Figure 4

Temporal and spatial map of water column abundance of Mesodinium rubrum (a) and cryptophytes (cells m−2) (b), integrated (0 to 25 m) chlorophyll a (Chl a) (mg m−2) (c) and integrated (0–15 m) alloxanthin (mg m−2) (d) standing stocks during the drift of Floe 3 (blue). In yellow circles the values for the regional sampling north, east, south and west of R/V Lance on 19 and 20 May.