Checklist of benthic algae from beaches and rocky outcrops on the northeast coast of Pará state, Brazilian Amazonia

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ABSTRACT We present a checklist with 23 taxa of the benthic phycological flora on three beaches on the northeast coast of Pará state, in the Brazilian Amazon, a rarely surveyed area for algae. Collections were made on substrates like rocky outcrops at Salinópolis municipality, and on trunks, branches and pneumatophores of Laguncularia racemosa and artificial substrates at Marapanim municipality. Despite the limited geographic scale of the sampling, we provide ten new citations for the benthic, marine and estuarine algal taxa of the Pará state coast: six Chlorophyta (Bryopsis pennata, Cladophora coelothrix, C. conferta, Gayralia brasiliensis, Pseudorhizoclonium africanum and Ulva chaetomorphoides), two Rhodophyta (Caloglossa confusa, Centroceras gasparrinii), one Ochrophyta (Bachelotia antillarum) and one Cyanophyta (Coleofasciculus chthonoplastes).

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