Počet záznamů: 1

The importance of surrogate habitats in lowland river floodplains for fish community composition

  1. 1.
    0332154 - UBO-W 2010 RIV US eng J - Článek v odborném periodiku
    Ryšavá-Nováková, Michaela - Ondračková, Markéta - Jurajda, Pavel
    The importance of surrogate habitats in lowland river floodplains for fish community composition.
    Fisheries Management and Ecology. Roč. 16, č. 6 (2009), s. 468-477 ISSN 0969-997X
    Grant CEP: GA MŠk LC522
    Výzkumný záměr: CEZ:AV0Z60930519
    Klíčová slova: fish community * fish recruitment * flood * rehabilitation * substitute habitats
    Kód oboru RIV: EH - Ekologie - společenstva
    Impakt faktor: 1.264, rok: 2009

    Fish community structure and reproduction success in three borrow pits located in the channelised floodplain of the River Dyje, Czech Republic were studied over 3 years. Short-term floods supported the spawning of phytophilic and phyto-lithophilic species; batch spawners capitalised on late summer flood conditions. The highest species richness of 0+ juvenile fishes occurred at sites with extended periods of flooding, at least for 2 months. Flooded vegetation was inhabited mainly by juvenile cyprinids, while 0+ percids were distributed evenly along the littoral zone. Shoreline remained bare even during higher water levels before complete inundation because of the steep banks, and therefore fish were not able to benefit from higher water levels. Borrow pits appear to function as a substitute habitat for fish and their reproduction, but only if they are properly constructed with shallow areas providing appropriate nursing conditions for 0+ fish growth and survival
    Trvalý link: http://hdl.handle.net/11104/0177484