Classification / Names
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Cypriniformes (Carps) >
Nemacheilidae (Brook loaches)
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335); wanlainensis: Named after Wan Lain Dam village where the fish were collected, and whose inhabitants have established a fish conservation zone. An adjective..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; acqua dolce demersale. Tropical
Asia: Mon Lan Chaung, a tributary of Mali Hka, in Myanmar.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 9.2 cm SL maschio/sesso non determinato; (Ref. 116725)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Raggi dorsali molli (totale) : 12; Raggi anali molli: 8. Schistura wanlainensis is distinguished from all its congeners in Southeast Asia by its unique color pattern consisting of a pale yellowish to pale grey background with 18-32 narrow, regularly shaped black bars, extending from dorsal midline and reaching downwards to below level of pectoral fin, continuous over back with contralaterals in most specimens, wider than interspaces
anteriorly, narrower than interspaces on caudal peduncle; some of anterior bars fused at their dorsal extremity. Other useful but non-unique diagnostic characters include the following: base of caudal fin with black pattern made of a vertically elongated blotch at middle of base, and a
smaller blotch at its dorsal and ventral extremities (blotches contiguous in one specimen); dorsal fin with 8½ branched rays; caudal fin forked; caudal peduncle depth 1.2-1.5 times in its length; very low dorsal and ventral crests on caudal peduncle; lips thick, fleshy; upper lip with median notch; lower lip with narrow median interruption, with numerous furrows; processus dentiformis present, feebly marked, very wide (more than half of mouth gape); and a suborbital slit present in females (males unknown but expected to have a suborbital flap) (Ref. 116725).
Inhabits Mon Lan Chaung, a large river with approximately 50 m width and very fast water flowing over a stone and boulders bottom. Syntopic with Garra cf. dulongensis, Garra sp., Neolissochilus compressus, Oreinus meridionalis, Semiplotus cirrhosus (Cyprinidae), Acanthocobitis sp., Schistura malaisei (Nemacheilidae), Amblyceps murraystuarti (Amblycipitidae), Glyptothorax sp., Oreoglanis sp. (Sisoridae) and Mastacembelus armatus (Mastacembelidae) (Ref. 116725).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Kottelat, M., 2017. A new genus and three new species of nemacheilid loaches from northern Irrawaddy drainage, Myanmar (Teleostei: Cypriniformes). Raffles Bull. Zool. 65:80-99. (Ref. 116725)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00692 (0.00311 - 0.01538), b=3.02 (2.85 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.0 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
