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Mystus alasensis  Ng & Hadiaty, 2005

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Mystus alasensis
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Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterigi (pesci con pinne raggiate) > Siluriformes (Catfish) > Bagridae (Bagrid catfishes)
Etymology: Mystus: Greek, mystax = whiskered, used by Belon in 1553 to describe all fishes with whiskers (Ref. 45335);  alasensis: Name derived from the Sungai Alas (Alas River) drainage.

Ambiente / Clima / Range Ecologia

; acqua dolce demersale.   Tropical, preferred ?

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Asia: Sungai Alas drainage in Sumatra, Indonesia.

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 10.8 cm SL maschio/sesso non determinato; (Ref. 55439)

Short description Morfologia | Morfometria

Spine dorsali (totale): 1; Raggi dorsali molli (totale): 7; Raggi anali molli: 12 - 14; Vertebre: 38 - 41. Distinguished from all other Southeast Asian congeners, except Mystus castaneus, M. impluviatus and M. nigriceps by the following combination of characters: a moderately long (29-37% SL), low adipose-fin, uniform body color, fossa on midline of the cranium not reaching to the base of the supraoccipital process and extremely long maxillary barbels that reach beyond the base of the caudal fin (Ref. 55439). Differs from M. castaneus, M. impluviatus and M. nigriceps in lacking a dark triangular mark at the base of the caudal fin. Further differs from M. nigriceps in having a longer (34.3-36.3% SL vs. 26.3-31.4), deeper (6.7-7.5% SL vs. 4.1-6.0) adipose fin and longer pelvic fins (17.6-20.2% SL vs. 13.4-16.7); and from M. castaenus and M. impluviatus in having a more gently-sloping dorsal profile of the head. Differs also from M. impluviatus in lacking (vs. presence) of fontanel on the supraoccipital and having a deeper adipose fin (6.7-7.5% SL vs. 4.7-6.0) (Ref. 55439).

Biologia     Glossario (es. epibenthic)

Oviparous, distinct pairing possibly like other members of the same family (Ref. 205).

Life cycle and mating behavior Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Ng, H.H. and R.K. Hadiaty, 2005. Two new bagrid catfish (Teleostei: Bagridae) from the Alas River drainage, northern Sumatra. Ichthyol. Explor. Freshwat. 16(1):83-92. (Ref. 55439)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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