white shark following a researcher in a small yellow kayak is one of the most recognizable shark photographs in the world. The other images gathered here are no less riveting, bringing us as close as possible to sharks in the wild. Alongside the photographs, Sharks and People tells the compelling story of the natural history of sharks. Sharks have roamed the oceans for more than four hundred million years, and in this time they have never stopped adapting to the ever-changing world—their unique cartilage skeletons and array of super-senses mark them as one of the most evolved groups of animals. Scientists have recently discovered that sharks play an important role in balancing the ocean, including maintaining the health of coral reefs. Yet, tens of millions of sharks are killed every year just to fill the demand for shark fin soup alone. Today more than sixty species of sharks, including hammerhead, mako, and oceanic white-tip sharks, are listed as vulnerable or in danger of extinction. The need to understand the significant part sharks play in the oceanic ecosystem has never been so urgent, and Peschak’s photographs bear witness to the thrilling strength and unique attraction of sharks. They are certain to enthrall and inspire.


Women in ichthyology: an anthology in honour of ET, Ro and Genie

Women in ichthyology: an anthology in honour of ET, Ro and Genie
Author: E.K. Balon
Publisher: Springer Science & Business Media
Total Pages: 450
Release: 2012-12-06
Genre: Science
ISBN: 940110199X

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This special volume is dedicated to the contributions of women ichthyologists. Three colleagues were selected to represent all women ichthyologists, Ethelwynn Trewavas (ET), Rosemary Lowe-McConnell (Ro) and Eugenie Clark (Genie). All have had distinguished professional careers and have contributed in their own ways to their science. The career of each is highlighted by a personal interview with one of the editors of the volume, a bibliography of their lifetime publications, and a biography of their careers. Questions of historical inequities and current controversies in the treatment of women ichthyologists by their peers are raised and addressed by the women themselves. The personal and professional influences of these three women, and other women ichthyologists, are highlighted. A survey article by Pat Brown brings a number of women ichthyologists to the attention of a broader audience, and points the way for a more comprehensive historical consideration of the accomplishments and contributions of women ichthyologists. The volume continues with 16 solicited and contributed papers. ET's studies of taxonomy and life history are echoed in papers on the taxonomy and systematics of marine angelfishes, and of freshwater bitterlings, a review of reproduction in the North Atlantic ichthyofauna, and a comparison of reproductive styles and systematics of African minnows. Ro's studies on ecology, life history and behaviour are paralleled by papers on growth and metabolism in piranha, the community structure in tide pool fishes, and the social system and reproductive patterns in groupers. Genie's pioneering work on sexual roles and sex change, and her field studies of the behaviour of marine fishes are reflected in papers on gonadal structure and environmental sex determination in brook lamprey, sexual patterns in hawkfish, reproduction and systematics in phallostethids, gonadal structure and systematics in gobiids, reproductive and predator avoidance behaviour in razorfish, early ontogeny of an African mouth brooder, and alternative life histories in killifish.


The behavior and sensory biology of elasmobranch fishes: an anthology in memory of Donald Richard Nelson

The behavior and sensory biology of elasmobranch fishes: an anthology in memory of Donald Richard Nelson
Author: Timothy C. Tricas
Publisher: Springer Science & Business Media
Total Pages: 643
Release: 2013-06-29
Genre: Science
ISBN: 9401732450

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The elasmobranch fishes include the living sharks, skates and rays that are important members of nearly all marine ecosystems. Their large size, secretive behavior, and wide-ranging habits make them difficult to observe in the field or to maintain in captivity. Consequently, little is known about their natural behavior and how it is mediated by their sensory systems. This volume is dedicated to the scientific contributions and memory of Donald Nelson, a pioneer in the study of shark behavior, sensory biology, and remote instrumentation. The two opening papers review Don Nelson's unique scientific accomplishments and provide insight into his strong bias towards study of animals in the field. These are followed by 14 scientific papers on elasmobranch behavior, sensory biology, and current monitoring technologies. The papers on elasmobranch sensory biology and behavior address questions on hearing, the lateral line, electroreception, the brain, orientation behavior, chemical irritants, feeding, and reproduction. The latter section of the volume presents papers on conventional tagging techniques, ultrasonic telemetry, physiological telemetry, remote monitoring techniques, archival tagging and satellite tagging. The intent of this volume is to familiarize both new and established scientists with the sensory biology and behavior of sharks and rays, and to encourage further behavioral research on these animals in their natural environment.