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Teleostei (teleosts) > Esociformes (Pikes and mudminnows) > Umbridae (Mudminnows)
Etymology: Umbra: Latin, umbra, -ae = shadow, in the sense of phantom; due to its quick movements (Ref. 45335).
More on author: Walbaum.

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

Freshwater; benthopelagic; pH range: 6.0 - 6.5; dH range: 5 - ?; non-migratory; depth range 0 - ? m. Temperate; 5°C - 24°C (Ref. 26183); 49°N - 43°N, 9°E - 31°E

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Europe: Danube drainage from Vienna to delta; lower reaches of Dniestr drainage.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 26183); common length : 5.0 cm TL male/unsexed; (Ref. 556); max. reported age: 5 years (Ref. 59043)

Short description Identification keys | Morphology | Morphometrics

Differs from Umbra pygmaea by the lack of dark blotch at caudal base, its body and head irregularly strewn with small dark sport, and having 33-35 scales in midlateral series (Ref. 59043).

Facultative air-breathing (Ref. 126274); Adults inhabit small irrigation canals and slowly flowing and stagnant waters with dense vegetation (Ref. 26183), usually in small ditches, oxbows, backwaters and shallow lakes (Ref. 59043). Territorial in shallow pools and swamps. They feed on larger crustacean plankton and invertebrate larvae (Ref. 26183). This species is under threat due to habitat destruction, irrigation works and disappearance of shallow ditches as suitable habitats, restrictions of river inundation, pressure from introduced fish species and chemical pollution (Ref. 26183).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Female guards the brood until hatching (Ref. 26183).

Main reference Upload your references | References | Coordinator | Collaborators

Povz, M., 1995. Threatened fishes of the world: Umbra krameriWalbaum, 1792 (Umbridae). Environ. Biol. Fishes 43(3):232. (Ref. 26183)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Vulnerable (VU) (A2ce); Date assessed: 05 September 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest; aquarium: commercial

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.6329 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01023 (0.00417 - 0.02512), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.3 ±0.39 se; based on food items.

Generation time: 1.4 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (tm=1; tmax=5; K=0.79; Fec=200).

Fishing Vulnerability (Ref. 59153): Low vulnerability (17 of 100).

Umbra krameri Walbaum, 1792