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Threats and protection of freshwater fishes in Poland
Witkowski, A. (1992). Threats and protection of freshwater fishes in Poland. Neth. J. Zool. 42(2-3): 243-259
In: Netherlands Journal of Zoology. E.J. Brill: Leiden. ISSN 0028-2960, more
Peer reviewed article  

Also published as
  • Witkowski, A. (1992). Threats and protection of freshwater fishes in Poland, in: Osse, J.W.M. et al. (Ed.) The Threatened World of Fish: Proceedings of the 7th International Ichthyology Congress, The Hague (The Netherlands), August 26-30, 1991. 42(2-3): pp. 243-259, more

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Keyword
    Fresh water

Author  Top 
  • Witkowski, A., more

Abstract
    After wold war II two fish species (Acipenser sturio and Salmo salar) became extinct in Poland. At present there are 8 most endagered species, mostly anadromous and ecologically highly specialized (Petromyzon marinus, Eudontomyzon mariae, Lampetra fluviatilis, Salmo trutta lacustris, Pelecus cultratus, Moroco percnurus, Gobio kessleri and G. albipinnatus). As much as 58.9% of fishes and lampreys are threatened to various extents. Conservation of species that are going extinct depends upon artificial spawning and stocking, with simultaneous improvement of water quality and prevention of destruction of aquatic habitats.

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