GROWTH OF PERIPHYTON ON DIFFERENT SUBSTRATES IN LOW SALINE GROUNDWATER

K.S. VIJAY AMIRTHARAJ¹*, B. AHILAN², C.B.T. RAJAGOPALSAMY³, P. JAWAHAR^4
1Head, Mariculture Research Farm Facility, Department of Aquaculture, Fisheries College and Research Institute, Thoothukudi, 628 008, Tamil Nadu Dr J. Jayalalithaa Fisheries University, Nagapattinam, 611002, Tamil Nadu, India
²Dean, Dr M.G.R Fisheries College and Research Institute, Ponneri, 601 204, Tamil Nadu Dr J. Jayalalithaa Fisheries University, Nagapattinam, 611002, Tamil Nadu, India
³Professor and Head, Department of Aquaculture, Dr M.G.R Fisheries College and Research Institute, Ponneri, 601 204, Tamil Nadu Dr J. Jayalalithaa Fisheries University, Nagapattinam, 611002, Tamil Nadu, India
⁴Professor, Department of Fisheries Biology and Resource Management, Fisheries College and Research Institute, Thoothukudi, 628 008, Tamil Nadu Dr J. Jayalalithaa Fisheries University, Nagapattinam, 611002, Tamil Nadu, India
* Corresponding Author : ksvijay444@gmail.com

Received : 03-09-2019     Accepted : 26-09-2019     Published : 30-09-2019
Volume : 11     Issue : 18       Pages : 9091 - 9095
Int J Agr Sci 11.18 (2019):9091-9095

Keywords : Periphyton, Aquaculture production, Substrate, Water quality
Academic Editor : Dr A. Chandrasekhar Rao, Shubham Lamba
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Dr M.G.R. Fisheries College and Research Institute, Ponneri, 601 204, Tamil Nadu Dr.J.Jayalalithaa Fisheries University, Nagapattinam, 611002, Tamil Nadu
Author Contribution : All authors equally contributed

The present investigation was conducted to assess on the taxonomic community growth on five different substrates in low saline ground water with 5 gL-1 salinity. The study was conducted for a period of 60 days in 5 ton circular tanks. Split bamboo (4 cm width), Green shade net (10 cm), HDPE sheet (10 cm), LDPE sheet (10 cm) and PVC pipes (1 inch) were used as substrate. The taxonomic community recorded in this study was limited to 3 groups (Bacillariophyceae, Chlorophyceae and Euglenophyceae) comprising of 5 genera. The results on taxonomic community were comparatively less in low saline water to that of fresh water periphyton composition reported in other studies. Water quality parameters were observed to be optimal levels throughout the trial, Temperature, alkalinity, hardness, calcium and magnesium were recorded at minimum maximum values of 25±0.03 and 25±0.03°C, 160±9.9 and 176±9.8 mgl-1 as CaCO3, 370±2.8 and 385±2.6 mgl-1 as CaCO3, 112±13.8 and 155±14.1 mgl-1 and 285±11.5 and 321±12.1 mgl-1 respectively.

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