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Lake Mainit Secchi depth measurements ranged between 3.20 - 6.65 meters. Secchi disk visibility is a measure of the water clarity and it is related to the photic depth. A new Philippine record of 6.65 m Secchi depth for the most transparent lake was observed at the vicinity of Jabonga. Lake Lanao had a maximum Secchi depth reading of 6.0 m in 1932 (Frey, 1974) which made it the most transparent lake in the Philippines until January 2004.
It is prominent that Mainit municipality area close to rice fields has very low visibility including municipalities of Kitcharao and Alegria. Areas away from tributaries have higher visibility including Jabonga and areas close to Malimono range.
Source: Tumanda, MI Jr., EC Roa,JG Gorospe, MT Daitia,SM Dejarme, RD Gaid (2005). Limnological and Water Quality Assessment of Lake Mainit. Mindanao State University at Naawan. (Thanks to LMDA for sharing the report)
By: Zimmbodilion Mosende.
Aug 8, 2006
Categories: photos, references, lake, mainit, surigao, caraga, mindanao, philippines
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