2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
5/23/2019 | 3:15 PM - 3:30 PM | ASSESSING TROPHIC STATUS OF A KARST GLACIER LAKE-GAHAR, IRAN | 254 B
ASSESSING TROPHIC STATUS OF A KARST GLACIER LAKE-GAHAR, IRAN
Gahar lake is in the center of the protected area of Oshtorankooh (altitude 2360m), Lorestan province, Iran. This lake is a unique "Paternoster" alpine lake with two water body that are connected by a stream. The first section is a shallow pond (Little Gahar Lake) and the second portion (or main water body) is a deep lake (Great Gahar Lake). Since there is not any limnological research on Gahar lake, we assessed trophic status of the lakes during ice-free period between May 2010 and May 2011. We measured physical parameters, water temperature, dissolve oxygen, pH, Secchi depth (transparency) and nutrients including Total Nitrates, Nitrates, Nitrites, Ammonia, Total Phosphorus, Dissolved Phosphate and Silica. Because of differences between two water bodies in depth, we used two different trophy indices. According to Carlson's index or Trophic Status Index, the great Gahar lake belongs to status of Oligotrophic level whereas based on Trophic Level Index the small Gahar lake is eutrophic.
- Lentic
- Nitrogen
- Phosphorous
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Presenters/Authors
Monir Ghiyasabadi
(), Islamic Azad University, monir.ghiass84@yahoo.com;
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