Bulletin of the Sea Fisheries Institute 1 (158) 2003

Scientific papers   
AGNIESZKA SZKUDLAREK-PAWE�CZYK - Early developmental stages of pikeperch in the Szczecin Lagoon: selected aspects of their biology and ecology from 1994 to 1998 3
TOMASZ WANDZEL - The food and feeding of the round goby (Neogobius melanostomus Pallas, 1811) from the Puck Bay and the Gulf of Gdańsk 23
JADWIGA WIERZBICKA and EWA SOBECKA - Hysterothylacium incurvum (Rudolphi, 1819) (Nematoda: Anisakidae) - a parasite of swordfish (Xiphias gladius L.) 41
Short communications
Maria Helena Cavaco and Gra�a Cabe�adas - Primary productivity off western and southern Portuguese waters 49
WŁODZIMIERZ GRYGIEL and ALFRED GRELOWSKI - Hydrological conditions of the southern Baltic waters in autumn 2002 and spring 2003 61
IZABELA JAB�O�SKA-BARNA and ALEKSANDER BIELECKI - Piscicola pojmanskae Bielecki 1994 (Piscicolidae, Hirudinea) reported in a new location in central Pomerania 77