Orichthys aor is a Senior Synonym of Sperata aor.

Sperata aor (Hamilton, 1822)

Long-Whiskered Catfish - Ayer - Native Fish - Wild (Freshwater)

view: Dorso-lateral [Mohsin, 2019b]

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Siluriformes
Family	:	Bagridae
Genus	:	Sperata
Species	:	Sperata aor

Common Names:

English	:	Long-Whiskered Catfish[729]
Bangla	:	Ayer[729] Aar[729] Gang magur[729] Ghagot[729] Buitta[729] Buitta kanta[729] Bheri ghagota[729]

Synonyms:

Mystus aor (Hamilton, 1822)
Pimelodus aor Hamilton, 1822
Aoria aor (Hamilton, 1822)
Aorichthys aor (Hamilton, 1822)
Macrones aor (Hamilton, 1822)
Orichthys aor (Hamilton, 1822)

Maximum Length and Weight:

Data not available

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 4.5-5 : 2.5-3.5 ^[5]
Body height : Total length : Standard length = 1 : 6-7.3 : 4-5.2 ^[5]
Eye Diameter : Head length = 1 : 5-9 ^[5]
Eye Diameter : Snout length = 1 : 2.5-3.5 ^[5]
Eye Diameter : Inter orbial width = 1 : 1.6-2.2 ^[5]

Taxonomic Formula:

^{[Rahman, 2015r]}
B XII; D I/7; A 12-13(3-4/9); P I/9-10; V 6; C 17 ^{[Shafi and Quddus, 1982]}
D I 7; A iii-iv 8-10; P I 9-10; V i 5; C 17 ^{[Talwar and Jhingran, 1991]}

Scales:

Scaleless. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [541]
Bangladesh	:	Vulnerable (VU)	(Version 3.1) [239]

Occurrence/Distribution:

Global	:	Bangladesh[70] India[37] Myanmar[857] Nepal[134] Pakistan[6]
Bangladesh	:	Gacher dahar beel, Sylhet[5] Chalan beel, Natore[490] Padma river, Rajshahi[274] Halda River, Chittagong Hill Tracts[598] Andharmanik river, Patuakhali[751] Sunamganj haor region, Sunamganj[729] Passur River, Khulna[752] Passur River, Khulna[752] Kaptai reservoir (Kaptai lake), Rangamati[753] Mahananda River, Chapainawabganj[775] Meghna river estuary, Noakhali[774] River Choto Jamuna, Naogaon[9] Meghna river, Narsingdi[781] Dhepa river, Dinajpur[779] Borulia haor, Kishoreganj[794] Buriganga River, Dhaka[798] Old brahmaputra, Mymensingh[796] Talma River, Panchagarh[800] Little feni river, Feni[795] Someshwari river, Netrokona[806] Jamunashwori river, Rangpur[808] Sandha river, Pirojpur[810] Atrai River, Dinajpur[815] Banar River, Mymensingh[1023] Bangshi River, Dhaka[1024] 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] Ghaghat river, Gaibandha[1202] Sandha river, Pirojpur[1206] Agunmukha river, Patuakhali[1208] Bishkhali river, Jhalakathi[816]

Habitat and Environment:

Habitat:
Haor, Baor, 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:

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:
300-400 BDT/kg (Size: 40-50 cm, Weight: 800-1000 g, Place: Noakhali, Bangladesh) ^[792]