Bulletin of the Sea Fisheries Institute 3 (142) 1997

Scientific papers   
MARIA KOSIOR, WŁODZIMIERZ GRYGIEL, JERZY Kuczyński, KRZYSZTOF RADTKE and Mirosław Wyszyński  - Assessment of the health state of fish of the southern Baltic; observations of externally visible symptoms of diseases  3
GUNNAR THORESSON, MART KANGUR, RIMANTAS REPECKA, TOOMAS SAAT and MARIS VITINSH - Development of a resource assessment system for Baltic coastal fish stocks with perch (Perca fluviatilis  L.)  as a model species  27
Research reports
GORZYSŁAW POLESZCZUK and STANISŁAW SITEK - Changes in the quality of the water of Lake Wicko Małe (Szczecin Lagoon) over the years 1991-1997 37
MARZENA HALUCH and KRZYSZTOF SKÓRA - Food of sea trout (Salmo trutta  m. trutta  L.) caught in the Gulf of Gdańsk in 1994-1995 (Baltic Sea)  55
JERZY SZYPUŁA, WŁODZIMIERZ GRYGIEL and Mirosław Wyszyński- Feeding of Baltic  herring and sprat in the period 1986-1996 in relation to their state and biomass  73
 Other papers
BOHDAN DRAGANIK - Recreational fishery - an alternative to commerciel fishing  85
ASFA/FAO conference at the Sea Fisheries Institute in Gdynia - Henryk Ganowiak