The Worldwatch Report, “Oceans in Peril”

The Worldwatch Report, “Oceans in Peril”, explains the central and vital role of the ecosystem-based approach to the management of our oceans in order to ensure that fish stocks and other essential facets of our seas remain in good health. If we do not adopt the ecosystem-based approach, further decline in the health of our oceans is inevitable, with perilous consequences.
The Report is titled Oceans in Peril: Protecting Marine Biodiversitybiodiversity Biological diversity in an environment as indicated by numbers of different species of plants and animals. and the authors are Michelle Allsopp, Richard Page, Paul Johnston and David Santillo. The Report was published in September 2007, ISBN 978-1-878071-81-1, and can be purchased via the Worldwatch website. We quote here from the Summary text published on the Worldwatch website:

“Uniquely among the universe’s known planets, the Earth is a sphere dominated by watery oceans. They cover 70 percent of its surface and are home to a myriad of amazing and beautiful creatures. Life almost certainly originated in the oceans, yet the biological diversity of marine habitats is threatened by the activities of one largely land-based species: us. The activities through which humans threaten marine life include overfishing, use of destructive fishing methods, pollution, and commercial aquaculture. In addition, climate change and the related acidification of the oceans is already having an impact on some marine ecosystems. Essential to solving these problems will be more equitable and sustainable management of the oceans as well as stronger protection of marine ecosystems through a well-enforced network of marine reserves.

“Presently, 76 percent of the world’s fish stocks are fully exploited or overexploited, and many species have been severely depleted, largely due to our growing appetite for seafood. Current fisheries management regimes contribute to the widespread market-driven degradation of the oceans by failing to implement and enforce adequate protective measures. Many policymakers and scientists now agree that we must adopt a radical new approach to managing the seas — one that is precautionary in nature and has the protection of the whole marine ecosystem as its primary objective. This “ecosystem approachecosystem approach An ecosystem-based approach to management represents a new and more strategic way of thinking. It puts the emphasis on a management regime that maintains the health of ecosystems alongside appropriate human use of the marine environment, for the benefit of current and future generations. This requires setting clear environmental objectives both at the general and specific level, basing management of the marine environment on the principles of sustainable development, conservation of biodiversity, robust science, the precautionary principle and stakeholder involvement. Ref, DEFRA, Safeguarding Our Seas, section 1.17 (2002)” is vital if we are to ensure the health of our oceans for future generations.

“An ecosystem approach promotes both conservation and the sustainable use of marine resources in an equitable way. It is a holistic approach that considers environmental protection and marine management together, rather than as two separate and mutually exclusive goals. Paramount to the application of this approach is the establishment of networks of fully protected marine reserves — in essence, “national parks” of the sea. These provide protection of whole ecosystems and enable biodiversity to both recover and flourish. They also benefit fisheries by allowing for spillover of fish and larvae or eggs from the reserve into adjacent fishing grounds.

“Outside of the reserves, an ecosystem approach requires the sustainable management of fisheries and other resources. Demands on marine resources must be managed within the limits of what the ecosystem can provide indefinitely, rather than being allowed to expand as demographic and market forces dictate. An ecosystem approach requires protection at the level of the whole ecosystem. This is radically different from the current practice, where most fisheries management measures focus simply on single species and do not consider the role of these species in the wider ecosystem.

“An ecosystem approach is also precautionary in nature, meaning that a lack of knowledge should not excuse decision-makers from taking action, but rather lead them to err on the side of caution. The burden of proof must be placed on those who want to undertake activities, such as fishing or coastal development, to show that these activities will not harm the marine environment. In other words, current presumptions that favor freedom to fish and freedom of the seas will need to be replaced with the new concept of freedom for the seas.”

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