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Opsarius canarensis : aquarium
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Opsarius canarensis
Picture by
Sreekantha
Classification / Names
Common names
|
Synonyms
| Catalog of Fishes(
genus
,
species
) |
ITIS
|
CoL
|
WoRMS
|
Cloffa
Teleostei (teleosts) >
Cypriniformes
(Carps) >
Danionidae
(Danios) > Chedrinae
Etymology: More on author:
Jerdon
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Asia: India.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref.
4832
)
Dorsal
soft rays
(total): 12-13;
Anal
soft rays
: 14 - 16.
Barilius canarensis
differs from
B. ardens
by having a unique color pattern consisting of a double row of spots along the length of the body, the first row with 9-13 round or oval bluish-green spots 1-2 scales high and 1-2 scales wide and the second row, with 3-4 smaller spots reaching up to the anal-fin origin (vs. a row of 7-9 large, vertically-elongate, bluish-green blotches 4-6 scales high and 2-3 scales wide along the length of the body, of which in large adults the first three blotches are fragmented into a smaller row of blotches). It can be distinguished from
B. ardens
by having 5+4+2 (vs. 5+4+3) teeth on fifth ceratobranchial, 14-15 (vs. 16-18) predorsal scales, and dorsal and anal fins margined with white (vs. broadly margined with bright orange). It differs from
B. malabaricus
by having 10½ (vs. 11½) branched dorsal-fin rays and 13½ (vs. 14½-15½) branched anal-fin rays, and having the dorsal and anal fins margined with white (vs. broadly margined with bright orange). It can be distinguished from
B. bakeri
by having a unique color pattern consisting of a double row of spots along the length of the body, the first row with 9-13 round or oval bluish-green spots 1-2 scales high and 1-2 scales wide and the second row, with 3-4 smaller spots reaching up to the anal-fin origin (vs. only a single row of spots along the length of the body); having 35-36 + 1 (vs. 37-38 + 1) lateral line scales and slender, well-defined gill rakers (vs. fleshy, rudimentary gill rakers) (Ref.
100448
).
Inhabit clear streams with sandy and rocky bottom (Ref.
41236
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Menon, A.G.K.
, 1999. Check list - fresh water fishes of India. Rec. Zool. Surv. India, Misc. Publ., Occas. Pap. No. 175, 366 p. (Ref.
41236
)
IUCN Red List Status (Ref.
130435
)
Endangered (EN)
(B1ab(iii)+2ab(iii)); Date assessed:
27 June 2010
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: of no interest; aquarium: commercial
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00316 - 0.01588), b=3.05 (2.86 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.4 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Page last modified by :
mrius-barile
- 20 July 2016
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