Nangra assamensis, Koshi Nangra

Nangra assamensis Sen & Biswas 1994

Koshi Nangra
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Image of Nangra assamensis (Koshi Nangra)
Nangra assamensis
Picture by Biswas, B.K.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfish) > Sisoridae (Sisorid catfishes) > Sisorinae
Etymology: assamensis: From its shark-like appearance, especially to the shape of the snout.

Environment: milieu / climate zone / depth range / distribution range Ökologie

; süßwasser demersal.   Subtropical

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

Asia: Ganges and Brahmaputra Rivers in India.

Size / Gewicht / Alter

Maturity: Lm ?  range ? - ? cm
Max length : 10.5 cm TL Männchen/unbestimmt; (Ref. 116904)

Kurzbeschreibung Morphologie | Morphometrie

Rückenflossenstacheln (insgesamt): 1; Rückenflossenweichstrahlen (insgesamt): 6; Wirbelzahl: 35 - 37. Dorsal fin with 6 branched rays; dorsal and pectoral-fin spines with filamentous extensions. Anal fin with 4-5 simple rays, 7-9 branched rays. Snout strongly projecting. Nasal barbel reaching only to posterior margin of orbit; maxillary barbel reaching to end of pelvic fin or to anal-fin origin; maxillary barbel membrane with narrow attachment to cheek and broad attachment to corner of mouth; mental barbels reaching posteriorly to end of head. Vent opens into pouch or pseudovent, with broad membranous opening near pelvic fin tip. Head, body and caudal peduncle slightly more elongate than other congeners (Ref. 40780).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

Hauptreferenz Upload your references | Referenzen | Koordinator | Partner

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)

IUCN Rote Liste Status (Ref. 123251)

  nicht bedroht (LC) ; Date assessed: 21 December 2009

CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

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Internet Quellen

Aquatic Commons | BHL | Cloffa | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishipedia | Fishtrace | GenBank(Genom, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia(Gehe zu, Suchen) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5312   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00603 (0.00329 - 0.01103), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Verwundbarkeit (Ref. 59153):  Low to moderate vulnerability (32 of 100) .