Labeo gonius is a valid scientific name.

Labeo gonius (Hamilton, 1822)

- Ghainna - Native Fish - Wild (Freshwater)

View: Lateral [Hossain, 2019]

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Cypriniformes
Family	:	Cyprinidae
Genus	:	Labeo
Species	:	Labeo gonius

Common Names:

English	:	Data not available
Bangla	:	Ghainna[5] Goni[5] Kurchi[5] Shada Ghoni[598]

Synonyms:

Cyprinus gonius Hamilton, 1822
Rohita gonius (Hamilton, 1822)
Rohita chalybeata Valenciennes, 1842 Aug
Osteochilus chalybeatus (Valenciennes, 1842 Aug)
Labeo microlepidotus Valenciennes, 1842 Aug
Rohita microlepidota (Valenciennes, 1842 Aug)

Maximum Length and Weight:

60 cm (TL) ^[347] 61 cm (TL) and 1.36 kg ^[5]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 5-5.3 : 3.8-4 ^[5]
Body height : Total length : Standard length = 1 : 4.5-4.8 : 3.5-3.7 ^[5]
Eye Diameter : Head length = 1 : 5-5.5 ^[5]
Eye Diameter : Snout length = 1 : 1.5-2 ^[5]
Eye Diameter : Inter orbial width = 1 : 2.7 ^[5]

Taxonomic Formula:

D. 16-17(3/13-14); P₁. 15-16; P₂. 9(1/8); A. 7(2/5) ^{[Rahman, 2005]}
D ii-iii 13-16; A ii 5-6; P i 16; V i 8 ^{[Talwar and Jhingran, 1991]}
B III; D 15-19; A 8(3/5); P 17-18; V 9; C 19; L.ls 71-48; L.tr 16/17 ^{[Shafi and Quddus, 1982]}
B iii; D 15-19 (2-3/13-16); A 8(3/5); P 17-18; V 9; C 19; L.ls 71-84; L.tr 16/17 ^{[Bhuiyan, 1964]}

Scales:

73-80 scales on lateral line. 28-29 scales before dorsal fin base. 16.5 scales between origin of dorsal fin and lateral line. 11.5 scales between origin of pelvic fin and lateral line. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [553]
Bangladesh	:	Near Threatened (NT)	(Version 3.1) [252]

Occurrence/Distribution:

Global	:	Afghanistan[847] Bangladesh[70] India[6] Myanmar[742] Nepal[134] Pakistan[741]
Bangladesh	:	Padma river, Rajshahi[274] Chalan beel, Natore[490] Halda River, Chittagong Hill Tracts[598] Sunamganj haor region, Sunamganj[729] Kaptai reservoir (Kaptai lake), Rangamati[753] Meghna river, Narsingdi[781] Dhepa river, Dinajpur[779] Borulia haor, Kishoreganj[794] Buriganga River, Dhaka[798] Old brahmaputra, Mymensingh[796] Someshwari river, Netrokona[806] Someshwari river, Netrokona[806] Jamunashwori river, Rangpur[808] Sandha river, Pirojpur[810] Atrai River, Dinajpur[815] Banar River, Mymensingh[1023] Tanguar Haor, Sunamganj[1025] Kishoreganj Haor Region, Kishoreganj[1026] Punarbhaba, Dinajpur[1161] Dekhar haor, Sunamganj[1164] Shakla heel, Brahmanbaria[1167] Balla beel, Moulvibazar[1168] Titas river, Brahmanbaria[1169] Belua river, Pirojpur[1207]

Habitat and Environment:

Habitat:
River ^[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]

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[347]

Fecundity:

Egg: colour- Blueish, dia- 4-45 mm, ^[347]

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:
200-250 BDT/kg (Size: 40-50 cm, Weight: 500-800 g, Place: Noakhali, Bangladesh) ^[792]