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Jorai River, West Bengal, India
India, West Bengal, Cooch Behar district
The Jorai River in West Bengal, India, supports diverse flora and fauna within its freshwater ecosystem. Its underwater habitat features moderate to strong water flow, sandy and rocky substrates, and aquatic plants like Vallisneria sp. and Hygrophila sp., which provide shelter for species such as the drape fin barb.
The riparian zone, rich with bamboo, shrubs, and overhanging trees, sustains various wildlife in a subtropical climate influenced by monsoon rains. Human activities like fishing and agriculture pose threats, making conservation efforts essential to maintain the river’s ecological balance.
- Submitted by
- Devagya Uikey
- Approved by
- Friedrich Bitter & Sujoy Banerjee
- Geographical region
- Southern Asia
- Drainage Basin
- Brahmaputra River Basin
- River catchment
- Tributaries of the Torsa River within Jalpaiguri District
- Water body type
- Stream
- Water body name
- Brahmaputra River
- Water body part
- Marsh land
- Water body course
- Middle course
- Water body: tributary of
- Wetland
- Tributary name
- Torsa River
Videos above and below water
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Water Chemistry
Water information
- Water type
- fresh-water
- Water color
- Clear water
- Water transparency
- High
- Concentration of sediments
- Low
- Water temperature
- 23.3 °C
- Water flow/curent
- Slow
Chemical parameters
- pH
- 7.8
- Conductivity
- 250
- GH
- dGH
- KH
- dKH
- Dissolved Oxygen
- 80 %
Substrate in nature
- Sand
- White
- Pebble/Gravel
- Beige
- Stone
- Reddish
- Stone form
- Irregular
- Silt/Mud
- Grey
- Leaves
- Many
- Driftwood
- Few
- Submerged terrestrial vegetation
- Yes
Aquatic Biotope
- Date of collecting
- Collecting area
- Water depth
- Air temperature
- Sunlight
Environment
- Environment
- Affected by human activity
- Affected by human activity
- Pollution
- Pollution
- Little
- Surrounding area
The Jorai River region experiences a subtropical climate with distinct wet and dry seasons, with heavy monsoon rains impacting the river’s flow. The riparian zone is lined with dense vegetation, including bamboo groves, shrubs, and overhanging trees that provide shade and organic matter input.
The surrounding area supports diverse wildlife, including birds, insects, amphibians, and small mammals, all contributing to the ecosystem’s balance.
Terrestrial vegetation:
- Saccharum elephantinum (Poaceae)
- Lantana camara (Verbenaceae)
- Chromolaena odorata (Asteraceae)
- Underwater landscape
Fishlist:
- Oreichthys crenuchoides (Cyprinidae)
- Dario dario (Badidae)
- Psilorhynchus sucatio (Psilorhynchidae)
- Danionella priapus (Cyprinidae)
Crustaceans:
- Caridina babaulti (Atyidae)
Aquatic plants:
- Pistia stratiotes (Araceae)
- Hydrilla verticillata (Hydrocharitaceae)
- Phragmites australis (Poaceae)
- Cryptocoryne retrospiralis (Araceae)
- Cryptocoryne spiralis (Araceae)
- Threats to ecology
Human activities like fishing, agriculture, and occasional pollution pose threats to the habitat, necessitating conservation efforts to maintain the natural flow and quality of the river.
Riparian zone
- Trees near the aquatic habitat
-
Many -
Comment by the expert
Friedrich Bitter: The videos offer interesting insights into life underwater.
Sujoy Banerjee: Very well researched biotope, lots of reference biotope videos reference material. Well done.
