Fish: Labeo dero (Pahari Rohu) | fish | fishing | angler fish | goldfish |
Labeo dero (Pahari Rohu)
Geographical Distribution:
Pakistan, India, Nepal, Bangladesh, Burma, Thailand, China
and Sri Lanka.
Fish | fishing | | angler fish | | goldfish | |
Morphological Characters:
Its body well built and sub-cylindrical. Its head is small
and 20 % of the whole body. The depth of body is deep and equal to the length
of head. The dorsal side of the snout has deep groove. Many small pits are
present on snout. There is no lobe on lateral side of snout. The mouth is big
and inferior. The lower lip bears a number of dorsal papillae. The lower jaw
bears a horny layer. Only two small maxillary barbels are present on the sides
of the mouth. The eyes are located in the posterior half of the head. The
diameter of the eye is 25 % of head length. The dorsal fin originate between
snout and base of tail. The dorsal fin is somewhat elevated than the head and
bears 13 rays. The pectoral and pelvic fins are small and carry 18 and 09 rays
respectively. Anal fin is also small and has 8 rays. The caudal fin is forked
and is longer than head. On lateral line, there are 41-43 scales. Colour of the
dorsal side is brownish while rest of the body is silvery. On each scale, there
is conspicuous red line. The eyes are reddish in colour. There are pores on
upper lip and snout.
Feeding:
Basically it is
herbivorous fish and eat planktons and insects. It is the substitute of rohu in
mountaineous area.
Breeding:
It spawns during July to August.
The pattern of breeding is similar to that of rohu and thaila. The temperature
required for spawning is 20-26 oC. Fecundity rate is about 50,000 eggs/kg body
weight.
Prospects in Aquaculture:
Its growth rate is poor compared to other
culturable species. Therefore, it is not commonly cultured in central and
southern Punjab.
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