Borneo Field Trip Diaries - Part IX
The Crypt. Hunting Trip
by Michael Lo
of Sarawak, Malaysia
From his website: http://www.ibanorum.netfirms.com
Aquarticles
DATE: February 12th - 13th , 2005
February 12th was the fourth day of the Chinese New Year celebration. I decided to go to
hunt for some Cryptocoryne plants near the central of Sarawak with my friend,
Andrew. My exploration area was very wide. I decided to explore from Seri Aman to
Bintangor, so I was planning to spend two days and stay a night in Sarekei town.

A green lion dance (Chinese New Year celebration).
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"BACK."

The art of Borneo
After 4 hours of driving, we reached a small division of Sarawak called Saratok. There
are a lot of gravel roads in the interior part of Saratok. My car was not suitable to run
on this kind of road so we had to drive very slowly.
We reached a stream after 20 minutes of driving. Andrew carried his video-camera while
I took out my net and camera and ran down to the stream. It was a clearwater stream. I
caught a lot of Rasbora tuberculata, and also collected wood shrimp and Puntius
kuchingensis.

This is a habitat of man-eating crocodiles.

A hill paddy field.

A small stream in the interior part of Saratok.

Rasbora tuberculata
Puntius kuchingensis

Halfbeak
Goby
Wood shrimp
After photographing all the fish we collected, we continued our journey to a remote
area of Saratok. We came across a river where the water was a little bit black-coloured
and did not appear to be a good habitat for aquatic plants. Nevertheless, we decided to go
down to the river to look for fish and aquatic plants. We found a jungle trail running
along the river. At first the water was too deep, so we hiked through the bushes to a
shallower part of the river. When I walked across the river I was surprised to see Egeria
densa. I was surprised it can grow well in this kind of habitat.

The water of this river is a bit turbid.

Egeria densa

Hair grasses
At that time, I did not notice that there was something about 3 to 4 metres away from
where I saw Egeria densa.(Later I found out it was Cryptocoryne bullosa
!!!)
We walked further to the upper part of the river but there was nothing there, so we
decided to turn back. On the way back to where we parked our car, I saw a stream. The
water was running fast and there were a lot of rocks in the river bed, with mosses and
some plants growing on the rocks. It looked like a bonsai garden. Then I saw something
growing in the water - a Cryptocoryne plant! This was the first time I saw
Cryptocorynes growing on a rocky surface!! At first I thought it was Cryptocoryne
bullosa, but upon examining the leaf, I discovered that it was not a crinkled leaf.
It was the most common Cryptocoryne in Borneo, Cryptocoryne striolata !

The habitat of Cryptocoryne striolata

Cryptocoryne striolata, the most common species

Emersed Cryptocoryne striolata and Piptospatha sp.

Submerged Cryptocoryne striolata
Suddenly it started raining heavily. We went to hide under a tree. We were wet and
tired but were so happy because we never been to such a remote place like this before.
When the rain stopped, we walked back to the spot where we found Egeria densa.
Andrew was in front of me and he did not notice anything under his feet, but I was stunned
when I noticed something in front of me. It was a cluster of aquatic plants in which the
leaf is almost black-coloured! It was Cryptocoryne bullosa!
Luckily my eyes were sharp enough to see this black-coloured Cryptocoryne bullosa.
I was really surprised to see two species of Cryptocoryne in the same river
within 500 metres.

Cryptocoryne bullosa. The pH of the water is 6.7!

The spathe is red-coloured!
After collecting the Crypts, we headed north to Sarekei town. We paid a visit to our
friends in Sarekei and Bintangor. They were happy to see us and invited us to dine at
their home. It was raining cats and dogs but we could feel the warmth of the hospitality
of our host in our hearts.

Chinese New Year visiting. (Bintangor)
February 13th
After photographing the riverbank and town center of Sarekei, we headed east to a swampy
area at Bintangor. We were surveying the area without leaving the car to collect anything.
Cabomba aquatica and Salvinia auriculata were spotted in the ditches.

Sungai Sarekei

Express boat to Sibu. (from Sarekei)

Ferry crossing over Sungai Nyelong at Sarekei.

Surveying the swampy area of Sarekei and Bintangor.

Bintangor bridge

Cabomba aquatica and Salvinia auriculata.
After more than half an hour, we saw a beautiful slightly black-coloured river. There
were some hair grasses growing on the river bank. We went down to the river and we saw a
cluster of Cryptocoryne auriculata growing in the shade. The water was a little
bit polluted as there are villagers living up river. (Local folks treat the river as a
dumping ground for rubbish and sewage). Luckily the Crypts can still survive.

An immature spathe of Cryptocoryne auriculata.

The habitat of Cryptocoryne auriculata. (water pH is 6.5)
On the way down to Kuching, we saw a signboard "Locality Plan" near Betong
town. It was a simple map which showed there are some jungle trails in the remote area of
Betong. We turned our car into a small road marked on the signboard as "Spak
Clearwater River Adventure."

A signboard which shows the way to go to Bukit Sadok's jungle trail
and Spak Clearwater River Adventure.

The thick jungle of Betong division.
We passed by the yellow-coloured Sungai Layar. It was a hilly road and a big portion is
still under construction. We will come back to explore this area. We stopped at a small
stream on the way back. I caught a lot of bumblebee gobies in this stream but I released
most of them.

Sungai Layar. Most of the fish here are bumblebee gobies.

Water lilies were growing abundantly in this small river.

Upper Skrang river.
On the way down to Seri Aman, we stopped at a clearwater river. I caught Rasbora
sumatrana, Puntius banksi, Puntius kuchingensis, Nemachilus saravacensis,
Hemirhamphodon pogonognathus, Homaloptera sp., Nandus nebulosus and wood
shrimp. I could not find any Borneo suckers in this fast running water.

A clearwater river at Seri Aman.

Shrimp
Suddenly Andrew saw a fish hiding behind small rock. I took away the rock and I was
shocked to see it was a wild fighting fish! It swam away to hide when I wanted to catch
it. I caught a juvenile at the riverbank few minutes later. I could not identified it but
I could see that it was not the common Betta ibanorum as it had green-coloured
cheeks!
I moved to an upper part of the river and caught a mouthbrooding male betta hiding
under the submerged tree root ....and I was very sure it was my favourite Betta
taeniata! A few minutes later, I caught another mouthbrooding male betta on the same
spot.

Betta taeniata "Seri Aman"
It was a fruitful day.
I will be back to those areas I visited before in the future to search for new species
of fish and aquatic plant.
Go to: Rivers of Sarawak
Or, back to Part I of this series:
Kuhli Loaches Cast a Magic Spell on Me! |