fisheries: of no interest; aquaculture: commercial; aquarium: commercial
Resilience:
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:
Asia: Nilwala River basin, Opatha, Sri Lanka.
Diagnosis:
Conspicuous color pattern consisting of some 7-11 irregular, parallel, dark blue vertical bars on the anterior part of the sides and a short longitudinal stripe on caudal peduncle, continued in the median caudal rays (Ref. 6874). Description: Dorsal fin with 3 simple and 11-12 branched rays; anal fin with 3 simple and 13-15 branched rays; pectoral fin with one simple and 11-13 branched rays; and pelvic fin with one simple and 7 branched rays (Ref. 6874).
Biology:
Occurs in still pools to swift flowing streams with pebble or boulder substrates, seldom over sand. Has not been found in silted rivulets flowing into mainstream. More sedentary than D. malabaricus. Forms groups of 3-5 individuals slowly moving near the surface. Probably feeds on insects. Aquarium fish exporters voluntarily refrained from collecting this species until it was better understood and bred commercially. Collected in moderate numbers
Threatened:
Critically Endangered, see IUCN Red List (B1+2c) , (Ref. 36508)
Sri lanka is report to have varieties of Fresh Water Fishes. Among them there are endemic species that can be found only in sri lanka. Most of them are near extinction due to deforestation over-fishing, pollution.Our main objective is to give and idea about these species and the importance of conservation.
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