Sind die bestehenden Regulierungsmaßnahmen für die Flunderfischerei in der südwestlichen Ostsee sinnvoll?

The reliability of the international minimum landing size of 25 cm for the flounder stock of ICES Sub-divisions 24 and 25 as well as national bans on landing female flounder during the spawning time is investigated on German samples taken in Sub-division 24. The results of the analyses of growth, sex ratio, the proportion of mature flounder, and yield curves show that 25 cm is a convenient regulation measure but it would be reliable to have an international ban on landing female as well as male flounder during spawning time.