Identification of `articuliths' in a unique algal bed formation from Brazil and description of Jania cabista sp. nov. (Corallinales, Rhodophyta)

Autor(es)

Tamega, Frederico T. S. ^{[1, 2]} ; Torrano-Silva, Beatriz N. ^[3] ; Oliveira, Mariana Cabral ^[3] ; Spotorno-Oliveira, Paula ^{[1, 2]} ; Calazans, Savio H. ^[2] ; Francisco Rosas-Alquicira, Edgar ^[4] ; Coutinho, Ricardo ^[2] ; Pena, Viviana ^{[5, 6]}

Afiliação do(s) autor(es)

^[1] Univ Fed Rio Grande, Inst Oceanog, Programa Posgrad Oceanol, Rio Grande, RS - Brazil

^[2] Inst Estudos Mar Almirante Paulo Moreira, Dept Oceanog, Arraial Do Cabo, RJ - Brazil

^[3] Univ Sao Paulo, Inst Biociencias, Dept Bot, Sao Paulo, SP - Brazil

^[4] Univ Mar, Inst Recursos, San Pedro Pochutla, Oaxaca - Mexico

^[5] Univ A Coruna, Fac Ciencias, Grp Bio Cost, Coruna - Spain

^[6] Univ A Coruna, Ctr Invest Cient Avanzadas CICA, Coruna - Spain

• Tipo de documento: Artigo Científico
• Fonte: PHYCOLOGIA; v. 60, n. 4, p. 283-302, JUL 4 2021.
• Citações Web of Science: 0

Resumo

A unique algal bed formation, composed largely of free-living geniculate coralline algae (articuliths), was recorded within the subtidal zone of Arraial do Cabo Bay, Brazil. The importance of these articuliths was shown by previous ecological surveys, which, using morpho-anatomical analyses, identified these algal specimens as belonging to Amphiroa beauvoisii, Jania adhaerens and J. capillacea. Cryptic diversity was recently found in Brazilian corallines and prompted the reassessment of the species diversity of the Arraial do Cabo Bay algal bed. Here we identified the species of geniculate coralline algae commonly associated with the subtidal beds of Arraial do Cabo Bay using a combination of molecular (psbA) and morpho-anatomical analyses, and compared them to closely related species described for Brazil and elsewhere. Two species belonging to the genera Amphiroa and Jania were identified as the major components of these algal beds. Our analyses suggest that these specimens belong to Amphiroa cf. exilis and to a new species of Jania, Jania cabista sp. nov. (AU)

• Processo FAPESP: 10/19234-3 - Taxonomia e filogenia da subfamília Lithophylloideae no Brasil.
• Beneficiário: Beatriz Nogueira Torrano da Silva
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/11833-3 - Diversidade e filogenia de algas vermelhas (Rhodophyta) de importância econômica e ecológica
• Beneficiário: Mariana Cabral de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular