Scanning Electron Microscopic Study of Aplectana Duttaphryni Sou, Sow and Nandi, 2014 from A New Frog Host, Fejervarya limnocharis in West Bengal

Aplectana duttaphryni Sou, Sow and Nandi, 2014 was first reported in Kulti, Asansol coal-mine region, West Bengal from a toad, Duttaphrynus melanostictus (Schneider, 1899) only using light microscope. Present article describes, A. duttaphryni in details collected from the rectum of an anuran frog, Fejervarya limnocharis (Gravenhorst, 1829) in Birbhum district, West Bengal. Aplectana duttaphryni is reported for the first time from Birbhum district, West Bengal. The parasites identified by its lanceolate shaped gubernaculum, presence of 1 pair of similar and equal spicules and also with the presence of 3 pairs of preanal papillae, 2 pairs of adanal papillae, 13 pairs of postanal papillae and single papillae on the upper lip of anus. In the present study, Birbhum district recorded as new geographical locality and F. limnocharis recorded as a new host.

Modeling Groundwater Potential Zones for Sustainable Water Resource Management in Khyrasol Block, Birbhum District West Bengal India Using Remote Sensing and GIS Techniques

Remote sensing and Geographical Information System (GIS) have played an important role in exploration and management of groundwater resources. In this study, we present modeling of groundwater potential zone in Khoyrasol block in Birbhum district, West Bengal by using remote sensing and GIS techniques. The objective of the study is to explore groundwater as well as surface water availability in different geomorphic units. Different thematic maps of geology, hydro-geomorphology, lineament, slope, land use/land cover (LULC), depth to water level and soil maps are prepared and groundwater potential zones are obtained by overlaying all thematic maps in terms of Weightage Index Overlay (WIO) method. All the thematic map classes have been assigned weightage according to their role in groundwater occurrence. Finally, groundwater potential zones are classified into four categories viz., excellent, good to medium, medium to poor and poor. The outcome of the present research work will help the local farmers, decision-maker, researchers and planners for exploration, monitoring, and management of groundwater resources for this study area.

Sustainability Assessment of the Groundwater Quality in the Khoyrasole Block, Birbhum District, West Bengal to Achieve Rural Water Security

To achieve the goal of water security, particularly in rapidly expanding areas, identification of safe and sustainable water resources is an absolute necessity. The present study conducted an exploratory investigation of the hydrogeochemical characteristics of groundwater and thereby assessed the suitability of groundwater as an alternative and reliable resource for public use in the Khoyrasole block, Birbhum district, India. A total of 15 groundwater samples, collected from bore wells spread well over the Khoyrasole block have been considered. After the hydrogeochemical analysis, the study evaluated the present state of the groundwater quality and determined the spatial distribution of groundwater quality parameters such as pH, Total Dissolved solids (TDS), Hardness, Calcium, Magnesium, Sodium, Potassium, Iron, Chloride, Carbonate, Bicarbonate, Sulphate, Nitrate and Fluoride. High to very high levels of iron and fluoride have been observed to be present in 67% and53% of the samples respectively.Based upon the calculated parameters like SAR, MAR, PI and Chloro Alkaline Indices, groundwater of Khoyrasole block is majorly suitable for the purpose of agriculture and irrigation.Plotting of ionic scatter plots and geochemical facies also indicate the water samples to be of ‘fresh water’ category, with no dominant cation or anion playing a selectively dominant role in influencing the groundwater chemistry in the region.