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#4925 Blackwater tributary in Nhamundà area, Amazonas

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Brazil, Amazonas, Nhamundà

The tributary is located in the Rio Nhamundà area. The water flow is slow, and the water body is stained dark brown by the humus released by the low bed litter. The pH is about 5.5. The submerged roots, decaying branches and submerged vegetation provide an excellent shelter for the biological communities in this area. I like Heckel in this valley best.

Submitted by
Chen Meici
Geographical region
South America
Drainage Basin
Rio Amazonas
River catchment
Rio Nhamundà
Water body type
River
Water body name
Rio Nhamundà
Water body part
Flood plain
Water body course
Middle course
Water body: tributary of
Rio
Tributary name
Amazonas

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Mixed water
Water transparency
Medium
Concentration of sediments
Medium
Water temperature
28 °C
Water flow/curent
None

Chemical parameters

pH
5
Conductivity
40
GH
KH
Dissolved Oxygen

Substrate in nature

Sand
Beige
Pebble/Gravel
Mixed
Stone
Mixed
Stone form
Irregular
Silt/Mud
None
Leaves
No
Driftwood
Few
Submerged terrestrial vegetation
Yes

Aquatic Biotope

Date of collecting
Collecting area
Flooded area
Water depth
1,0m
Air temperature
32 °C
Sunlight
Filtered/dappled sun

Environment

Environment
Untouched
Surrounding area
Underwater landscape
Threats to ecology