Mastacembelus armatus is a valid scientific name.

Mastacembelus armatus (Lacepède, 1800b)

Zig-Zag Eel - Shal baim - Native Fish - Wild (Freshwater)

View: Dorso-lateral [Mohsin, 2019b]

Systematic Position:

Data not available

Common Names:

English	:	Zig-Zag Eel[729] Tire-Track Spinyeel[729]
Bangla	:	Shal baim[5] Bamni[729] Go baim[729] Chia baim[729]

Synonyms:

Macrognathus armatus Lacepède, 1800b
Mastacembelus armatus armatus (Lacepède, 1800b)
Mastacembelus ponticerianus Cuvier, 1832 Jan
Mastacembelus marmoratus Cuvier, 1832 Jan
Macrognathus caudatus McClelland, 1842
Macrognathus hamiltonii McClelland, 1844
Mastacembelus manipurensis Hora, 1921 Dec
Macrognathus undulatus (Non McClelland, 1844)
Macrognathus hamiltoni McClelland, 1844

Maximum Length and Weight:

>60 cm (TL) ^[347] >900 mm (TL) ^[5]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 6.5 : 6.3 ^[5]
Body height : Total length : Standard length = 1 : 11..5 : 11 ^[5]
Eye Diameter : Head length = 1 : 10.5 ^[5]
Eye Diameter : Snout length = 1 : 3.5 ^[5]
Eye Diameter : Inter orbial width = 1 : .8 ^[5]

Taxonomic Formula:

D XXXII - XL 64-92; A III 64-90; P 21-27; C 14-17 ^{[Talwar and Jhingran, 1991]}
B VI; D 32-39/74-90; A 3/75-88; P 23 ^{[Shafi and Quddus, 1982]}D. XXXVII-XXXVIII/ 78-84; P₁. 25-26; A. III/ 77-85 ^{[Rahman, 2005]}

Scales:

28-30 scales between origin of dorsal fin and lateral line. [5]

Chemistry:

Name

Amount

Unit

Body Parts

Matter Type

Specimen

Ref.

13-cis-dehydroretino

5

μg/ 100 g

Edible parts

Raw

Wild

824

13-cis-retinol

1

μg/ 100 g

Edible parts

Raw

Wild

824

All-trans-dehydroret

51

μg/ 100 g

Edible parts

Raw

Wild

824

All-trans-retinol

1

μg/ 100 g

Edible parts

Raw

Wild

824

Ash

1.0

g/100 g

Edible parts

Raw

824

Calcium

449

mg/ 100g

Edible parts

Raw

Wild

824

Energy

381

kJ/100 g

Edible parts

Raw

824

Fat

1.7

g/100 g

Edible parts

Raw

824

Iodine

13

mg/ 100g

Edible parts

Raw

Wild

824

Iron

1.9

mg/ 100 g

Edible parts

Raw

Wild

824

Magnesium

35

mg/ 100g

Edible parts

Raw

Wild

824

Moisture

78.6

g/100 g

Edible parts

Raw

824

Potassium

322

mg/ 100g

Edible parts

Raw

Wild

824

Protein

17.9

g/100 g

Edible parts

Raw

824

Selenium

12

mg/ 100g

Edible parts

Raw

Wild

824

Sodium

47

mg/ 100g

Edible parts

Raw

Wild

824

Vitamin A

27

μg/ 100 g

Edible parts

Raw

Wild

824

Vitamin B12

1.72

μg/ 100 g

Edible parts

Raw

Wild

824

Vitamin D2

0.76

μg/ 100 g

Edible parts

Raw

Wild

824

Vitamin D3

1.30

μg/ 100 g

Edible parts

Raw

Wild

824

Zinc

1.1

mg/ 100g

Edible parts

Raw

Wild

824

β-Caroten

5

μg/ 100 g

Edible parts

Raw

Wild

824

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [535]
Bangladesh	:	Endangered (EN)	(Version 3.1) [225]

Occurrence/Distribution:

Global	:	Bangladesh[70] Bhutan[739] Cambodia[107] China[1053] India[6] India[203] Laos[909] Malaysia[1054] Myanmar[832] Nepal[134] Pakistan[741] Sri Lanka[90] Thailand[837] Vietnam[714]
Bangladesh	:	Padma river, Rajshahi[274] Chalan beel, Natore[490] Halda River, Chittagong Hill Tracts[598] Andharmanik river, Patuakhali[751] Sunamganj haor region, Sunamganj[729] Kaptai reservoir (Kaptai lake), Rangamati[753] River Choto Jamuna, Naogaon[9] Tulsiganga River, Joypurhat[780] Meghna river, Narsingdi[781] Dhepa river, Dinajpur[779] Borulia haor, Kishoreganj[794] Chitra river, Jashore[793] Buriganga River, Dhaka[798] Old brahmaputra, Mymensingh[796] 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] Feni river, Feni[1165] Shakla heel, Brahmanbaria[1167] Balla beel, Moulvibazar[1168] Titas river, Brahmanbaria[1169] Lohalia river, Patuakhali[1200] Ghaghat river, Gaibandha[1202] Sandha river, Pirojpur[1206] Belua river, Pirojpur[1207] Agunmukha river, Patuakhali[1208]

Habitat and Environment:

Habitat:
Canal, Beel, 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]

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, Gill net, Cast net, Bamboo trap ^[792]
Market price:
300-350 BDT/kg (Size: 50-60 cm, Weight: 800-1000 g, Place: Noakhali, Bangladesh) ^[792]