Misterios dos monstros do rio profundos, algumas pessoas vivem em casas flutuantes, todos os dias em movimento.Este grande e profundo rio nao desiste de seus segredos facilmente.Nas aguas escuras e turvas, ha perigos ocultos, tais como o jacare, a sucuri e pir

The story of a brutal shark attack that cost a woman her arm and much of her leg, and her death-defying recovery. One of the most dreadful experiences humans fear is a shark attack. This horrifying agony is exactly what happened to Nicole Moore, a nurse from Orangeville, Ontario. It was an assault all the more brutal for being so unlikely — she was standing in waist-deep water at a Mexican resort. She came very close to dying, losing 60 percent of her blood from deep bites on her arm and leg, and was rushed to a hospital where she received a questionable level of medical care that left her and her family confronting physical and mental anguish. Surviving gruesome misery, including the amputation of her left arm and attempts to rebuild her disfigured leg, she has fought on to become a source of inspiration for those facing seemingly insurmountable challenges.

As Four Thousand Hooks opens, an Alaskan fishing schooner is sinking. It is the summer of 1972, and the sixteen-year-old narrator is at the helm. Backtracking from the gripping prologue, Dean Adams describes how he came to be a crew member on the Grant and weaves a tale of adventure that reads like a novel--with drama, conflict, and resonant portrayals of halibut fishing, his ragtag shipmates, maritime Alaska, and the ambiguities of family life. At sea, the Grant's crew teach Dean the daily tasks of baiting thousands of longline hooks and handling the catch, and on shore they lead him through the seedy bars and guilty pleasures of Kodiak. Exhausted by twenty-hour workdays and awed by the ocean's raw power, he observes examples of human courage and vulnerability and emerges with a deeper knowledge of himself and the world. Four Thousand Hooks is both an absorbing adventure story and a rich ethnography of a way of life and work that has sustained Northwest families for generations. This coming of age story will appeal to readers including young adults and anyone interested in ocean adventures, commercial fishing, maritime life, and the Northwest coast. Visit the author's website: http://www.fourthousandhooks.com/

No single individual did more to promote sea turtle research and conservation than Archie Carr (1909-1987). So entwined did he become with these creatures and the fight against their overexploitation and loss of habitat that the largest wildlife refuge for loggerhead turtles in the world was named in his honor, and World Sea Turtle Day is celebrated internationally on his birthday, June 16. Carr's work with sea turtles began in the 1940s. His many publications written for general readers, including his 1956 classic The Windward Road,alongside numerous articles for National Geographic and other publications, brought widespread attention to the plight of these animals. So Excellent a Fishe, first published in 1967, combined everything the careful researcher had learned in more than two decades of fieldwork. This groundbreaking book answered many then-unresolved questions about sea turtle behavior, including those about their remarkable migrations. In large part because of the endearing charm of Carr's narrative style, it remains a beloved and often-consulted volume in the field. This new edition captures Carr's gentle humor, his passionate fascination with sea turtles, and his intense love of sharing his knowledge with readers. A foreword by Karen Bjorndal, director of the Archie Carr Center for Sea Turtle Research, brings the story up to date even as it reveals how prescient Carr was more than 45 years ago.

From the fifty-one-foot whale shark "Rhincodon typus" to a less-than-one-half-inch fish in the minnow family--the tiny "Paedocypris progenetica"--fish certainly carry a lot of weight . . . or do they?

A fish's heft in water may vary, but these diverse aquatic animals certainly carry a lot of weight in our ecosystems and environment. From freshwater to ocean habitats, Judith S. Weis offers a fascinating look at these deceptively simple creatures. Fishes may appear to live a dull existence, but appearances change once we understand more about how they survive. These wonders actually possess attributes that would make us superpowers--they can change color, sex, produce light and electricity, regenerate injured fins, prevent themselves from sinking, and some can even walk on land.

"Do Fish Sleep?" is organized in an easy-to-read and accessible question-and-answer format, filled with more than 55 photographs and over 100 interesting facts from fish biology basics to the importance of preserving and restoring fish diversity and healthy populations. A captivating read for fish enthusiasts of all ages--naturalists, environmentalists, aquarists, scuba divers, and students--this is also the perfect primer for those just about to get their feet wet. Dive in

Combining natural history with beguiling autobiographical and historical narrative, To Sea and Back is a dazzling portrait of a fish whose story is closely intertwined with our own. 'Indispensable and powerful... To Sea and Back mingles history with biography and science... Shelton writes with a poet's ear... A writer to be prized.'-- Tom Adair, Scotsman The Atlantic salmon is an extraordinary and mysterious fish. In To Sea and Back, Richard Shelton combines memoir and deep scientific knowledge to reveal, from the salmon's point of view, both the riverine and marine worlds in which it lives. He explores this iconic fish's journey to reach its feeding grounds in the northern oceans before making the return over thousands of miles to the burns of its birth to reproduce. Along the way, Shelton describes the feats of exploration that gave us our first real understanding of the oceans, and shows how this iconic fish is a vital indicator of the health of our rivers and oceans. Above all, To Sea and Back is the story of Richard Shelton's lifelong passion for the sea and his attempt to solve the perennial enigmas of the salmon's secret life.

A search for the endangered beluga whales of Cook Inlet, Alaska, becomes a personal journey and an expose of the forces arrayed against this fascinating--and troubled--species.

Born in the tumbling, oxygen-rich waters of a Pacific Coast stream, Salgair quickly learns about survival of the fittest. Following Salgair, a steelhead trout, as he grows from a small fry in a river to a trophy fish in the ocean, and experiences the dangers, both man-made and natural, that he faces during his life cycle. Barry Thornton is one of British Columbia's best known and respected fishing authors, having earned the Outdoor Writers of Canada Award of Merit, as well as the Roderick Haig-Brown Memorial Award. He has been involved with fishing and the outdoors all his life, as a professional educator and as an outdoors writer and photographer.

In a Panamanian pond, male tungara frogs (Physalaemus pustulosus) gather in choruses, giving their "advertisement" call to the females that move among them. If a female chooses to make physical contact with a male, he will clasp her and eventually fertilize her eggs. But in vying for the females, the males whose calls are most attractive may also attract the interest of another creature: the fringe-lipped bat, a frog eater. In the Tungara Frog, the most detailed and informative single study available of frogs and their reproductive behavior, Michael J. Ryan demonstrates the interplay of sexual and natural selection. Using techniques from ethology, behavioral ecology, sensory physiology, physiological ecology, and theoretical population genetics in his research, Ryan shows that large males with low-frequency calls mate most successfully. He examines in detail a number of explanations for the females' preferences, and he considers possible evolutionary forces leading to the males' success. Though certain vocalizations allow males to obtain mates and thus should be favored by sexual selection, this study highlights two important costs of such sexual displays: the frogs expand considerable energy in their mating calls, and they advertise their whereabouts to predators. Ryan considers in detail how predators, especially the frige-lipped bat (Trachops cirrhosus), affect the evolution of the tungara frog's calls.

Published in 1974, these symposia proceedings examine the management of trout habitat in mountain streams. Conservation organizations, researchers, and land managers, discussed trout habitat management programs and policies. They also identified management problems and present and explored future needs.

The California Current--part of the large, swirling North Pacific gyre--flows slowly southward along the west coast of North America, stretching nearly 2,000 miles from southern British Columbia to the tip of Baja California in Mexico. To a casual observer standing on the shore, the vast current betrays no discernible signs, yet life abounds just over the horizon. Stan Ulanski takes us into the water on a journey through this magnificent, unique marine ecosystem, illuminating the scientific and biological marvels and the astonishing array of flora and fauna streaming along our Pacific coast. The waters of the California Current yield a complex broth of planktonic organisms that form the base of an elaborate food web that many naturalists have compared to the species-rich Serengeti ecosystem of Africa. Every year, turtles, seals, fish, and seabirds travel great distances to feast in the current's distinct biological oases and feeding sites. Apex predators, such as the California gray whale, humpback whale, salmon shark, and bluefin tuna, undertake extensive north-south migrations within the current to find enough to eat. The California Current energizes us to celebrate and protect a marine ecosystem integral to the myriad fisheries, coastal communities, and cultures of the Pacific coast.

The fascinating and heartbreaking account of the first publicly exhibited captive killer whale — a story that forever changed the way we see orcas and sparked the movement to save them Killer whales had always been seen as bloodthirsty sea monsters. That all changed when a young killer whale was captured off the west coast of North America and displayed to the public in 1964. Moby Doll — as the whale became known — was an instant celebrity, drawing 20,000 visitors on the one and only day he was exhibited. He died within a few months, but his famous gentleness sparked a worldwide crusade that transformed how people understood and appreciated orcas. Because of Moby Doll, we stopped fearing “killersâ€� and grew to love and respect “orcas.â€�

Famed marine researcher and illustrator Richard Ellis brings us a work of scientific achievement that will forever change the way we think about fish, fishing, and the dangers inherent in the seafood we eat.
The bluefin tuna is one of the world's biggest, fastest, and most highly evolved marine animals, as well as one of its most popular delicacies. Now, however, it hovers on the brink of extinction. Here Ellis explains how a fish that was once able to thrive has become a commodity--and how the natural world and the global economy converge on our plates. With updated information on mercury levels in tuna, this is at once an astounding ode to one of nature's greatest marvels and a serious examination of a creature and world at risk.

This is the first guide to finding and observing Hawaiian green turtles, or honu. It describes an exciting journey of discovery undertaken by two avid sports divers, Peter Bennett and Ursula Keuper-Bennett, who encountered their first honu twenty years ago while diving off Honokowai, Maui. The Bennetts soon realized that many honu (and green turtles worldwide) were afflicted with debilitating and potentially deadly tumors. They began to document the disease using photographs and videotape and in the process educated themselves about the daily lives of honu. To their surprise, they discovered they were the first to make prolonged observations of a marine turtle population in its natural habitat.Drawing on their extensive experience, the Bennetts explain how to find and watch honu from shore and while snorkeling, kayaking, and especially diving. They describe the behaviors they have documented over the years and what they might mean. Their rich collection of photographs will introduce readers to honu not only as a species, but also as individual animals whose histories they have closely followed and recorded.Thanks to a highly successful conservation and research program and protection granted by the U. S. Endangered Species Act, encounters between sea turtles and humans in Hawai'i have become common. Accessibly written and extensively illustrated, ""The Book of Honu"" will alert turtle enthusiasts and others on what to expect when they come across these gentle creatures and how to observe them respectfully.

In 1981, Woods Hole researcher C. Wylie Poag published the book Ecological Atlas of the Benthic Foraminifera of the Gulf of Mexico. In this new volume, Poag has revised and updated the atlas, incorporating three decades of extensive data collections from the open Gulf and from an additional seventeen estuarine systems to cover species of benthic foraminifera from more than eight thousand sample stations. Benthic Foraminifera of the Gulf of Mexico features 68 plates of scanning electron photomicrographs, 64 color figures, and a large color foldout map, indicating species distribution of forams. This book is designed to aid students and teachers of geology, biology, oceanography, and ecology, as well as micropaleontologists in government and industry laboratories, and other researchers and consultants who have an interest in benthic ecology or paleoecology.

The world's nearly 7,000 species of crabs are immediately recognizable by their claws, sideways movement, stalked eyes, and thick outer shells. These common crustaceans are found internationally, thriving in various habitats from the edge of the sea to the depths of the ocean, in fresh water or on land. Despite having the same basic body type as decapod crustaceans true crabs have heavy exoskeletons and ten limbs with front pincer claws crabs come in an enormous variety of shapes and sizes, from the near microscopic to the giant Japanese spider crab.

In Walking Sideways, Judith S. Weis provides an engaging and informative tour of the remarkable world of crabs, highlighting their unique biology and natural history. She introduces us to recently discovered crabs such as the Yeti crab found in deep sea vents, explains what scientists are learning about blue and hermit crabs commonly found at the shore, and gives us insight into the lifecycles of the king and Dungeness crabs typically seen only on dinner plates. Among the topics Weis covers are the evolution and classification of crabs, their habitats, unique adaptations to water and land, reproduction and development, behavior, ecology, and threats, including up-to-date research.

Crabs are of special interest to biologists for their communication behaviors, sexual dimorphism, and use of chemical stimuli and touch receptors, and Weis explains the importance of new scientific discoveries. In addition to the traditional ten-legged crabs, the book also treats those that appear eight-legged, including hermit crabs, king crabs, and sand crabs. Sidebars address topics of special interest, such as the relationship of lobsters to crabs and medical uses of compounds derived from horseshoe crabs (which aren't really crabs).

While Weis emphasizes conservation and the threats that crabs face, she also addresses the use of crabs as food (detailing how crabs are caught and cooked) and their commercial value from fisheries and aquaculture. She highlights other interactions between crabs and people, including keeping hermit crabs as pets or studying marine species in the laboratory and field. Reminding us of characters such as The Little Mermaid's Sebastian and Sherman Lagoon s Hawthorne, she also surveys the role of crabs in literature (for both children and adults), film, and television, as well in mythology and astrology. With illustrations that offer delightful visual evidence of crab diversity and their unique behaviors, Walking Sideways will appeal to anyone who has encountered these fascinating animals on the beach, at an aquarium, or in the kitchen. "