Rasbora daniconius

Slender Rasbora - Darkina - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Cyprinodontiformes
Family	:	Cyprinidae
Genus	:	Rasbora
Species	:	Rasbora daniconius

Common Names:

English	:	Slender Rasbora[729] Blackline Rasbora[729]
Bangla	:	Darkina[5] Dankina[729] Pati chela[729]

Synonyms:

Data not available

Maximum Length and Weight:

10 cm (TL) ^[347]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 4.5-5.3 : 3.5-4.2 ^[5]
Body height : Total length : Standard length = 1 : 4.6-5.8 : 3.6-4.5 ^[5]
Eye Diameter : Head length = 1 : 3.3-3.8 ^[5]
Snout length : Eye diameter = 1 : 1 ^[5]
Eye Diameter : Snout length = 1 : 1 ^[5]
Eye Diameter : Inter orbial width = 1 : 1.3 ^[5]

Taxonomic Formula:

D. 9(2/7); P₁. 14-15; P₂. 9; A. 7(2/5) ^{[Rahman, 2005]}
D ii 7; A ii 5; P i 14; V i 8 ^{[Talwar and Jhingran, 1991]}
B III; D 9(2/7); A 7(2/5); P 15; V 9; C 19; L.ls 31-34; L.tr 4.5/5 ^{[Shafi and Quddus, 1982]}

Scales:

31-34 scales on lateral line. 12-14 scales before dorsal fin base. 1.5-2.0 scales between origin of pelvic fin and lateral line. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [609]
Bangladesh	:	Least Concern (LC)	(Version 3.1) [297]

Occurrence/Distribution:

Global	:	Andaman Island[746] Bangladesh[70] Bhutan[739] Cambodia[823] India[6] Indonesia[890] Laos[714] Malaysia[890] Myanmar[832] Nepal[134] Pakistan[741] Sri Lanka[90] Thailand[837] Vietnam[890]
Bangladesh	:	Padma river, Rajshahi[274] Chalan beel, Natore[490] Sunamganj haor region, Sunamganj[729] Mahananda River, Chapainawabganj[775] Tulsiganga River, Joypurhat[780] Chitra river, Jashore[793] Buriganga River, Dhaka[798] Nabaganga river, Narail[809] Tanguar Haor, Sunamganj[1025] Punarbhaba, Dinajpur[1161] Balla beel, Moulvibazar[1168] Lohalia river, Patuakhali[1200]

Habitat and Environment:

Habitat:
River, Canal, Beel, Haor, Baor ^[347]

Environment:

Parameters	Units	Minimum	Maximum	Optimum	Ref.
Temperature	-	-	-	-	-
pH	-	-	-	-	-
DO	-	-	-	-	-
Free CO2	-	-	-	-	-

Breeding Maturity:

Data not available

Breeding Season: (red background)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[274]

Fecundity:

Data not available

Food and Feeding Habit:

Diet composition (%): Data not available

Importance:

Production and Marketing:
Production/Harvesting Season: (Green = Peak, Yellow = Off, Lemon = Moderate)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[792]

Harvesting Gears:
Seine net, Push net, Cast net ^[792]
Market price:
100-120 BDT/kg (Size: 5-6 cm, Weight: 8-10 g, Place: Noakhali, Bangladesh) ^[792]