Together with collaborators in Brazil, we have just published a note describing the movement of a sei whale between a presumed winter breeding area off Brazil, and a summer/autumn feeding ground in the Falkland Islands:
Weir, C.R., Oms, G., Baracho-Neto, C.G., Wedekin, L.L. and Daura-Jorge, F.G. (2020). Migratory movement of a sei whale (Balaenoptera borealis) between Brazil and the Falkland Islands (Malvinas). Marine Mammal Science, 36: 1050–1057. DOI: 10.1111/mms.12687
The paper used photo-identification to recapture a highly-distinctive sei whale between the study areas, and is the longest such documented movement of a sei whale in the South-west Atlantic. The paper also describes some South Atlantic sei whale mark-recapture events from the 1950s to 1970s using Discovery marks deployed by whalers.
The full paper is available to view at the Marine Mammal Science website. Or, if you would like to receive a PDF copy, then please email Caroline.