INTERNATIONAL JOURNAL OF LIFE SCIENCES

131-140

Authors: Kushwaha VB | Agrahari M

This paper aims to study the effect of domestic sewage on phytoplankton population in river Rapti at Gorakhpur, U.P. and India. An increase in free CO2, bicarbonate alkalinity, nitrate, phosphate and BOD while a decrease in pH, DO and carbonate alkalinity was observed at sewage mixing point. However, these parameters gradually changed at the station away from sewage mixing point (downstream) and were within the limits of Indian standards. During the study period total 29 species of phytoplanktons were observed belonging to 4 families: Bacillariophyceae (11), Chlorophyceae (10), Cyanophyceae (6) and Euglenophyceae (2). In present investigation it was observed that population of phytoplankton was very low at station R2 where sewage mixed into river.

147-151

Authors: Yeragi SS | Yeragi SG

The present investigation revealed that the stomach content of both juvenile (<130 mm SL) and adult (>130mm SL) Sillago sihama (Forsskal) in Mithbav (L.160 20’ N.L.170 25’)estuary of Sindhudurg District, Maharashtra from April 2011 to March 2012. The gut analysis was carried out using frequency of occurrence and point methods. Diatoms were found to be the most preferable food of plant origin in both the life stages like juvenile and adult in all the season, Diatoms, blue-green algae and dinoflagellactes constituted main food of plant origni. Diatoms were found to be the most preferable food during starvation period of monsoon due to unexpected water currents. During monsoon, the habit of food and feeding was distured for short time. They do not remain in main stream of water but move towards the bank, bay, as well as in lagoons of the estuary. During monsoon it occurred in more than 11.3% of food item by point method. The feeding intensity of juvenile was notice that on increasing along with increase in size group. The quality and quantity of food items were fluctuated seasonwise to season and juvenile to adult stages. Crustacean including shrimps, crabs, their larvae, copepods eggs, and larval forms comprised the maximum part of the food of animal origin. It was concluded that sillage sihama in the coastal waters of Mithbav is planktonivorous and feeding on a wide range of food of planktonic and benthic organisms.

157-161

Authors: Ghaware AU | Jadhao RG

This study was aimed to estimate current status of Physico-chemical characteristics and level of pollution indicator bacteria and their variation at whole stretch of dam. Some environmental parameters such as Temperature, pH, Turbidity, Dissolved oxygen, Sulphates and Nitrates were monitored. In addition, the microbial analyses involved total viable bacterial and fungal counts. The results of physicochemical parameters showed varied value; from conclusions revealed that large number of sewage drains in Morshi and agricultural discharge is mainly responsible for pollution in Nal-Damyanti Sagar Dam.

167-170

Authors: Bhoyar VV

The water quality and nutrients influence population of zooplanktons. The population observed in the distribution of zooplankton is due to abiotic factors (e.g. temperature, salinity DO and other dissolved ions), to biotic factors (e.g. nutrients). Many species of zooplanktons are limited by temperature, dissolved oxygen, salinity and other physico-chemical factors. Zooplanktons constitute an important link in food chain as (primary or secondary consumers) and serve as food for fishes directly or indirectly. Therefore any harm to these will be harmful to the fish populations. The occurrence of zooplankton depends upon its productivity, which is influenced by physico-chemical parameters and the level of nutrients in water. Hence the present study was carried out on kudla dam for a period of one year from Jun 2013 to May 2014. In the present study 19 species of Rotifers were found.

176-180

Authors: Jadhav VA | Laeequr Raheman

Now a day, we are having good stimulation and regulation due to small piece of evolutionarily developed nucleotides working dynamically called gene (eg.NF1). The malfunctioning of NF1is autosomal dominant condition, contributes a set distinct genetic disorder that that cause tumors to grow along various types of nerve. In addition, it can affect the development of non-nervous tissue such as bone and skin. The NF1 gene, encodes for protein called neurofibromine, belongs to family of protein that serve as negative regulators ras oncogene. The GRD region encoded by exons 20-27a, is the function ascribed region. We are aiming to identify and analyze with structure prediction.