• Dr.J.G.Koliyar
• Ms. Akshata Devadiga

Thane Creek is an important estuary of Mumbai. Thane Creek is an inlet along the shoreline of the Arabian Sea that isolates the city of Mumbai from the Indian mainland. Estuaries are among the world’s most productive ecosystem. The Bhandup pumping station area which is a part of the Thane Creek was selected for the project. This paper discusses about the pollution in Thane Creek caused due to the Waste water treatment plant's discharge. The study was carried out using T.telescopium, which is a molluscan species, as a bioindicator. Three sites were identified and samples were collected every 45 days starting from the month of July and samples of water, sediment were collected and analyzed and its correlation with the change in the number of a molluscan species (Telescopium. telescopium) was studied. A total of four samples were collected from all the 3 sites for the project. The counting of T.telescopium was carried out by using the line transect method during each sampling. The physico-chemical parameters considered for study include pH, Temperature, DO, COD, BOD, Salinity, Hardness, Nitrates, Phosphates, Conductivity, Alkalinity, TDS for water sample and pH, Temperature, Organic matter, Phosphorous, Nitrogen, Moisture content, Chlorides, Conductivity for soil sample. After the analysis was conducted, all the data was compiled in a tabular form and the statistical analysis was carried out successfully using SPSS software. The results were then interpreted and thus, from the result it was concluded that water parameters like DO, BOD and Soil parameters like Nitrogen and Chlorides directly impacted the number of the T. telescopium species with the least number of the species in the 3rd site indicating that the more the pollution at a site, the less is the number of the molluscan species. The changes in these parameters due to pollution can lead to devastating effects on the natural ecosystems.

Creek, Telescopium. Telescopium, bioindicator, physico-chemical parameters, molluscan

"BIOINDICATOR OF POLLUTION IN THANE CREEK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.158-162, May-2019, Available :http://www.jetir.org/papers/JETIRCB06024.pdf

"BIOINDICATOR OF POLLUTION IN THANE CREEK", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp158-162, May-2019, Available at : http://www.jetir.org/papers/JETIRCB06024.pdf