Sea trout (Salmo trutta L.) and salmon (Salmo salar L.) catches in the lower Odra River system as well as stocking in the years 1973-1987

Abstract

The paper presents and analyses catches of sea trout and salmon in the lower Odra River system during the period of 1973-1987. Both of the fish species had to be treated jointly for complying with the economic statistics, having been the source of information concerning the catches. The variations of catches were taken into account with regard to years, months as well as regional division. More over data were accumulated as to the stocking of the lower Odra water system with sea trout and salmon during the period of studying the catches.