Some aquatic hyphomycetes from Sri Lanka

©Sri Lanka Association for Fisheries and Aquatic Resources

A 3×2 factorial experiment was conducted to evaluate the effects of dietary vitamin C, E and Zinc supplementation on growth, survival and reproduction of Oreochromis niloticus in hapa based system installed in earthern ponds for 5 months. The triplicate groups consisting 30 fish were fed three levels of vitamin C (0, 50 and 1250 mg kg diet), two levels of vitamin E (0, 600 mg kg diet). An addit...

Sri Lanka

Sri Lanka is a country with an approximate area of 66 thousand square kilometers (UNO, 2008). The population is 20,409,946 and the sex ratio (men per hundred women) is 98 (UNO, 2009). The proportion of the population under the age of 18 years is 28% and the proportion above age 60 is 8% (UNO, 2009). The literacy rate is 97% for men and 99% for women (UN Statistics, 2008). The life expectancy at...

Antifungal Activity of Some Medicinal Plants of Sri Lanka

Thirty six medicinal plants (63 extracts) have been screened for antifungal activity against Cladosporium cladosporioides. Extracts of the following plants have displayed significant antifungal activity: Butea monosperma, Costus speclosus, Curcuma zedoaria, Eupatorium riparium, Pleiospennium alatum. Theobroma cacao i and Z~ngrber zerumbet. A preformed antifungal constituent of C. speciosus has ...

Temperature and sporulation of aquatic hyphomycetes.

Temperature appears to be an important factor affecting the occurrence and distribution of aquatic hyphomycetes, the dominant leaf litter-decomposing fungi in streams. We compared conidium production by eight species of aquatic hyphomycetes grown on yellow poplar leaves in stream-simulating microcosms at three temperatures (15, 20, and 25 degrees C). The greatest conidium production occurred at...

Women in Sri Lanka