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Subansiri river, Brahmaputra, India

Sponsored by

India, Assam, Sumdirimukh

Small pool near the main channel.

Submitted by
Miran Župevc
Approved by
Friedrich Bitter & Sven Kullander
GPS
27.1716995, 94.1643829
Geographical region
Southern Asia
Drainage Basin
Brahmaputra basin
River catchment
Subansiri river
Water body type
Pool
Water body name
Subansiri river
Water body part
Flood plain
Water body course
Lower course
Water body: tributary of
River
Tributary name
Brahmaputra

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
High
Concentration of sediments
High
Water temperature
°C
Water flow/curent
Slow

Chemical parameters

pH
7.35
Conductivity
139.2
GH
42 mg/l
KH
Dissolved Oxygen
980 %

Substrate in nature

Sand
Beige
Pebble/Gravel
Mixed
Stone
Mixed
Stone form
Roundish
Silt/Mud
Leaves
Few
Driftwood
Few
Submerged terrestrial vegetation
no

Aquatic Biotope

Date of collecting
Collecting area
Flooded area
Water depth
1,0m
Air temperature
Sunlight
No sunlight

Environment

Environment
Affected by human activity
Affected by human activity
Pollution
Pollution
Moderate
Surrounding area

The river flows through the cities and wilderness of India, surrounded by trees as well as meadows and fields.

Underwater landscape

Sand, stones, pebbles, logs, leaves, and branches.

4 Gachua sp. and 2 Chuna sp.

50 Ceratophyllum demersum plants.

Threats to ecology

The greatest danger to the river is the erosion and siltation of the river as a result of the construction of the Subansiri dam on this river. Also, industry and agroculture are threatening the area.

Riparian zone

Trees near the aquatic habitat
Few -

Comment by the expert

Friedrich Bitter: Good biotope description with few photos. Unfortunately no information about the endangerment level.

Sven Kullander: Well researched, but I am concerned about the use of predatory journals among which International Journal of Fisheries and Aquatic Studies was placed by Raghvan et al (2015). This means pay-to publish without peer revieew. On the other hand the biotope described is fairly common in the region. The number of fish species is less than expected, but that is a restriction due to the aquarium limitations that must be accepted