Temporal and Spatial distribution of Rotifera in a Polluted Water body

Shazia Ansari and Santosh K. Singh, JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 491-507.[DOI: 10.24214/jecet.A.6.4.49107.]

Abstract

Study of a polluted waterbody was carried out to assess the temporal and spatial distribution of rotifer in Aligarh. Rotifers are the most important soft bodied invertebrates in the fresh water plankton and characteristically inhabitants of inland waters. The members of this group are known to exhibit worldwide occurrence from the Arctic and Antarctic regions to the tropics. About 95% of the known rotifer species, belonging to superclass Eurotatoria, inhabit freshwaters which is regarded as their original habitat, while only a small group of the superclass Seisona were recorded from saline waters of brackish and marine environs

Effect of probiotics on ice blue cichlid (Maylandia greshakei) Reproduction under captive conditions

P. Ambika and J. Ronald, JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 481-490., [DOI: 10.24214/jecet.A.6.4.48190.]

Abstract

The present investigation was carried out to find out the effect of probiotics on the reproduction of ice blue cichlid. The probiotic feed R1-fed fish exhibited the maximum average fecundity per female (20.23 ± 10.29), followed by R2 (19.9 ±9.46), R3 (18 ± 9.39) and R4 (17.81 ± 9.5) when compared to control group (R0) (15.23 ± 7.39). The fish fed with the probiotic feeds (experimental groups R1, R2, R3 and R4) recorded significantly higher (P<0.05) hatching rate, survival rate, weight and length of fry. Likewise, the GSI of fish fed the probiotic feeds R1, R2, R3 and R4 were also significantly higher (P<0.05) than fish fed the control feed.

Analysis of Groundwater for Trace Metal Contamination using ICP-OES

Satish Chandra Dixit and Anshul Gupta, JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 476-480,[DOI: 10.24214/jecet.A.6.4. 47680.]

Abstract

The present investigation has been undertaken to assess the trace metal contamination of the groundwater surrounding the municipal solid waste (MSW) landfill sites/ dumping sites in Kanpur Nagar, India. Sudullahpur groundwater site is polluted with Cr, Pb and Fe due to its very close proximity with the MSW dumping site. The values for Cr, Fe, Pb, Ni, Cd, Cu and Zn for the other six sampling sites are within the permissible limits prescribed by Bureau of Indian Standards: 2012 and WHO: 2011. The values also show that deep boring and distance of the sampling site from the MSW landfill sites also plays very important role in deciding the impact of MSW landfill site on the quality of the surrounding groundwater

Enhanced Rate of Fish Production by Inducing Probiotics in Wastewater Aquaculture Ponds In East Kolkata Wet Lands, West Bengal, India: A Brief Study

S. Nandi Dr S.K.Ghosh and Dr T.K. De ,JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 464-475.[DOI: 10.24214/jecet.A.6.4. 46475]

Abstract

West Bengal is dominated by Bengali community and consumes a major amount of both marine and freshwater fish production in India. Fish farming is an age-old practice here. One significant area of its capital Kolkata is the East Kolkata Wetland (EKW) where fish farming takes place in large scales utilising the wastewater generated from the megacity. This utilisation of wastewater provides a large scope of recycling for the nutritional elements in the ecosystem. This unique work focuses on the enhancement of fish production rate by inducing some probiotics in the fish farming ponds. For this purpose, majorly chemical parameters of water were measured before and after the induction of probiotics and a comparative study had been done. The Hydrological parameters include pH, Salinity, Productivity, BOD5 and dissolved nutrient parameters like Ammonia-N, Nitrate-N, Nitrite-N, Phosphate-P, Silicate-Si, etc. These similar parameters were again measured in a normal fish farming pond without inducing probiotics and comparative study had been concluded. The results showed higher values of nutrient parameters helpful for fish growth. It was also found that use of probiotic hadavery high influence on these parameters ranging from 130% to 210% due to enhanced nutrient regeneration through decomposition of wastewater. Biomass increase is about 51% more than normal conditions. The findings may be useful in enhancing the rate of waste recycle under EKW as well as boosting wealth generation for local population through bioremediation

Carbon Stock Sequestered by Trees in Sadhu Vaswani Garden, Ulhasnagar

Shital Gharge and Geetha S. Menon,JECET; September 2017- November 2017; Sec. A; Vol.6. No.4, 455-463,[DOI: 10.24214/jecet.A.6.4. 45563.]

Abstract

In the recent years CO2 is the major gas contributing to global climate change. Urban vegetation, in addition to the aesthetic value also plays a major role in reducing the level of atmospheric CO2 by storing carbon. An urban garden-Sadhu Vaswani Garden, Ulhasnagar was selected to study the total carbon stock sequestered by the trees in the garden. This garden occupies area of 2.5 acres (approximately 1 hectare plantation) with a tree density of 493 trees belonging to 42 genus and comprising of 22 families. The biomass of trees was estimated along with the above ground biomass (AGB), the belowground biomass (BGB), total biomass and organic carbon of the standing live trees by non-destructive method. The total biomass of the tree plantation in this area was 1275.4667 Kgs (1.2754 tons ha-1). Total carbon stock sequestered by the trees was 2.3912 tons ha-1. Samanea saman showed highest biomass (507.715 Kgs) and also sequestered maximum CO2 (930.33 Kgs) as compared to other trees in the study area. The rate at which the tree sequestered CO2 was directly dependent on the age of the tree though the potential of individual tree varied with the tree species. A 25 years or older tree of Polyalthia longifolia sequestered 375 times more CO2 than a 5 year old tree of its kind and also was higher than when compared to similar aged Eugenia jambolana (29 times). The urban trees are important to protect the developing world from the adverse effects of climate change and global warming.