bin
Uge River tributary, Mamberamo, Indonesia
Indonesia, Mamberamo Raya Regency, Papua, Dabra, Mamberamo Hulu
On the expedition in the giant Mamberamo valley, the largest swampy area on the planet and surrounded by mountain ranges, located on the Indonesian side of Papúa, the German explorer Heiko Bleher discovered fish species labelled “the fish of the century” – the dwarf neon rainbowfish Melanotaenia praecox. Different species of the Gobiidae family are common companions of Melanotaenia.
It was described in 1922 with “colour unknown” and 70 years later Heiko Bleher was able to discover its amazing and almost unique colour by capturing 13 specimens, millions of which have been bred for worldwide.
In this biotope of the tributary stream of the Uge River were registered such plants as Leptochilus sp., as well as botanicals, fruits and seeds of Brachychiton populneus, Sterculia foetida or Nelumbo nucifera.
- Submitted by
- Asier Murga Arteta
- Approved by
- Heiko Blessin, Heok Hee Ng & Greg Martin
- GPS
- -3.2626319, 138.6058350
- Geographical region
- Southeastern Asia
- Drainage Basin
- Mamberamo River
- River catchment
- Uge
- Water body type
- Stream
- Water body name
- Nameless
- Water body part
- Marsh land
- Water body course
- Lower course
- Water body: tributary of
- River
- Tributary name
- Uge
Warning: Undefined variable $fish_parent in /home/biotopea/public_html/wp-content/themes/bap/content-bin.php on line 55
Water Chemistry
Water information
- Water type
- fresh-water
- Water color
- Clear water
- Water transparency
- Medium
- Concentration of sediments
- Medium
- Water temperature
- 24.2-29.0 °C
- Water flow/curent
- Slow
Chemical parameters
- pH
- 6.4-7.5
- Conductivity
- 28-65
- GH
- dGH
- KH
- dKH
- Dissolved Oxygen
Substrate in nature
- Sand
- Beige
- Pebble/Gravel
- Beige
- Stone
- Brown
- Stone form
- Roundish
- Silt/Mud
- Beige
- Leaves
- Few
- Driftwood
- Submerged terrestrial vegetation
- None
Aquatic Biotope
- Date of collecting
- 1983
- Collecting area
- River bank
- Water depth
- 1,0m
- Air temperature
- 38 °C
- Sunlight
- Partial shade
Environment
- Environment
- Untouched
- Surrounding area
It is the largest wetland area on the planet, surrounded by mountain ranges. This biotope is located in the middle part of New Guinea, not far from the main channel of the Mamberamo River. It is a jungle area, very sparsely populated.
Including the semi-nomadic tribes Tause and the last Vano tribe, who make axes with their hands. These tribes still live by harvesting Cycas revoluta, subsisting on agriculture, hunting and fishing.
- Underwater landscape
In this small slow-flowing stream with clear or black water, Melanotaenia praecox lives in shallow habitats with areas of direct sun and others shaded by riparian trees. In the water are rocks, logs fallen from trees, and aquatic vegetation.
Fishlist:
- Melanotaenia praecox (Melanotaeniidae)
- Melanotaenia affinis (Melanotaeniidae)
- Chilaterina fasciata (Melanotaeniidae)
- Allomogurnda nesolepis (Gobiidae)
- Pseudogobiopsis tigrellus (Gobiidae)
- Glossogobius sp. (Gobiidae)
Wetland plants:
- Scirpus grossus (Cyperaceae)
- Polygonium attenuatum (Cyperaceae)
- Eleocharis sphacelata (Cyperaceae)
Aquatic plants:
- Leptochilus pteropus (Polypodiaceae)
- Limnophila indica (Plantaginaceae)
- Blyxa novaguineensis (Hydrocharitaceae)
- Pogostemon stellatus (Lamiaceae)
- Utricularia minor (Lentibulariaceae)
- Ceratoptheris thalictroides (Pteridaceae)
- Threats to ecology
The danger of Mamberamo Megaproject, including a giant hydroelectric dam, which would have harmful effects on the biodiversity of the area and the people who inhabit it.
Riparian zone
- Trees near the aquatic habitat
-
Many - Brachychiton populneus (Malvaceae)
- Trees near the aquatic habitat
-
Many - Sterculia foetida (Malvaceae)
Comment by the expert
Heiko Blessin:
Heok Hee Ng: Biotope is reasonably well-described, but suffers from lack of photos/video.
Greg Martin: It would be nice to see video or photos of the wild biotope.
