ISSN:
1573-5117
Keywords:
high altitude lake
;
Himalayan lake
;
trophic status
;
glacier silt
;
Nepal
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The trophic status and water quality of Lake Tilitso (4920 m above sea level) in a high altitude region in central Nepal were surveyed in September, 1984. The lake is rather large with a maximum depth of 95 m and a surface area of 10.2 km2. The lake water was turbid due to glacier silt and the euphotic layer was only 5 m deep. The nutrient concentration was very low with total phosphorus concentration 1–6 µg l−1, and DTN concentration 0.10–0.22 mg l−1. The phytoplankton biomass and chlorophyll-a concentration were also low. Primary production was estimated to be about 12 mg C m−2 d−1. The concentrations of particulate matter and most cations and bacterial number were higher in the epilimnion than in the hypolimnion. The trophic status of this lake was estimated as ultraoligotrophic.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00007208
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