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| Profile |
| Scientific
name: |
Varicorhinus barbatulus |
| Common
names: |
Ku hua, Ku wei, Qi
tou wei (in Mandarin pronunciation) |
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| Features: |
Varicorhinus
barbatulus are cylindrical-shaped and slippery. Adults are
usually 15-25cm long, though they have been known to grow
longer than 50cm and weigh more than 750g. Their short mouths
contain two tiny pairs of mouth barbels and chin barbels,
and their lower jaws are obtuse and protrude outward. The
Varicorhinus barbatulus has an upper chin with well-developed
mouth folds and a shovel-shaped lower chin with cuticular
edges. Their backs are yellowish-green, their underbellies
are white, the bottom scales on their sides have black spots,
their dorsal fin membranes are black, and the upper half of
their eyes are red. |
| Behavior: |
Varicorhinus
barbatulus are omnivorous fish that feed on the algae clinging
to rocks in the water and aquatic insects. Fairly widespread,
adults stay mostly in the upper and middle depths of a body
of water while young fingerlings stay in the shallower waters
near shore where the currents are slower. During the dry season
or when the water is cold, they will often group together
in rocky caves. Their breeding season is quite long and contains
several breeding peaks. Females lay their eggs on sandy riverbeds
where the currents are slower. |
| Habitat: |
A widespread
species, Varicorhinus barbatulus can be found in the upper
and middle reaches of almost all the rivers in Taiwan, with
the exception of the short, small rivers on the Hengchun Peninsula. |
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