Schistura madhavai, Madhava’s stream loach

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Schistura madhavai Sudasinghe, 2017

Madhava’s stream loach
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Image of Schistura madhavai (Madhava’s stream loach)
Schistura madhavai
Picture by Hiranya Sudasinghe

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

> Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
Etymology: Schistura: Greek, schizein = to divide + Greek, oura = tail; an allusion to forked caudal fins (Ref. 45335);  madhavai: Named for Madhava Meegaskumbura, professor of Molecular Biology at University of Peradeniya. A noun in the genitive case..

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

; zoet water demersaal. Tropical

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Asia: Sri Lanka.

Grootte / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL mannelijk / geslacht onbekend; (Ref. 116162)

Korte beschrijving Morfologie | Morfometrie

Dorsale zachte stralen (totaal): 11; Anale zachte stralen: 8. Schistura madhavai differs from all its congeners from peninsular India and Sri Lanka by the combination of the following characters: 8-9 wide post-dorsal bars separated by narrow, white interspaces ¼-? the width of the bars; black bar at the base of the caudal fin arched, its posterior margin vaguely indented at bases of branched caudal-fin rays 3 and 14, wider than the interspaces on the body; 8+8 branched rays on emarginate caudal fin; incomplete lateral line ending beneath the dorsal-fin base; axillary pelvic lobe absent; adpressed pelvic fin just reaching the anus; 7½ branched rays on dorsal fin; pelvic-fin origin on a vertical through the last unbranched dorsal fin ray; and suborbital flap in males absent (Ref. 116162).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Inhabits a small stream about 2 m wide, flowing through sparsely-inhabited tea plantations, at an elevation of about 1000 m above sea level and with substrate consisting of pebbles and gravel. Prefers the faster-flowing areas of the stream. Occurs syntopically with the cyprinids Devario malabaricus (Jerdon), Puntius titteya (Deraniyagala), Pethia nigrofasciata (Günther), Rasbora dandia (Valenciennes), Rasboroides rohani (Batuwita, Silva & Edirisinghe), and the osphronemid Belontia signata (Günther). The introduced guppy Poecilia reticulata Peters was also recorded from this stream (Ref. 116162).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Sudasinghe, H., 2017. Schistura madhavai, a new species of hill-stream loach from Sri Lanka, with redescription of S. notostigma (Teleostei: Nemacheilidae). Zootaxa 4311(1):96-110. (Ref. 116162)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Ernstig bedreigd (CR) (B1ab(iii)); Date assessed: 07 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

  Harmless





Gebruik door de mens

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 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).
Trofisch niveau (Ref. 69278):  3.0   ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).