Lagoon · Cam Lam
Thuy Trieu Lagoon
Đầm Thủy Triều
Thuy Trieu Lagoon (Đầm Thủy Triều) is a lagoon that opens into Cam Ranh Bay, in Khanh Hoa province, Vietnam[1]. Vietnamese Wikipedia describes it as running about 16 km from the foot of Nui Cu Hin to My Ca, with a narrow width, a water surface of about 2,000 ha and an average depth of only 1 to 3 m[1]. Wikidata records its coordinates as about 12.075° N, 109.179° E[2].
In 2024 the lagoon supported 280 households farming mussels over 354.2 ha and 67 households running a total of 50 rafts holding 212 fish cages, mostly in Cam Hai Dong commune, with smaller numbers in Cam Thanh Bac commune and Cam Duc town[3]. By July 2024 all 280 mussel-farming households had dismantled their operations under a clearance order, and cage farmers faced compulsory removal if they did not do so voluntarily[3].
The lagoon's mangrove forests and seagrass beds had been reduced by uncontrolled aquaculture; a restoration project run by the Institute of Oceanography between July 2012 and July 2014, costing more than 674 million VND, of which 534 million VND came from the state budget, planted almost 3.5 ha of new mangrove, with a survival rate of 60 to 80 per cent, and protected 30 ha of coastal seagrass[4].
Geography
Thuy Trieu Lagoon opens into Cam Ranh Bay and runs for about 16 km from the foot of Nui Cu Hin to My Ca, with a narrow width[1]. Vietnamese Wikipedia gives its water surface area as about 2,000 ha and its average depth as only 1 to 3 m[1]. Wikidata records its coordinates as about 12.075° N, 109.179° E and classifies it as a lagoon[2], within the former Cam Lam district. The provincial newspaper Bao Khanh Hoa describes the lagoon as a transitional area between the mainland of Cam Lam district and Cam Ranh Bay[4].
Aquaculture and its 2024 clearance
In 2024 the lagoon supported 280 households farming mussels over a combined 354.2 ha, mostly in Cam Hai Dong commune, with smaller numbers in Cam Thanh Bac commune and Cam Duc town[3]. A further 67 households operated cage aquaculture, with a total of 50 rafts holding 212 fish cages[3]. Bao Khanh Hoa's own headline describes this farming as unauthorised (trai phep) within the lagoon[3]. The newspaper reported that by July 2024 all 280 mussel-farming households had dismantled their operations under a clearance order, and that cage farmers faced compulsory removal if they did not dismantle theirs voluntarily[3].
Mangrove and seagrass restoration
The lagoon's mangrove forests and seagrass beds had been reduced by uncontrolled aquaculture[4]. A restoration project run by the Institute of Oceanography between July 2012 and July 2014, costing more than 674 million VND, of which 534 million VND came from the state budget, planted almost 3.5 ha of new mangrove, with a survival rate of 60 to 80 per cent, and protected 30 ha of coastal seagrass[4]. A trial planting of 23 cóc đỏ seedlings (Lumnitzera littorea) achieved a 78 per cent survival rate[4].
Questions and answers
How big is Thuy Trieu Lagoon?
About 2,000 ha of water surface, running about 16 km with an average depth of just 1 to 3 m, according to Vietnamese Wikipedia[1].
Is aquaculture still practised in the lagoon?
The mussel farming recorded in 2024 was ordered cleared: by July of that year all 280 mussel-farming households in the lagoon had dismantled their operations[3].
Sources
Every figure in this article is cited to one of these pages, listed in order of first use, with the date it was read.
See also
- Cam Ranh BayBay
- Bai DaiBeach
- Cam RanhFormer city
- Institute of OceanographyInstitute
- Hon Gom PeninsulaPeninsula
- Mui DoiCape