Počet záznamů: 1

Mortality induced by electrofishing and handling in five young-of-the-year cyprinids: effect of the fish size, species and anode size

  1. 1.
    0361236 - UBO-W 2012 RIV DE eng J - Článek v odborném periodiku
    Janáč, Michal - Jurajda, Pavel
    Mortality induced by electrofishing and handling in five young-of-the-year cyprinids: effect of the fish size, species and anode size.
    Journal of Applied Ichthyology. Roč. 27, č. 4 (2011), s. 990-994 ISSN 0175-8659
    Grant CEP: GA MŠk LC522
    Výzkumný záměr: CEZ:AV0Z60930519
    Klíčová slova: electroshock-induced mortality * stream fishes * trout * injury * growth
    Kód oboru RIV: EG - Zoologie
    Impakt faktor: 0.869, rok: 2011

    Immediate mortality induced by electrofishing and handling of young-of the-year (YOY) fish of five cyprinid species (bitterling Rhodeus amarus, chub Leuciscus cephalus, bleak Alburnus alburnus, barbel Barbus barbus, roach Rutilus rutilus) was quantified during routine YOY fish monitoring (point abundance sampling with backpack electrofisher, in situ identification and measurement). Sampled, identified and measured fish were held in screened containers immersed in the river for 5 h after electrofishing. Bleak exhibited significantly higher mortality (17%) than all other species (1–3%). Mortality decreased significantly with fish length; fish <35 mm exhibited the highest mortality. Anode size (10, 20, and 30 cm diameter) had no direct effect on mortality. Point abundance electrofishing with in situ identification and measurement is a safe method for sampling riverine YOY cyprinids.
    Trvalý link: http://hdl.handle.net/11104/0198598