Correlation study of physicochemical properties with biota of any fresh water body depicts the status of any ecosystem. Correlation of physicochemical parameters with benthic organisms especially macrozoobenthos of Kunghada Bandh Lake was organized to know the status of this fresh water ecosystem. This type of study is very useful to calculate the quality of water and restoration of such type of fragile ecosystem time to time. Samples were collected from five different sampling stations for two years i.e. from February 2012 to January 2013 and February 2013 to January 2014. Macrozoobenthos were collected from all five stations by using 'Ekman's dredge' and 'Van-Vin grab'. Annelids observed more in monsoon and winter than summer. Total 09 species of arthropods were recorded. Minimum average of Arthropods was recorded in summer and maximum average of Arthropods in monsoon. The same trend was followed by molluscan species. The increased concentrations of most of the chemical parameters in summer affects on the population of most of the faunal component in decreased manner.

Phytoplankton is a heterogeneous group of micro-organism and plays a major role in the food chain of aquatic ecosystems by biosynthesis of organic matter and thus they act as primary producers of food. The phytoplankton of many Indian rivers consists of diverse assemblages of major taxonomic groups. Many of these forms have different physiological and environmental requirements. During the investigation period of two years phytoplankton were collected randomly from three different sites i.e. S1, S2 and S3 of river Wainganga for qualitative and quantitative analysis. During the course of study total 31 species of phytoplankton were recorded belonging to five different classes. Seasonal analysis of plankton from this lotic water body showing wide diversity of phytoplankton. Chlorophyceae or green algae comprise an important phytoplanktonic group both in terms of abundance (15 species) and frequently occurrence and Bacillariophyceae (Diatoms) was represented by seven species. Myxophyceae or blue-green comprises of six species and Euglenophyceae were represented by two species i.e. Euglena sp. and Phacus sp. while Dinophyceae was represented by only one species of genus Ceratium.

The  zooplankton occupy  a central  position   between  the  autotrophs  and  heterotrophs  and  form  an important link  in  the  food  chain  of a freshwater ecosystem.  The  occurrence and  abundance of zo0plankton  is  always  influenced  by physico-chemical  factors  and the  level  of nutrients  present  in the water body.  In this  context  a perennial  freshwater  reservoir  Wadgaon  dam is studied  with respect to zooplankton population to assess  the  types  of zooplankton present.  Qualitative  studies on  the zooplankton in the  Wadgaon  dam  reservoir situated  in  the  Nagpur district  were  undertaken  in monsoon  months   to assess  the extent  of forms  present. The  reservoir  water  is uncontaminated  and clean  with no  influence  of man  made  activities   in the  vicinity.  The  zooplankton population   of the reservoir  water  is found to be represented  by fie different groups  viz. Protozoa, Rotifera, Cladocera, Copepoda  and  Ostracoda  represented   by about  21  different forms.  The  present  study  indicate the uncontaminated  nature   of reservoir water  due  to  absence of pollution  indicator  species  in  the reservoir water.

No abstract

No abstract