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Umbra pygmaea - Eastern mudminnow

French name:  Umbre pygmée, Poisson chien
Dutch name: Amerikaanse hondsvis
Family: Umbridae
Group: Fish
Origin: North America
Habitat: freshwater
Introduction:  game/fish stocking
ISEIA Score : 8
 
Naturalization in Belgium
First observation in the wild: 1920
Invasion stage: stabilization
Spatial distribution: restricted
Invasiveness
Reproduction in the wild: yes
Dispersion potential: medium
Natural habitats: high
More on invasiveness: Standing and slow-running waters with dense vegetation, including acidic and anoxic environments.
Distribution in Belgium
Established populations
absent from district
isolated populations (1-5 localities per district)
widespread (>5 localities per district)

Impacts on Species
Predation / Herbivory: low
Competition: medium
Disease transmission: unknown
Genetic effects: low
Impacts on Ecosystems
Nutrient cycling: low
Physical alteration: low
Natural successions: low
Food web alteration: low
More on impacts: Umbra pygmaea is a low competitive species, which is faced with difficulties to reproduce in the presence of other fish species. It rarely occurs in high densities.
Data Source & References
Authors: Anseeuw Dieter, Branquart Etienne, Lieffrig François, Micha Jean-Claude, Parkinson Denis, Verreycken Hugo
Published on:  11 June 2007
References:
Crombaghs, B.H.J.M., Akkermans, R.W., Gubbels, R.E.M.B. & Hoogerwerf, G. (eds.) (2000)
Vissen in Limburgse beken. De verspreiding en ecologie van vissen in stromende wateren in Limburg.
Stichting Natuurpublicaties Limburg, Maastricht, 496 pp.
Declerck , S., Louette, G., De Bie, T. & De Meester, L. (2002)
Patterns of diet overlap between populations of non-indigenous and native fishes in shallow ponds.
Journal of Fish Biology 61 (5), 1182-1197 pp.
Nijssen, H. & De Groot, S.J. (1987)
De vissen van Nederland.
Stichting Uitgeverij Koninklijke Nederlandse Natuurhistorische Vereniging, Utrecht, 224 pp.
Pfeiffer, H.W. (1987)
Fischbestände der Wedeler Au unter besonderer Berücksichtigung des östlichen Amerikanischen Hundfisches (Umbra pygmaea 1842 De Kay).
Diplomarbeit, Universität Hamburg.
Philippart, JC. (2004)
Pêche et conservation de la nature en Région wallonne : espèces indigènes et non indigènes.
Actes du colloque 'La gestion piscicole, Natura 2000 et la directive cadre sur l'eau. Liège, Château de Colonster.
Verreycken, H. (2006)
Niet-inheemse vissoorten
From online fact sheets of the Flemish Research Institute for Nature and Forest (INBO), VLINA-project 00/11
Verreycken, H., Anseeuw, D., Van Thuyne, G., Quataert, P. & Belpaire, C. (2007)
The non-indigenous freshwater fishes of Flanders (Belgium): review, status and trends over the last decade.
Journal of Fish Biology 71 (Suppl. D): 160-172.
Verreycken, H., Geeraerts, C., Duvivier, C. & Belpaire, C. (2010)
Present status of the North American Umbra pygmaea (DeKay, 1842) (eastern mudminnow) in Flanders (Belgium) and in Europe.
Aquatic Invasions 5(1)

 
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