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Mavicure Mountains, Rio Inrida region

Sponsored by

Colombia, Dipartimento di Guainía

There was no aquatic vegetation at the mouth of this nameless tributary. The collection spot was a very large white sandbank approximately 15 metre long and 5 metre wide bay with a dead end. With the help of 9-metre seine all the way to the end to catch species living in the open water.

Submitted by
Natasha Khardina
GPS
3.4601979, -67.9724503
Geographical region
South America
Drainage Basin
Rio Orinoco
River catchment
Water body type
River
Water body name
Inirida
Water body part
Rapids
Water body course
Upper course
Water body: tributary of
Rio
Tributary name
Orinoco

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Black water
Water transparency
High
Concentration of sediments
Low
Water temperature
30,2 °C
Water flow/curent
Strong

Chemical parameters

pH
5.7
Conductivity
24
GH
KH
Dissolved Oxygen

Substrate in nature

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

Aquatic Biotope

Date of collecting
2.12.2009
Collecting area
Shore line
Water depth
2,0m
Air temperature
34 °C
Sunlight
Full sun

Environment

Environment
Untouched
Surrounding area

Near Mavicure mountains there is only one  settlement called El Remanso on the left bank. The population are  mainly Kuripako tribe. These already civilized Indians that live from fishing and agriculture.

Underwater landscape

There was the beautiful Boulengerella lateristriga, the smallest of the needle fishes, Belonion dibranchodon, a never seen before Hemiodus species with a long black lateral stripe from the caudal peduncle to the begin of the dorsal fin and further up front a single black spot. We had also large Geophagus cf. abalius and Satanoperca cf. papaterra in the net.

Threats to ecology

None, as long as this remote area will remain little populated. On countrary, in El Remanso they were coordinating the native tree plantation organized by the natural resources department of the government as a test in six Indian villages during a period of six month to pot native trees and plant them with the begin of the rainy season.

Riparian zone

Trees near the aquatic habitat
None -

Bibliography

  • DiscusBook03 - Biotope Aquarium for Pterophyllum altum by Heiko Bleher
    ISBN ISSN 2038-971X