Abstract
The present study adds 19 species (15 Rhodophyta, one Chlorophyta and three Ochrophyta) to the Azorean marine macroalgal flora, increasing the current total of species recorded in this region to 521 (349 Rhodophyta, 76 Chlorophyta and 96 Ochrophyta), and showing that this isolated island group supports a relatively rich marine macroalgal flora. Some species fall within their known overall distributional range, whereas other found here represent a northern or southern extension to their known distribution in the Atlantic. Three species (Antithamnionella elegans, Gymnophycus hapsiphorus and Scytosiphon dotyi) are probable introductions to the Azores, whereas Melanothamnus pseudoforcipatus has an uncertain status. Six of the newly reported species were found as components of the intertidal algal turf samples, which justifies the need for continuing to examine turf samples as new discoveries can be anticipated.
Award Identifier / Grant number: M1420-09-5369-FSE-000002
Funding source: Xunta de Galicia
Award Identifier / Grant number: 03IN858A2019-1630129
Award Identifier / Grant number: ED481D/2017/011
Funding source: European Regional Development Fund
Award Identifier / Grant number: ACORES-01-0145-FEDER-000072
Funding source: Fundação para a Ciência e a Tecnologia
Award Identifier / Grant number: UID/BIA/00329/2013
Award Identifier / Grant number: UID/BIA/00329/2019
Award Identifier / Grant number: UID/BIA/00329/2020-2023
Funding source: Fundo Regional para a Ciência e Tecnologia
Award Identifier / Grant number: M3.1.a/F/083/2015
About the authors
Ana I. Neto was a professor at the University of Azores and since 1988 investigated marine botany and coastal ecology, using macroalgae as model organisms and the Azorean littoral communities as model systems. She was the lead scientist of the Island Aquatic Ecology SubGroup of the Azorean Biodiversity Group, and she coordinated the Herbarium AZB Ruy Telles Palhinha of DB/UAc which is an important resource for academics, students, government, private organizations, and the general public. She was actively involved in projects with regional enterprises, mainly in the areas of sustainable exploitation, biotechnology and aquaculture of marine resources. Sadly, Ana passed away in May 2021 after a whole life of valuable contributions to science.
Eva Cacabelos is a post-doctoral researcher and has extensive experience in the analysis of factors affecting littoral communities. She has participated in projects investigating the effects of invasions, climate change or anthropogenic perturbations in benthic communities, as well as related to valorization of marine resources. She is well acquainted with the methods of investigating effects of non-indigenous species in littoral systems.
Afonso C. L. Prestes is a PhD student of biology of the 3CBIO in the University of the Azores, studying the impact of invasive algae in the Azorean algal community. He has a research grant in the MIMAR + project for monitoring, control and mitigation of proliferations of marine organisms associated with human disturbances and climate change in the Macaronesian region. He has participated in several research projects involving, for instance, the implementation of the European Water Framework in the Azores archipelago.
Pilar Díaz-Tapia is a postdoctoral researcher interested in algal systematics, floristics and ecology. Her investigations using a combination of morphological and molecular approaches led to the description of several new species, the reassessment of the classification of red algal taxa and the improvement of our knowledge of the distribution of introduced algal species. A relevant number of her findings are related to the study of algal turfs, mainly from Europe and Australia.
Ignacio Moreu is a marine biologist that has been gaining considerable knowledge and experience in algal taxonomy and ecology. He shows significant experience in field sampling procedures, both at intertidal and subtidal levels. He has participated in projects involving biological invasions an anthropogenic impact on marine fauna and is nowadays gaining experience in aquaculture of marine organisms.
Acknowledgements
We thank Nuno V. Álvaro for the assistance with the images. In loving memory of Ana Neto.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: This study is a contribution to the project AZORESBIOPORTAL–PORBIOTA (ACORES-01-0145-FEDER-000072) funded through FEDER (85%) and Regional funds (15%) via Operational Programme Azores 2020. Funding was also provided from National Funds through FCT-Fundação para a Ciência e a Tecnologia, under the projects UID/BIA/00329/2013, 2015–2018 and UID/BIA/00329/2019 and UID/BIA/00329/2020–2023. EC benefitted from a post-doctoral fellowship awarded by ARDITI (Regional Agency for Development of Research, Technology and Innovation of Madeira, Project M1420-09-5369-FSE-000002). ACLP was supported by PhD grant awarded by FRCT-Fundo Regional da Ciência e Tecnologia (M3.1.a/F/083/2015). PDT was supported by Xunta de Galicia ‘Axudas de apoio à etapa de formación posdoutoral’ (grant ED481D/2017/011) and ‘Talento Senior’ (grant 03IN858A2019-1630129).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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