Wetlands of Bengal

Digha–Talsari Interdunal Wetland

Digha–Talsari Wetland Complex
Data Depositor Name : Admin Contact Info: Admin
Coordinates
From
To
Mean
Latitude
21.6240° N
21.6400° N
21.6320° N
Longitude
87.5080° E
87.5300° E
87.5190° E
District: Purba Medinipur
Nearest Location: Digha
Type: Interdunal freshwater wetlands (formed between sand dunes)
Area: ~45 hectares (interconnected ponds and marshes along dunes)
Depth: Seasonal depth: 0.3 m to 1.2 m
Elevation: ~5–7 meters above sea level
Water Regimes
Main source of water: Rainfall, Catchment runoff, some tidal influence (in adjacent estuarine zones)
Permeance: Mostly intermittent (seasonal ponds fill during monsoon)
Destination: Percolation to groundwater and overflow to nearby rivulets (Baguran and Rasulpur)
Salinity: Mostly freshwater (< 0.5 g/l); slight brackish tendency near shore in dry months
Climate
Humidity: 75–85%
Annual Rainfall : ~1,500–1,800 mm
Temperature: 11°C (winter) to 38°C (summer)
Major landuse within zone of influence
Forests
Plantation
Agriculture
Settlements (Rural)
Settlements (Urban)
Industrial
Others
Notable Plant Species
Hydrilla (Hydrilla verticillata), Water lily (Nymphaea nouchali), Lotus (Nelumbo nucifera), Beach morning glory (Ipomoea pes-caprae), and emergent marsh grasses.
Notable Animal Species
Little Egret (Egretta garzetta), Bronze-winged Jacana (Metopidius indicus), Indian Pond Heron (Ardeola grayii), Common Moorhen (Gallinula chloropus), Walking Catfish (Clarias batrachus), and Snakehead Fish (Channa striata).
Conservation Sensitive Species
Invasive Species
Tilapia (Oreochromis mossambicus) and Mosquitofish (Gambusia affinis)
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
Unknown
Unknown
Salinization
Potential
Medium
Siltation
Existing
Medium
Pollution
Potential
Medium
Encroachment
Existing
Medium
Unsustainable harvest of wetland resources
Potential
Medium
Over grazing
Potential
Low
Unsustainable water abstraction
Existing
Medium
Mining (e.g. salt, sand or laterite)
Low
Low
Spread of invasive species
Potential
High
Regime fragmentation
Existing
High
Tourism pressure
Existing
High
Extreme events / Climate change
Existing
High
Intensive agriculture
Potential
Low
Intensive Aquaculture
Existing
High
Coastal erosion
Unknown
Unknown
Changes in water inflow and outflow
Unknown
Unknown
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