Teleostei (teleosts) >
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).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic. Subtropical
Europe: Aegean and Black Sea basins, from Struma drainage to area of Varna (Greece, Bulgaria, Turkey), Lakes Volvi and Koronia (Greece); Danube basin in Bulgaria. In Danube and Struma drainages, C. strumicae occurs together with hybridogenous, sprem-parasitic lineages, which have originated by hybridisation of C. elongatoides with C. taenia or C. tanaitica (Ref. 59043).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.5 cm SL male/unsexed; (Ref. 59043); 11.0 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Presence of a black spot at caudal base, very small or sometimes absent, rarely two small spots. Pigmentation (Gambetta's longitudinal zone of pigmentation): zone Z4 with 12-21 roundish or squarish blotches, sometimes indistinct or fused two by two; flank not pigmented below zone Z4. Two laminae circularis.
A short-lived species. Adults occur in highland and lowland water courses with little current, in springs and associated wetlands and in lakes (Ref. 26100), with sand or silt bottom (Ref. 59043). Oviparous, with distinct pairing during breeding (Ref. 205).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: of no interest
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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=0.00525 (0.00279 - 0.00987), b=3.10 (2.95 - 3.25), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Assumed Fec < 10,000).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
