Eleotris nigra is a Misspelled Synonym of Eleotris fusca that must not be used.

Eleotris fusca (Forster in Bloch and Schneider, 1801)

Dusky sleeper - Budh Bailla - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Perciformes
Family	:	Eleotridae
Genus	:	Eleotris
Species	:	Eleotris fusca

Common Names:

English	:	Dusky sleeper[6]
Bangla	:	Budh Bailla[5]

Synonyms:

Poecilia fusca Forster in Bloch and Schneider, 1801
Culius fuscus (Forster in Bloch and Schneider, 1801)
Eleotris fuscus (Forster in Bloch and Schneider, 1801)
Eleotris niger Quoy and Gaimard, 1824-25
Culius niger (Quoy and Gaimard, 1824-25)
Eleotris nigra Quoy and Gaimard, 1824-25
Eleotris fornasini Bianconi, 1850-62
Eleotris fornasinii Bianconi, 1850-62
Eleotris cavifrons Blyth, 1860
Eleotris klunzingerii Pfeffer, 1893
Eleotris mauritianus (Non Bennett, 1832)

Maximum Length and Weight:

83 mm (TL) ^[5] 17 cm (TL) ^[6] 15 cm (TL) and 100 g ^[1657]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 3.5-3.8 : 3-3.3 ^[5]
Body height : Total length : Standard length = 1 : 5-5.6 : 4-4.5 ^[5]
Eye Diameter : Head length = 1 : 5-5.6 ^[5]
Eye Diameter : Snout length = 1 : 1-1.2 ^[5]
Eye Diameter : Inter orbial width = 1 : 1.8-2.2 ^[5]

Taxonomic Formula:

D₁. VI; D₂. 1/8; P₁. 17; P₂. 6; A. 1/8 ^{[Rahman, 2005]}
D₁ VI; D₂ I 8-9; A I 8; P 15-18; V I 5 ^{[Talwar and Jhingran, 1991]}
D₁ VI; D₂ I 8-9; A I 8; P 15-18; V I 5 ^{[Talwar and Jhingran, 1991]}
B 6; D 6/1/8; A 1/8; P 15-18; V 1/5; C 12; L.ls 60-65; L.tr 16; Vert. 11/14 ^{[Shafi and Quddus, 1982]}

Scales:

59-61 scales on lateral line. 30-45 scales before dorsal fin base. [5]

Chemistry:

Name

Amount

Unit

Body Parts

Matter Type

Specimen

Ref.

All-trans-retinol

37

μg/ 100 g

Edible parts

Raw

Wild

824

Ash

3.1

g/100 g

Edible parts

Raw

824

Calcium

980

mg/ 100 g

Edible parts

Raw

Wild

824

Copper

0.030

mg/ 100 g

Edible parts

Raw

Wild

824

Energy

330

kJ/100 g

Edible parts

Raw

824

Fat

1.2

g/100 g

Edible parts

Raw

824

Folate

3.7

μg/ 100 g

Edible parts

Raw

Wild

824

Iodine

31

μg/ 100 g

Edible parts

Raw

Wild

824

Iron

0.79

mg/ 100 g

Edible parts

Raw

Wild

824

Magnesium

39

mg/ 100 g

Edible parts

Raw

Wild

824

Manganese

0.29

mg/ 100 g

Edible parts

Raw

Wild

824

Moisture

78.9

g/100 g

Edible parts

Raw

824

Phosphorus

580

mg/ 100 g

Edible parts

Raw

Wild

824

Potassium

190

mg/ 100 g

Edible parts

Raw

Wild

824

Protein

16.9

g/100 g

Edible parts

Raw

824

Selenium

49

μg/ 100 g

Edible parts

Raw

Wild

824

Sodium

55

mg/ 100 g

Edible parts

Raw

Wild

824

Sulphur

210

mg/ 100 g

Edible parts

Raw

Wild

824

Vitamin A

37

μg/ 100 g

Edible parts

Raw

Wild

824

Vitamin B12

1.4

μg/ 100 g

Edible parts

Raw

Wild

824

Vitamin D3

22

μg/ 100 g

Edible parts

Raw

Wild

824

Vitamin E (α-tocopherol)

0.55

mg/ 100 g

Edible parts

Raw

Wild

824

Zinc

2.0

mg/ 100 g

Edible parts

Raw

Wild

824

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [635]
Bangladesh	:	Least Concern (LC)	(Version 3.1) [328]

Occurrence/Distribution:

Global	:	Comoros[861] Kenya[952] Madagascar[953] Mauritius[864] Mayotte[864] Mozambique[865] Reunion[864] Seychelles[864] South Africa[167] Tanzania[956] Andaman Island[746] Bangladesh[70] India[6] Cambodia[823] China[841] Christmas Island[957] Indonesia[449] Japan[453] Maldives[784] Pakistan[855] Philippines[958] Sri Lanka[90] Taiwan[876] East Timor[838] Vietnam[714] Yemen[959] American Samoa[960] Australia[872] Cook Islands[962] Fiji[963] French Polynesia[964] Micronesia[874] New Caledonia[966] Palau[967] Papua New Guinea[654] Samoa[960] Tonga[970] Vanuatu[971] Wallis and Futuna[972]
Bangladesh	:	Meghna river, Chandpur[5] Dakatia river, Chandpur[5] Chitra river, Jashore[793] Ramnabad river, Patuakhali[1163] Lohalia river, Patuakhali[1200] Sandha river, Pirojpur[1206] Belua river, Pirojpur[1207] Agunmukha river, Patuakhali[1208]

Habitat and Environment:

Habitat: Data not available

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, Gill net, Set bag net, Seine net, Cast net, Cast net, Cast net, Bamboo trap ^[792]
Beach seine net, Gill net, Set bag net, Seine net, Cast net, Cast net, Cast net, Bamboo trap ^[1657]
Beach seine net, Gill net, Set bag net, Seine net, Cast net, Cast net, Cast net, Bamboo trap ^[1657]
Market price:
150-200 BDT/kg (Size: 10-12 cm, Weight: 10-15 g, Place: Noakhali, Bangladesh) ^[792]