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      Marine algal flora of Graciosa Island, Azores

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          Abstract

          Background

          The macroalgal flora of Graciosa (central group of Azores archipelago) is poorly known, with only 116 species recorded so far (authors personal data). The published information reflects occasional collections from sporadic field visits to the Island. To overcome this, a thorough investigation under the Expedition “GRACIOSA/2004”, the Campaigns “PADEL/2006”, “MACROBIOLMOL/2014” and “PIMA-BALA/2017” involving sample collecting and presence data recording, was undertaken over an area of 19 km 2 encompassing littoral and sublittoral levels down to about 40 m around the Island. This paper lists the taxonomic records and provides information on species ecology and occurrence around the Island improving the knowledge of the Azorean macroalgal flora at both local and regional scales.

          New information

          A total of 1692 specimens belonging to 250 taxa of macroalgae (and including 55 taxa identified only at the genus level) are registered, comprising 166 Rhodophyta , 36 Chlorophyta and 48 Ochrophyta ( Phaeophyceae ). From these, 195 are identified to the species level (126 Rhodophyta , 31 Chlorophyta and 38 Ochrophyta ) and comprise 156 native, 20 of uncertain origin and 14 introductions to the Island. Predaea feldmannii subsp. azorica Gabriel is an Azorean endemic, whereas Codium elisabethiae O.C. Schmidt, Botryocladia macaronesica Afonso-Carrillo, Sobrino, Tittley & Neto, Phyllophora gelidioides P.Crouan & H.Crouan ex Karsakoff and Laurencia viridis Gil-Rodríguez & Haroun represent Macaronesian endemics. Seventy-nine species are newly recorded to the algal flora of the Island.

          Related collections

          Most cited references 12

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          Seven Shortfalls that Beset Large-Scale Knowledge of Biodiversity

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            The seven impediments in invertebrate conservation and how to overcome them

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              AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.

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                Author and article information

                Contributors
                Journal
                Biodivers Data J
                Biodivers Data J
                1
                urn:lsid:arphahub.com:pub:F9B2E808-C883-5F47-B276-6D62129E4FF4
                urn:lsid:zoobank.org:pub:245B00E9-BFE5-4B4F-B76E-15C30BA74C02
                Biodiversity Data Journal
                Pensoft Publishers
                1314-2836
                1314-2828
                2020
                02 October 2020
                : 8
                Affiliations
                [1 ] cE3c - Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group & Faculdade de Ciências e Tecnologia, Departamento de Biologia, Universidade dos Açores, 9500-321 Ponta Delgada, São Miguel, Açores, Portugal cE3c - Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group & Faculdade de Ciências e Tecnologia, Departamento de Biologia, Universidade dos Açores 9500-321 Ponta Delgada, São Miguel, Açores Portugal
                [2 ] CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Universidade dos Açores, 9500-321 Ponta Delgada, São Miguel, Açores, Portugal CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Universidade dos Açores 9500-321 Ponta Delgada, São Miguel, Açores Portugal
                [3 ] Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia, 9500-321 Ponta Delgada, São Miguel, Açores, Portugal Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia 9500-321 Ponta Delgada, São Miguel, Açores Portugal
                [4 ] IMAR/Okeanos – University of the Azores, Departamento de Oceanografia e Pescas, Universidade dos Açores, Rua Prof. Doutor Frederico Machado, 9901-862 Horta, Faial, Portugal IMAR/Okeanos – University of the Azores, Departamento de Oceanografia e Pescas, Universidade dos Açores, Rua Prof. Doutor Frederico Machado 9901-862 Horta, Faial Portugal
                [5 ] Universidade dos Açores, Faculdade de Ciências Agrárias, CCMMG (Centro do Clima Meteorologia e Mudanças Globais), IITA-A (Instituto de Investigação e Tecnologias Agrárias e do Ambiente), 9700-042 Angra dp Heroísmo, Terceira, Portugal Universidade dos Açores, Faculdade de Ciências Agrárias, CCMMG (Centro do Clima Meteorologia e Mudanças Globais), IITA-A (Instituto de Investigação e Tecnologias Agrárias e do Ambiente) 9700-042 Angra dp Heroísmo, Terceira Portugal
                [6 ] N/A, Odivelas, Portugal N/A Odivelas Portugal
                [7 ] Natural History Museum, Cromwell Road, London, United Kingdom Natural History Museum, Cromwell Road London United Kingdom
                Author notes
                Corresponding author: Ana I. Azevedo Neto ( ana.im.neto@ 123456uac.pt ).

                Academic editor: Anne Thessen

                Article
                57201 14140
                10.3897/BDJ.8.e57201
                7547050
                Ana I. Azevedo Neto, Manuela I. Parente, Andrea Z. Botelho, Afonso C. L. Prestes, Roberto Resendes, Pedro Afonso, Nuno V. Álvaro, David Milla-Figueras, Raul M. A. Neto, Ian Tittley, Ignacio Moreu

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                Page count
                Figures: 8, Tables: 4, References: 35
                Funding
                This work is financed by the ERDF in 85% and by regional funds in 15%, through the Operational Program Azores 2020, within the scope of the project “ACORES-01-0145-FEDER-000072”.
                Categories
                Data Paper (Biosciences)
                Azores Biota
                Plantae
                Chromista
                Aquatic biology
                Biodiversity & Conservation
                Europe

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