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Books > Science & Mathematics > Biology, life sciences > Hydrobiology

Marine Ecosystems and Global Change (Paperback): Manuel Barange, John G. Field, Roger P. Harris, Eileen E. Hofmann, R. Ian... Marine Ecosystems and Global Change (Paperback)
Manuel Barange, John G. Field, Roger P. Harris, Eileen E. Hofmann, R. Ian Perry, …
R2,216 Discovery Miles 22 160 Ships in 10 - 15 working days

Global environmental change (including climate change, biodiversity loss, changes in hydrological and biogeochemical cycles, and intensive exploitation of natural resources) is having significant impacts on the world's oceans. This handbook advances knowledge of the structure and functioning of marine ecosystems, and their past, present, and future responses to physical and anthropogenic forcing. It illustrates how climate and humans impact marine ecosystems, providing a comprehensive review of the physical and ecological processes that structure marine ecosystems as well as the observation, experimentation, and modelling approaches required for their study. Recognizing the interactive roles played by humans in using marine resources and in responding to global changes in marine systems, the book includes chapters on the human dimensions of marine ecosystem changes and on effective management approaches in this era of rapid change. A final section reviews the state of the art in predicting the responses of marine ecosystems to future global change scenarios with the intention of informing both future research agendas and marine management policy.
Marine Ecosystems and Global Change provides a detailed synthesis of the work conducted under the auspices of the Global Ocean Ecosystems Dynamics (GLOBEC) program. This research spans two decades, and represents the largest, multi-disciplinary, international effort focused on understanding the impacts of external forcing on the structure and dynamics of global marine ecosystems.

The Caribbean Coral Reef - A Record of an Ecosystem Under Threat (Hardcover): William K. Sacco The Caribbean Coral Reef - A Record of an Ecosystem Under Threat (Hardcover)
William K. Sacco
R3,085 Discovery Miles 30 850 Ships in 10 - 15 working days

Caribbean coral reefs have unique species, are the world’s second largest coral reef community, and the most threatened. This book will be of major interest to all concerned with saving coral reefs from extinction. No other book available shows Caribbean coral reefs when they were at their best. It is only by comparing the images in this book with what they see now that people can recognize what we have lost. It is far more than they can imagine! Those who did not see it themselves can only do so through this book. Jim Porter’s insightful commentary in the Foreword adds crucial scientific perspective. Other books do not provide a one volume summary of all the major species on the Caribbean reef. This book is also more accurate in important systematic organization than other books in this field. The author’s excellent photographs convey clear concepts of processes and key aspects of species for identification. The book is written in an engaging story-telling style, yet clearly and concisely communicating the essential scientific concepts. Whereas most books have chapters dividing up one topic, this book is divided into different kinds of information which are essential to understanding coral reefs: how reefs are structured, corals, invertebrates, fishes, cryptic or hidden organisms, the community at night and others. One review states "After 52 years of researching coral reefs, I find this is the best book to present what reefs should be like, and were like 50 years ago. It is also written in a style accessible to recreational divers who wish to know the organisms, processes, and structures they are seeing." Another says "The first thing that will strikes the reader is the exquisite photography. There are many great underwater photographers, but the author is in a class by himself. Once the first impact of the astounding photography is accepted, the reader will be struck by what might be called the scientific integrity of the book." While this book is 'a time machine' taking the reader back to when these reefs thrived, there is optimism that we may see these reefs again as they appear in this book.

Exploring Marine Biology - Laboratory and Field Exercises (Paperback): Haefner Exploring Marine Biology - Laboratory and Field Exercises (Paperback)
Haefner
R3,768 Discovery Miles 37 680 Ships in 18 - 22 working days

This book is the only manual of its kind with exercises that apply to the diverse marine habitats of North America. The manual meets the needs of any introductory marine biology student, from the non-major to the prospective major with a background in the biological sciences. Each unit includes a broad range of exercises, so that instructors using the manual can select the exercises that best match the needs of their introductory course. The manual is also unique in providing extensively illustrated identification keys for three of the major marine lifeforms, allowing students to identify and classify organisms within the invertebrates, plankton, and fishes.

The Biology of Rocky Shores (Hardcover, 2nd Revised edition): Colin Little, Gray A. Williams, Cynthia D. Trowbridge The Biology of Rocky Shores (Hardcover, 2nd Revised edition)
Colin Little, Gray A. Williams, Cynthia D. Trowbridge
R4,007 Discovery Miles 40 070 Ships in 10 - 15 working days

This new edition offers a concise but comprehensive introduction to rocky shore ecology and has been completely revised and updated throughout. It describes the diverse biota (invertebrates, vertebrates, seaweeds, seagrasses and microalgae) that inhabit rocky shores, and the factors that determine their distributions, abundances and interactions. The book discusses the latest research on processes that control community structure, utilizing a global range of examples from a wide range of shore types - both temperate and tropical.
The Biology of Rocky Shores begins by describing the shore environment, including the conditions caused by tidal rise and fall as well as an introduction to the effects of waves. It goes on to describe the biodiversity of the rocky shore environment, from seaweeds and cyanobacteria to starfish and oystercatchers, and some of the adaptations these organisms exhibit on the shore. The book discusses in turn the biology of primary producers, grazers, suspension feeders and predators, and the ways in which these trophic groups interact in various communities. The vertical and horizontal distributions of species in relation to the tidal cycle and wave exposure are also considered. The contributions that species make in determining how rocky-shore communities function, and how they interact with off-shore systems, are explored in detail. Human influences, notably pollution, over-fishing and the introduction of alien species, are discussed in the context of rocky shore conservation and future management strategies. A final chapter offers guidance on methods of study, techniques, and experimental approaches.
New to this Edition:
This second edition adds several dimensions to the first, by incorporating the expertise of two new authors, one based in Hong Kong, the other in USA. Since the original edition in 1996, views of how rocky shore communities are regulated have changed, and the book discusses these changes. It is no longer limited to the north-west Atlantic, but covers rocky shores worldwide. It discusses the diversity of shore organisms in terms of functional groups, and it now gives a detailed account of how organisms have adapted to the physical constraints of living on rocky shores. It provides advice on methods and experimental approaches. Black and white photographs and many new line drawings have been added to the original figures.
This new edition also feature 80% new text and 50% new illustrations.
Each of the books in the Oxford Biology of Habitats Series introduces a different habitat, and gives an integrated overview of the design, physiology, ecology, and behaviour of the organisms found there. The practical aspects of working within each habitat, the sorts of studies that are possible, and habitat biodiversity and conservation status are all explored.

The Biology of Rocky Shores (Paperback, 2nd Revised edition): Colin Little, Gray A. Williams, Cynthia D. Trowbridge The Biology of Rocky Shores (Paperback, 2nd Revised edition)
Colin Little, Gray A. Williams, Cynthia D. Trowbridge
R1,424 Discovery Miles 14 240 Ships in 10 - 15 working days

This new edition offers a concise but comprehensive introduction to rocky shore ecology and has been completely and updated throughout. It describes the diverse biota (invertebrates, vertebrates, seaweeds, seagrasses and microalgae) that inhabit rocky shores, and the factors that determine their distributions, abundances and interactions. The book discusses the latest research on processes that control community structure, utilizing a global range of examples from a wide range of shore types - both temperate and tropical.
The Biology of Rocky Shores begins by describing the shore environment, including the conditions caused by tidal rise and fall as well as an introduction to the effects of waves. It goes on to describe the biodiversity of the rocky shore environment, from seaweeds and cyanobacteria to starfish and oystercatchers, and some of the adaptations these organisms exhibit on the shore. The book discusses in turn the biology of primary producers, grazers, suspension feeders and predators, and the ways in which these trophic groups interact in various communities. The vertical and horizontal distributions of species in relation to the tidal cycle and wave exposure are also considered. The contributions that species make in determining how rocky-shore communities function, and how they interact with off-shore systems, are explored in detail. Human influences, notably pollution, over-fishing and the introduction of alien species, are discussed in the context of rocky shore conservation and future management strategies. A final chapter offers guidance on methods of study, techniques, and experimental approaches.
This accessible text is suitable for both undergraduate and graduate students taking courses in rocky shore ecology and marine biology as well as the many professional ecologists, conservation biologists, teachers and amateur naturalists seeking a concise, affordable, and authoritative overview of the topic.
Each of the books in the Oxford Biology of Habitats Series introduces a different habitat, and gives an integrated overview of the design, physiology, ecology, and behaviour of the organisms found there. The practical aspects of working within each habitat, the sorts of studies that are possible, and habitat biodiversity and conservation status are all explored.

The Sea - Nature and Culture (Paperback): Richard Hamblyn The Sea - Nature and Culture (Paperback)
Richard Hamblyn
R551 R499 Discovery Miles 4 990 Save R52 (9%) Ships in 9 - 17 working days

This book explores the sea and its meanings from ancient myths to contemporary geopolitics, from Atlantis to the Mediterranean migrant crisis. Richard Hamblyn traces a cultural and geographical journey from estuary to abyss, beginning with the topographies of the shoreline and ending with the likely futures of our maritime environments. Along the way, the sea becomes a site of work and endurance, of story and song, of language, leisure and longing. By considering the sea as both a physical and a cultural presence, this book shines new light upon it, and its indelible place in the human imagination.

Advanced Distance Sampling - Estimating abundance of biological populations (Paperback, New Ed): S.T. Buckland, D.R. Anderson,... Advanced Distance Sampling - Estimating abundance of biological populations (Paperback, New Ed)
S.T. Buckland, D.R. Anderson, K.P. Burnham, J.L. Laake, D.L. Borchers, …
R1,941 Discovery Miles 19 410 Ships in 10 - 15 working days

This advanced text focuses on the uses of distance sampling to estimate the density and abundance of biological populations. It addresses new methodologies, new technologies and recent developments in statistical theory and is the follow up companion to Introduction to Distance Sampling (OUP, 2001).
In this text, a general theoretical basis is established for methods of estimating animal abundance from sightings surveys, and a wide range of approaches to analysis of sightings data is explored. These approaches include: modelling animal detectability as a function of covariates, where the effects of habitat, observer, weather, etc. on detectability can be assessed; estimating animal density as a function of location, allowing for example animal density to be related to habitat and other locational covariates; estimating change over time in populations, a necessary aspect of any monitoring program; estimation when detection of animals on the line or at the point is uncertain, as often occurs for marine populations, or when the survey region has dense cover; survey design and automated design algorithms, allowing rapid generation of sound survey designs using geographic information systems; adaptive distance sampling methods, which concentrate survey effort in areas of high animal density; passive distance sampling methods, which extend the application of distance sampling to species that cannot be readily detected in sightings surveys, but can be trapped; and testing of methods by simulation, so that performance of the approach in varying circumstances can be assessed.

The Biology of Temporary Waters (Paperback): D.Dudley Williams The Biology of Temporary Waters (Paperback)
D.Dudley Williams
R2,199 Discovery Miles 21 990 Ships in 10 - 15 working days

Temporary waters are found throughout the world, and include intermittent streams and ponds, episodic rain puddles, seasonal limestone lakes, the water-retaining structures of plants, such as bromeliads and pitcher plants, and a variety of man-made container habitats. They are probably populated by various plant, animal, and microscopic communities ranging from the very simple to the highly complex. Temporary waters therefore represent fascinating and significant arenas in which to study the properties of species, as the latter deal with the rigours of living in highly variable environments. Obligate temporary water species display a remarkable array of adaptations to the periodic loss of their primary medium that largely set them apart from the inhabitants of permanent water bodies. Survival of individuals frequently depends upon exceptional physiological tolerance or effective migrational abilities that are timed to appropriate habitat phases. Quite apart from their inherent biological interest, temporary waters are now in the limelight from a conservation perspective as these habitats come more and more into conflict with human activities. Traditionally, many temporary waters (be they ponds, pools, streams, or wetlands) have been considered to be 'wasted' areas of land, potentially convertible to agriculture once drained. In reality, they are natural features of the global landscape that represent distinct and unique habitats for many species, some that are found nowhere else and others that reach their maximum abundance and/or genetic diversity there. Temporary waters are also very important from a human health perspective since they function as breeding places for the vectors of many disease organisms, including those that spread malaria, schistosomiasis, yellow fever, and dengue. Most of these exact a high toll in terms of global human suffering and reduced regional economies. This book collates and synthesises the highly scattered and diverse global literature on pure and applied aspects of these habitats and their biota. It examines the ecology of temporary waters in both natural and human environments, and seeks to identify common evolutionary themes. It will be of particular interest to aquatic ecologists, invertebrate and vertebrate biologists, environmental biologists, wetland managers and conservationists, those charged with controlling water-associated diseases, entomologists, educators, and natural historians.

Aquatic Food Webs - An ecosystem approach (Paperback): Andrea Belgrano, Ursula M. Scharler, Jennifer Dunne, Robert E. Ulanowicz Aquatic Food Webs - An ecosystem approach (Paperback)
Andrea Belgrano, Ursula M. Scharler, Jennifer Dunne, Robert E. Ulanowicz
R2,611 Discovery Miles 26 110 Ships in 10 - 15 working days

This volume provides a current synthesis of theoretical and empirical food web research. Whether they are binary systems or weighted networks, food webs are of particular interest to ecologists in providing a macroscopic view of ecosystems. They describe interactions between species and their environment, and subsequent advances in the understanding of their structure, function, and dynamics are of vital importance to ecosystem management and conservation. Aquatic Food Webs provides a synthesis of the current issues in food web theory and its applications, covering issues of structure, function, scaling, complexity, and stability in the contexts of conservation, fisheries, and climate. Although the focus of this volume is upon aquatic food webs (where many of the recent advances have been made), any ecologist with an interest in food web theory and its applications will find the issues addressed in this book of value and use. This advanced textbook is suitable for graduate level students as well as professional researchers in community, ecosystem, and theoretical ecology, in aquatic ecology, and in conservation biology.

Advanced Distance Sampling - Estimating abundance of biological populations (Hardcover, New): S.T. Buckland, D.R. Anderson,... Advanced Distance Sampling - Estimating abundance of biological populations (Hardcover, New)
S.T. Buckland, D.R. Anderson, K.P. Burnham, J.L. Laake, D.L. Borchers, …
R3,101 Discovery Miles 31 010 Ships in 10 - 15 working days

This advanced text focuses on the uses of distance sampling to estimate the density and abundance of biological populations. It addresses new methodologies, new technologies and recent developments in statistical theory and is the follow up companion to Introduction to Distance Sampling (OUP, 2001). In this text, a general theoretical basis is established for methods of estimating animal abundance from sightings surveys, and a wide range of approaches to analysis of sightings data is explored. These approaches include: modelling animal detectability as a function of covariates, where the effects of habitat, observer, weather, etc. on detectability can be assessed; estimating animal density as a function of location, allowing for example animal density to be related to habitat and other locational covariates; estimating change over time in populations, a necessary aspect of any monitoring programme; estimation when detection of animals on the line or at the point is uncertain, as often occurs for marine populations, or when the survey region has dense cover; survey design and automated design algorithms, allowing rapid generation of sound survey designs using geographic information systems; adaptive distance sampling methods, which concentrate survey effort in areas of high animal density; passive distance sampling methods, which extend the application of distance sampling to species that cannot be readily detected in sightings surveys, but can be trapped; and testing of methods by simulation, so that performance of the approach in varying circumstances can be assessed. Authored by a leading team this text is aimed at professionals in government and environment agencies, statisticians, biologists, wildlife managers, conservation biologists and ecologists, as well as graduate students, studying the density and abundance of biological populations.

Deep-Sea Biodiversity - Pattern and Scale (Hardcover): Michael A Rex, Ron J Etter Deep-Sea Biodiversity - Pattern and Scale (Hardcover)
Michael A Rex, Ron J Etter
R1,562 Discovery Miles 15 620 Ships in 10 - 15 working days

Frigid, dark, and energy-deprived, the deep sea was long considered hostile to life. However, new sampling technologies and intense international research efforts in recent decades have revealed a remarkably rich fauna and an astonishing variety of novel habitats. These recent discoveries have changed the way we look at global biodiversity. In "Deep-Sea Biodiversity," Michael Rex and Ron Etter present the first synthesis of patterns and causes of biodiversity in organisms that dwell in the vast sediment ecosystem that blankets the ocean floor. They provide the most comprehensive analysis to date of geographic variation in benthic animal abundance and biomass. The authors document geographic patterns of deep-sea species diversity and integrate potential ecological causes across scales of time and space. They also review the most recent molecular population genetic evidence to describe how and where evolutionary processes have generated the unique deep-sea fauna. "Deep-Sea Biodiversity" offers a new understanding of marine biodiversity that will be of general interest to ecologists and is crucial to responsible exploitation of natural resources at the deep-sea floor.

The Brains and Lives of Cephalopods (Hardcover): Marion Nixon, John Z. Young (Deceased) The Brains and Lives of Cephalopods (Hardcover)
Marion Nixon, John Z. Young (Deceased)
R5,172 Discovery Miles 51 720 Ships in 10 - 15 working days

Cephalopods are fast-moving, voracious predators, and can change colour with breath-taking rapidity. They range from the giant squid, the world's largest marine invertebrate, to species of only 2 cm in length. Inhabitants of most seas of the world, they are found from the surface to great depths. Most cephalopods have short lives yet their efficiency in capturing and consuming prey ensures rapid growth. These animals possess highly-developed nervous systems, large brains, elaborate senses, complex behaviour and are capable of learning. Many of these features are described and illustrated with line drawings and photomicrographs.

A Practical Guide to Developmental Biology (Paperback): Melissa Ann Gibbs A Practical Guide to Developmental Biology (Paperback)
Melissa Ann Gibbs
R1,796 Discovery Miles 17 960 Ships in 10 - 15 working days

This lab manual is designed to give students experience with a wide variety of model systems currently in use by developmental biologists. Experiments range from classic slide or whole animal observations to more modern immunohistochemistry and manipulation of gene expression. All of these experiments can be completed on a relatively small budget.

The Biology of the Deep Ocean (Paperback): Peter Herring The Biology of the Deep Ocean (Paperback)
Peter Herring
R2,254 Discovery Miles 22 540 Ships in 10 - 15 working days

Erratum: Table 11.1 on page 241 has been mis-set. The entries for the phyla Annelida, Bryozoa, Cnidaria, Echiura, Mollusca, Placozoa, Porifera and Rotifera should all be moved one column to the right.

The deep sea environment is the most extensive on our planet. Its denizens are normally unseen but whenever they are exposed to view they are regarded as bizarre aliens from a different world. The Biology of the Deep Ocean takes a close look at this apparently hostile world and explains how its inhabitants are exquisitely adapted to survive and flourish within it.

Marine Pollution (Paperback, 5th Revised edition): Robert Clark Marine Pollution (Paperback, 5th Revised edition)
Robert Clark
R2,160 Discovery Miles 21 600 Ships in 10 - 15 working days

The market leading textbook in marine pollution now in its fifth edition. The problems of pollution in the seas worldwide are explained clearly, unemotionally, and authoritatively. It is designed as an introductory textbook, but no particular knowledge is demanded of the reader; it can be used by engineers, economists, lawyers, or environmentalists who need to be informed about the effects of materials which are deliberately or accidentally discharged into the sea.

Oceanography and Marine Biology - An Annual Review, Volume 50 (Hardcover, New): R.N. Gibson, R.J.A. Atkinson, J. D. M. Gordon,... Oceanography and Marine Biology - An Annual Review, Volume 50 (Hardcover, New)
R.N. Gibson, R.J.A. Atkinson, J. D. M. Gordon, R. N Hughes
R5,787 Discovery Miles 57 870 Ships in 10 - 15 working days

Ever-increasing interest in oceanography and marine biology and their relevance to global environmental issues creates a demand for authoritative reviews summarising the results of recent research. Oceanography and Marine Biology: An Annual Review has catered to this demand since its founding by the late Harold Barnes fifty years ago. Its objectives are to consider, annually, the basic areas of marine research, returning to them when appropriate in future volumes; to deal with subjects of special and topical importance; and to add new subjects as they arise.

The favourable reception accorded to all the volumes shows that the series is fulfilling a very real need: reviews and sales have been gratifying. A milestone in the history of the series, the fiftieth volume follows closely the objectives and style of the earlier volumes, continuing to regard the marine sciences with all their various aspects as a unity. Physical, chemical, and biological aspects of marine science are dealt with by experts actively engaged in these fields.

The series is an essential reference text for researchers and students in all fields of marine science and related subjects, and it finds a place in libraries of not only marine stations and institutes, but also universities. It is consistently among the highest ranking impact factors for the marine biology category of the citation indices compiled by the Institute for Scientific Information.

Meeresbiologische Exkursion - Beobachtung und Experiment (German, Paperback, 1992. Unverand. Nachdruck 2013): Peter... Meeresbiologische Exkursion - Beobachtung und Experiment (German, Paperback, 1992. Unverand. Nachdruck 2013)
Peter Emschermann, Odwin Hoffrichter, Helge Koerner, Dieter Zissler
R843 Discovery Miles 8 430 Ships in 18 - 22 working days

Meeresbiologische Exkursionen sind besondere Hohepunkte des Biologiestudiums, weil Studenten bei kaum einer anderen Gelegenheit die uberwaltigende Formenmannigfaltigkeit der Organismen so unmittelbar lebend kennenlernen konnen.

47 Meeresbiologen aus Deutschland, Frankreich, Grossbritannien und Osterreich haben aus ihrem Erfahrungsschatz 60 faunistische und floristische, okophysiologische und ethologische Versuche zusammengetragen, die jeweils eine geschlossene Einheit mit Anleitung, Material und Literaturangaben darstellen. Die Gliederung folgt den drei Lebensgemeinschaften Benthos, Plankton und Nekton.

Dieses Buch soll Exkursionsleitern und -teilnehmern dazu dienen, Exkursionen an Nordsee, Atlantik und Mittelmeer vorzubereiten, durchzufuhren und auszuwerten, wozu auch die Anschriften und Hinweise uber die Ausstattung der grossen meeresbiologischen Stationenbeitragen."

A Student's Guide to the Seashore (Paperback, 3rd Revised edition): J.D. Fish, S. Fish A Student's Guide to the Seashore (Paperback, 3rd Revised edition)
J.D. Fish, S. Fish
R1,727 Discovery Miles 17 270 Ships in 10 - 15 working days

This unique, concise and beautifully-illustrated guide allows students to identify over 650 of the common, widespread animals and seaweeds of the shore. User-friendly dichotomous keys are supported by details of diagnostic features and biology of each species. Now enhanced with 32 pages of colour, this much acclaimed guide is invaluable to students of marine biology at any level. Questions such as how does the species reproduce? What is its life-cycle? How does it feed? are answered in the notes accompanying each species to give a fascinating insight into the diversity and complexity of life on the shore. The text is supported by an extensive glossary of scientific terms and a comprehensive bibliography is included to aid further study. The third edition builds on the excellent reviews of earlier editions and will continue to appeal to a wide readership, including students, teachers and naturalists.

Fishes of the Salish Sea - Puget Sound and the Straits of Georgia and Juan de Fuca (Hardcover): Theodore Wells Pietsch, James... Fishes of the Salish Sea - Puget Sound and the Straits of Georgia and Juan de Fuca (Hardcover)
Theodore Wells Pietsch, James Wilder Orr; Illustrated by Joseph R. Tomelleri
R4,291 R3,540 Discovery Miles 35 400 Save R751 (18%) Ships in 18 - 22 working days

Fishes of the Salish Sea is the definitive guide to the identification and history of the marine and anadromous fishes of Puget Sound and the Straits of Georgia and Juan de Fuca. This comprehensive three-volume set, featuring striking illustrations of the Salish Sea's 260 fish species by noted illustrator Joseph Tomelleri, details the ecology and life history of each species and recounts the region's rich heritage of marine research and exploration. Beginning with jawless hagfishes and lampreys and ending with the distinctive Ocean Sunfish, leading scientists Theodore Wells Pietsch and James Orr present the taxa in phylogenetic order, based on classifications that reflect the most current scientific knowledge. Illustrated taxonomic keys facilitate fast and accurate species identification. These in-depth, thoroughly documented, and yet accessible volumes will prove invaluable to marine biologists and ecologists, natural resource managers, anglers, divers, students, and all who want to learn about, marvel over, and preserve the vibrant diversity of Salish Sea marine life. Comprehensive accounts of 260 fish species Brilliant color plates of all treated species Illustrated taxonomic keys for easy species identification In-depth history of Salish Sea research and exploration

Reef Fish Identification - Baja to Panama (Paperback): Paul Humann, Ned Deloach Reef Fish Identification - Baja to Panama (Paperback)
Paul Humann, Ned Deloach
R1,120 R807 Discovery Miles 8 070 Save R313 (28%) Ships in 10 - 15 working days

The most comprehensive field guide ever compiled for identifying reef fishes from the Gulf of California to the Pacific coast of Panama, including offshore islands. Over 500 photographs of 400 species taken in their natural habitat. The book is dedicated to Baja Legend Alex Kerstitch and includes several of his drawings and photographs. The concise text accompanying each species portrait includes the fishs common, scientific and family names, size range, description, visually distinctive features, preferred habitat, typical behaviour, depth range, and geographical distribution.

The Book of Shells - A Life-Size Guide to Identifying and Classifying Six Hundred Seashells (Hardcover): M.G. Harasewych, Fabio... The Book of Shells - A Life-Size Guide to Identifying and Classifying Six Hundred Seashells (Hardcover)
M.G. Harasewych, Fabio Moretzsohn
R1,523 Discovery Miles 15 230 Ships in 10 - 15 working days

Who among us hasn't marveled at the diversity and beauty of shells? Or picked one up, held it to our ear, and then gazed in wonder at its shape and hue? Many a lifelong shell collector has cut teeth (and toes) on the beaches of the Jersey Shore, the Outer Banks, or the coasts of Sanibel Island. Some have even dived to the depths of the ocean. But most of us are not familiar with the biological origin of shells, their role in explaining evolutionary history, and the incredible variety of forms in which they come.
Shells are the external skeletons of mollusks, an ancient and diverse phylum of invertebrates that are in the earliest fossil record of multicellular life over 500 million years ago. There are over 100,000 kinds of recorded mollusks, and some estimate that there are "over a""million more "that have yet to be discovered. Some breathe air, others live in fresh water, but most live in the ocean. They range in size from a grain of sand to a beach ball and in weight from a few grams to several hundred pounds. And in this lavishly illustrated volume, they finally get their full due.
"
The Book of Shells "offers a visually stunning and scientifically engaging guide to six hundred of the most intriguing mollusk shells, each chosen to convey the range of shapes and sizes that occur across a range of species. Each shell is reproduced here at its actual size, in full color, and is accompanied by an explanation of the shell's range, distribution, abundance, habitat, and operculum--the piece that protects the mollusk when it's in the shell. Brief scientific and historical accounts of each shell and related species include fun-filled facts and anecdotes that broaden its portrait.
The Matchless Cone, for instance, or "Conus cedonulli," was one of the rarest shells collected during the eighteenth century. So much so, in fact, that a specimen in 1796 was sold for more than six times as much as a painting by Vermeer at the same auction. But since the advent of scuba diving, this shell has become far more accessible to collectors--though not without certain risks. Some species of "Conus" produce venom that has caused more than thirty known human deaths.
The Zebra Nerite, the Heart Cockle, the Indian Babylon, the Junonia, the Atlantic Thorny Oyster--shells from habitats spanning the poles and the tropics, from the highest mountains to the ocean's deepest recesses, are all on display in this definitive work.

A Sea Monster's Tale - In Search of the Basking Shark (Hardcover): Colin Speedie A Sea Monster's Tale - In Search of the Basking Shark (Hardcover)
Colin Speedie
R864 R808 Discovery Miles 8 080 Save R56 (6%) Ships in 9 - 17 working days

Colin Speedie's new book takes us from swashbuckling hunts of giant sharks by reckless individuals with makeshift harpoons, through an age of mass slaughter, to the author's personal shark-tracking adventures in the name of conservation.There are few marine creatures as spectacular as the Basking Shark. At up to 11 metres in length and seven tonnes in weight, this colossal, plankton-feeding fish is one of the largest in the world, second only to the whale shark. Historically, Basking Sharks were a familiar sight in the northern hemisphere - off the coasts of Norway, Scotland, Ireland, Canada and the USA, for example. In an 18th Century world without electricity, they became the focus of active hunting for their huge livers containing large amounts of valuable oil, primarily used in lamps.Catch numbers were small enough to leave populations largely intact, but during the 20th Century a new breed of hunter joined the fray, some driven as much by a need for adventure as for financial gain. With improved equipment and experience, they exploited the shark on an industrial scale that drastically reduced numbers, leading to localised near-extinction in some areas.From the 1970's onward a new generation took to the seas, this time with conservation in mind to identify where the shark might still be found in the waters around the British Isles, employing new technologies to solve long-standing mysteries about the behaviour of this elusive creature. Using the best of both old and new research techniques, the case was built to justify the species becoming one of the most protected sharks in the oceans.Today, the Basking Shark is a much-loved cornerstone of our natural heritage. There are positive signs that the population has stabilised and may even be slowly recovering from the damage of the past, proving that timely conservation measures can be effective.Join us on a journey amidst wild seas, places, people and conservation history in the battle to protect this iconic creature - a true sea monster's tale.

Challenges in Estuarine and Coastal Science - Estuarine and Coastal Sciences Association 50th Anniversary Volume (Paperback):... Challenges in Estuarine and Coastal Science - Estuarine and Coastal Sciences Association 50th Anniversary Volume (Paperback)
John Humphreys, Sally Little
R1,448 Discovery Miles 14 480 Ships in 10 - 15 working days

Estuarine and coastal waters are acknowledged centres for anthropogenic impacts. Superimposed on the complex natural interactions between land, rivers and sea are the myriad consequences of human activity - a spectrum ranging from locally polluting effluents to some of the severest consequences of global climate change. For practitioners, academics and students in the field of coastal science and policy, this timely book examines and exemplifies current and future challenges: from upper estuaries to open coasts and adjacent seas; from tropical to temperate latitudes; from Europe to Australia. This authoritative volume marks the 50th anniversary of the Estuarine and Coastal Sciences Association. Drawing on the expertise of more than 60 specialist contributors, individual chapters address coastal erosion and deposition; open shores to estuaries and deltas; marine plastics; coastal squeeze and habitat loss; tidal freshwaters - saline incursion and estuarine squeeze; restoration management using remote data collection; carbon storage; species distribution and non-natives; shorebirds; Modelling environmental change; physical processes such as sediments and modelling; sea level rise and estuarine tidal dynamics; estuaries as fish nurseries; policy versus reality in coastal conservation; developments in estuarine, coastal and marine management. In addition to providing an overview of current scientific understanding, the material gathered here offers a clear-eyed perspective on what needs to be done to protect these fragile - and vital - ecosystems.

Fishery Ecosystem Dynamics (Hardcover): Michael J Fogarty, Jeremy S. Collie Fishery Ecosystem Dynamics (Hardcover)
Michael J Fogarty, Jeremy S. Collie
R3,531 Discovery Miles 35 310 Ships in 10 - 15 working days

Fisheries supply a critically important ecosystem service by providing over three billion people with nearly 20% of their daily animal protein intake. Yet one third of the world's fish stocks are currently harvested at unsustainable levels. Calls for the adoption of more holistic approaches to management that incorporate broader ecosystem principles are now being translated into action worldwide to meet this challenge. The transition from concept to implementation is accompanied by the need to further establish and evaluate the analytical framework for Ecosystem-Based Fishery Management (EBFM). The objectives of this novel textbook are to provide an introduction to this topic for the next generation of scientists who will carry on this work, to illuminate the deep and often underappreciated connections between basic ecology and fishery science, and to explore the implications of these linkages in formulating management strategies for the 21st century. Fishery Ecosystem Dynamics will be of great use to graduate level students as well as academic researchers and professionals (both governmental and NGO) in the fields of fisheries ecology and management.

Cambridge International AS & A Level Marine Science Digital Teacher's Resource Access Card (Digital product license key,... Cambridge International AS & A Level Marine Science Digital Teacher's Resource Access Card (Digital product license key, 2nd Revised edition)
Claire Brown, Paul Roobottom
R1,795 R1,525 Discovery Miles 15 250 Save R270 (15%) Ships in 5 - 10 working days

Develop your students theoretical and practical marine science skills for first examination in 2022. This digital teacher's resource is the perfect companion to the coursebook and workbook, helping you bridge the gap between teaching theory and practice. It helps you support your learners, plan lessons and teach to the syllabus, with downloadable support notes for the practical activities and answers to all the questions in the workbook and coursebook, as well as sample data for the workbook. From teaching activity, assessment and homework ideas, to how to tackle common misconceptions and support with practical activities, this handy resource provides inspiration and time-saving support.

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