Diversity, distribution, and environmental drivers of coralline red algae: the major reef builders in the Southwestern Atlantic

Autor(es):Mostrar menos -

Sissini, Marina Nasri ^{[1, 2]} ; Koerich, Gabrielle ^{[1, 2, 3]} ; De Barros-Barreto, Maria Beatriz ^[4] ; Coutinho, Luana M. ^[5] ; Gomes, Fernanda P. ^[5] ; Oliveira, William ^[2] ; Costa, Iara O. ^[6] ; de Castro Nunes, Jose Marcos ^[7] ; Henriques, Maria Carolina ^[5] ; Vieira-Pinto, Talita ^[8] ; Torrano-Silva, Beatriz N. ^[8] ; Oliveira, Mariana Cabral ^[8] ; Le Gall, Line ^[9] ; Horta, Paulo Antunes ^{[1, 2]}

Afiliação do(s) autor(es)

^[1] Univ Fed Santa Catarina, Programa Posgrad Ecol, BR-88040970 Florianopolis, SC - Brazil

^[2] Univ Fed Santa Catarina, Dept Bot, Lab Ficol, BR-88040970 Florianopolis, SC - Brazil

^[3] Univ Canterbury, Sch Biol Sci, Private Bag 4800, Christchurch 8140 - New Zealand

^[4] Univ Fed Rio de Janeiro, Lab Ficol, Rua Prof Rodolpho P Rocco 211, Bloco A, BR-21941902 Rio De Janeiro, RJ - Brazil

^[5] Univ Fed Rio de Janeiro, Museu Nacl, BR-20940040 Rio De Janeiro, RJ - Brazil

^[6] Univ Estadual Feira de Santana, Programa Posgrad Bot, Av Transnordestina, BR-44031460 Feira De Santana, BA - Brazil

^[7] Univ Fed Bahia, Inst Biol, Lab Algas Marinhas LAMAR, Rua Barao de Jeremoabo S-N, BR-40170115 Salvador, BA - Brazil

^[8] Univ Sao Paulo, Inst Biociencias, Dept Bot, Rua Matao 277, BR-05508090 Sao Paulo, SP - Brazil

^[9] Sorbonne Univ, Inst Systemat Evolut Biodiversite ISYEB, Museum Natl Hist Nat, CNRS, EPHE, Univ Antilles, 57 Rue Cuvier, CP 39, F-75005 Paris - France

• Tipo de documento: Artigo Científico
• Fonte: CORAL REEFS; AUG 2021.
• Citações Web of Science: 0

Resumo

Coralline red algae (CRA) are key players in the construction and maintenance of biogenic reefs, and they have important functional roles in ecological systems in the Southwestern Atlantic (SWA). Like many other marine organisms, CRA are currently affected by global and local stressors, but little is known about their biodiversity and the environmental drivers that influence their distribution patterns in the SWA. In the present study, we quantified the species richness of CRA in six ecoregions within the SWA using DNA-based species delimitation methods. We then verified their distribution and identified the main drivers shaping the macroecological patterns of richness and beta-diversity. We found 79 phylogenetic species that belong to the three main CRA orders (Sporolithales, Corallinales, and Hapalidiales), in the tropical and warm temperate SWA. Temperature, nutrients, and water current velocity were the main environmental drivers of CRAs in the evaluated ecoregions. The Eastern Brazil ecoregion stands out due to its high richness, exclusive species, beta-diversity between ecoregions, and as a transitional zone of the SWA. The results of our study have several important practical implications with repercussions for monitoring actions and conservation planning for the coastal region. These results show that each ecoregion has unique characteristics, and the mesophotic habitat is of primary importance because it harbors species that are not found in other habitats, and because it provides structural connectivity with shallower habitats. (AU)

• Processo FAPESP: 12/05076-2 - Taxonomia e filogenia da ordem Sporolithales do Brasil
• Beneficiário: Talita Vieira Pinto
• 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
• 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