DSC_7055 Bull kelp, or rimurapa (Durvillaea willana) cut cross section through frond, showing internal tissue. The characteristic dark chocolate coloured, stalked blades, lack bouyant internal structure, so do not float. Low intertidal and upper subtidal zones. Brighton Beach
DSC_3866 Bull kelp, or rimurapa, for comparison, with from left to right the fronds of (Durvillaea poha), (D. antarctica) and (D. willana). Brighton Beach *
Bull kelp around the shore of Adams Island, Aucklands Group *
