Several cyanobacterial species can produce powerful toxins that provide a serious threat for water quality, other aquatic organisms, and human health. These harmful cyanobacteria are especially prominent in freshwater ecosystems, and are a major concern for water managers.The purpose of this work is to provide an up-to-date overview of the advances in our knowledge of harmful cyanobacteria. The work is directed towards graduate students and scientists in aquatic microbiology, aquatic ecology, environmental toxicology, and water management, and academic professionals in water management and environmental policy.

The most comprehensive reference guide to the world's sharks-now fully revised and updated Sharks of the World is the essential illustrated guide for anyone interested in these magnificent creatures. Now fully revised and updated, it covers 536 of the world's shark species and is packed with colour illustrations, colour photos and informative diagrams. This comprehensive, easy-to-use reference guide incorporates the latest taxonomic revisions of many shark families, featuring many species that were only described in recent years. It also includes a completely revised and expanded introduction and updated line drawings throughout. Covers 536 shark species from around the world Features updated species accounts, illustrations and maps Gives an illustrated overview of shark biology, ecology and conservation Includes fin identification guides Provides a colour distribution map for every species

The popular image of sharks is of a dorsal fin cleaving the surface as it rushes to its next kill, but this is a limited caricature. There are over 500 species to choose from, most of whom are far more frightened of humans than vice versa. In this beautiful book, diving veteran John Bantin recounts many tales of his diving with several species of sharks and other marine animals over the last 4 decades. Accompanied by his own stunning photography, the captivating, spectacular and sometimes shocking encounters show the reader what it is like to get up close and personal to these bizarre and beautiful creatures. The sharks covered range from the great whale sharks to the small blacktip reef shark, in locations extending to all corners of the globe.

This new field guide is a complete and convenient reference to every species of cetacean, pinniped and sirenian in the world, along with the Marine and Sea Otters and the Polar Bear. Every species is illustrated with magnificent colour paintings and a stunning collection of photographs, chosen to illustrate the key field marks which can be used to separate each species in the field. The author's unique depth of experience and knowledge, coupled with the artist's unrivalled skill, have come together to produce a neat, practical field guide that will enable any observer to quickly identify any mammals they may encounter at sea.

Much can be learned about the condition of the planet’s environment by looking at sea turtles. They have existed for over 100 million years, and they travel throughout the world’s oceans. Suddenly, however, they are struggling to survive - largely because of things people are doing to the planet’s oceans and beaches. But what does this mean for the human species? It is possible that a world in which sea turtles cannot survive may soon become a world in which humans struggle to survive. If, however, we learn from our mistakes and begin changing our behaviour, there is still time to save sea turtles from extinction. In the process, we will be saving one of the earth’s most mysterious and time-honoured creatures. We might just be saving ourselves too. South Africa has played an active role in this, protecting its own seaturtle populations and researching turtle populations in neighbouring countries. An early pioneer in conservation techniques, South Africa has assisted many countries and researchers, and the sea turtles of south-east Africa are now extensively protected, with positive signs of recovery. Between the Tides tells this remarkable story, as seen through the eyes of the author, whose interest in sea-turtle research has taken him all over the world and involved him in exciting expeditions, scientific controversy, political unrest, the companionship of wonderful people, both scientific and conservationist, and survival by sheer luck. His lasting reward has been his association with beautiful beaches and the wonderful family of sea turtles.

Practical and portable, this is the ultimate field guide to the world's cetaceans. This outstanding new field guide to whales, dolphins and porpoises is the most comprehensive, authoritative and up-to-date guide to these popular mammals. With more than 500 accurate illustrations - complete with detailed annotations pointing out the most significant field marks - Field Guide to Whales, Dolphins and Porpoises covers all 93 species and every subspecies in the world. Many of the world's most respected whale biologists have collaborated on the concise text, which is packed with helpful identification tips from cetacean expert, Mark Carwardine. Mark's informative text is accompanied by up-to-date distribution maps for each species. Beautifully designed, to ensure critical information is quickly accessible, this is an indispensable resource that every whale-watcher will want to carry out to sea.

The marine environment is a remarkable place - unfamiliar and a source of endless fascination. The rocky shore where land meets sea, its array of life ever-changing with the tides, offers us a chance to explore this mysterious world. This book reveals the astonishing diversity of wildlife on rocky shores and in the rockpools around the coast and gives readers a greater understanding of the myriad of creatures that can be found using a bit of simple detective work. Rockpooling is an activity enjoyed by children and adults alike. This guide will make your exploration even more rewarding, whether you are an individual or family visiting the seaside or a naturalist wishing to expand your knowledge of a unique habitat. - Detailed descriptions of around 400 common and rare rocky shore species. - Clear colour photographs of all the species described. - Tips and techniques describing how to find the more cryptic animals. - Ideas for rockpool-related family activities. - Information on threats to the intertidal environment. - Measures we can all take to safeguard the future of our rocky shore wildlife.

Dive into the fascinating world of coastal wildlife with this holiday pocket guide. Featuring 40 beautifully illustrated pebbles, shells, crabs, small sea creatures and more, discover more about life between the tides with The Little Guide to Shorelines. Each entry has been delicately illustrated by printmaker Tom Frost to capture its individual characteristics, and is accompanied by associated facts and fables. There is also an interactive spotter's guide at the back, where you can check off what you find. This informative, practical and beautiful guide is part of a new nature series designed to encourage creativity through exploring the outdoors. An activity for adults and children alike, enjoy The Little Guide to Shorelines on your next trip to the sea.

An updated and comprehensive guide identifying all of the world's sharks Sharks are some of the most misunderstood animals on the planet. We still have a lot to learn about these fascinating creatures, which are more seriously threatened with extinction and in greater need of conservation and management than any other major group of vertebrates. A Pocket Guide to Sharks of the World is the only field guide to identify, illustrate, and describe every known shark species. Its compact format makes it handy for many situations, including recognizing living species, fishery catches, or parts sold at markets. This expanded second edition presents lavish images, details on newly discovered species, and updated text throughout. The book contains useful sections on identifying shark teeth and the shark fins most commonly encountered in the fin trade, and takes a look at shark biology, ecology, and conservation. A Pocket Guide to Sharks of the World will be an essential resource and definitive reference for years to come. An updated guide to all of the world's sharks Each species is illustrated and described Handy, compact format with concise text Useful sections on the identification of shark teeth and fins

Great British Marine Animals is a colourful photographic guide to fish and invertebrate life in the seas around Britain. It helps identify a wide range of species and has a special focus on their behaviour with many spreads and sequences of stunning underwater photos to show them going about their busy lives. Beautiful sea anemones lash out with superbly armed tentacles, seemingly invincible crabs shed their armour suits to grow (some decorate them afterwards!), limpets argue with each other, versatile sea slugs recycle defensive weapons from their prey, starfish exert huge forces to pull open their victims while fish can build nests, clean each other or sometimes change sex when the situation demands - to list just a few examples! The extraordinarily sophisticated cuttlefish is given ten pages to show a range of its amazing skills, while the complex social life of the tompot blenny gets nine that even includes a panel of recognised individuals. This expanded 4th edition is much the biggest upgrade so far, containing 930 high quality underwater photographs (compared to 600 in the 3rd edition) and detailing 320 species (up from 280) in 432 pages (up from 320). The book is organised by animal groups and species but has a special additional 'behaviour index' to highlight their wonderfully diverse strategies and habits. It appeals to all ages and levels of knowledge.

An octopus expert and celebrated artist offer a deep dive to meet the enchanting inhabitants of the world's marine ecosystems. Have you ever walked along the beach and wondered what kind of creatures can be found beneath the waves? Have you pictured what it would be like to see the ocean not from the shore, but from its depths? These questions drive Janet Voight, an expert on mollusks who has explored the seas in the submersible Alivn that can dive some 14,000 feet below the water's surface. In this book, she partners with artist Peggy Macnamara to invite readers to share her undersea journeys of discovery. With accessible scientific description, Voight introduces the animals that inhabit rocky and sandy shores, explains the fragility of coral reefs, and honors the extraordinary creatures that must search for food in the ocean's depths, where light and heat are rare. These fascinating insights are accompanied by Macnamara's stunning watercolors, illuminating these ecosystems and other scenes from Voight's research. Together, they show connections between life at every depth-and warn of the threats these beguiling places and their eccentric denizens face.

'Sy Montgomery's The Soul of an Octopus does for the creature what Helen Macdonald's H Is for Hawk did for raptors' New Statesman 'Charming and moving...with extraordinary scientific research' Guardian 'An engaging work of natural science... There is clearly something about the octopus's weird beauty that fires the imaginations of explorers, scientists, writers' Daily Mail In 2011 Sy Montgomery wrote a feature for Orion magazine entitled 'Deep Intellect' about her friendship with a sensitive, sweet-natured octopus named Athena and the grief she felt at her death. It went viral, indicating the widespread fascination with these mysterious, almost alien-like creatures. Since then, Sy has practised true immersion journalism, from New England aquarium tanks to the reefs of French Polynesia and the Gulf of Mexico, pursuing these wild, solitary shape-shifters. Octopuses have varied personalities and intelligence they show in myriad ways: endless trickery to escape enclosures and get food; jetting water playfully to bounce objects like balls; and evading caretakers by using a scoop net as a trampoline and running around the floor on eight arms. But with a beak like a parrot, venom like a snake, and a tongue covered with teeth, how can such a being know anything? And what sort of thoughts could it think? The intelligence of dogs, birds and chimpanzees was only recently accepted by scientists, who now are establishing the intelligence of the octopus, watching them solve problems and deciphering the meaning of their colour-changing camouflage techniques. Montgomery chronicles this growing appreciation of the octopus, but also tells a love story. By turns funny, entertaining, touching and profound, The Soul of an Octopus reveals what octopuses can teach us about consciousness and the meeting of two very different minds.

Make identifying freshwater fish easy and enjoyable. This field guide by Dave Bosanko features detailed information about 87 types of Georgia fish, and the book's waterproof pages make it perfect for the dock or boat. Identify your catches with the intricately detailed fish illustrations, and verify them using the -Similar Species- comparison features. Then read fascinating facts on spawning behavior, feeding habits and more. Plus, match up your best catches against the state and North American records. With inside information for locating fishing hotspots, this book is essential for every tackle box, beach bag, RV and cabin.

This is an invitation to readers to ponder universal questions about human relations with rivers and water for the precarious times of the Anthropocene. The book asks how humans can learn through sensory embodied encounters with local waterways that shape the architecture of cities and make global connections with environments everywhere. The book considers human becomings with urban waterways to address some of the major conceptual challenges of the Anthropocene, through stories of trauma and healing, environmental activism, and encounters with the living beings that inhabit waterways. Its unique contribution is to bring together Australian Aboriginal knowledges with contemporary western, new materialist, posthuman and Deleuzean philosophies, foregrounding how visual, creative and artistic forms can assist us in thinking beyond the constraints of western thought to enable other modes of being and knowing the world for an unpredictable future. Riverlands of the Anthropocene will be of particular interest to those studying the Anthropocene through the lenses of environmental humanities, environmental education, philosophy, ecofeminism and cultural studies.

From time immemorial people have been drawn to the beach to collect practical resources as well as mysterious objects that have fuelled myth and folklore - it is our inherent hunter-gatherer instinct. Whether you are a seasoned beachcomber, a casual visitor or an enthusiastic naturalist this book will satisfy your curiosity about the treasures found cast up on the beach strandline, be it a pretty seashell, a spent eggcase, a seaweed frond or an exotic ocean voyager. Every find has a story to tell and we aim to answer the questions that arise from each beachcombing discovery - what is it and where has it come from? Clear photographs and descriptions are accompanied by information about the natural history of the animals and plants you encounter. Even man-made debris can offer a fascinating introduction to the workings of the ocean and illustrate how items discarded in Africa or America can wash ashore on a British beach.The beach strandline is often overlooked as a wildlife habitat but is home to a unique community of flora and fauna, many found nowhere else. It is understudied and under threat, facing a variety of man-made problems. In this book you will find a comprehensive account of the animals and plants that make up this rich and ever-changing oasis of life in the otherwise harsh environment of the beach. The more we understand the delicate nature of the strandline the more we can do to nurture and protect it.But beware - beachcombing can be an addictive pleasure! Make sure you pack this book every time you visit the beach - there is always something new to discover, whether on a nocturnal strandline safari, making seaweed whistles or hunting minibeasts with pots and pooters. Emmerse yourself in the beachcombing experience; the wind in your face, the smell of salt spray, the roar of the ocean; it's an assault on the senses, the perfect tonic - and this book is your essential guide.

A photographic identification guide to the reef fishes of Seychelles aimed at divers, snorkelers, scientists, students and general fish enthusiasts. To date nearly 900 species of fish have been recorded from coral reefs and their associated habitats within Seychelles Exclusive Economic Zone. With over 550 species and almost 700 photographs all captured in situ, this book represents the most comprehensive field guide to the reef fishes of Seychelles currently available. The general introduction discusses Seychelles' geography and coral reefs, followed by the taxonomy, classification and nomenclature of the species, fish diversity in Seychelles, endemic and endangered fishes, and fish anatomy. The species descriptions cover identifying features, size, biology and distribution.

Relating his experiences caring for endangered whales, a veterinarian and marine scientist shows we can all share in the salvation of these imperiled animals. The image most of us have of whalers includes harpoons and intentional trauma. Yet eating commercially caught seafood leads to whales' entanglement and slow death in rope and nets, and the global shipping routes that bring us readily available goods often lead to death by collision. We-all of us-are whalers, marine scientist and veterinarian Michael J. Moore contends. But we do not have to be. Drawing on over forty years of fieldwork with humpback, pilot, fin, and, in particular, North Atlantic right whales-a species whose population has declined more than 20 percent since 2017-Moore takes us with him as he performs whale necropsies on animals stranded on beaches, in his independent research alongside whalers using explosive harpoons, and as he tracks injured whales to deliver sedatives. The whales' plight is a complex, confounding, and disturbing one. We learn of existing but poorly enforced conservation laws and of perennial (and often failed) efforts to balance the push for fisheries profit versus the protection of endangered species caught by accident. But despite these challenges, Moore's tale is an optimistic one. He shows us how technologies for ropeless fishing and the acoustic tracking of whale migrations make a dramatic difference. And he looks ahead with hope as our growing understanding of these extraordinary creatures fuels an ever-stronger drive for change. For more information on Moore's book and research, please visit his webpage at the Woods Hole Oceanographic Institution.