DISTRIBUTION AND ECOLOGY OF NAVICULA CLAYTONII (J.R. CARTER) M.G. KELLY, COMB. NOV. IN BRITAIN AND IRELAND

Abstract

Navicula claytonii has been widely recorded from Britain and Northern Ireland, but not from elsewhere in Europe. It is most abundant in late winter and early spring in circumneutral rivers with moderate nutrient enrichment. The implications for diatom biogeography are discussed and a mistake in the original description is corrected.

Keywords:

• Navicula
• ecology
• biogeography