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The aim of this study was to analyze and summarize rearing conditions for larval and juvenile common barbel according to recent research. Barbel larval and juvenile stages achieve very high survival rates (95-99%) irrespective of water temperature or initial stock density. The only factor affecting survival rates during larval rearing Is diet; specifically, this refers to quality and not to the dry...
A total of 277 smolts of the migratory morphotype of the brown trout from the Gowienica River (Pomerania) was examined. The present survey was based on four fishing seasons: 1980, 1982, 1983, and 1984. The aim of this study was to determine the relationship between the body length and the scale radius and to determine the growth rate based on the back reading method.
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