Rice Farmers in Vietnam Turn to Shrimp Farming Amid Climate Challenges

For years, Ta Thi Thanh Thuy toiled on a sliver of land sandwiched between the Mekong River and the South China Sea, a region widely known as Vietnam’s rice bowl, to grow the prized grain.

But Thuy, along with many of her neighbours, has over the past decade completed a production swap – to shrimp – a previously unlikely shift that was spurred by the effects of climate change.

As rising seawaters bring significantly increased salination levels in the Mekong Delta region, the trend toward cultivating shrimp ponds is expected to supercharge the country’s seafood industry.

The government has set an ambitious target to more than double shrimp exports from current levels to $10 billion by 2025 and Delta farmers have benefited from local authority training sessions and other measures, including some soft loans.

“Life was very hard for us until we began to farm shrimp,” Thuy, 52, said. “Many shrimp farmers around here have been able to build nice houses and open saving accounts at banks.”

The seawater increase in the delta region has been compounded by the construction of several hyodropower dams upstream, further reducing fresh water flow.

“We planted rice but we harvested no rice,” said fellow shrimp farmer Ta Thanh Long. “There was a time the rice could still grow when the water was still fresh. But then the water became more and more salty each year.”

At least one third of the rice farming area along Soc Trang province’s 72-kilometre coastline has been affected by salination over the past few years, said Duong Minh Hoang, former director of the province’s Agriculture Promotion Centre.

“We have urged local people to switch to crops that are suitable with salination,” Hoang said. “Climate change is impacting everyone here. We have to try to adapt to survive.”

Vietnam is the world’s third largest exporter of rice, but revenue generated from shrimp exports has exceeded earnings from rice since 2013 and is growing quickly.

The switch to shrimp from rice, however, comes with its own host of environmental problems.

Switzerland-based NGO, the International Union for Conservation of Nature (IUCN), estimates more than half of the country’s natural mangrove forests, which protect against coastal erosion and storm surges, have been cleared to make way for shrimp ponds.

Aquaculture experts have highlighted a lack of regulatory oversight of the explosion in small shrimp farms, with questions about everything from the raw material used in feed to the way they manage their effluent or waste.

There are particular concerns about the use of antibiotics to treat disease in shrimp stocks. Antibiotics can seep into effluent, which is usually dumped, untreated or inadequately treated, back into the surrounding waterways, raising the risk of chemical pollution in the immediate environment and detrimental knock-on effects down the food chain.

This content is also available in: Tiếng Việt

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This content is also available in: Tiếng Việt