Phytoplankton population structure of Mighan salt lake (Arak, Markazi province)

Mighan Lake is located ۸ kilometers northeast of Arak city. Lake surface area is ۱۱۲ km۲. Dunaliella salina (Dunal) Teodoresco composing main phytoplankton population and food chain in the lake. Salinity depending on season and water input is between ۲۰-۱۲۰ g/l. This study evaluated the impact of salinity and physicochemical factors on the lake’s phytoplankton communities. Sampling was done monthly during March to December ۲۰۱۹. Species and phytoplankton density were determined by inverted microscopy. Twelve algal species were identified which D. salina consisted ۸۷.۳% of phytoplankton composition. Indeed, salinity as a major limiting factor reduced phytoplankton diversity in Mighan Lake.

کلیدواژه ها:

Hypersaline ، Salinity ، Algal composition ، Diversity ، Mighan lake