Abstract:
Plankton were surveyed to describe their mean distribution in Lake Mainit. Standard means of specimen collection were observed. Forty-eighttaxa of phytoplankton belonging to Chlorophyta, Bacillariophyta, Cyanophyta and Euglenophyta, and sixtaxa of zooplankton such Copepoda and Rotifera were identified. Highest concentration of phytoplankton in the Lake was on Januaryat 22,325.00 cells/L, while among zooplankton at 109.00 ind/L occurred between February to March. Generally, plankton counts decreased upon approaching warmer months starting February to April. Further relevant study is suggested to understand the dynamics of plankton as a function of complex environmental interactions in the Lake.