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National Repository of Grey Literature 1 records found  Search took 0.00 seconds. 
Pilot study on the efficient use of ponds greater than 100 hectares
 Mrkvová, Markéta ; Jurajda, Pavel ; Adámek, Zdeněk ; Zukal, Jan
Fish distribution in carp ponds tends to be uneven as fish prefer those parts nearer the feeding sites. As such, carp usually only occupy around two thirds of the pond area. Compared with more remote parts of the pond, control sampling campaigns showed the regular occurrence of significantly larger fish at the feeding sites. Further, fish located on the feeding sites consumed cereals almost exclusively, whilst those outside the feeding sites grazed predominantly on zooplankton. Environmental parameters at the feeding sites differed from those in the surrounding area, particularly in relation to the post-feeding period. We recommend that fish farmers both increase the size of feeding sites and alternate feeding at different sites in an effort to spread the fish stock over the whole pond area, thereby better utilising natural food resources.
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