Notopterus notopterus (Pallas, 1769)

Bronze featherback

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Osteoglossiformes \| Notopteridae
Synonyms	Gymnotus notopterus, Clupea synura, Mystus badgee, ... more
Common names	Common knife fish, Nožovec obecný, Pronssiteräkala, ... more

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Main reference

Roberts, T.R. 1992. (Ref. 7431)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 60.0 cm SL male/unsexed; (Ref. 7050); common length : 25.0 cm TL male/unsexed; (Ref. 4832)

Environment

Demersal; potamodromous (Ref. 51243); freshwater; brackish; pH range: 6.0 - 6.5; dH range: 3 - 8

Climate / Range

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).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal soft rays (total): 7 - 9; Anal soft rays: 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).

Found in clear streams and enters brackish waters (Ref. 4832). Inhabits standing and sluggish waters of lakes, floodplains, canals and ponds (Ref. 12693). Undertakes 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. Feeds on insects, fish (Ref. 12693), crustaceans and some young roots of aquatic plants (Ref. 6459). Active during twilight and night. Colonizes and breeds 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 important food fish in South and Southeast Asia to Borneo and Sumatra taken by all types of small-scale fishing gears (Ref. 57235).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: commercial; aquaculture: commercial; aquarium: commercial


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Biogeographic modelling \| Bio-Quiz \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| LifeMapper \| Point map

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate to high vulnerability (51 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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