Mystus bleekeri is a valid scientific name.

Mystus bleekeri (Day, 1877 Aug)

Day's Mystus - Tengra - Native Fish - Wild (Freshwater)

View: Group [Mohsin, 2019b]

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Siluriformes
Family	:	Bagridae
Genus	:	Mystus
Species	:	Mystus bleekeri

Common Names:

English	:	Day's Mystus[729]
Bangla	:	Tengra[5] Golsa[274] Golsa-tengra[274] Loitta tengra[729]

Synonyms:

Macrones bleekeri Day, 1877 Aug
Aoria bleekeri (Day, 1877 Aug)
Bagrus keletius (Non Valenciennes, 1840 Jan)
Macrones bleekeri burmanicus (Non Jenkins, 1910 )
Mystus bleekeri burmanicus (Non Jenkins, 1910 )

Maximum Length and Weight:

155 mm (TL) ^[5]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 5.3-5.5 : 3.5-4 ^[5]
Body height : Total length : Standard length = 1 : 5.5-8 : 3.8-4.3 ^[5]
Eye Diameter : Head length = 1 : 4.5-5 ^[5]
Eye Diameter : Snout length = 1 : 2 ^[5]
Eye Diameter : Inter orbial width = 1 : 1.5 ^[5]

Taxonomic Formula:

D. I/7; P₁. I/9-10; P₂. 6; A. 9-10 ^{[Rahman, 2005]}
D I 7-8; A iii 6-7; P I 9-10; V i 5 ^{[Talwar and Jhingran, 1991]}
B X; D I/7; A 9-10(3/6-7); P I/9-10; V 6; C 17 ^{[Shafi and Quddus, 1982]}

Scales:

Scaleless. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [650]
Bangladesh	:	Least Concern (LC)	(Version 3.1) [364]

Occurrence/Distribution:

Global	:	Bangladesh[70] Bhutan[847] India[6] Indonesia[6] Nepal[134] Pakistan[741] Thailand[71]
Bangladesh	:	Dakatia river, Chandpur[5] Padma river, Rajshahi[274] Chalan beel, Natore[490] Sunamganj haor region, Sunamganj[729] Kaptai reservoir (Kaptai lake), Rangamati[753] Mahananda River, Chapainawabganj[775] Tulsiganga River, Joypurhat[780] Meghna river, Narsingdi[781] Talma River, Panchagarh[800] Someshwari river, Netrokona[806] Bhairab river, Jashore[807] Atrai River, Dinajpur[815] Tanguar Haor, Sunamganj[1025] Balla beel, Moulvibazar[1168] Titas river, Brahmanbaria[1169] Ghaghat river, Gaibandha[1202] Sandha river, Pirojpur[1206] Bishkhali river, Jhalakathi[816]

Habitat and Environment:

Habitat:
River, Haor, Baor ^[347]

Environment:

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

Breeding Maturity:

Data not available

Breeding Season: (red background)

Data not available

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:
150-200 BDT/kg (Size: 10-12 cm, Weight: 20-25 g, Place: Noakhali, Bangladesh) ^[792]