Mapping the Seafloor for Habitat Characterization PDF Download

Author: Brian Jeremy Todd
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 544

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Author: Peter Harris
Publisher: Elsevier
ISBN: 0123851408
Category : Science
Languages : en
Pages : 947

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Annotation This book provides a synthesis of seabed geomorphology and benthic habitats based on the most recent, up-to-date information. Case studies from around the world are presented.

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309083400
Category : Science
Languages : en
Pages : 137

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Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.

Author: James A. Goodman
Publisher: Springer Science & Business Media
ISBN: 9048192927
Category : Technology & Engineering
Languages : en
Pages : 446

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Remote sensing stands as the defining technology in our ability to monitor coral reefs, as well as their biophysical properties and associated processes, at regional to global scales. With overwhelming evidence that much of Earth’s reefs are in decline, our need for large-scale, repeatable assessments of reefs has never been so great. Fortunately, the last two decades have seen a rapid expansion in the ability for remote sensing to map and monitor the coral reef ecosystem, its overlying water column, and surrounding environment. Remote sensing is now a fundamental tool for the mapping, monitoring and management of coral reef ecosystems. Remote sensing offers repeatable, quantitative assessments of habitat and environmental characteristics over spatially extensive areas. As the multi-disciplinary field of coral reef remote sensing continues to mature, results demonstrate that the techniques and capabilities continue to improve. New developments allow reef assessments and mapping to be performed with higher accuracy, across greater spatial areas, and with greater temporal frequency. The increased level of information that remote sensing now makes available also allows more complex scientific questions to be addressed. As defined for this book, remote sensing includes the vast array of geospatial data collected from land, water, ship, airborne and satellite platforms. The book is organized by technology, including: visible and infrared sensing using photographic, multispectral and hyperspectral instruments; active sensing using light detection and ranging (LiDAR); acoustic sensing using ship, autonomous underwater vehicle (AUV) and in-water platforms; and thermal and radar instruments. Emphasis and Audience This book serves multiple roles. It offers an overview of the current state-of-the-art technologies for reef mapping, provides detailed technical information for coral reef remote sensing specialists, imparts insight on the scientific questions that can be tackled using this technology, and also includes a foundation for those new to reef remote sensing. The individual sections of the book include introductory overviews of four main types of remotely sensed data used to study coral reefs, followed by specific examples demonstrating practical applications of the different technologies being discussed. Guidelines for selecting the most appropriate sensor for particular applications are provided, including an overview of how to utilize remote sensing data as an effective tool in science and management. The text is richly illustrated with examples of each sensing technology applied to a range of scientific, monitoring and management questions in reefs around the world. As such, the book is broadly accessible to a general audience, as well as students, managers, remote sensing specialists and anyone else working with coral reef ecosystems.

Author: Peter Harris
Publisher: Elsevier
ISBN: 0128149612
Category : Science
Languages : en
Pages : 1078

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Seafloor Geomorphology as Benthic Habitat: GeoHab Atlas of Seafloor Geomorphic Features and Benthic Habitats, Second Edition, provides an updated synthesis of seabed geomorphology and benthic habitats. This new edition includes new case studies from all geographic areas and habitats that were not included in the previous edition, including the Arctic, Asia, Africa and South America. Using multibeam sonar, the benthic ecology of submarine features, such as fjords, sand banks, coral reefs, seamounts, canyons, mud volcanoes and spreading ridges is revealed in unprecedented detail. This timely release offers new understanding for researchers in Marine Biodiversity, environmental managers, ecologists, and more. - Explores the relationships between seabed geomorphology, oceanography and biology - Provides global case studies which directly focus on habitats, including both biological and physical data - Describes ways to detect change in the marine environment (change in the condition of benthic habitats), a critical aspect for judging the performance of policies and legislation

Author: Robert Kunzig
Publisher: W. W. Norton & Company
ISBN: 0393345351
Category : Nature
Languages : en
Pages : 364

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A vivid tour of the Earth's last frontier, a remote and mysterious realm that nonetheless lies close to the heart of even the most land-locked reader. The sea covers seven-tenths of the Earth, but we have mapped only a small percentage of it. The sea contains millions of species of animals and plants, but we have identified only a few thousand of them. The sea controls our planet's climate, but we do not really understand how. The sea is still the frontier, and yet it seems so familiar that we sometimes forget how little we know about it. Just as we are poised on the verge of exploiting the sea on an unprecedented scale—mining it, fertilizing it, fishing it out—this book reminds us of how much we have yet to learn. More than that, it chronicles the knowledge explosion that has transformed our view of the sea in just the past few decades, and made it a far more interesting and accessible place. From the Big Bang to that far-off future time, two billion years from now, when our planet will be a waterless rock; from the lush crowds of life at seafloor hot springs to the invisible, jewel-like plants that float at the sea surface; from the restless shifting of the tectonic plates to the majestic sweep of the ocean currents, Kunzig's clear and lyrical prose transports us to the ends of the Earth. Originally published in hardcover as The Restless Sea.

Author: Richard J. Chorley
Publisher: Routledge
ISBN: 1000007081
Category : Science
Languages : en
Pages : 396

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Originally published in 1972. This book covers from ‘linear’ statistical methods, regression and variance analysis to multivariate methods to wider spatial analytic techniques, in which a clear association is maintained between quantitative data and the spatial coordinates which locate them. The purpose of this volume is to highlight this coherent area of scholarship under the general headings of spatial point systems, networks, continuous distributions, partitioning and simulation. Seventeen authors from Britain and the United States have been brought together to produce a book whose attention is on the body of spatial techniques necessary to enable the building of dynamic spatial models of landforms which formed the keystone of much geomorphic work in future years.

Author: Pål Buhl-Mortensen
Publisher: Frontiers Media SA
ISBN: 2889713903
Category : Science
Languages : en
Pages : 197

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Author: Anastasios Eleftheriou
Publisher: John Wiley & Sons
ISBN: 0470995114
Category : Technology & Engineering
Languages : en
Pages : 443

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Ecosystems of the benthic environment are a sensitive index toecological change, and as such demand long-term and effectivemonitoring. Methods for the Study of Marine Benthos providescomprehensive information on the tools and techniques available tothose working in areas where the declining health of the sea,depletion of marine resources and the biodiversity of marine lifeare major concerns. In response to the need for increasingly detailed information onbottom-living communities, this fully revised new editionoffers: Contributions from a broad range of internationally recognisedexperts New information for those compiling environmental impactstatements, pollution assessments and working with eco-systemmanagement Two separate chapters on Imaging Techniques and DivingSystems A vital tool for all marine and environmental scientists,ecologists, fisheries workers and oceanographers, libraries in alluniversities and research establishments where these subjects arestudied and taught will find this book a valuable addition to theirshelves.

Author: Callum Roberts
Publisher: Penguin
ISBN: 1101583568
Category : Science
Languages : en
Pages : 524

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A Silent Spring for oceans, written by "the Rachel Carson of the fish world" (The New York Times) Who can forget the sense of wonder with which they discovered the creatures of the deep? In this vibrant hymn to the sea, Callum Roberts—one of the world’s foremost conservation biologists—leads readers on a fascinating tour of mankind’s relationship to the sea, from the earliest traces of water on earth to the oceans as we know them today. In the process, Roberts looks at how the taming of the oceans has shaped human civilization and affected marine life. We have always been fish eaters, from the dawn of civilization, but in the last twenty years we have transformed the oceans beyond recognition. Putting our exploitation of the seas into historical context, Roberts offers a devastating account of the impact of modern fishing techniques, pollution, and climate change, and reveals what it would take to steer the right course while there is still time. Like Four Fish and The Omnivore’s Dilemma, The Ocean of Life takes a long view to tell a story in which each one of us has a role to play.