Tadlac Lake
Tadlac Lake, also colloquially known as Alligator Lake, is a freshwater volcanic crater lake located in Barangay Tadlac, in the municipality of Los Baños, Laguna. The lake-filled maar is located along the southern shore of Laguna de Bay, the largest lake in the country, with Alligator Lake protruding out of the shore of the larger lake. If not for its slightly-elevated crater rim, Alligator Lake would be wholly engulfed by Laguna de Bay.The crater lake is one of the maars of the Laguna Volcanic Field. It is listed as one of the inactive volcanos in the Philippines by the Philippine Institute of Volcanology and Seismology (PHIVOLCS).Tadlac lake is also notable for its history of annual Lake overturns, locally called langal. This phenomenon, rare elsewhere but usually occurring in Tadlac lake during the cold months of December to February, is the result of trapped carbon dioxide (CO2) erupting from the deep layers of the lake towards the surface, leading to fish kills due to low levels of dissolved oxygen.: 6 This phenomenon was greatly heightened by the introduction of aquaculture to the lake in the mid-1980s, eventually leading to a massive and costly fishkill in 1999, which in turn led to the cessation of aquaculture activities on the lake.: 6 Prior to the introduction of aquaculture, Alligator Lake was considered as an oligotrophic lake, having low nutrient content and low algal production, resulting in very clear water with high drinking-water quality.
Excerpt from the Wikipedia article Tadlac Lake (License: CC BY-SA 3.0, Authors, Images).Tadlac Lake
Tadlac Barangay Road, Calamba Masili
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Geographical coordinates (GPS)
Latitude | Longitude |
---|---|
N 14.1825 ° | E 121.20638888889 ° |
Address
Laresio Lakeside
Tadlac Barangay Road
4027 Calamba, Masili
Laguna, Philippines
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