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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); yersini: Named for the famour Swiss biologist and humanist Alexandre Yersin who spends much of his life in southern Viet Nam, especially around Dalat where this species was collected.
Eponymy: Alexandre Émile Jean Yersin (1863–1943) was a Swiss bacteriologist and humanist. [...] (Ref. 128868), visit book page.
More on authors: Freyhof & Serov.

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

; acqua dolce demersale. Tropical

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

Asia: River Dong Nai and River Srepok in the mountains around Dalat, Vietnam.

Size / Peso / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.5 cm SL maschio/sesso non determinato; (Ref. 95537)

Short description Chiavi di identificazione | Morfologia | Morfometria

Raggi dorsali molli (totale) : 12; Raggi anali molli: 8. Differs from its congeners in Indochina by the combination of the following characters: wide median incision in upper lip; distance between anus and anal fin origin 2.6-3.8 eye diameter; pelvic fin clearly reaching beyond anus; caudal fin deeply emarginate; body with 7-11 dark bars, wider than interspaces, regularly shaped and set, meeting their homologues on back; black bar at caudal-fin base complete, reaching dorsal and ventral midlines (Ref. 40772).

Abundant in streams and rivers with gravel or rocky substrate and high water velocities (Ref. 40772). Resistant to organic pollution and can survive in streams that flow through villages and towns and exhibit strong signs of human perturbation (Ref. 40772). Most abundant in riffles and rapids with current velocities more than 1 m/s below the surface (Ref. 40772). Found in small high gradient rivers and small mountain streams, as well (Ref. 40772). Often associated with Poropuntius sp., Annamia normani, Schistura dalatensis and Glyptothorax laosensis (Ref. 40772).

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

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

Freyhof, J. and D.V. Serov, 2001. Nemacheiline loaches from Central Vietnam with descriptions of a new genus and 14 new species (Cypriniformes: Balitoridae). Ichthyol. Explor. Freshwat. 12(2):133-191. (Ref. 40772)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 04 September 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Informazioni ulteriori

Trophic ecology
Prede
Alimentazione
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Ecology
Ecologia

Population dynamics
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Length-weight rel.
Length-length rel.
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Life cycle
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Anatomy
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Fonti Internet

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00692 (0.00310 - 0.01545), 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).

Schistura yersini Freyhof & Serov, 2001