The red tide, first detected on May 3 covering 780 square km, shrank to 106.3 square km on Monday, according to the North China Sea Branch of the State Oceanic Administration (SOA).
But the shrinkage doesn't mean the red tide is fading away as it can submerge when water temperature drops, said Li Qinliang, professor with the North China Sea Environment Monitoring Center of the SOA.
The red tide, identified as Noctiluca scientillan algae, grows by photosynthesis and reserves energy under the water when sunshine is poor, Li said.
Experts said the red tide might be caused by seawater pollution and over fishing.
"Red tide can break out when creatures living on Noctiluca scientillans are overfished," said Qu Xuanzhang, researcher of the North China Sea Environment Monitoring Center of the SOA.
The red tide will continue moving northwestward to the coastline of Shandong province, according to the SOA. Although nontoxic, Noctiluca scientillan algae may stick to the gills of fish and cause them to die.
If red tide breaks out in coastal waters, it will hurt fish and aquaculture industries as the algae takes a lot of oxygen at night and causes fish to suffocate, Li said.
The SOA has already alerted local fishermen to prepare to fight the red tide. And if that doesn't work, fish farmers may need to move their fish to unaffected waters, Li said.
(vasep.com.vn) As part of the Vietnam Fisheries International Exhibition (Vietfish 2026), the Vietnam Association of Seafood Exporters and Producers (VASEP), in collaboration with the Agency for Domestic Market Management and Development under the Ministry of Industry and Trade, will organize the Domestic Seafood Supply–Demand Matching Program on the morning of August 20, 2026, at the Saigon Exhibition and Convention Center (SECC), Ho Chi Minh City. The program aims to foster direct business connections between Vietnamese seafood producers and processors and domestic distributors, retailers, and foodservice channels.
(seafood.vasep.com.vn) The Cooking Show will be one of the most engaging experiential highlights of Vietfish 2026. Taking place over three days, from August 19–21, 2026, at Hall B1, SECC, Ho Chi Minh City, the event will offer visitors a vibrant culinary space where Vietnamese seafood is showcased through its flavors, stories, and real-life culinary applications.
(seafood.vasep.com.vn) Vietnam's pangasius exports reached USD 205 million in June 2026, up 5% compared with the same month in 2025. Cumulative export value for the first six months of the year totaled USD 1.1 billion, an increase of 12% year-on-year. Growth was primarily driven by strong demand from China and CPTPP markets, while exports to the United States and Brazil continued to decline.
(seafood.vasep.com.vn) In the first six months of 2026, Ha Tinh province continued to implement comprehensive solutions to combat IUU fishing; strictly manage the fishing fleet, control fishing vessels entering and leaving ports, operate vessel tracking devices, trace the origin of seafood, and severely punish violations.
(seafood.vasep.com.vn) Vietnam's tilapia exports reached USD 7 million in June 2026, down 32% compared with the same month in 2025. Nevertheless, thanks to strong growth in the first five months of the year, cumulative tilapia exports in the first half of 2026 totaled USD 69 million, up 67% year on year.
(seafood.vasep.com.vn) Sa Giang Import-Export Joint Stock Company, a member of the Vietnam Association of Seafood Exporters and Producers (VASEP), has been honored with the "Famous Brand - Competitive Vietnamese Brand 2026" certification at an award ceremony organized by the Vietnam Intellectual Property Association (VIPA).
(seafood.vasep.com.vn) China imported nearly $1.4 billion worth of Vietnamese seafood in the first half of the year, a 40% increase compared to the same period last year, surpassing the US to become the largest export market for the industry.
(seafood.vasep.com.vn) As part of Vietfish 2026, the International Seafood Hosted Buyer Program has been designed as a dedicated B2B matchmaking initiative for selected international buyers. The program provides opportunities to meet directly with Vietnamese seafood companies, gain market insights, and experience Vietnam's seafood supply chain firsthand.
(seafood.vasep.com.vn) A Story from Cà Mau’s Coast It’s 5 AM in Cà Mau. Minh, a third-generation fisherman, is ready to set sail. But unlike his father and grandfather, his boat no longer runs on an old diesel engine that burns fuel and clouds the sky with smoke. Instead, it’s powered by a hybrid engine that saves 40% fuel—funded by an ESG program from a major seafood exporter.
(seafood.vasep.com.vn) Vietnam's pangasius industry is shifting its focus from increasing production volume to enhancing value-added products in order to meet the increasingly stringent requirements of export markets. In An Giang Province—the country's leading hub for pangasius farming and processing—businesses and farmers are prioritizing product quality, traceability, food safety, and sustainable development rather than expanding output.
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