Contribution of substratum heterogeneity in the diversity and distribution of macrobenthic invertebrate fauna in Ban Ganga stream, Katra (J & K)

Abstract

The present paper deals with the study of substratum and macrobenthic invertebrate fauna inhabiting stream, Ban Ganga .The detailed study reveals that the diversity, abundance and distribution of macrobenthic organisms is affected by various sediment characteristics viz. texture, pH, conductivity, organic carbon and organic matter etc. The macrobenthic biodiversity of the stream is represented by three major phyla viz., Annelida, Arthropoda and Mollusca out of which Oligochaetes (Annelids) and Dipterans (Arthropoda) formed the major bulk of benthic forms at all the stations whereas Odonates (Arthropoda) and leeches (Arthropoda) contributed minima towards the total benthic population. Also, analysis of Pearson's coefficient of correlation showed the relationship between sediment characteristics (coarse sand, fine sand, pH, conductivity, organic matter and organic phosphorous) and different phyla.

The Benthic Macro-Invertebrate Fauna of Owalla Reservoir, Osun State, Southwest, Nigeria

“…In this study, for instance, a total of 5076 individuals were recorded from the reservoir belonging to 18 different species of benthic macroinvertebrates. These were made up of three phyla (Arthropoda, Annelida and Mollusca); Ahmad et al (2002) observed that the three main phyla (Arthropoda, Annelida and Mollusca) contribute greatly to freshwater macro-benthic community; likewise, Arti Sharma et al (2015) also observed a similar pattern of taxonomic composition from Ban Ganga stream, Katra, India. In comparison to the available information based on studies of inland water bodies in Nigeria, the benthic macroinvertebrate species recorded from the Owalla Reservoir can be considered as relatively poor in taxa composition but rich in the abundance of the total individuals.…”

Seasonal Distribution and Population Dynamics of Aquatic Insects in Ashti Lake ,Dist. Wardha (M.S.)

“…At Ashti lake, both insect species diversity and population density were found to be high as water is productive and nutrient rich (Bath 1996;Gyllstrom and Hansson, 2004;Chavan and Lonkar, 2012;Sharma et al, 2007;Paul and Nandi, 2003). In total 16 insect genera were encountered from January 2010 to December 2012, (Table 1).…”

Differential distribution of macroinvertebrate associated with water quality

“…Significant work done reveals the close link between the benthic invertebrate's population and temperature in rivers and streams (Hamilton et al, 2012). In some Indian lotic waters, a negative correlation has been observed between the abundance of benthic macro-invertebrates and temperature (Ishaq & Khan, 2013;Sarang & Sharma, 2009;Sharma et al, 2004Sharma et al, , 2015.…”