Počet záznamů: 1  

Reproduction mode of European Bitterling (Rhodeus amarus, Bloch, 1782) determined through rapid oocyte counts and size determination using digital imaging

  1. 1.
    0383222 - ÚBO 2013 RIV DE eng J - Článek v odborném periodiku
    Konečná, Markéta
    Reproduction mode of European Bitterling (Rhodeus amarus, Bloch, 1782) determined through rapid oocyte counts and size determination using digital imaging.
    Journal of Applied Ichthyology. Roč. 28, č. 5 (2012), s. 806-810. ISSN 0175-8659. E-ISSN 1439-0426
    Grant CEP: GA MŠMT LC522; GA AV ČR KJB600930802
    Institucionální podpora: RVO:68081766
    Klíčová slova: bitterling * oocyte * size determibation
    Kód oboru RIV: EG - Zoologie
    Impakt faktor: 0.902, rok: 2012

    This study focuses on assessing the reproduction mode of an important model species for evolutionary and behavioural ecology by using digital image analysis: the European bitterling Rhodeus amarus (Bloch, 1782). Specifications of mode of reproduction were determined using oocyte size distribution, seasonal dynamics in mean oocyte diameter and total number of oocytes in ovary samples gained from April to July 2007. The rapid oocyte count was enabled by using LUCIA image analysis software, which also provided measurement and colour estimations of oocytes. Bitterling ovaries showed features typical for indeterminate spawners, i.e. a continuous distribution of oocyte size over the reproductive season and recruitment of new pre-vitelogenic oocytes in the second half of the reproductive season. These results are consistent with the view that the European bitterling is a batch spawning fish with indeterminate fecundity.
    Trvalý link: http://hdl.handle.net/11104/0213229

     
     
Počet záznamů: 1  

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