Gastromyzon introrsus

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Gastromyzon introrsus Tan, 2006

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drawing shows typical species in Gastromyzontidae.

Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335);  introrsus: From the Latin adjective introrsus, meaning inward or toward the inside, referring to the occurrence of this species only from the interior river basins draining from the east side of the Crocker Range in Sabah.

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

; zoetwater demersaal; pH range: 7.7 - ?; diepteverspreiding - m (Ref. ), usually - m (Ref. ).   Tropical; 0°C -

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Point map | Introducties | Faunafri

Asia: Padas and Labuk River basins in Sabah, Malaysia.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 9.4 cm SL mannelijk/geslacht niet bekend; (Ref. 57871)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 7; Anale zachte stralen: 4; Wervels: 30 - 33. Can be distinguished from its congeners by possessing the following unique combination of characters: distinct secondary rostrum present; complete post-oral pouch present; body brown with up to 12 cream bars, head dorsum brown with thin cream reticulate pattern; subopercular groove absent; gill slit vertical; sublacrymal groove present; a truncate snout when viewed dorsally; abdomen without scales; lateral line scales 60-68; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found in unshaded fast flowing river with a substratum of large rocks and gravel (Ref. 57871).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Voornaamste referentie Upload your references | Referenties | Coördinator | Medewerkers

Tan, H.H., 2006. The Borneo suckers. Revision of the torrent loaches of Borneo (Balitoridae): Gastromyzon, Neogastromyzon). Kota Kinabalu, Sabah, Malaysia : Natural History Publications (Borneo) in association with Raffles Museum of Biodiversity Research. vii, 245 p. : ill. (some col.), maps ; 26 cm. (Ref. 57871)

Status op de Rode Lijst van het IUCN (Ref. 124695)

  Bijna bedreigd (NT) (B1ab(iii)); Date assessed: 10 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00185 - 0.01127), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  2.0   ±0.1 se; based on size and trophs of closest relatives
Weerstandsvermogen
Kwetsbaarheid (Ref. 59153):  Low vulnerability (10 of 100) .