SHARKS FROM THE INSIDE OUT Whale sharks can grow to be 60 feet ( 18. The bigeye houndshark , like many elasmobranchs , has an underslung jaw . Bigeye houndsharks grow to be about 3 feet ( 1 m ) long and can be found in the Red Sea .
Author: Ruth Berman
Publisher: Lerner Publications
Category: Juvenile Nonfiction
Clears up misconceptions about sharks, describes a variety of species, and discusses the behavior and characteristics of sharks
are kingfish , sharks , cuttlefish , shrimp , rock lobster and of fishing effort put by the fishermen in the region . It Trochus . is not surprising then that without such essential Marine aquaculture in the region includes shrimp ...
Author: Ramón Bonfil
Publisher: Food & Agriculture Org.
Category: Business & Economics
This volume presents a fully illustrated field guide for the identification of the sharks and rays most relevant to the fisheries of the Red Sea and Gulf of Aden. An extensive literature review and two field surveys in the region were carried out for the preparation of this document. A total of 49 sharks and 45 batoids reliably reported for the region are listed and those common in the fisheries or likely to be found through fisheries operations are fully treated. 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. Color plates for a large number of the species are included.
According to their eyewitness accounts, the whale carried the shark in its mouth at the surface for several minutes. I wondered: could the whale purposefully be killing the shark by holding it out of the water so that it could not ...
Author: A. Peter Klimley
Publisher: Simon and Schuster
Marine biologist Pete Klimley swims with the sharks. He was one of the first scientists to free-dive among sharks, and he has spent nearly thirty years studying shark behavior, sometimes swimming in schools of several hundred sharks. From his firsthand observations he has learned that sharks are not the vicious man-eaters that we imagine, but fascinating animals with complex behaviors. Most people who think of sharks at all think immediately of great white sharks. But there are more than four hundred species of shark. Dr. Klimley has studied several species, most notably the great white and the hammerhead. (He describes the great white as the athlete among sharks, and the hammerhead as the Ph.D. of the shark world.) In The Secret Life of Sharks Dr. Klimley reveals the significant discoveries he made about hammerhead navigation and great white eating habits. By studying hammerheads gathered around underwater seamounts, Dr. Klimley learned that hammerheads rely on sophisticated tracking of ocean-floor magnetism to navigate. His long-term study of great white sharks off the California coast demonstrated that these huge sharks prefer to eat seals and sea lions because of the energy contained in their fatty bodies. They are selective eaters, not the man-eaters we expect, and they sometimes go weeks between meals. But Dr. Klimley did observe a ritualized behavior that great whites practice in order to avoid deadly disputes over prey that one shark has captured and another wants. Although we have learned a great deal about shark behavior, says Dr. Klimley, there is much that we do not know. Unfortunately we are destroying these magnificent creatures of the deep through overfishing and degradation of the oceans. Already some populations of sharks have declined steeply. Vividly written by one of the foremost authorities on sharks, The Secret Life of Sharks is a fascinating account of some of the world's most magnificent animals.
Enemies Most sharks have very few enemies . Only large ocean animals and people can harm sharks . Killer whales , sperm whales , and large fish might attack smaller sharks . Sometimes larger sharks attack smaller sharks , too .
Author: Kevin J. Holmes
Category: Juvenile Nonfiction
Provides an introduction to the shark, covering its physical characteristics, habits, prey, and relationship to humans.
Unlike other fish, a shark has a skeleton made of cartilage, the same material that makes up the end of your nose. Cartilage is strong, flexible, and lightweight. Are there very many species of sharks? Worldwide, there are over 350 ...
Shark Families Sharks are classified in the Kingdom Animalia, Phylum Chordata, Subphylum Vertebrata, Class Chondrichthyes, Subclass Plagiostomi, Suborder Selachimorpha, Subclass Elasmobranchii. Sharks are divided into 8 orders: 1.
What is a shark? 4 Where in the world do sharks live? 4 Which shark is as big as a whale? 16 Which shark digs for its dinner? 17 How many types of shark are there? 5 Why are sharks so scary? 17 How does a shark swim?
Author: Chloe Schroeter
Publisher: The Rosen Publishing Group, Inc
Category: Juvenile Nonfiction
The ocean is home to hundreds of different kinds of sharks, and the diversity among these species is incredible. So, where can an early reader start when learning about them? Right here! The fastest, biggest, and most unusual sharks are featured to showcase some of the ocean’s most intriguing inhabitants in a straightforward question-and-answer format.
differences in growth trajectories of males and females, we can confidently say that the majority of adult whale sharks are probably between 9 and 13 m in length and, from any viewpoint, that's objectively a very big fish.
Author: Alistair D.M. Dove
Publisher: CRC Press
Whale sharks are the largest of all fishes, fascinating for comparative studies of all manner of biological fields, including functional anatomy, growth, metabolism, movement ecology, behavior and physiology. These gentle ocean giants have captured the interest of scientists and the imagination of the public, yet their future is uncertain. The conservation status of whale sharks was upgraded to Endangered on the IUCN Red List and the species faces a range of intense threats from human activities. Can these iconic living animals, who have survived for millions of years, survive us? Written by the world’s leading experts in whale shark biology, ecology, and conservation, Whale Sharks: Biology, Ecology and Conservation is the first definitive volume about the world's biggest fish. Chapters include discussions of satellite-linked tags, used to track whale shark movements; genetic sequencing, to examine evolutionary adaptations; even the use of underwater ultrasound units to investigate the species’ reproduction. The editors hope that by collating what is known, they can make it easier for future researchers, conservationists, and resource managers to fill some of the remaining knowledge gaps, and provide the information they need to join the team. As you work your way through this book, we hope that you will develop a sense of awe and marvel at all of our good fortune to share the ocean, and the planet, with this utterly extraordinary species.
Most , or all of the maximum recorded sizes contained in the table refer to female sharks , and , indeed , the females of all shark species studied for this attribute average somewhat longer with the average weight appreciably greater ...
Engaging text highlights the life cycle of sharks, from birth through adulthood. This book's easy-to-read text and full-color photographs bring this animal's world to life, introducing readers to the shark's diet, habitat, and enemies and threats. Shark size, body description, and family are also discussed. A diagram helps readers identify body parts, from its mouth to its tail. Fast Facts are great for reports, while Fascinating Facts expand readers' knowledge of sharks. Bold glossary words and an index enhance reader comprehension. Buddy Books is an imprint of ABDO Publishing Company.