>
Cypriniformes (Carps) >
Cobitidae (Spined loaches)
Etymology: Cobitis: Greek, kobitis, -idos = a kind of sardine; also related with the voice Greek, kobios, Latin gobius = gudgeon (Ref. 45335); taurica: The specific epithet comes from Tauris-Taurida, the ancient Greek and Latin name of the Crimean Peninsula..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
; zoet water benthopelagisch. Temperate
Europe: Chornaya River in Crimean Peninsula, Ukraine.
A population known from lower South Bug with similar chromosome characters might represent an unnamed species (Ref. 59043).
Grootte / Gewicht / Leeftijd
Maturity: Lm ? range ? - ? cm
Max length : 9.7 cm SL mannelijk / geslacht onbekend; (Ref. 75104); 9.2 cm SL (female)
Korte beschrijving
Morfologie | Morfometrie
Dorsale stekels (totaal): 2 - 3; Dorsale zachte stralen (totaal): 6-8; Anale stekels 2-3; Anale zachte stralen: 5 - 6. Distinguished from other species by possessing the following characters: upper part of caudal-fin base with elongated narrow dark spot; males with one lamina Canestrini in the pectoral fin, usually broad, axe-shaped; more or less rounded scales with a relatively small central part devoid of cross furrows; Gambetta’s zones of pigmentation are well developed, the fourth zone with relatively small and low 15-28, usually more than 18 spots whose depth is about two times smaller than the horizontal eye diameter (the largest spots on the caudal peduncle are also noticeably smaller than the horizontal eye diameter); the suborbital spine always reaches the posterior edge of the pupil and usually goes further and in small specimens (with TL less than 6.5 cm), usually reaches the posterior edge of the eye; the outer branch of this spine usually (95.5 %) goes as far as centre of eye and often further; head moderately long and deep with a more or less straight profile; 2n=50 (5 pairs of meta-, 15 pairs of submeta-, 4 pairs of subtelo- and 1 pair of acrocentrics), NF=90 (Ref. 78640).
Found in streams with still to moderately flowing clear water, on sand to silt bottom or in dense vegetation (Ref. 59043). Oviparous, possibly with distinct pairing during breeding similar to congeners (Ref. 205). Population is threatened due to a concentrated distribution in a very limited stretch of stream which might dry up in summer (Ref. 59043). Females grow up to a maximum length of 9.1 SL (Ref. 78640).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
During courtship, 'the male follows the female and, after both enter dense vegetation (e.g. filamentous algae), the male forms a complete ring around the female's body behind the dorsal as the female releases the eggs' (Ref. 59043).
Janko, K., V.P. Vasil'ev, P. Ráb, M. Rábová, V. Slechtová and E.D. Vasil'eva, 2005. Genetic and morphological analyses of 50-chromosome spined loaches (Cobitis, Cobitidae, Pisces) from the Black Sea basin that are morphologically similar to C. taenia, with the description of a new species. Folia Zool. 54(4):405-420. (Ref. 78640)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Meer informatie
Leeftijd/GrootteGroeiLengte-gewichtLengte-lengteLengtefrequentiesMorfometrieMorfologieLarvenLarvale populatiedynamiekRekruteringAbundantieBRUVS
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaElectrophoresesErfelijkheidZiektesVerwerkingNutrientsMassaconversie
Tools
Speciale rapporten
Download XML
Internetbronnen
Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00254 - 0.01244), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Assumed Fec<1,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
