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Creek in Pandaan Pasuruan, East Java, Indonesia

Sponsored by

Indonesia, East Java, Bakalan, Durensewu, Pandaan, Pasuruan Regency

The biotope I recreated this time is a mountain stream in the Pandaan area, Pasuruan, East Java. Although this is a small stream, the current tends to be very fast, which is the habitat of such a fast-swimming fish as Barbodes binotatus, Mystacoleucus obtusirostris and others.

This river interested me also because it is the habitat of a very beautiful Rhinogobius sp. which looks like Rhinogobius similis. This fish is still often found in some regions of East Java, such as in Mojokerto, where mountain streams always have this fish.

Hopefully this biotope aquarium will inspire others to recreate a habitat for Rhinogobius sp. fish in the aquarium.

Submitted by
MAA Rafsanjani
Approved by
Heok Hee Ng & Greg Martin
GPS
-7.6673112, 112.6859360
Geographical region
Southeastern Asia
Drainage Basin
Java Sea
River catchment
Bekacak River
Water body type
Creek
Water body name
Pandaan
Water body part
Waterfall
Water body course
Headwaters
Water body: tributary of
River
Tributary name
Bekacak

Videos above and below water

Water Chemistry

Water information

Water type
Fresh water
Water color
Clear water
Water transparency
Medium
Concentration of sediments
Medium
Water temperature
22-23 °C
Water flow/curent
Strong

Chemical parameters

pH
7
Conductivity
GH
100 mg/l
KH
90 mg/l
Dissolved Oxygen
90 %

Substrate in nature

Sand
Black
Pebble/Gravel
Mixed
Stone
Mixed
Stone form
Roundish
Silt/Mud
None
Leaves
Few
Driftwood
Many
Submerged terrestrial vegetation

Aquatic Biotope

Date of collecting
14 January, 2023
Collecting area
Open water
Water depth
1,0m
Air temperature
22 °C
Sunlight
Full sun

Environment

Environment
Affected by human activity
Affected by human activity
Agriculture
Agriculture
Advanced
Surrounding area

Pandaan is a highland area in East Java. Main occupations in the area are farming, gardening, livestock. This area is known for its natural attractions, such as waterfalls, agro-business and others.

Underwater landscape

Pandaan Creek is a stream flowing from the mountains in Pandaan, where the water is used by local residents to irrigate gardens, fish farms and others. In this river are found Rhinogobius sp, Barbodes binotatus, Mystacoleucus obtusirostris and others.

This river is full of stones, roots and wood. The water is fast flowing, clear and when it rains it becomes cloudy.

Fish:

  • Barbodes binotatus (Cyprinidae)
  • Mystacoleucus marginatus (Cyprinidae)
  • Rhinogobius sp. (Oxudercidae)
Threats to ecology

The natural beauty inspired the author to recreate the biotope aquarium as close as possible to its natural environment.

Riparian zone

Trees near the aquatic habitat
Few -

Bibliography

Comment by the expert

Heok Hee Ng: Threats to environment not identified. List of native fish species is incorrect Rhinogobius is not native to Java).

Greg Martin: Very thorough.