Some observations on the seasonal distribution of dab,Limanda limanda, in the southern North Sea
1997
Saborowski, R. | Buchholz, F.
The seasonal changes in the population structure of dab were observed in intervals of four to six weeks from January 1993 to November 1994 at a fixed station northwest of Helgoland. The sex distribution was characterized by a reduced number of males during autumn and winter. In the autumn of both years, an immigration of large females was evident. During long periods in spring and summer, the population structure remained relatively constant. The observations indicate that dab in the Helgoland region carry out a seasonal migration between coastal waters and the sampling area. Seasonal changes of the population structure occurred at a relatively slow rate.
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