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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(6): 2904-2917
DOI: https://doi.org/10.20546/ijcmas.2018.706.342


Study of Temporal Variations in Physico-Chemical Parameters of Vembanad Lake at Panangad-Kumbalam region, Kochi, Kerala, India
Jyotsna Rajeswari1*, G. Suresh2, P. Srikanth3 and N. N. Raman1
1Department of Aquatic Environment Management, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, Kerala, India
2Department of Aquaculture, College of Fishery Science, Muthukur, Nellore, Sri Venkateswara Veterinary University, Tirupati, Andhra Pradesh, India
3Department of Fisheries Engineering and Technology, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, Kerala, India
*Corresponding author
Abstract:

The present investigation has been carried out for determining the various physico-chemical and biological parameters prevailing in Vembanad Lake of Panangad region, Kochi. The water samples were collected fortnightly from the Panangad-Kumbalam region for a period of ten months (September, 2015 to June, 2016). Meteorologically the whole study period can be classified as South west monsoon (September, 2015), Post-monsoon (October -November, 2015), North east monsoon (December, 2015 to March 2016), Pre-monsoon (April May, 2016) and beginning of south west monsoon (June, 2016). The analysis showed that the mean maximum temperature was 30.75OC during post monsoon, the mean maximum pH was 7.99 during post monsoon, the mean maximum DO was 6.22mg/l during post monsoon, the mean maximum alkalinity was 144.5mg/l during south west monsoon, the mean maximum transparency was 73.37 during north east monsoon, the mean maximum nitrite was 1.48mmol/l during south west monsoon (2015), the mean maximum nitrate was 1mmol/l during south west monsoon (2016) and the mean maximum phosphate was 4.13mmol/l during south west monsoon (2016) were recorded. Among phytoplankton diatoms are most dominant species in this region. Among zooplankton copepods are dominantly seen in the study region. Among aquatic weeds, Eichornia crassipes was dominantly seen in all the seasons. Five species of shellfishes are collected during the study period which are belongs to the order Decapoda. 24 species of fin fishes are collected during the study period from study area. The fishes can be categorized into eight orders and 18 families.


Keywords: Vembanad Lake, Panangad-Kumbalam, Water quality parameters, physico-chemical characteristics
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How to cite this article:

Jyotsna Rajeswari K., G. Suresh, P. Srikanth and Raman N. N. 2018. Study of Temporal Variations in Physico-Chemical Parameters of Vembanad Lake at Panangad-Kumbalam region, Kochi, Kerala, India.Int.J.Curr.Microbiol.App.Sci. 7(6): 2904-2917. doi: https://doi.org/10.20546/ijcmas.2018.706.342