The relationship over time between the concentrations of two steroids, singly and in combination, in a static exposure system and in the blood of three‐spined stickleback Gasterosteus aculeatus , held within the exposure system was investigated. Groups of three‐spined stickleback were exposed (nominally) to either 1000 ng l −1 17β‐oestradiol (E2), testosterone (T) or E2 and T in combination at the same concentrations for 6 day...

High‐resolution marine palynological data have been obtained from two very long sediment cores (MD952009 and MD952010) retrieved from the southern Norwegian Sea. The dinoflagellate cyst assemblages show pronounced fluctuations in composition, which correlate strongly with magnetic susceptibility records and also mimic the δ 18 O signal of the GISP2 Greenland ice‐core. If focusing on the period from 48 to 30 cal. kyr BP, this c...

The distribution of dinoflagellate cyst (dinocyst) assemblages in surface sediment samples from 677 sites of the northern North Atlantic, Arctic and sub‐Arctic seas is discussed with emphasis on the relationships with sea‐surface parameters, including sea‐ice cover, salinity and temperature of the coldest and warmest months. Difficulties in developing a circum‐Arctic data base include the morphological variation within taxa (e...