Ashwani Wanganeo

Learn More
Two lakes in the lower Siwalik Himalayas, five in the Kashmir valley and two situated in the high mountains of the Kashmir Himalayas were investigated for their physico-chemical and biological features. The lakes, differing significantly in their morphology and in thermal behaviour, rank from the subtropical monomictic to the dimictic type. The lakes at(More)
Habrobracon hebetor (Say) is an ectoparasitoid and has been studied as a biocontrol agent of various lepidopteran pests such as cotton bollworm Helicoverpa armigera (Hübner). With regards to the negative effects of common pesticides used in cotton fields on the parasitoids, in this study the effects of different isolates of entomopathogenic fungi (Beauveria(More)
Phosphorus (P) release rates from bottom sediments are high (20.6 mg/m(2)/day) in Dal Lake (India), a polymictic hyper-eutrophic lake. These gross release rates occur over a period of 72 days during summer only. Likewise, a net internal load of 11.3 tons was obtained from mass balance estimates. Significant proportion i.e. approximately 80% of 287.3 tons/yr(More)
In order to assess the effect of dredging on macrozoobenthos community, study was carried out in the Hazratbal Basin of Dal Lake from August 2010 to January 2011. The results showed strongly significant differences (P<0.05) between control site and the site which was sampled after dredging operation. The significant differences were also found between(More)
Precipitation mediated aerial deposition of some biologically important nutrients across the upper basin of Bhoj wetland, having an open surface water area of around 36 km2, has been assessed during monsoon months of two consecutive years of the study period. Monsoon season of the first phase (July to August, 2006) of study documented relatively the maximum(More)
The aim of this study conducted during 2008-2009 was to explore the impact of water quality on Brachionus species in littoral zone of Bhoj wetland as they are particularly sensitive to changes in water quality. Since Brachionus species are usually considered to be useful indicators of water quality their community structure not only allows estimates of the(More)
Phytoplankton species composition and seasonal changes were investigated in the Bhoj wetland Bhopal. Taxonomic composition, diversity, and abundance of phytoplankton were studied at nine stations from March 2008 to February 2010, in relation to various physico-chemical factors. Total phytoplankton species composition in the Bhoj wetland was represented by(More)
Bhoj Wetland is tropical freshwater system in central India "Bhopal" serving the citizens as one of the major source of water since its inception. Understanding the process of phytoplankton variation can be particularly useful in water quality improvement and management decision. In this study, phytoplankton taxonomic composition, temporal and spatial(More)
  • 1