Browsing by Subject "Spiral diatom"
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Can the presence of curved forms of the diatom Aulacoseira ambigua in the Nile (Egypt) and Vaal (South Africa) Rivers be ascribed to similar water quality conditions? (Taylor & Francis, 2018)Spiral colonies of the diatom Aulacoseira ambigua were assigned the rank of forma ( Aulacoseira ambigua f. japonica ). This spiral-shaped, colonial, centric diatom has limited geographical distribution ...