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Celem pracy było porównanie koncentracji kadmu, cynku, manganu i niklu w filetach popularnych gatunków ryb konsumpcyjnych dostępnych na rynku polskim: sprowadzanych z hodowli prowadzonych w Azji – tilapii nilowej i pangi, jednego z gatunków ryb morskich – dziko żyjącego mintaja, oraz pochodzącego z rodzimej hodowli pstrąga tęczowego. Uzyskane wyniki wskazują, że najwyższe poziomy kadmu występują w...
The aim of this study was to determine the growth rates of pikeperch, Sander lucioperca (L.), and pike, Esox lucius L., from the Tresna Reservoir. Back-calculations were used to determine fish age. Histological pictures were used to determine the spawning success of the two species compared. The study material was comprised of 18 pikeperch females and 13 males, and 20 pike females and 12 males. The...
The aim of this study was to describe the ichthyofauna composition of the Goczałkowice Dam Reservoir based on records in fisheries logs of commercial catches conducted in this basin over a 16-year period (1986-2001). The results indicate that the Goczałkowice Reservoir was managed appropriately during this period. The dominant species in the reservoir was bream at 49.74% of the overall biomass of...
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