Fucus evanescens is recorded for the first time in Kiel Bight (western
Baltic). It is now common at several sites in the lower zone of F. ve
siculosus. Its arrival to the area and especially its increase in abun
dance seem to be recent. Epiphyte load in late spring was significantl
y higher on F. vesiculosus (20%) than on F. evanescens (5%). The immig
ration of F. evanescens from Danish waters may be connected to the dec
line in abundance of F. vesiculosus and F. serratus in the western Bal
tic.