The State of the Marine Environment PDF Download
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Author:
Publisher: UNEP/Earthprint
ISBN: 9789280727081
Category : Nature
Languages : en
Pages : 56
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Book Description
This report provides an overview of the current state of the coastal and marine environment in relation to the nine categories of threats outlined by the Global Programme of Action for the Protection of the Marine Environment from Land-based Activities (GPA). The report indicates that legal and institutional arrangements have been strengthened and now cover most regions of the world, but that despite these heightened efforts globally, coastal and marine ecosystems continue to deteriorate mainly because of pressures by human development. Publishing Agency: United Nations Environment Programme (UNEP).
Author:
Publisher: UNEP/Earthprint
ISBN: 9789280727081
Category : Nature
Languages : en
Pages : 56
Get Book
Book Description
This report provides an overview of the current state of the coastal and marine environment in relation to the nine categories of threats outlined by the Global Programme of Action for the Protection of the Marine Environment from Land-based Activities (GPA). The report indicates that legal and institutional arrangements have been strengthened and now cover most regions of the world, but that despite these heightened efforts globally, coastal and marine ecosystems continue to deteriorate mainly because of pressures by human development. Publishing Agency: United Nations Environment Programme (UNEP).
Author: Md. Nazrul Islam
Publisher: CRC Press
ISBN: 1351649973
Category : Law
Languages : en
Pages : 502
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Book Description
Ecosystem-Based Management (EBM) is one of the most holistic approaches to protecting marine and coastal ecosystems as it recognizes the need to protect entire marine ecosystems instead of individual species. After decades of pollution, habitat degradation and overfishing, now climate change and ocean acidification threaten the health of the ocean in unprecedented way. Environmental Management of Marine Ecosystems illustrates the current status, trends, and effects of climate, natural disturbances and anthropogenic impacts on marine ecosystems. It demonstrates how to integrate different management tools and models in an up-to-date, multidisciplinary approach to environmental management. This indispensable guide provides several case studies from around the world and creates a framework for identifying management tools and their applications in coral reefs, fisheries, migratory species, marine islands and associated ecosystems such as mangroves and sea grass beds. It discusses the physical and chemical compositions of marine ecosystems along with the threats and actions needed to protect them. The application of model framework to several contemporary management issues include the modelling of harmful algal bloom dynamics, understanding the dispersal of sea lice, and the possible impacts on intertidal communities of the provision of novel offshore habitat. The results of extensive research by an international team of contributors, the Environmental Management of Marine Ecosystems is designed to inform scientists, practitioners, academics, government and non-government policymakers on the particularities of marine ecosystems and assist them in understanding the EBM approaches in means of mitigation and adaptation of human activities that result in sustainability. These practices will help change the current methodologies used for resource assessment and the future regulations of marine resources.
Author: GESAMP.
Publisher:
ISBN: 9780852381847
Category :
Languages : en
Pages : 111
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Book Description
Author: Sherry Heileman
Publisher: UNEP
ISBN:
Category : Nature
Languages : en
Pages : 260
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Book Description
This expert report provides a concise global overview of the developments over the last decade within the area of focus of the Global Programme of Action for the Protection of the Marine Environment from Land-based Activities (GPA). The report identifies that countries have made considerable progress in developing and implementing appropriate policy responses at national, regional and international levels. Nevertheless, progress over the last decade needs to be sustained and strengthened in response to the growing pressures, with special attention to implementation, enforcement and environmental governance. Publishing Agency: United Nations Environment Programme (UNEP).
Author: James Harrison
Publisher: Oxford University Press
ISBN: 0198707320
Category : Law
Languages : en
Pages : 353
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Book Description
The protection of the marine environment is an important challenge for the international community. Harrison critically assesses the role of international law, highlighting key developments in treaties and legal rules, but also pointing to the need for greater coordination and stronger enforcement mechanisms
Author:
Publisher:
ISBN:
Category : Marine pollution
Languages : en
Pages : 11
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Book Description
Author: Michelle Allsopp
Publisher: Springer Science & Business Media
ISBN: 1402091168
Category : Science
Languages : en
Pages : 262
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Book Description
The world’s oceans cover 70% of the earth’s surface and are home to a myriad of amazing and beautiful creatures. However, the biodiversity of the oceans is incre- ingly coming under serious threat from many human activities including overfi- ing, use of destructive fishing methods, pollution and commercial aquaculture. In addition, climate change is already having an impact on some marine ecosystems. This book discusses some of the major threats facing marine ecosystems by cons- ering a range of topics, under chapters discussing biodiversity (Chapter 1), fisheries (Chapter 2), aquaculture (Chapter 3), pollution (Chapter 4) and the impacts of increasing greenhouse gas emissions (Chapter 5). It goes on to explore solutions to the problems by discussing equitable and sustainable management of the oceans (Chapter 6) and protecting marine ecosystems using marine reserves (Chapter 7). Presently, 76% of the oceans are fully or over-exploited with respect to fishing, and many species have been severely depleted. It is abundantly clear that, in general, current fisheries management regimes are to blame for much of the widespread degradation of the oceans. Many policy-makers and scientists now agree that we must adopt a radical new approach to managing the seas – one that is precautionary in nature and has protection of the whole marine ecosystem as its primary objective. This ‘ecosystem-based approach’ is vital if we are to ensure the health of our oceans for future generations.
Author: Philip Mladenov
Publisher: Oxford University Press, USA
ISBN: 019884171X
Category : Science
Languages : en
Pages : 225
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Book Description
The oceans are our planet's most distinctive and imposing natural habitat. They cover 71 percent of its surface; support a remarkably diverse and exquisitely adapted array of life forms, from microscopic viruses, bacteria, and plankton to the largest existing animals; and possess many of Earth's most significant, intriguing, and inaccessible ecosystems. In an era in which humans are significantly altering the global environment, the oceans are undergoing rapid and profound changes. The study of marine biology is thus taking on added importance and urgency as people struggle to understand and manage these changes to protect our marine ecosystems. Healthy oceans produce half of the oxygen we breathe; stabilize our climate; create ecosystems that protect our coasts from storms; provide us with abundant food; and host diverse organisms that provide us with natural products for medicine and biotechnology. In this Very Short Introduction, marine biologist Philip Mladenov provides an accessible and up-to-date overview of marine biology, offering a tour of marine life and marine processes that ranges from the unimaginably abundant microscopic organisms that drive the oceans' food web to the apex predators that we exploit for food; from polar ocean ecosystems to tropical coral reefs; and from the luxurious kelp beds of the coastal ocean to deep-ocean hydrothermal vents where life exists without the energy of the sun. Throughout the book he considers the human impacts on marine life including overfishing, plastic and nutrient pollution, the spread of exotic species, and ocean warming and acidification. He discusses the threats these pose to our welfare, and the actions required to put us on a path to a more sustainable relationship with our oceans so that they can be restored and protected for future generations. Mladenov concludes with a new chapter offering an inspiring vision for the future of our oceans in 2050 that can be realised if we are wise enough to accelerate actions already underway and be bold with implementing new approaches. The next decade will decide the state of the oceans that we leave behind for future generations. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.
Author: Markus Salomon
Publisher: Springer
ISBN: 3319601563
Category : Science
Languages : en
Pages : 1024
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Book Description
This handbook is the first of its kind to provide a clear, accessible, and comprehensive introduction to the most important scientific and management topics in marine environmental protection. Leading experts discuss the latest perspectives and best practices in the field with a particular focus on the functioning of marine ecosystems, natural processes, and anthropogenic pressures. The book familiarizes readers with the intricacies and challenges of managing coasts and oceans more sustainably, and guides them through the maze of concepts and strategies, laws and policies, and the various actors that define our ability to manage marine activities. Providing valuable thematic insights into marine management to inspire thoughtful application and further study, it is essential reading for marine environmental scientists, policy-makers, lawyers, practitioners and anyone interested in the field.
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.
