Some results of flounder tagging in the Eastern Baltic

Abstract

In 1966 and 1967 tagging of flounder Platichthys flesus trachurus (Duncker) was carried out in two localities in the Eastern Baltic - north of Ventspils and south of Ventspils (Latvia). The data on the recaptures are presented. The majority of recaptures were received in the area near the tagging place during a year after their marking. The fish tagged west of the Sorve Peninsula, was recaptured mainly at Saaremaa coasts. The flounder tagged south of Ventspils during the feeding seasons 1966-1967, performed migrations towards the Irbe Strait and returned to their marking place for the late autumn. During the investigation period a comparatively small mixing between the flounders of these two tagging areas was found. The migration of flounder over the Gotland Deep was stated.