ENVIS Centre, Ministry of Environment & Forest, Govt. of India
Printed Date: Saturday, October 12, 2024
Vellar estuary
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Name of the River
|
Vellar
|
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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
|
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Type of the Estuary
|
Bar-built
|
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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
|
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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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Image
Map
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