Paracobitis hircanica, Hircan crested loach

Paracobitis hircanica Mousavi-Sabet, Sayyadzadeh, Esmaeili, Eagderi, Patimar & Freyhof, 2015

Hircan crested loach
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Image of Paracobitis hircanica (Hircan crested loach)
Paracobitis hircanica
Photo von Mousavi-Sabet, H.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cypriniformes (Carps) > Nemacheilidae (Brook loaches)
Etymology: Paracobitis: Greek, para = the side of + Greek, kobitis, -idos = a kind of sardine; also related with the voice Greek, kobios, Latin gobius = gudgeon (Ref. 45335)hircanica: Named from the Greek name for the southern Caspian Sea region where the species occurs, Hyrcania.

Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie

; süßwasser benthopelagisch. Subtropical

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Asia: Iran (tributaries of the Gorgan River).

Größe / Gewicht / Alter

Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 10.5 cm TL Männchen/unbestimmt; (Ref. 116944)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

This species is distinguished from its congeners in the Middle East by the following characters, of which none are unique: this species is similar to P. atrakensis, P. smithi and P. vignai by lacking scales (vs. body fully covered in scales P. longicauda, P. rhadinaea and posterior flank behind dorsal-fin origin is covered by scales in P. malapterura, P. basharensis, P. molavii, P. persa, P. zabgawraensis); it differs from P. atrakensis (which occurs in the adjacent Atrak drainage) by the colour pattern of the caudal fin, rays are dark-brown or black, and have a hyaline base and a hyaline posterior margin (vs. rays hyaline with an irregular pattern of dark brown or black spots and elongated blotches often organized in 1-3 wide, irregularly shaped bars); it differs further from P. atrakensis in having a clearly emarginate caudal fin (vs. truncate or slightly emarginated), a well developed axillary pelvic lobe (vs. absent) and a fine marbled or vermiculate brown colour pattern on the flank (vs. coarse marbled); it differs from the hypogean P. smithi by having normally developed eyes (vs. no eyes), an emarginate caudal fin (vs. forked) and a dark brown colour pattern (vs. no colour pattern); differs from P. vignai by having an emarginate caudal fin (vs. forked) and a roundish posterior nare opening (vs. slit-like) (Ref. 103421).
Body shape (shape guide): elongated; Cross section: oval.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

The type locality of this species, Zarrin-Gol stream, is about 2 m wide, with substrate consisting of coarse gravel and boulders, fast-flowing and semi-transparent waters without submerged vegetations (Ref. 103421).

Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven

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Mousavi-Sabet, H., G. Sayyadzadeh, H.R. Esmaeili, S. Eaderi, R. Patimar and J. Freyhof, 2015. Paracobitis hircanica, a new crested loach from the southern Caspian Sea basin (Teleostei: Nemacheilidae). Ichthyol. Explor. Freshwat. 25(4):339-346. (Ref. 103421)

IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: nicht kommerziell
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Schätzungen auf der Grundlage von Modellen

Phylogenetischer Diversitätsindex
(Ref. 82804)
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00955 (0.00517 - 0.01764), b=2.98 (2.83 - 3.13), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophische Ebene
(Ref. 69278)
2.7   ±0.3 se; based on size and trophs of closest relatives
Widerstandsfähigkeit
(Ref. 120179)
mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei
(Ref. 59153)
Low to moderate vulnerability (34 of 100). 🛈