Purbastali Oxbow Lake (Chupi Char)
Data Depositor Name : Samriddha Chakravorty
Contact Info: samriddhachakravorty2003@gmail.com
Coordinates
From
To
Mean
Latitude
23° 25′ 54″ N
23° 27′ 54″ N
23.4483° N
Longitude
88° 19′ 45″ E
88° 21′ 54″ E
88.3471° E
Area: 500–600 hectare
Type: Ox bow wetland
Inland: yes
Depth: 1–3 m
Elevation: 10–12 m
Water Regimes
Main source of water: Rainfall, Surface runoff, Small feeder channels, Groundwater seepage
Permanence: Semi permanent
Destination: Not documented
Salinity: Freshwater
Climate
Humidity: 65–85 %
Annual Rainfall: 1400–1600 mm
Temperature: Summer: 35–40 °C | Winter: 10–15 °C
Major landuse within zone of influence
Forests
Plantation
Agriculture
Settlements (Rural)
Settlements (Urban)
Industrial
Others
Notable Plant Species
Nymphaea nouchali — Blue water lily, Nelumbo nucifera — Lotus, Hydrilla verticillata — Submerged aquatic plant, Vallisneria spiralis — Aquatic submerged plant.
Notable Animal Species
Dendrocygna javanica — Lesser Whistling Duck, Ardeola grayii — Indian Pond Heron, Hoplobatrachus tigerinus — Indian Bullfrog, Cirrhinus mrigala — Mrigal.
Conservation Sensitive Species
Lissemys punctata — Indian Flapshell Turtle
Invasive Species
Ecosystem Benefits
Community Fishing (without any lease or permission from government dept
Fishing under lease from government department
Harvest of plants (without any lease or permission from government dept
Harvest of plants under lease from government department)
Agriculture or horticulture within wetland
Grazing
Religious practices
Withdrawal of water for domestic use
Withdrawal of water for agriculture or fisheries
Bathing or wallowing of domestic animals
Others
Threats
Status
Level
Hydrological regime alteration
Existing
Unknown
Salinization
NA
NA
Siltation
Existing
Unknown
Pollution
Existing
Unknown
Encroachment
Existing
Unknown
Unsustainable harvest of wetland resources
Existing
Unknown
Over grazing
Existing
Unknown
Unsustainable water abstraction
Existing
Unknown
Mining (e.g. salt, sand or laterite)
Potential
Unknown
Spread of invasive species
Existing
Unknown
Regime fragmentation
Existing
Unknown
Tourism pressure
Potential
Unknown
Extreme events / Climate change
Existing
Unknown
Intensive agriculture
Potential
Unknown
Intensive Aquaculture
Potential
Unknown
Coastal erosion
Existing
Unknown
Changes in water inflow and outflow
NA
NA
Publication