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Reef‐building coralline algae from the Southwest Atlantic: filling gaps with the recognition of Harveylithon (Corallinaceae, Rhodophyta) on the Brazilian coast
Author(s) -
Costa Iara Oliveira,
Jesus Priscila Barreto de,
de Jesus Tiana da Silva,
Souza Poline dos Santos,
Horta Paulo Antunes,
Nunes José Marcos de Castro
Publication year - 2019
Publication title -
journal of phycology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.85
H-Index - 127
eISSN - 1529-8817
pISSN - 0022-3646
DOI - 10.1111/jpy.12917
Subject(s) - coralline algae , biology , reef , algae , great barrier reef , temperate climate , ecology , taxonomy (biology)
The Southwest Atlantic is notable for having extensive reef areas cemented by nongeniculate coralline red algae. Based on an analysis of four genetic markers and morpho‐anatomical features, we clarify the species of Harveylithon in the tropical and warm temperate Southwest Atlantic. Species delimitation methods ( mBGD , ABGD , SPN , and PTP ), using three markers ( psb A, rbc L, and COI ), support the recognition of three new species: H. catarinense sp. nov., H. maris‐bahiensis sp. nov., and H. riosmenum sp. nov., previously incorrectly called Hydrolithon samoënse . Our findings highlight the importance of using an approach with several lines of evidence to solve the taxonomic status of the cryptic species.