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A study was conducted to observe the breeding performance with maturing stages and nursery practices of the threatened indigenous fish species Labeo gonius, Labeo bata and Cirrhinus reba at Arabpur Fish Farm (Longitude: 89 12 15 East; Latitude: 23 10 30 North), Jessore, Bangladesh during 1998 to 2002. Trial doses of PG used for induced breeding of Labeo gonius, Labeo bata and Cirrhinus reba were 0.5 to 5.0; 1.0 and 2.0 to 4.0mgPG in the first dose, and 4.0 to 8.0; 1.0 to 8.0 and 00 to 7.0mg in second dose for female, respectively. The male fishes were administered only a single dose of 2.0;...

Global horizontal radiation and Weibull probability density function have been considered to calculate solar and wind energy respectively for 75wp PV panel and Air-X wind turbine. In the study area 21% households are electrified. Their daily average demand is 250-300 watt of which 96% is used for lighting and fanning purpose. One combined system can replace national grid by meeting three-familys demand, and the benefit-cost (B/C) ratio becomes 0.738. 79% households those were not electrified mainly use kerosene burning lamp for lighting. It releases a lot of CO2, CO, SO2 gasses into the...

Total Economic Value (TEV) is a concept which consists of direct and indirect use value as well as non-use values and thus incorporates all sorts of benefits from any environmental assets. This study is aimed to assess the all market and non-market values of floral diversity to provide a picture for the policy makers that how much value the society should achieve for the loss of floral diversity from proposed open cast coal mining activities in Dinajpur, Bangladesh. To assess the floral diversity of the study area list-count quadrant method was applied. Then economic theory was set under an...

The study was being a coastal village named Shuktogram of Narail district is subjected to multiple vulnerabilities with a diverse livelihood groups. The major changes in livelihood pattern of the study area brought by several Environmental Vulnerabilities (EVs) which affecting Household Livelihood Security (HLS). About thirteen occupational groups were found in the study area among which farmer (25%), agro-labor (20%) and fisher (13%) are the three largest livelihood groups. From this study it is found that all the EVs affect HLS in different magnitudes and which in turn alter the life style...