(Bony tongues) > Notopteridae
(Featherbacks or knifefishes) > Notopterinae
Etymology: Notopterus: Greek, noton = back + Greek, pteron = wing, fin (Ref. 45335).
More on author: Pallas.
Environment: milieu / climate zone / depth range / distribution range
; ນ້ຳຈືດ; ນ້ຳກ່ອຍ ອາໄສຢູ່ໃກ້ໜ້າດິນໃຕ້ພື້ນທ້ອງນ້ຳ; pH range: 6.0 - 6.5; dH range: 3 - 8; ກຸ່ມຫຼືຊະນິດປາທີ່ມີການເຄື່ອນຍ້າຍພາຍໃນນ້ຳຈືດ (Ref. 51243). Tropical; 24°C - 28°C (Ref. 1672); 35°N - 10°S
Asia: Indus, Ganges-Brahmaputra, Mahanadi, Krishna, Cauvery, and other river basins in southern India; Irrawaddy, and Salween; Meklong, Chao Phraya, Mekong and virtually all coastal river basins of peninsular Thailand and Malaysia; Sumatra and Java. Has never been reported in Borneo and is not present in the Red River basin of Tonkin (North Viet Nam).
Length at first maturity / ຂະໜາດ / ນ້ຳໜັກ / Age
Maturity: Lm ?, range 15 - ? cm
Max length : 60.0 cm SL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 7050); common length : 25.0 cm TL ຕົວຜູ້/ບໍ່ມີເພດ; (Ref. 4832)
ຄີຫຼັງຂອງປາ (ຄີອ່ອນ) (ທັງໝົດ): 7-9; ຄີກົ້ນຂອງປາ: 97 - 111. Distinguishable by its plain brown adult coloration and the convex or only slightly concave dorsal head profile; juveniles (<5 cm SL) with dark bars on the whole body (Ref. 27732); preopercular scale rows 6-8 (Ref. 7431); silvery-white with numerous fine grey spots on body and head (Ref. 4832).
Obligate air-breathing (Ref. 126274); Found in clear streams and enters brackish waters (Ref. 4832). Adults inhabit standing and sluggish waters of lakes, floodplains, canals and ponds (Ref. 12693). Undertake localized lateral migrations from the Mekong River to floodplains during the flood season and back to the mainstream or other permanent water bodies during the dry season (Ref. 37770). Common in tanks throughout the greater parts of India. Feed on insects, fish (Ref. 12693), crustaceans and some young roots of aquatic plants (Ref. 6459). Active during twilight and night. Colonize and breed seasonally during rainy days and migrates back to permanent waters in dry season (Ref. 12693). Breeding takes place in stagnant or running waters in the rainy season. Eggs are laid in small clumps on submerged vegetation. A female measuring 21-25 cm usually lays 1,200-3,000 eggs. The fish is relished both in fresh and dried state. Soup made from it is reported to be given to people with measles (Ref. 7431). Of high economic importance as food fish in South and Southeast Asia to Borneo and Sumatra and taken by all types of small-scale fishing gears (Ref. 57235).
Spawning occurs at night (Ref. 1672).
Roberts, T.R., 1992. Systematic revision of the old world freshwater fish family Notopteridae. Ichthyol. Explor. Freshwat. 2(4):361-383. (Ref. 7431)
IUCN Red List Status (Ref. 125652)
Threat to humans
ການປະມົງ: ເປັນສີນຄ້າ; ການລ້ຽງສັດນ້ຳ: ເປັນສີນຄ້າ; ຕູ້ປາ: ເປັນສີນຄ້າ
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 1.0010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00617 (0.00486 - 0.00782), b=3.08 (3.01 - 3.15), in cm total length, based on LWR estimates for this species (Ref. 93245
ຊັ້ນເຂດຮ້ອນ (Ref. 69278
): 3.5 ±0.0 se; based on diet studies.
ຄວາມຢືດຢຸ່ນ (Ref. 120179
): ຂະໜາດກາງ, ປະຊາກອນຕຳ່ສຸດທີ່ໃຊ້ເວລາສອງເທົ່າ 1.4 - 4.4 ປີ (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100).
Nutrients (Ref. 124155
): Calcium = 243 [98, 675] mg/100g ; Iron = 1.18 [0.53, 2.36] mg/100g ; Protein = 16.9 [15.0, 18.8] % ; Omega3 = 0.372 [0.187, 0.736] g/100g ; Selenium = 42.1 [12.4, 147.6] μg/100g ; VitaminA = 17.1 [3.7, 82.9] μg/100g ; Zinc = 1.05 [0.55, 2.09] mg/100g (wet weight); based on nutrient studies.