Sharks In Danger Book in PDF, ePub and Kindle version is available to download in english. Read online anytime anywhere directly from your device. Click on the download button below to get a free pdf file of Sharks In Danger book. This book definitely worth reading, it is an incredibly well-written.
Sharks—sleek, fast-moving predators with powerful jaws—can take care of themselves, right? Wrong! Thanks to humans, many shark species are officially endangered and some iconic sharks even face extinction. This has happened through demand for shark fin soup, big-game fishing, ocean pollution, and other threats to their survival. Discover why sharks need our protection and why we need them. True stories and fascinating science combined with superb photographs explain how these incredible hunters have become the hunted—and also how we can protect them in the future.
This book reviews the current status of, and threats to, shark populations globally with special reference to the basking shark and the great white shark. This book outlines why sharks are a valuable resource, identifies threats to sharks and where they occur and reviews what we need to know about sharks in order to protect them. Fisheries management procedures are investigated to target areas requiring future research and implementation. Conservation initiatives, legislation, and international agreements are reviewed and future measures suggested. Case histories on the basking shark and the great white shark detail threats specific to these species and identify research and management requirements. Sharks are a valuable resource both directly through shark watching trips, medical research and commercial and recreational fisheries, and indirectly through the selection pressure they exert on our teleost fisheries, the part they play in maintaining the ecology of the ocean and their intrinsic scientific value. Identifiable threats to sharks are recreational and commercial overfishing and environmental degradation rendered by man such as development of nursery and mating zones and disturbance of the marine environment through netting and trawling. Particular threats to sharks worldwide are the exploitative fin and cartilage trades. Information required for the sustainable management of sharks include life history episodes such as reproductive rates, vulnerable life stages, population dynamics and spatial and temporal distribution. An indepth analysis of white sharks and basking sharks reveal similarities in their reproductive strategies such that both species will follow similar management practices. In reviewing fishery management practises it was found that sustainable management plans must be based upon reproductive rates requiring knowledge of life histories. Life history information is often required for legislative protection such that extremely rare species cannot be considered. Protective legislation should be targeted towards individual species and vulnerable life stages, particularly nursery and mating zones. Further legislation should be enacted to improve current knowledge through data collection.
This book reviews the current status of, and threats to, shark populations globally with special reference to the basking shark and the great white shark. This book outlines why sharks are a valuable resource, identifies threats to sharks and where they occur and reviews what we need to know about sharks in order to protect them. Fisheries management procedures are investigated to target areas requiring future research and implementation. Conservation initiatives, legislation, and international agreements are reviewed and future measures suggested. Case histories on the basking shark and the great white shark detail threats specific to these species and identify research and management requirements.
What makes a great white shark warm-bodied, but not warm-blooded? How many teeth does a great white shark have? What are denticles? Are great white sharks more dangerous to people? Or, are people more dangerous to the great white shark? In Great White Shark, you will learn what is fact and what is fiction where the great white is concerned. Find out what it usually eats. Learn why it sometimes bites people, yet does not always kill the person it bites. Will the great white shark survive the dangers in its habitat, including fishing vessels and tourists?
Master storyteller Benchley ("Jaws") combines high adventure with down-to-earth advice in a book that is at once a thriller and a valuable book about being safe in, on, under, and around the shark infested ocean.
Author : Thomas P. Peschak Publisher : University of Chicago Press Page : 197 pages File Size : 41,9 Mb Release : 2014-02-27 Category : Nature ISBN : 9780226047928
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.
Great white sharks one of the most voracious types of predators in the ocean can grow to be more than twenty feet long and weigh more than 5,000 pounds. With extremely sharp, triangle-shaped teeth, great white sharks spend much of their lives near their primary food source: sea lion colonies.
A healthy ocean is home to many different kinds of animals. They can be big, like a whale, tiny, like a shrimp, and even scary, like a shark. Even though sharks can be scary, we need them to keep the oceans healthy. Unfortunately, due to overfishing, many shark species are in danger of extinction, and that can cause big problems in the oceans and even on land. What would happen if this continued and sharks disappeared completely? Artist Lily Williams explores how the disappearance would affect other animals across the whole planet in this clever book about the importance of keeping sharks, and our oceans, healthy.
Get submerged in the amazing world of sharks! Your expert host, award-winning marine biologist Dr. David Shiffman, will show you how—and why—we should protect these mysterious, misunderstood guardians of the ocean. Sharks are some of the most fascinating, most ecologically important, most threatened, and most misunderstood animals on Earth. More often feared than revered, their role as predators of the deep have earned them a reputation as a major threat to humans. But the truth is that sharks are not a danger to us—they're in danger from us. In Why Sharks Matter, marine conservation biologist Dr. David Shiffman explains why it's crucial that we overcome our misconceptions and rise above cinematic jump scares to embrace sharks as the imperiled and elegant ocean guardians they really are. Sharing his own fascinating experiences working with sharks, Shiffman tells us • why healthy shark populations are a must for supporting ocean ecosystems—and the coastal economies that depend on them • why we're in danger of losing many shark species forever • what scientists, conservationists, and readers can do to help save these iconic predators • why so much of what you've heard about sharks and how to save them is wrong Exploring the core tenets of shark conservation science and policy, Shiffman synthesizes decades of scientific research and policymaking, weaving it into a narrative full of humor and adventure. Touching on everything from Shark Week to shark fin soup, overfishing to marine sanctuaries, Shiffman reveals why sharks are in trouble, why we should care, and how we can save them. Perfect for shark enthusiasts, Why Sharks Matter is an approachable, informative guide to the world of shark conservation and the passionate, fascinating, brilliant people who work to understand and protect our oceans. This fun read will have you looking at sharks with a fresh perspective and an understanding that the survival of sharks is crucial to the survival of another apex predator—ourselves.
The Top 10 Deadliest Sharks in the World by Larry Slawson Pdf
This eBook examines (and ranks) the 10 deadliest sharks in the world. It provides a brief overview of each shark species, discussing their behavioral patterns, basic characteristics, level of aggression, as well as threat to humans.
Though known for being ferocious predators, many sharks are now the ones in danger. Shark finning, pollution, and global warming have driven many sharks to the brink of extinction. Endangered Sharks teaches readers about shortfin mako sharks, whale sharks, great hammerhead sharks, and zebra sharks, and explores how everyone can make a difference to save these endangered species.
If you saw the movie Jaws, you probably formed the opinion that great white sharks are to be feared above all others. Surprise! It turns out bull sharks were probably responsible for the attacks that inspired the book and movie. Many experts consider bull sharks to be the most dangerous of all sharks. Young readers will be thrilled by what they discover about this impressive animal that can thrive in both salt and fresh water environments. Striking, detailed photographs take readers right next to these sharks while an accessible narrative shares important life science concepts. A graphic organizer and fact boxes support the learning experience.