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.
(seafood.vasep.com.vn) The “Moringa Noodles Salad” product by Sa Giang Import-Export Corporation was honored as one of the “Top 10 Winning Products” at the THAIFEX – Anuga taste Innovation Show 2026, held as part of THAIFEX – Anuga Asia 2026 in Bangkok.
(seafood.vasep.com.vn) After a fairly strong upward trend in 2025, Vietnam’s clam exports entered 2026 with a mixed picture: strong growth at the beginning of the year, followed by a slowdown from March onward. According to Vietnam Customs data, Vietnam’s clam export turnover in the first four months of 2026 reached more than USD 38 million, up 2% compared to the same period in 2025.
(seafood.vasep.com.vn) Vietnam’s pangasius industry is facing new opportunities to expand its development space as many localities and businesses begin promoting marine farming models aimed at diversifying farming areas and adapting to climate change. However, for pangasius to truly “go offshore” and develop into a large-scale industry segment, significant challenges related to technology, broodstock, and markets still need to be addressed.
(seafood.vasep.com.vn) Vietnam’s tilapia exports in April 2026 reached USD 11 million, up 92% compared to the same period in 2025. This strong growth indicates that Vietnamese tilapia products are continuing to penetrate and expand rapidly in international markets. Cumulative export turnover in the first four months of 2026 reached USD 49 million, up 151% year-on-year.
(seafood.vasep.com) At VietShrimp Asia 2026, disease management trends in shrimp farming are shifting strongly from treatment-based approaches toward proactive prevention through environmental and pond ecosystem control.
(vasep.com.vn) After a period of strong growth, with export turnover reaching USD 38 million in Q1/2026 — up 174% year-on-year — the sector’s rapid expansion clearly reflects growing market opportunities.
(vasep.com.vn) In the first quarter of 2026, Vietnam’s pangasius exports to the ASEAN bloc reached USD 44 million, up 7% compared to the same period in 2025. After falling to the lowest level of the quarter at USD 9 million in February — reflecting the seasonal slowdown in orders after the festive period — exports recovered strongly to USD 18 million in March, the highest monthly value of the quarter. This development shows that import demand for pangasius in ASEAN remains relatively stable despite short-term fluctuations.
(seafood.vasep.com.vn) On May 11, 2026, the US National Oceanic and Atmospheric Administration (NOAA) announced a positive comparability finding for Vietnam’s swimming crab fisheries, along with those of Indonesia and Sri Lanka, under the Marine Mammal Protection Act (MMPA). With this decision, seafood and seafood products harvested from Vietnam’s swimming crab fisheries will continue to be eligible for import into the US market.
(seafood.vasep.com.vn) After a slowdown in 2025, Vietnam’s tuna exports to Germany showed more positive signs in the first quarter of 2026. However, the recovery remains uncertain as consumer demand in Germany is still cautious, while market competition is increasingly driven by pricing and supply stability.
(seafood.vasep.com.vn) After a sharp decline in 2025, Vietnam’s tuna exports to Israel are showing positive signs of recovery in the early months of 2026. According to Vietnam Customs data, export turnover to this market grew steadily month by month in Q1/2026, reaching nearly USD 10 million, up 33% compared to the same period in 2025. However, compared to Q1/2024, this level remains significantly lower, indicating that the recovery is still in its early stage following last year’s strong adjustment.
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