DSC_17053 'Cape' bull kelp, or rimurapa (Durvillaea poha) cut cross section through frond, showing 'spongy' tissue. Recently described and previously regarded as a variety of bull kelp that grew in wave-sheltered habitats. Common at mid-tide level on exposed southern coastlines, in a band above D. antarctica. Brighton Beach
DSC_36511 Bull kelp, or rimurapa (Durvillaea willana) showing characteristic dark chocolate coloured, stalked blades, which lack bouyant internal structure, so do not float. Low intertidal and upper subtidal zones. Brighton Beach *
DSC_3847 Bull kelp, or rimurapa (Durvillaea willana) showing characteristic dark chocolate coloured, stalked blades, which lack bouyant internal structure, so do not float. Low intertidal and upper subtidal zones. Brighton Beach