14 Jun 2016 Story Nature Action

Blue economy

The spreading tentacles of success in Madagascar’s octopus fisheries

Shutting down fishing grounds in order to catch more fish sounds oddly counterintuitive. But that is exactly what fisherfolk in the village of Vezo in southwest Madagascar did in 2004: they banned all forms of fishing in one part of their octopus hunting grounds.

When they reopened them seven months later, they found that the size of their catch increased dramatically. Witnessing the success of their neighbours, three other villages soon closed down their own fishing grounds even though catching octopus is the only way to earn money for many people in the region. More communities followed suit the next year.

Soon the concept, which involved closing roughly 20 per cent of each village’s fished area for two to seven months, had spread its tentacles far along the coast until there were more than 250 temporary closures along 450km of coastline.

By targeting a fast-growing species of octopus that doubles in weight every month, the short-term closures in Madagascar resulted in improved catches and better incomes.

“This is further backed up by eight years of data on octopus catches which demonstrates that the economic benefits from increased catches outweigh the costs of foregone catches during the closures,” states a newly launched report from the United Nations Environment Programme.

The report, entitled Blue Economy - Sharing Success Stories to Inspire Change showcases various efforts that seek to reverse the overexploitation and degradation of the world’s oceans without harming people who rely on these vast ecosystems for a living.

In Madagascar, the short-term closures of the octopus fishing grounds inspired ven greater conservation efforts. With help from local NGOs, communities established marine protected areas that outlawed destructive and industrial forms of fishing. Roughly 60,000 people are now involved in these locally managed conservation zones. Their success has inspired the government to establish a nationwide closure of the country’s octopus fishery every year.

The UNEP report says that efforts like those of in Madagascar will help countries shift to greener, more inclusive economies. A green economy (or a blue economy, where the ocean lies at its heart) is low carbon, efficient and clean. It is also an economy that is based on sharing, circularity, collaboration, solidarity, resilience, opportunity, and interdependence.  Its growth is driven by investments that reduce carbon emissions and pollution, enhance energy efficiency, harness the power of natural capital – like the oceans – and halt the loss of biodiversity and the benefits that ecosystems provide.

The UNEP report also examines a project in The Gambia that supports female oyster harvesters. Founded in 2007, the TRY Oyster Women’s Association seeks to combat coastal degradation and unemployment by educating the women about how to harvest oysters sustainably and about the importance of mangroves.

Since its creation in 2007, TRY has grown from a small gathering of 40 oyster harvesters based in the Tanbi Wetlands National Park to a well-organized group with more than 500 members in 15 communities. By 2014, the association had instituted an eight-month closed season, imposed a minimum length for cockles and oysters and protected the roots of mangroves by banning the use of damaging equipment.

As a result of TRY’s work, the price of oysters more than doubled due to their larger size and the improved hygiene, handling and marketing of the molluscs; more than 370 women benefited from financial literacy training and individual loans of $30-180; more than 33.5 hectares of mangroves were planted by TRY members to act as vital nurseries for fish and oysters; and TRY became the first women’s association in Sub-Saharan Africa to be granted exclusive rights to a fishery by a national government.

“Through rights-based co-management, TRY and its members are now sustainably managing the country’s shellfish resources and associated ecosystems at very little cost to the government, while also improving their own livelihoods,” the UNEP report says.

Ultimately, the lessons learned from female oyster catchers in The Gambia and octopus fisherfolk in Madagascar can help the world harness the power of the oceans in a way that helps the planet shift to a green – or blue - economy.

Related Sustainable Development Goals