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The food of common bream (Abramis brama L.) in a biomanipulated water supply reservoir Полный текст
2012
Zapletal, T., Mendelova Univ., Brno (Czech Republic). Ustav Zoologie, Rybarstvi, Hydrobiologie a Vcelarstvi | Mares, J., Mendelova Univ., Brno (Czech Republic). Ustav Zoologie, Rybarstvi, Hydrobiologie a Vcelarstvi | Jurajda, P., Akademie Ved, Brno (Czech Republic). Ustav Biologie Obratlovcu | Vsetickova, L., Akademie Ved, Brno (Czech Republic). Ustav Biologie Obratlovcu
Food composition of Abramis brama was studied in the shallow, meso-eutrophic Hamry reservoir (Czech Republic). Fish were sampled during the daytime in the pre-spawning period (April), the post-spawning (June), summer (July) and autumn (October) in 2011. The bream sampled comprised two main size groups: small (124-186 mm) and large (210-315 mm) standard length. Twenty specimens of each size group (except April - 40 large fish) were taken for analysis on each sampling occasion. Food composition was evaluated using gravimetric methods. Over the whole season, detritus and aquatic vegetation were the dominant dietary items taken. During summer, the diet of large bream comprised mainly aquatic vegetation. Benthic macroinvertebrates and zooplankton formed a minor part of bream diet over the whole season. Specific food habits of bream could be explained by specific conditions within the reservoir and available food resources.
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1991
Nardone, A. (Tuscia Univ., Viterbo (Italy). Istituto di Zootecnia) | Ronchi, B. | Valentini, A.
Effects of summer water temperature and food concentration on the growth of bottom cultured Japanese scallop Mizuhopecten yessoensis and the outbreak of paralytic shellfish poisoning (PSP), in the coastal area of northeastern part of Hokkaido, Japan
2009
Shinada, A.(Hokkaido. Abashiri Fisheries Experiment Station (Japan))
