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Studies on the mycoflora of Aswan High Dam Lake, Egypt: Vertical fluctuations
Author(s) -
Moharram A. M.,
ElHissy F. T.,
ElZayat S. A.
Publication year - 1990
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.3620300311
Subject(s) - population , aspergillus fumigatus , environmental science , surface water , aspergillus terreus , hydrology (agriculture) , biology , botany , geology , environmental engineering , demography , geotechnical engineering , sociology , food science
The fungal population of Aswan High Dam Lake showed marked vertical variations during the period of study which extended from July 1985 to December 1986. High fungal counts were observed at the surface water which were mainly due to the high counts of Aspergillus fumigatus and A. tertureus . Going deeper the fungal population decreased till 30 meters, then gradually increased to reach its maximum at the 70 meter depth (near the bottom of the lake). Such increase was basically due to the high population of Penicillium funiculosum . At each sampling time, the water temperature and the values of dissolved oxygen were always higher at the surface than near the bottom of the lake. The temperature ranged from 15° to 26 °C and the dissolved oxygen from 1.31 to 8.98 mg 1 −1 .