ENVIS Centre, Ministry of Environment & Forest, Govt. of India

Printed Date: Saturday, January 18, 2020

Vellar estuary

 

Name of the River
Vellar
Place
Parangipettai
District
Cuddalore
State
Tamil Nadu
Latitude
11° 29’N
Longtitude
79° 46’E
Important Land Marks
Centre of Advanced Study in Marine Biology
Length
16 km
Width
600 m
Average Depth
2.5 m
Tidal amplitude
1 m
Nature of the Substratum
Sandy-Muddy
pH
8.2
Type of the Estuary
Bar-built
Water Temperature
31.2°C
Salinity
28.13 ppt
Dissolved oxygen
4.5 ml/l
Predominant benthic fauna
Polychaete, Tanaids, Bivalves, Gastropods, Nematodes
Predominant phytoplankton
Coscinodiscus centralis, Planktoniella sol, Bellerochea malleus, Odontella sinensis, Thalassiothrix frauenfeldii, Thallassionema nitzschiodes, Ceratium furca, Trichodesimium erythraeum
Predominant Zooplankton
Cyclopoid nauplii, Polychaete, Larvae, Molluscan Veligens
Commercially important shellfishes
Meretrix casta
Commercially important Finfishes
Mugil cephalus, Etroplus suratensis, Chanos chanos
Sewage dishcharges
Local Panchayat Sewage
Municipal solid waste dumping
Local Panchayat Solid Waste

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