A total of 324 specimens of the ommastrephid squid Todaropsis eblanae, collected from bottom
trawl surveys in the North Sea was examined. Information on seasonal length
frequency distributions and relationships of beak size to mantle length and
wet body mass from the northernmost distribution of the species is supplied.
The overall male: female ratio was 1: 0.78. Maturing males and females were
found in winter and summer, while fully mature animals were observed only in
summer. Sexual maturity in females occurred in bigger sizes than in males.
Specimens were caught in water depths between 56 and 170 m throughout the
whole investigated area except from the German Bight. This paper presents
the first biological data on T. eblanae in the North Sea derived from scientific
surveys.