Alien fish species in the Czech Republic and their impact on the native fish fauna

0342413 - ÚBO 2011 RIV CZ eng J - Journal Article
Lusk, Stanislav - Lusková, Věra - Hanel, L.
Alien fish species in the Czech Republic and their impact on the native fish fauna.
Folia zoologica. Roč. 59, č. 1 (2010), s. 57-72. ISSN 0139-7893. E-ISSN 1573-1189
R&D Projects: GA MŽP SM/6/3/05
Institutional research plan: CEZ:AV0Z60930519
Keywords : introduction * translocation * invasion
Subject RIV: EH - Ecology, Behaviour
Impact factor: 0.548, year: 2010
http://www.ivb.cz/folia/59/1/8_Lusk.pdf

Over the past 150 years, the waters of the Czech Republic were stocked or invaded by a total of 41 alien fish species. The following species have become fully naturalized and produced self-sustained populations: Carassius gibelio, Pseudorasbora parva, Ameiurus nebulosus and Gasterosteus aculeatus. The documented annual average production of alien species fit for human consumption amounts to around 2 000 tonnes, i.e. 8.2 % of the annual average production of fish cultures. Considered a typical invasive alien species, Carassius gibelio heavily depressed the occurrence and numbers of indigenous Carassius carassius populations and also contributed to the decreased numbers of Tinca tinca, Leucaspius delineatus and other native cyprinid fish. P. parva and A. nebulosus show a limited impact. The introduction of C. idella was accompanied by the introduction of the tapeworm species, Bothriocephalus gowkongensis, which subsequently caused heavy losses in cultures of Cyprinus carpio.
Permanent Link: http://hdl.handle.net/11104/0185154