Abstract Joanna Łuczyńska, Ewa Brucka-Jastrzębska - The relationship between the content of lead and cadmium in muscle tissue and the size of fish from lakes in the Olsztyn Lake District of northeast Poland
Abstract Panagiotis A. Pantazis - Protein to energy ratios in African catfish fed purified diets: is Clarias gariepinus (Burchell) an ordinary carnivore?
Abstract Jan Mazurkiewicz, Antoni Przybył, Wiesława Mroczyk - Supplementing the feed of common carp (Cyprinus carpio L.) juveniles with the BIOSAF probiotic
Abstract Stanisław Robak - Sex structure, recruitment rate, and size of maturing specimens of European eel (Anguilla anguilla (L.)) in a population from lakes in northeastern Poland
Abstract Andrzej Skrzypczak, Andrzej Mamcarz - Pikeperch (Sander lucioperca (L.)) exploitationin reference to stocking programs and the size structure of its habitats in northeastern Poland in 1951-1994
Abstract Andrzej Hutorowicz, Andrzej Kapusta, Tadeusz Krzywosz, Joanna Hutorowicz - The ichthyofauna of the dystrophic Lake Smolak (northern Poland) in light of selected physical and chemical water conditions thirty years after the conclusion of liming and fertilization
Abstract Piotr Dębowski, Stefan Dobosz, Joanna Grudniewska, Henryk Kuźmiński - Fecundity and egg size in sea trout (Salmo trutta m. trutta L.) in pond conditions
Abstract Jerzy Szypuła - Scale radius growth versus standard length growth in some fish species