- Dona Paula, Goa, India.
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- iiosc2020[at]nio[dot]org
| Abstract Submission No. | ABS-2022-09-0159 |
| Title of Abstract | Variation in bacterial community composition in a tropical monsoon influenced estuary: interplay of riverine discharge and tides |
| Authors | Lidita Khandeparker*, Ranjith Eswaran, Laxman Gardade, Nishanth Kuchi, Kaushal Mapari, A C Anil |
| Organisation | CSIR-National Institute of Oceanography |
| Address | CSIR-National Institue of Oceanography Dona Paula, Goa, India Pincode: 403004 Mobile: 9890343323 E-mail: klidita@nio.org |
| Country | India |
| Presentation | Oral |
| Abstract | The influence of tides on bacterial populations in a monsoon influenced tropical estuary (Zuari, west coast of India) was assessed through fine resolution simultaneous sampling (1 to 3 h) during spring and neap tides from the mouth to the freshwater end of the estuary at four stations during pre-monsoon, monsoon and post-monsoon seasons. The total bacterial count (TBC) in the surface water was higher at the mouth of the estuary when compared to fresh water end during the pre-monsoon and reverse was the case in the monsoon season. It was also apparent that tide-mediated sediment re-suspension and allochthonous input significantly influenced the bacterial community structure. The changes caused by allochthonous input and decrease in salinity due to fresh water inflow during monsoon challenges the immune response in higher organisms and play an important role in the functioning of the estuarine ecosystem. |