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Author: Daniel Pauly
Publisher: Washington : Island Press
ISBN:
Category : Nature
Languages : en
Pages : 212
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Book Description
Recent decades have been marked by the decline or collapse of one fishery after another around the world, from swordfish in the North Atlantic to orange roughy in the South Pacific. While the effects of a collapse on local economies and fishing-dependent communities have generated much discussion, little attention has been paid to its impacts on the overall health of the ocean's ecosystems. In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean presents the first empirical assessment of the status of ecosystems in the North Atlantic ocean. Drawing on a wide range of studies including original research conducted for this volume, the authors analyze 14 large marine ecosystems to provide an indisputable picture of an ocean whose ecology has been dramatically altered, resulting in a phenomenon described by the authors as "fishing down the food web." The book: provides a snapshot of the past health of the North Atlantic and compares it to its present status presents a rigorous scientific assessment based on the key criteria of fisheries catches, biomass, and trophic level considers the factors that have led to the current situation describes the policy options available for halting the decline offers recommendations for restoring the North Atlantic An original and powerful series of maps and charts illustrate where the effects of overfishing are the most pronounced and highlight the interactions among various factors contributing to the overall decline of the North Atlantic's ecosystems. This is the first in a series of assessments by the world's leading marine scientists, entitled "The State of the World's Oceans." In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean is a landmark study, the first of its kind to make a comprehensive, ecosystem-based assessment of the North Atlantic Ocean, and will be essential reading for policymakers at the state, national, and international level concerned with fisheries management, as well for scientists, researchers, and activists concerned with marine issues or fishing and the fisheries industry.
Author: Daniel Pauly
Publisher: Washington : Island Press
ISBN:
Category : Nature
Languages : en
Pages : 212
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Book Description
Recent decades have been marked by the decline or collapse of one fishery after another around the world, from swordfish in the North Atlantic to orange roughy in the South Pacific. While the effects of a collapse on local economies and fishing-dependent communities have generated much discussion, little attention has been paid to its impacts on the overall health of the ocean's ecosystems. In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean presents the first empirical assessment of the status of ecosystems in the North Atlantic ocean. Drawing on a wide range of studies including original research conducted for this volume, the authors analyze 14 large marine ecosystems to provide an indisputable picture of an ocean whose ecology has been dramatically altered, resulting in a phenomenon described by the authors as "fishing down the food web." The book: provides a snapshot of the past health of the North Atlantic and compares it to its present status presents a rigorous scientific assessment based on the key criteria of fisheries catches, biomass, and trophic level considers the factors that have led to the current situation describes the policy options available for halting the decline offers recommendations for restoring the North Atlantic An original and powerful series of maps and charts illustrate where the effects of overfishing are the most pronounced and highlight the interactions among various factors contributing to the overall decline of the North Atlantic's ecosystems. This is the first in a series of assessments by the world's leading marine scientists, entitled "The State of the World's Oceans." In a Perfect Ocean: The State of Fisheries and Ecosystems in the North Atlantic Ocean is a landmark study, the first of its kind to make a comprehensive, ecosystem-based assessment of the North Atlantic Ocean, and will be essential reading for policymakers at the state, national, and international level concerned with fisheries management, as well for scientists, researchers, and activists concerned with marine issues or fishing and the fisheries industry.
Author: Biliana Cicin-Sain
Publisher:
ISBN:
Category : Coastal zone management
Languages : en
Pages : 152
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Book Description
Author: Carl Wunsch
Publisher: Cambridge University Press
ISBN: 9780521480901
Category : Mathematics
Languages : en
Pages : 466
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Book Description
This book addresses the problem of inferring the state of the ocean circulation, from a mathematical perspective.
Author:
Publisher: DIANE Publishing
ISBN: 142896505X
Category :
Languages : en
Pages : 130
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 030916155X
Category : Science
Languages : en
Pages : 200
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Book Description
The ocean has absorbed a significant portion of all human-made carbon dioxide emissions. This benefits human society by moderating the rate of climate change, but also causes unprecedented changes to ocean chemistry. Carbon dioxide taken up by the ocean decreases the pH of the water and leads to a suite of chemical changes collectively known as ocean acidification. The long term consequences of ocean acidification are not known, but are expected to result in changes to many ecosystems and the services they provide to society. Ocean Acidification: A National Strategy to Meet the Challenges of a Changing Ocean reviews the current state of knowledge, explores gaps in understanding, and identifies several key findings. Like climate change, ocean acidification is a growing global problem that will intensify with continued CO2 emissions and has the potential to change marine ecosystems and affect benefits to society. The federal government has taken positive initial steps by developing a national ocean acidification program, but more information is needed to fully understand and address the threat that ocean acidification may pose to marine ecosystems and the services they provide. In addition, a global observation network of chemical and biological sensors is needed to monitor changes in ocean conditions attributable to acidification.
Author: Harry N. Scheiber
Publisher: BRILL
ISBN: 9004343148
Category : Law
Languages : en
Pages : 590
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Book Description
The UN Convention on the Law of the Sea (UNCLOS), signed in 1982 and going into force in 1994, was the product of intensive international debates from the 1950s onward. UNCLOS continues to be the subject of vital debates on new initiatives that seek to clarify or expand the scope of the ocean regime. In Ocean Law Debates: The 50-Year Legacy and Emerging Issues for the Years Ahead, distinguished authors analyze the content of these debates, providing both historical perspectives and keen analyses of present-day issues. Several chapters focus on the contributions to debates over half a century’s time by the Law of the Sea Institute, including the controversies involving maritime delimitation issues, creation of marine fisheries law, and responses to the manifold challenges posed by dramatic advances in science and technology. Complementing these historical perspectives, a section of five chapters offers critical discussion of today’s movement to create a regime to sustain biodiversity in the Area Beyond National Jurisdiction. Finally, the volume offers diverse perspectives on the implementation and judicial interpretation of UNCLOS, international whaling regulation, Arctic regional issues, seabed mining problems, the geopolitics of Marine Protected Area declarations, and the role of the IMO in responding to climate change.
Author: David Helvarg
Publisher: New World Library
ISBN: 1577317033
Category : Nature
Languages : en
Pages : 207
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Book Description
The oceans, and the challenges they face, are so vast that it’s easy to feel powerless to protect them. 50 Ways to Save the Ocean, written by veteran environmental journalist David Helvarg, focuses on practical, easily-implemented actions everyone can take to protect and conserve this vital resource. Well-researched, personal, and sometimes whimsical, the book addresses daily choices that affect the ocean's health: what fish should and should not be eaten; how and where to vacation; storm drains and driveway run-off; protecting local water tables; proper diving, surfing, and tide pool etiquette; and supporting local marine education. Helvarg also looks at what can be done to stir the waters of seemingly daunting issues such as toxic pollutant runoff; protecting wetlands and sanctuaries; keeping oil rigs off shore; saving reef environments; and replenishing fish reserves.
Author: Salvatore Aric-
Publisher: Cambridge University Press
ISBN: 1107100135
Category : Law
Languages : en
Pages : 325
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Book Description
This book describes emerging and unresolved sustainability issues related to the oceans and marine environment, for policy makers, students and academics.
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309084385
Category : Science
Languages : en
Pages : 278
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Book Description
Since the early 1970s, experts have recognized that petroleum pollutants were being discharged in marine waters worldwide, from oil spills, vessel operations, and land-based sources. Public attention to oil spills has forced improvements. Still, a considerable amount of oil is discharged yearly into sensitive coastal environments. Oil in the Sea provides the best available estimate of oil pollutant discharge into marine waters, including an evaluation of the methods for assessing petroleum load and a discussion about the concerns these loads represent. Featuring close-up looks at the Exxon Valdez spill and other notable events, the book identifies important research questions and makes recommendations for better analysis ofâ€"and more effective measures againstâ€"pollutant discharge. The book discusses: Inputâ€"where the discharges come from, including the role of two-stroke engines used on recreational craft. Behavior or fateâ€"how oil is affected by processes such as evaporation as it moves through the marine environment. Effectsâ€"what we know about the effects of petroleum hydrocarbons on marine organisms and ecosystems. Providing a needed update on a problem of international importance, this book will be of interest to energy policy makers, industry officials and managers, engineers and researchers, and advocates for the marine environment.
Author: David Helvarg
Publisher: New World Library
ISBN: 1608684415
Category : Nature
Languages : en
Pages : 370
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Book Description
From the first human settlements to the latest marine explorations, The Golden Shore tells the tale of the history, culture, and changing nature of California’s coasts and ocean. David Helvarg takes the reader on both a geographic and literary journey along the state’s 1,100-mile Pacific coastline, from the Oregon border to the San Diego–Tijuana international border fence and out into its whale-, seal-, and shark-rich offshore seamounts, rock isles, and kelp forests. Part history, part travelogue, part love letter, The Golden Shore captures the spirit of the California coast and its mythic place in American culture.
