A blackwater river in the northern part of Sibu. In the foreground is Cryptocoryne yujii, next to it
is a pandan plant (Pandanus sp.), and Barclaya mottleyi and hair grass Eleocharis sp. grow in the
Betta akarensis is a very common wild fighting
only managed to collect some plants from
All of the water plants we collected were
wrapped up using wet newspaper and then
kept inside a plastic container in order to
maintain moisture; this would effectively
prevent the leaves from drying up.
After crossing the Rajang River using the
new Durin Bridge, we headed east to the town
of Julau. We stopped our car near a clearwater
river that rested beside a native’s longhouse.
There were no water plants near the bridge,
so we walked along the river to a shaded
area covered by forest. We found some dark-purple and greenish colored Cryptocoryne
striolata growing on the submerged rocks.
This Cryptocoryne species happens to be the
most common aquatic aroid in Borneo.
We later visited another two locations
to collect Cryptocoryne auriculata and C.
bullosa. Both species are also found in
clear and slower-flowing streams. After
collecting and packing all of the plants into
our container, we left Julau exhausted and
began the long journey back home.
The population of Cryptocoryne in the
lower part of the Rajang River Basin is
considered one of the largest in Borneo.
However, a lot of the habitats of Cryptocoryne
have been destroyed due to logging, water
pollution, farming, and construction. It is
sad to see this natural wealth decimated.
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Jongkar, G., and K. K. P. Lim. 2004. “Fishes, Sarawak Bau Limestone
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