EDFish

Coral Reef Thresholds for Ecosystem Management

(c) Jim Patterson Photography, https://jimpattersonphotography.com/

(c) Jim Patterson Photography, https://jimpattersonphotography.com/

By: Rod Fujita & Kendra Karr

Fisheries management is principally focused on managing fishing pressure, with the goal of keeping individual fish stocks healthy enough to produce good yields.  But fisheries also affect the basic processes that keep ocean ecosystems healthy.  This is why it is important to understand how many fish need to be in the system to maintain the many important services that an ocean ecosystem can produce — including the maintenance of biodiversity, tourism value, and fisheries — and to manage fisheries so that fish populations remain at about that level.

The evidence that fish are important regulators of ecosystem processes is particularly strong in coral reefs.  The abundance and variety of fish is one of the most striking aspects of a healthy coral reef.  Some species transport energy and nutrients between seagrass meadows and the reefs.  Grazing fish species on a healthy coral reef keep seaweeds that would otherwise over-grow the reef in check.   Predators regulate populations of prey species, responding to natural variability by adjusting their feeding rates and numbers.  On a healthy reef, many different species occupy each of these niches, and each does their job in a slightly different way.  This enables the reef to resist threats and other changes (like hurricanes) and to recover from very storms or human impacts, within limits of course. Read More »

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5 Reasons for Hope on World Fisheries Day

bundle of fish

photo credit: tarotastic via photopin cc

Today is World Fisheries Day— a healthy reminder of how important fisheries are, regardless of where we live.

Wild fisheries must be managed and harvested sustainably in order to successfully rebuild global fish stocks and reliably feed the billions of people around the world who rely on them.

Innovative solutions are needed to establish sustainable fishing practices as the norm and to give a boost to coastal communities that rely on healthy fish stocks.

But today, global fisheries are tremendous pressure—to feed the world’s growing population and from the effects of climate change and ocean acidification.  There is, however, cause for optimism.  Here are 5 reasons why: Read More »

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Setting aside space provides room for innovation

By Sarah Poon

Territorial Use Rights for Fishing, or TURFs, have been in place for centuries in fishing communities around the world.  In a TURF, fishery participants have a secure, exclusive privilege to fish in a defined area.  Many fishery policy experts view TURFs and catch share programs as separate options for managing fisheries. TURFs are a type of catch share, since the area-based privileges assigned under a TURF provide the same rewards for stewardship as quota-based privileges.

In recent decades fishery managers have channeled the historical successes of this approach by formally recognizing customary TURFs, applying them to more fisheries and experimenting  with modern adaptations.

Community-based territorial rights that have existed for centuries are now formally recognized by national law in Fiji, Vanuatu, Papua New Guinea, Samoa, the Solomon Islands and Palau.  Empowered by national law promoting traditional community-based management, the Safata District of Samoa implemented a district-wide TURF in 2000.  Bylaws developed by the community manage members’ fishing efforts and limit outsiders’ access.  Safata’s leaders have further improved biological performance by establishing a network of no-take reserves.  With a formalized role in management, the district has received strong community support, high regulatory compliance and increased abundance for important species.

TURF systems have been used in different types of fisheries, but they are particularly well-suited for managing near shore fisheries where there is a clear spatial range of fishing activity. While these systems are ideal for less mobile species that don’t move beyond TURF boundaries, they can also be designed for more mobile species. Read More »

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Cooperation beats competition

By Sarah Poon

Whether in school, at work, or at play, we’ve all experienced the value of working collectively to achieve a common goal.  Many fisheries around the world are successfully managed by providing a structure for collaboration between fishermen via Cooperative catch shares.

In a Cooperative catch share, one or more groups of fishing participants, or “Cooperatives”, are allocated a secure portion of the catch or a dedicated fishing area.  In exchange, they are responsible for accepting certain management responsibilities.  Many fishing communities around the world have traditionally managed their coastal resources cooperatively, leveraging their local knowledge and relationships to achieve common goals.  Recognizing the success of this approach, many fisheries are building upon this traditional practice, while also adapting to the realities of today’s increasingly global fishery markets.

There are hundreds of Cooperatives around the world.  They have formed in different ways and have various functions and capacities.  But when it comes to their ability to manage fisheries, they share a common (perhaps obvious) theme: Cooperatives work best when people cooperate.  Cooperatives have demonstrated that fishermen working together (often hand-in-hand with fishery managers) can improve fishery science, tailor management to local conditions, increase profits and respond to complex management challenges such as discarding and habitat impacts. Read More »

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Maximizing Limited Data to Improve Fishery Management

By Ashley Apel

According to a recent study published in Science, nearly 80% of the world’s catch comes from “data-limited” fisheries.  Not surprisingly, research shows that many of these fisheries are facing collapse, jeopardizing the food security of hundreds of millions of people in developing countries who depend on seafood for a majority of their dietary protein.

Historically, fisheries with little data had few science-based management options. But new methods are being continuously developed and used in the field that deliver science-based results, even in the absence of long-term, historical catch data. Since fishery stock assessments can be extremely complex, EDF recently developed a user-friendly, six-step framework as part of an overall guide to Science-Based Management of Data-Limited Fisheries.

The framework outlines a systematic approach that fishery managers can use to conduct quick and relatively inexpensive assessments.  The methods allow stakeholders in data-limited fisheries to estimate risks to marine ecosystems, determine vulnerability of a stock to fishing pressure, calculate the level of overfishing, assess the sustainability of the fishery, and establish sustainable fishing targets and other management reference points.

Download the guide on Science-Based Management of Data-Limited Fisheries or download the entire toolkit for fisheries.  Feel free to send questions or comments to catchsharequestions@edf.org.

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“50 in 10” Collaborative Aims to Bring 50% of the World’s Catch Under Sustainable Management in 10 Years

On World Oceans Day we celebrated an ecosystem which is inextricably linked to our lives. Oceans cover about 70% of the planet and contain 99% of Earth’s living space. They are home to nearly half of all known species, generate most of the oxygen we breathe, help regulate the climate, and provide food for billions of people around the world. In fact, 2 billion people in the developing world depend on seafood for at least 50% of their nutritional needs.

There are myriad challenges facing the world’s oceans, including pollution, climate change, acidification and overfishing (often as a result of mis-management of fisheries), yet new policies and management tactics offer hope for improving the economic and environmental outlook of our oceans.

EDF is a founding partner of the World Bank’s Global Partnership for Oceans—an “alliance of more than 100 governments, international organizations, civil society groups, and private sector interests committed to addressing the threats to the health, productivity and resilience of the world’s oceans.” A separate but complimentary initiative is the “50 in 10 Initiative” which seeks to ensure that 50% of the world’s fish are caught under sustainable management by 2023. Consensus is emerging among global leaders that solutions to the problems we are facing exist—and can be scaled up to empower fisheries to deploy these proven solutions. Read More »

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