Literature DB >> 33100838

Marine algal flora of Graciosa Island, Azores.

Ana I Azevedo Neto1, Manuela I Parente2, Andrea Z Botelho2, Afonso C L Prestes1, Roberto Resendes3, Pedro Afonso4, Nuno V Álvaro5, David Milla-Figueras4, Raul M A Neto6, Ian Tittley7, Ignacio Moreu1.   

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 km2 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. 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.

Entities:  

Keywords:  Azores; Graciosa Island; Macroalgae; endemism; introduced; native; new records; occurrence data.; uncertain

Year:  2020        PMID: 33100838      PMCID: PMC7547050          DOI: 10.3897/BDJ.8.e57201

Source DB:  PubMed          Journal:  Biodivers Data J        ISSN: 1314-2828


Introduction

Around 400 species of marine macroalgae have been recorded in the isolated mid-Atlantic Azores archipelago so far (Freitas et al. 2019). The Azorean algal flora is cosmopolitan with species shared with Macaronesia sensu lacto, North Africa, the Mediterranean Sea, Atlantic Europe and America. Overall, it shares more species with the east Atlantic flora than with the west (Tittley and Neto 2006, Wallenstein et al. 2009). Based on extensive analysis encompassing widely-dispersing phyla (as coastal fishes, echinoderms and macroalgae) and less-dispersing phyla (as brachyurans, polychaetes and gastropods), Freitas et al. (2019) suggested that the Azores should be a biogeographical entity of its own and proposed a re-definition of the Lusitanian biogeographical province, in which they consider four ecoregions: the South European Atlantic Shelf, the Saharan Upwelling, the Azores ecoregion and a new ecoregion herein named Webbnesia, which comprises the archipelagos of Madeira, Selvagens and the Canary Islands. In their paper, when comparing the Azorean algal flora to that of the new Webbnesia region, they reported that the Canary Islands, with 689 species, are by far the most diverse archipelago, followed by the Azores (405), Madeira (396) and Cabo Verde (333). The Selvagens are the least diverse one (295 species). When compared to that of other remote oceanic Islands (e.g. the Shetlands and Faroes in the colder North Atlantic and Ascension and Tristan da Cunha in the Southern Atlantic), the algal flora of the Azores can also be considered relatively rich (Tittley 2003, Neto et al. 2005, Tittley and Neto 2005, Tittley and Neto 2006, Wallenstein et al. 2009). From all Azorean Islands, São Miguel is by far the one with the largest amount of research dedicated to the study of the algal flora. The total number of algal species is at the moment 260, a number that is likely to increase due to ongoing research by authors of the present paper. Most of the remaining Islands have received less attention. To overcome this and to improve the understanding of the archipelago’s macroalgal flora, research has been conducted over the past three decades in all the Islands. Data on the Islands of Pico and Terceira are already available on the recently-published papers by Neto et al. (2020a), Neto et al. (2020b). Table 1summarises the available information at the moment.
Table 1.

Number of macroalgal species on the Azorean Islands (Neto et al. 2020b, c and authors' unpublished data).

PhyllumSanta MariaSão MiguelTerceiraGraciosaSão JorgePicoFaialFloresCorvo
Rhodophyta 68168737935142595913
Chlorophyta 20392421174116162
Ochrophyta 2853161610428164
Total11626011311662225839119
The present paper presents both physical and occurrence data and information gathered from macroalgae surveys undertaken on Graciosa (central group of the archipelago) by the Island Aquatic Research Group of the Azorean Biodiversity Centre of the University of the Azores (Link: https://ce3c.ciencias.ulisboa.pt/sub-team/island-aquatic-ecology), the MARBE, Marine Biodiversity and Environment Research Group of CIBIO-Açores at the University of the Azores (Link: http://cibio.uac.pt/en/research-groups/marbe-marine-biodiversity-and-environment) and the OKEANOS Centre of the University of the Azores (Link: http://www.okeanos.uac.pt). In these surveys, particular attention was given to the small filamentous and thin sheet-like forms that are often short-lived and fast-growing species, very difficult to identify in the wild, requiring the aid of a microscope. The paper aims to provide a practical resource for biological studies, such as systematics, diversity and conservation, biological monitoring, climate change and ecology and also for academics, students, government, private organisations and the general public.

General description

Purpose

In this contribution, we list taxonomic records for Graciosa and present general information for the occurrence of each taxon around the Island. By doing this, we are contributing to address several biodiversity shortfalls (see Cardoso et al. 2011, Hortal et al. 2015), namely, the need to catalogue the Azorean macroalgae (Linnean shortfall) and to improve the current information on their local and regional geographic distribution (Wallacean shortfall), as well as on species abundances and dynamics in space (Prestonian shortfall).

Project description

Title

Marine algal flora of Graciosa Island, Azores

Personnel

Collections were undertaken and occurrence data recorded during several years (2004-2017). The main collectors were Amine Sebti, Ana F. Ferreira, Ana I. Neto, André Amaral, Andrea Z. Botelho, Catarina Santos, Daniel Torrão, Daniela Gabriel, David Milla-Figueras, Edgar Rosas-Alquicira, Eunice Nogueira, Francisco Wallenstein, Gonçalo Graça, Inês Machado, João Brum, Jorge Fontes, José M. N. Azevedo, Ian Tittley, Karla Leon Cisneros, Manuela I. Parente, Marlene Terra, Nil Alvaréz-Segura, Nuno Álvaro, Pedro Monteiro, Pedro Raposeiro, Patrícia Madeira, Raquel Torres, Ruben Couto, Rui Sousa, Sara Peres and Sandra Medeiros. Preliminary in situ identifications were done by Ana I. Neto, Andrea Z. Botelho, Daniela Gabriel, David Milla-Figueras, Edgar Rosas-Alquicira, Francisco Wallenstein, Karla Leon Cisneros, Ian Tittley, Manuela I. Parente, Marlene Terra and Ruben Couto. Ana I. Neto, Andrea Z. Botelho, David Milla-Figueras, Edgar Rosas-Alquicira, Karla Leon Cisneros, Ian Tittley and Manuela I. Parente were responsible for the final species identification. Voucher specimen management was mainly done by Afonso Prestes, Ana I. Neto, Andrea Z. Botelho, David Milla-Figueras, Eunice Nogueira, Manuela I. Parente, Natália Cabral and Roberto Resendes.

Study area description

The Azores archipelago, located in the North Atlantic, roughly at 38°43′49″N 27°19′10″W (Fig. 1) comprises nine Islands and several Islets spread over 500 km in a WNW direction. The climate is temperate oceanic, with persistent winds, regular and abundant rainfall and high levels of relative humidity mainly during winter and autumn (Morton et al. 1998). The Islands have a restricted coastal extension due to the lack of a continental shelf and deep waters occur within a few kilometres offshore. The tidal range is small (< 2 m, see Hidrográfico 1981) and coasts are subjected to swell and surge most of the year. Shore geomorphology alternates between high cliffs and rocky cobble/boulder beaches (Borges 2004).
Figure 1.

The Azores, its location in the Atlantic and Graciosa Island highlighted in black (by Nuno V. Álvaro).

Graciosa (in black in Fig. 1) is the second smallest Island of the Azores archipelago. Located in the central group, roughly at 39°0′38″N, 27°59′1″W, about 37 km north of São Jorge and 58 km north-west of Terceira, it has an area of about 62 km2 and a maximum altitude of 402 m at the summit of the Caldeira, located at the south-western tip of the Island (Neto et al. 2009). With the exception of Serra Branca, bordered by cliffs higher than 200 m and the area between Lagoa and Barra, where the coastline consists of steep cliffs, the remaining coastline of the Island is low (below 50 m), with long stretches of cobble beaches interspaced with lava flows (forming irregular extensions of bedrock), boulder areas and the single sandy beach near the small village of Praia. Between Ponta Branca and Carapacho, there are several bays, of which the bay of Filipe is the largest in size and easily accessible by land. Rock pools are common on the bedrock shores around the Island, creating a shallow subtidal habitat with a rich diversity of marine life (Neto et al. 2009). As on the remaining Azores Islands, the intertidal and shallow subtidal rocky-shore communities of Graciosa are dominated by macroalgae (Neto et al. 2005). The high intertidal level communities are characterised by a patchy mosaic of algae (principally Linnaeus, Kützing and spp.) and a few animals (mainly chthamalid barnacles) (Fig. 2). Lower, the shore is covered by algal turfs (growth forms of either diminutive algae or diminutive forms of larger species that create a dense, compact mat 20-30 mm thick), either monospecific or composed of several species, for example, calcareous algae (e.g. and ) or by soft algae (e.g. (C.Agardh) Montagne, and ) (Fig. 3). At this level, a few limpets may be seen. The erect, corticated macrophytes (J.Ellis & Solander) K.R.Hind & G.W.Saunders, (S.G.Gmelin) Santelices & Hommersand (Fig. 4) and (S.G.Gmelin) Kützing are common in the transition zone to the subtidal, which is usually dominated by large foliose species (Neto et al. 2009). Subtidally, algal communities are characterised by associations of two or three frondose macrophytes (Fig. 5), predominantly the brown seaweeds, for example, spp., spp. and (J.V.Lamouroux) Montagne (Neto et al. 2009).
Figure 2.

The red macrophyte , a characteristic species of the Azorean high intertidal level (by the Island Aquatic Ecology Subgroup of cE3c-ABG).

Figure 3.

Algal turf at mid-shore intertidal level (by the Island Aquatic Ecology Subgroup of cE3c-ABG).

Figure 4.

Red macrophytes and at lower intertidal level (by the Island Aquatic Ecology Subgroup of cE3c-ABG).

Figure 5.

Frondose brown macrophytes ( and spp.) together with at subtidal level (by the Island Aquatic Ecology Subgroup of cE3c-ABG).

Design description

The algae, referred to in this paper, were collected during field studies at littoral and sublittoral levels down to approximately 40 m on the Island of Graciosa. Each sampling location was visited several times. On each occasion, a careful and extensive survey was undertaken to provide good coverage of the area. Both presence recording and physical collections were made by walking over the shores or by scuba diving. The specimens collected were taken to the laboratory for identification and preservation and the resulting vouchers were deposited at the AZB Herbarium Ruy Telles Palhinha and the Molecular Systematics Laboratory at the Faculty of Sciences and Technology of the University of the Azores.

Funding

This study was mainly financed by the following projects/scientific expeditions: Expedition GRACIOSA/2004, Departamento de Biologia da Universidade dos Açores Ilha do Pico, Açores, June 2004; Campaign PADEL/2006, under the project “PADEL: Património natural e desenvolvimento sustentável do litoral dos Açores: a Ilha Graciosa como caso de estudo”. 2006 - 2007. The Azores Regional Government; Campaign MACROBIOMOL/2014, under the project “MACROBIOMOL, Macroalgal biodiversity under molecular lens - towards a better understanding of North Atlantic biogeography” (PTDC/MAR/114 613/2009). 2011 - 2015. Operational Programme COMPETE (ERDF funds), FCT (UID/BIA/50027/2013) and POCI-01-0145-FEDER-006821; Campaign PIMA-BALA/2017, under the projects “PIMA (3/DRAM/2015), Elaboração do programa de implementação da Diretiva-Quadro Estratégia Marinha - Programa invasoras marinhas nos Açores” and “BALA (2/DRAM/2015), Elaboração do programa de implementação da diretiva-quadro estratégia marinha - biodiversidade dos ambientes litorais dos Açores”. ERDF funds, and the Azores Regional Government; Project “ACORES-01-0145-FEDER-000072 - AZORES BIOPORTAL – PORBIOTA. Operational Programme Azores 2020 (85% ERDF and 15% regional funds); Portuguese National Funds, through FCT –Fundação para a Ciência e a Tecnologia, within the projects UID/BIA/00329/2013, 2015- 2019, UID/BIA/00329/2020-2023 and UID/BIA/50027/2019 and POCI-01-0145-FEDER-006821; Portuguese Regional Funds, through DRCT – Direção Regional da Ciência e Tecnologia, within several projects, 2019 and 2020; CIRN/DB/UAc (Research Centre for Natural Resources, Universidade dos Açores, Departamento de Biologia); CIIMAR (Interdisciplinary Centre of Marine and Environmental Research, Porto, Portugal).

Sampling methods

Study extent

This study covers a relatively-large area, approximately 19 km2, encompassing littoral and sublittoral levels down to approximately 40 m around the Island of Graciosa (Table 2, Fig. 6).
Table 2.

Location of the sampling sites on Graciosa Island.

Location N0Location IDMunicipalityLocalityLatitude / LongitudegeodeticDatumLittoral zone
1GRA_SC_BPLSanta CruzBaixa do Pesqueiro Longo 39,123197, -28,045288 WGS84Intertidal
2GRA_SC_BVSanta CruzBarro Vermelho 39,095344, -28,026032 WGS84Intertidal
3GRA_SC_Cb1Santa CruzCarapacho|Baía 1 39,011211, -27,960628 WGS84Subtidal
4GRA_SC_CemSanta CruzCarapacho|Entre-marés 39,010819, -27,961696 WGS84Intertidal
5GRA_SC_CibSanta CruzCarapacho|Ilhéu de Baixo 39,009987, -27,942812 WGS84Subtidal
6GRA_SC_FopSanta CruzFolga|porto 39,017394, -27,999973 WGS84Intertidal
7GRA_SC_PApSanta CruzPorto Afonso|porto 39,065946, -28,06759 WGS84Intertidal
8GRA_SC_PiSanta CruzPraia|Ilhéu 39,058972, -27,954659 WGS84Intertidal
9GRA_SC_PsmSanta CruzPraia|São Mateus 39,049412, -27,969379 WGS84Intertidal
10GRA_SC_SCbfSanta CruzSanta Cruz|Baixa do Ferreiro 39,092344, -27,988639 WGS84Subtidal
11GRA_SC_SCpSanta CruzSanta Cruz|porto 39,088680, -28,008354 WGS84Intertidal
12GRA_SC_SCpfSanta CruzSanta Cruz|Ponta do Ferreiro 39,088263, -27,996325 WGS84Intertidal
13GRA_SC_SCppSanta CruzSanta Cruz|Ponta da Pesqueira 39,086693, -27,994449 WGS84Intertidal
14GRA_SC_BFSanta CruzBaía do Filipe 39,022164, -28,012561 WGS84Subtidal
15GRA_SC_Cb1Santa CruzCarapacho|Baía 1 39,011211, -27,960628 WGS84Subtidal
16GRA_SC_Cb2Santa CruzCarapacho|Baía 2 39,012446, -27,958205 WGS84Subtidal
17GRA_SC_CemSanta CruzCarapacho|Entre-marés 39,010819, -27,961696 WGS84Intertidal
18GRA_SC_CibSanta CruzCarapacho|Ilhéu de Baixo 39,009987, -27,942812 WGS84Subtidal
19GRA_SC_CtSanta CruzCarapacho|Termas 39,01245, -27,959901 WGS84Intertidal
20GRA_SC_FSanta CruzFenais 39,044619, -27,963737 WGS84Intertidal
21GRA_SC_FobSanta CruzFolga|Baía 39,016995, -28,000629 WGS84Subtidal
22GRA_SC_PAbcSanta CruzPorto Afonso|Baía das Caldeirinhas 39,065128, -28,067997 WGS84Subtidal
23GRA_SC_PApSanta CruzPorto Afonso|porto 39,065946, -28,06759 WGS84Intertidal
24GRA_SC_PBSanta CruzPonta Branca 39,020325, -28,031507 WGS84Subtidal
25GRA_SC_PblSanta CruzPraia|Baía da Lagoa 39,059392, -27,975943 WGS84Intertidal
26GRA_SC_PpSanta CruzPraia|porto 39,052321, -27,966435 WGS84Subtidal
27GRA_SC_SCbSanta CruzSanta Cruz|Barra 39,088431, -28,005052 WGS84Subtidal
28GRA_SC_SCbaSanta CruzSanta Cruz|Barra-Anel 39,088456, -28,001856 WGS84Intertidal
29GRA_SC_SCbaSanta CruzSanta Cruz|Barra-Anel 39,088694, -28,001464 WGS84Subtidal
30GRA_SC_SCbfSanta CruzSanta Cruz|Baía da Fonte 39,080207, -27,98857 WGS84Subtidal
31GRA_SC_SCbscSanta CruzSanta Cruz|Baía de Santa Catarina 39,087896, -27,998773 WGS84Intertidal
32GRA_SC_SCbsvSanta CruzSanta Cruz|Baía Senhora da Vitória 39,071636, -28,067268 WGS84Intertidal
33GRA_SC_SCpbSanta CruzSanta Cruz|Ponta da Barca 39,089915, -27,995677 WGS84Subtidal
34GRA_SC_SCtSanta CruzSanta Cruz|Terreiros 39,092024, -28,013401 WGS84Intertidal
35GRA_SC_SCpbSanta CruzSanta Cruz|Ponta da Barca 39,089915, -27,995677 WGS84Intertidal
36GRA_SC_BVSanta CruzBarro Vermelho 39,095344, -28,026032 WGS84Intertidal
37GRA_SC_CpSanta CruzCarapacho|Ponta 39,011703, -27,955194 WGS84Intertidal
38GRA_SC_PApSanta CruzPorto Afonso|porto 39,065946, -28,06759 WGS84Intertidal
39GRA_SC_SCapSanta CruzSanta Cruz|Atrás do porto 39,09, -28,01 WGS84Intertidal
40GRA_SC_BBSanta CruzBaixa do Badejo 39,021049, -27,94005 WGS84Subtidal
41GRA_SC_BPLpfSanta CruzBaixa do Pesqueiro Longo|Picos de Fora 39,02105, -28,047544 WGS84Subtidal
42GRA_SC_BVSanta CruzBarro Vermelho 39,02105, -28,0285 WGS84Subtidal
43GRA_SC_BVbpcnSanta CruzBarro Vermelho|Baixa do Pintado|Costa Norte 39,02105, -28,03465 WGS84Subtidal
44GRA_SC_CibSanta CruzCarapacho|Ilhéu de Baixo 39,009987, -27,942812 WGS84Subtidal
45GRA_SC_CprSanta CruzCarapacho|Ponta da Restinga 39,017723, -27,946526 WGS84Subtidal
46GRA_SC_IBSanta CruzIlhéu da Baleia 39,095601, -28,046544 WGS84Subtidal
47GRA_SC_IPSanta CruzIlhéu da Praia 39,055066, -27,957481 WGS84Subtidal
48GRA_SC_PBSanta CruzPonta Branca 39,020325, -28,031507 WGS84Subtidal
49GRA_SC_SCbfSanta CruzSanta Cruz|Baixa do Ferreiro 39,092344, -27,988639 WGS84Subtidal
50GRA_SC_SCpbSanta CruzSanta Cruz|Ponta da Barca 39,089915, -27,995677 WGS84Subtidal
Figure 6.

Sampling locations around Graciosa Island (by Nuno V. Álvaro).

Sampling description

Intertidal collections were made during low tide by walking over the shores. Subtidal collections were made by scuba diving around the area. Sampling involved specimen collecting and species-presence recording. For the former, at each location, samples were obtained by scraping (Fig. 7) one or two specimens of all different species found into labelled bags. Species-recording data were gathered by registering all species present in the sampled locations visited (Fig. 8). Complementary data, for example, shore level (high, mid, low), orientation and type of substrate (bedrock, boulders, cobbles, mixed), habitat (tide pool, open rock, gully, crevice, cave) were also recorded.
Figure 7.

Collecting macroalgae at the rocky intertidal (by the Island Aquatic Ecology Subgroup of cE3c-ABG) .

Figure 8.

Quantitative recording of the presence and coverage of macroalgal species at the intertidal rocky habitat (by the Island Aquatic Ecology Subgroup of cE3c-ABG).

Quality control

Each sampled taxon was identified by trained taxonomists and involved morphological and anatomical observations of whole specimens by eye or of slide preparations under the microscope for the diagnostic features described in literature.

Step description

Specimens were brought back to the laboratory, sorted and studied following standard procedures used in macroalgae identification. Species identification was based on morphological and anatomical characters and reproductive structures. For small and simple thalli, this required the observation of the entire thallus with the naked eye and/or using dissecting and compound microscopes. For larger and more complex algae, investigation of the thallus anatomy required histological preparations (longitudinal and transverse sections) for the observation of cells, reproductive structures and other diagnostic characters. As the Azorean algal flora has representatives from several geographical regions, often causing difficulty in identification, floras and keys for the North Atlantic, Tropical Atlantic and Western Mediterranean were used (e.g. Schmidt 1931, Taylor 1967, Taylor 1978, Levring 1974, Dixon and Irvine 1977, Lawson and John 1982, Irvine 1983, Gayral and Cosson 1986, Fletcher 1987, Afonso-Carrillo and Sansón 1989, Burrows 1991, Boudouresque et al. 1992, Cabioc'h et al. 1992, Maggs and Hommersand 1993, Irvine and Chamberlain 1994, Brodie et al. 2007, Lloréns et al. 2012 and Rodríguez-Prieto et al. 2013). For more critical and taxonomically-difficult taxa, specimens were taken to the Natural History Museum (London) for comparison with collections there. A reference collection was made for all collected specimens by assigning them a herbarium code number and depositing them at the AZB Herbarium Ruy Telles Palhinha and the Molecular Systematics Laboratory, University of Azores. Depending on the species and on planned further research, different types of collections were made, namely (i) liquid collections using 5% buffered formaldehyde seawater and then replacing it by the fixing agent Kew (Bridsen and Forman 1999); (ii) dried collections, either by pressing the algae (most species) as described by Gayral and Cosson (1986) or by letting them air-dry (calcareous species); and (iii) silica gel collections for molecular study. Nomenclatural and taxonomic status used here follow (Guiry and Guiry 2020). The database was organised on FileMaker Pro.

Geographic coverage

Description

Graciosa Island, Azores, Macaronesia, Portugal (approximately 39°0′38″N, 27°59′1″W).

Coordinates

39.002 and 39.104 Latitude; -28.076 and -27.927 Longitude.

Taxonomic coverage

All macroalgae were identified to genus or species level. In total, 250 taxa were identified belonging to 31 orders and 66 families, distributed by the phyla (17 orders and 41 families), (4 orders and 9 families) and (10 orders and 16 families).

Temporal coverage

Living time period: 2004 - 2017.

Notes

The sampling was performed on several occasions in the period between 2004 and 2017.

Collection data

Collection name

AZB | Marine macroalgae collection of Graciosa Island (Azores) – Expedition GRACIOSA/2004; AZB | Marine macroalgae collection of Graciosa Island (Azores) – Project PADEL; AZB | Marine macroalgae collection of Graciosa Island (Azores) – Occasional sampling; Marine macroalgae collection of Graciosa Island (Azores)-Project MACROBIOMOL; Marine macroalgae collection of Graciosa Island (Azores)-Campaign PIMA/BALA; Marine macroalgae occurrence in Graciosa Island (Azores) – Project PADEL

Collection identifier

5ee0202d-c659-436f-9b78-664df8e2791d; 915baa3f-e5b0-4673-ba80-00c05420e1ef; c1904e12-0389-4e52-b78d-8cd18942fd3d; dc0e952e-51be-4677-8789-a02e57869e7a; fc35e5ae-2143-4b62-87af-ede8db82fc2c; e29a0327-dcd3-4626-831a-4606c7862220

Parent collection identifier

AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores; AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores; AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores; MACROBIOMOL Macroalgae collection, Faculty of Sciences and Technology of the University of the Azores; PIMA/BALA Macroalgae collection, Faculty of Sciences and Technology of the University of the Azores; AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores.

Specimen preservation method

Air-dry, Dried and pressed; Liquid (Formalin; fixing agent Kew), Silica.

Curatorial unit

AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores.

Usage rights

Use license

Creative Commons Public Domain Waiver (CC-Zero)

Data resources

Data package title

Marine algal (seaweed) flora of Graciosa Island, Azores

Resource link

http://ipt.gbif.pt/ipt/resource?r=graciosa_seaweed_flora&v=1.9

Alternative identifiers

http://ipt.gbif.pt/ipt/resource?r=graciosa_seaweed_flora; https://doi.org/10.15468/uxjpmx

Number of data sets

1

Data set 1.

Data set name

Marine algal (seaweed) flora of Graciosa Island, Azores

Data format

Darwin Core Archive

Number of columns

49

Download URL

http://ipt.gbif.pt/ipt/resource?r=graciosa_seaweed_flora&v=1.9

Data format version

1.6

Description

This data paper presents both physical and occurrence data from macroalgal surveys undertaken on Graciosa Island between 2004 and 2017 (Neto et al. 2020c. The dataset submitted to GBIF is structured as a sample event dataset, with two tables: event (as core) and occurrences. The data in this sampling event resource have been published as a Darwin Core Archive (DwCA), which is a standardised format for sharing biodiversity data as a set of one or more data tables. The core data table contains 50 records (eventID). The extension data table has 1692 occurrences. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated in the IPT link. This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for downloading in the downloads section.

Additional information

This paper accommodates the 1692 specimens of macroalgae recorded from Graciosa Island in 250 taxa with 195 confirmed species and 55 taxa identified only to genus level. The confirmed species (Tables 3, 4) comprise 126 , 31 and 38 (). Of these, 79 species are newly recorded to the algal flora of the Island (47 , 10 and 22 ). Most species are native, including the Azorean endemic Gabriel and the Macaronesian endemics Afonso-Carrillo, Sobrino, Tittley & Neto, P.Crouan & H.Crouan ex Karsakoff, Gil-Rodríguez & Haroun and O.C. Schmidt. Fourteen species are introductions to the algal flora and 20 have an uncertain status.
Table 3.

Macroalgae species from Graciosa Island, with information on their relative abundance, origin and status.

Phylum Species (Accepted Name) Number of records Establishment Means OccurrenceRemarks
Chlorophyta Anadyomene saldanhae A.B.Joly & E.C.Oliveira1NativeNew record
Chlorophyta Bryopsis cupressina J.V.Lamouroux2Native
Chlorophyta Bryopsis hypnoides J.V.Lamouroux9Native
Chlorophyta Bryopsis plumosa (Hudson) C.Agardh9Native
Chlorophyta Chaetomorpha linum (O.F.Müller) Kützing1Native
Chlorophyta Chaetomorpha mediterranea (Kützing) Kützing1NativeNew record
Chlorophyta Chaetomorpha pachynema (Montagne) Kützing27Native
Chlorophyta Cladophora albida (Nees) Kutzing5Native
Chlorophyta Cladophora coelothrix Kützing1Native
Chlorophyta Cladophora conferta P.Crouan & H.Crouan4Native
Chlorophyta Cladophora laetevirens (Dillwyn) Kützing1Uncertain
Chlorophyta Cladophora liebetruthii Grunow8Native
Chlorophyta Cladophora prolifera (Roth) Kützing15Native
Chlorophyta Codium adhaerens C. Agradh24Native
Chlorophyta Codium decorticatum (Woodward) M.Howe1NativeNew record
Chlorophyta Codium elisabethiae O.C.Schmidt2Macaronesian endemismNew record
Chlorophyta Codium fragile subsp. fragile (Suringar) Hariot1IntroducedNew record
Chlorophyta Codium taylorii P.C. Silva1NativeNew record
Chlorophyta Codium vermilara (Olivi) Delle Chiaje11NativeNew record
Chlorophyta Derbesia tenuissima (Moris & De Notaris) P.Crouan & H.Crouan5Uncertain
Chlorophyta Lychaete pellucida (Hudson) M.J.Wynne5Native
Chlorophyta Microdictyon umbilicatum (Velley) Zanardini11NativeNew record
Chlorophyta Phyllodictyon anastomosans (Harvey) Kraft & M.J.Wynne5NativeNew record
Chlorophyta Ulva clathrata (Roth) C.Agardh10Native
Chlorophyta Ulva compressa Linnaeus19Native
Chlorophyta Ulva intestinalis Linnaeus4Native
Chlorophyta Ulva linza Linnaeus1NativeNew record
Chlorophyta Ulva prolifera O.F.Müller1Native
Chlorophyta Ulva rigida C.Agardh37Native
Chlorophyta Valonia macrophysa Kützing3Native
Chlorophyta Valonia utricularis (Roth) C.Agardh2Native
Ochrophyta Ascophyllum nodosum (Linnaeus) Le Jolis2Native
Ochrophyta Bachelotia antillarum (Grunow) Gerloff5Native
Ochrophyta Carpomitra costata (Stackhouse) Batters6NativeNew record
Ochrophyta Cladostephus spongiosum (Hudson) C.Agardh15NativeNew record
Ochrophyta Colpomenia sinuosa (Mertens ex Roth) Derbès & Solier39NativeNew record
Ochrophyta Cutleria multifida (Turner) Greville1Uncertain
Ochrophyta Cystoseira compressa (Esper) Gerloff & Nizamuddin12NativeNew record
Ochrophyta Cystoseira humilis Schousboe ex Kützing8NativeNew record
Ochrophyta Dictyopteris polypodioides (A.P.de Candolle) J.V.Lamouroux10NativeNew record
Ochrophyta Dictyota bartayresiana J.V.Lamouroux1NativeNew record
Ochrophyta Dictyota dichotoma (Hudson) J.V.Lamouroux11Native
Ochrophyta Dictyota dichotoma var. intricata (C.Agardh) Greville1NativeNew record
Ochrophyta Dictyota fasciola (Roth) J.V.Lamouroux2NativeNew record
Ochrophyta Ectocarpus siliculosus (Dillwyn) Lyngbye1UncertainNew record
Ochrophyta Feldmannia irregularis (Kützing) Hamel4NativeNew record
Ochrophyta Feldmannia paradoxa (Montagne) Hamel4NativeNew record
Ochrophyta Fucus spiralis Linnaeus15Uncertain
Ochrophyta Halopteris filicina (Grateloup) Kützing15Native
Ochrophyta Halopteris scoparia (Linnaeus) Sauvageau24Native
Ochrophyta Hydroclathrus clathratus (C.Agardh) M.Howe in N.L.Britton & C.F.Millspaugh2NativeNew record
Ochrophyta Hydroclathrus tilesii (Endlicher) Santiañez & Wynne9IntroducedNew record
Ochrophyta Laminaria ochroleuca Bachelot de la Pylaie9NativeNew record
Ochrophyta Leathesia marina (Lyngbye) Decaisne4Uncertain
Ochrophyta Lobophora variegata (J.V.Lamouroux) Womersley ex E.C.Oliveira3NativeNew record
Ochrophyta Myrionema strangulans Greville3NativeNew record
Ochrophyta Nemoderma tingitanum Schousboe ex Bornet4Native
Ochrophyta Padina pavonica (Linnaeus) Thivy14Native
Ochrophyta Papenfussiella kuromo (Yendo) Inagaki16Introduced
Ochrophyta Petalonia binghamiae (J.Agardh) K.L.Vinogradova14Introduced
Ochrophyta Ralfsia verrucosa (Areschoug) Areschoug 1NativeNew record
Ochrophyta Sargassum cymosum C.Agardh5Native
Ochrophyta Sargassum desfontainesii (Turner) C.Agardh1NativeNew record
Ochrophyta Sargassum furcatum Kützing10NativeNew record
Ochrophyta Sphacelaria cirrosa (Roth) C.Agardh5Native
Ochrophyta Sphaerotrichia divaricata (C.Agardh) Kylin3UncertainNew record
Ochrophyta Taonia atomaria (Woodward) J.Agardh4NativeNew record
Ochrophyta Treptacantha abies-marina (S.G.Gmelin) Kützing25Native
Ochrophyta Zonaria tournefortii (J.V.Lamouroux) Montagne27Native
Rhodophyta Acrosorium ciliolatum (Harvey) Kylin11Native
Rhodophyta Aglaothamnion bipinnatum (P.Crouan & H.Crouan) Feldmann & G.Feldmann3NativeNew record
Rhodophyta Aglaothamnion cordatum (Børgesen) Feldmann-Mazoyer5Introduced
Rhodophyta Aglaothamnion tenuissimum (Bonnemaison) Feldmann-Mazoyer5Uncertain
Rhodophyta Ahnfeltiopsis devoniensis (Greville) P.C.Silva & DeCew6Native
Rhodophyta Amphiroa beauvoisii J.V.Lamouroux1Native
Rhodophyta Amphiroa cryptarthrodia Zanardini2Native
Rhodophyta Amphiroa fragilissima (Linnaeus) J.V.Lamouroux2NativeNew record
Rhodophyta Amphiroa rigida J.V.Lamouroux3NativeNew record
Rhodophyta Anotrichium furcellatum (J.Agardh) Baldock1Uncertain
Rhodophyta Antithamnion diminuatum Wollaston7Introduced
Rhodophyta Antithamnionella spirographidis (Schiffner) E.M.Wollaston1Introduced
Rhodophyta Asparagopsis armata Harvey14Introduced
Rhodophyta Asparagopsis armata Harvey, phase Falkenbergia rufolanosa (Harvey) F.Schmitz2Introduced
Rhodophyta Asparagopsis taxiformis (Delile) Trevisan6Native
Rhodophyta Asteromenia peltata (W.R.Taylor) Huisman & A.J.K.Millar5NativeNew record
Rhodophyta Bornetia secundiflora (J.Agardh) Thuret1Native
Rhodophyta Botryocladia macaronesica Afonso-Carrillo, Sobrino, Tittley & Neto1Macaronesian endemismNew record
Rhodophyta Callithamnion corymbosum (Smith) Lyngbye13Native
Rhodophyta Callithamnion granulatum (Ducluzeau) C.Agardh1NativeNew record
Rhodophyta Callithamnion tetragonum (Withering) S.F.Gray4NativeNew record
Rhodophyta Callithamnion tetricum (Dillwyn) S.F.Gray2NativeNew record
Rhodophyta Carradoriella denudata (Dillwyn) A.M.Savoie & G.W.Saunders8Uncertain
Rhodophyta Carradoriella elongata (Hudson) A.M.Savoie & G.W.Saunders17Native
Rhodophyta Catenella caespitosa (Withering) L.M.Irvine1Native
Rhodophyta Caulacanthus ustulatus (Mertens ex Turner) Kützing7Uncertain
Rhodophyta Centroceras clavulatum (C.Agardh) Montagne16Native
Rhodophyta Ceramium botryocarpum A.W.Griffiths ex Harvey1NativeNew record
Rhodophyta Ceramium ciliatum (J.Ellis) Ducluzeau10Native
Rhodophyta Ceramium codii (H.Richards) Mazoyer3NativeNew record
Rhodophyta Ceramium diaphanum (Lightfoot) Roth12Native
Rhodophyta Ceramium virgatum Roth31Native
Rhodophyta Champia parvula (C.Agardh) Harvey2NativeNew record
Rhodophyta Chondracanthus acicularis (Roth) Fredericq17Native
Rhodophyta Chondracanthus teedei (Mertens ex Roth) Kützing10NativeNew record
Rhodophyta Chondria coerulescens (J.Agardh) Sauvageau4Uncertain
Rhodophyta Chondria dasyphylla (Woodward) C.Agardh41Uncertain
Rhodophyta Corallina ferreyrae E.Y.Dawson, Acleto & Foldvik6NativeNew record
Rhodophyta Cryptonemia palmetta (S.G.Gmelin) Woelkering, G.Furnari, Cormaci & J.McNeill2NativeNew record
Rhodophyta Cryptopleura ramosa (Hudson) L.Newton11Native
Rhodophyta Dasya caraibica Børgesen2Native
Rhodophyta Dasya corymbifera J.Agardh4Native
Rhodophyta Dasya hutchinsiae Harvey4Native
Rhodophyta Dermocorynus dichotomus (J.Agardh) Gargiulo, M.Morabito & Manghisi21Native
Rhodophyta Ellisolandia elongata (J.Ellis & Solander) K.R.Hind & G.W.Saunders23Native
Rhodophyta Erythrocystis montagnei (Derbès & Solier) P.C.Silva7Native
Rhodophyta Gaillona hookeri (Dillwyn) Athanasiadis3NativeNew record
Rhodophyta Gastroclonium reflexum (Chauvin) Kützing1Native
Rhodophyta Gelidium arbuscula Bory ex Børgesen4NativeNew record
Rhodophyta Gelidium corneum (Hudson) J.V.Lamouroux3NativeNew record
Rhodophyta Gelidium microdon Kützing17Native
Rhodophyta Gelidium pusillum (Stackhouse) Le Jolis12Native
Rhodophyta Gelidium spinosum (S.G.Gmelin) P.C.Silva12Native
Rhodophyta Gigartina pistillata (S.G.Gmelin) Stackhouse3Native
Rhodophyta Grateloupia filicina (J.V.Lamouroux) C.Agardh10Native
Rhodophyta Griffithsia phyllamphora J.Agardh7NativeNew record
Rhodophyta Gymnogongrus crenulatus (Turner) J.Agardh8Native
Rhodophyta Gymnogongrus griffithsiae (Turner) C.Martius19Native
Rhodophyta Gymnothamnion elegans (Schousboe ex C.Agardh) J.Agardh1Native
Rhodophyta Halarachnion ligulatum (Woodward) Kützing1NativeNew record
Rhodophyta Halurus equisetifolius (Lightfoot) Kützing3NativeNew record
Rhodophyta Halurus flosculosus (J.Ellis) Maggs & Hommersand7Native
Rhodophyta Herposiphonia secunda (C.Agardh) Ambronn7Native
Rhodophyta Heterosiphonia crispella (C.Agardh) M.J.Wynne10Native
Rhodophyta Hildenbrandia crouaniorum J.Agardh3NativeNew record
Rhodophyta Hypnea arbuscula P.J.L.Dangeard2Native
Rhodophyta Hypnea musciformis (Wulfen) J.V.Lamouroux25Uncertain
Rhodophyta Hypnea spinella (C.Agardh) Kützing10NativeNew record
Rhodophyta Hypoglossum heterocystideum (J.Agardh) J.Agardh4IntroducedNew record
Rhodophyta Jania capillacea Harvey2Native
Rhodophyta Jania longifurca Zanardini11Uncertain
Rhodophyta Jania pedunculata var. adhaerens (J.V.Lamouroux) A.S.Harvey, Woelkerling & Reviers2NativeNew record
Rhodophyta Jania pumila J.V.Lamouroux2Native
Rhodophyta Jania rubens (Linnaeus) J.V.Lamouroux5Native
Rhodophyta Jania virgata (Zanardini) Montagne4Uncertain
Rhodophyta Kallymenia reniformis (Turner) J.Agardh2NativeNew record
Rhodophyta Laurencia dendroidea J.Agardh4Introduced
Rhodophyta Laurencia minuta Vandermeulen, Garbary & Guiry1Introduced
Rhodophyta Laurencia obtusa (Hudson) J.V.Lamouroux1Native
Rhodophyta Laurencia pyramidalis Bory ex Kützing12NativeNew record
Rhodophyta Laurencia tenera C.K.Tseng1NativeNew record
Rhodophyta Laurencia viridis Gil-Rodríguez & Haroun4Macaronesian endemism
Rhodophyta Leptosiphonia brodiei (Dillwyn) A.M.Savoie & G.W.Saunders1Uncertain
Rhodophyta Liagora distenta (Mertens ex Roth) J.V.Lamouroux7NativeNew record
Rhodophyta Liagora viscida (Forsskål) C.Agardh3NativeNew record
Rhodophyta Lithophyllum incrustans Philippi1NativeNew record
Rhodophyta Lomentaria articulata (Hudson) Lyngbye22Native
Rhodophyta Melanothamnus harveyi (Bailey) Díaz-Tapia & Maggs4Introduced
Rhodophyta Meredithia microphylla (J.Agardh) J.Agardh8NativeNew record
Rhodophyta Mesophyllum expansum (Philippi) Cabioch & M.L.Mendoza1Native
Rhodophyta Mesophyllum lichenoides (J.Ellis) Me.Lemoine3NativeNew record
Rhodophyta Nemalion elminthoides (Velley) Batters19NativeNew record
Rhodophyta Nitophyllum punctatum (Stackhouse) Greville1NativeNew record
Rhodophyta Osmundea hybrida (A.P.de Candolle) K.W.Nam1Native
Rhodophyta Osmundea oederi (Gunnerus) G.Furnari5NativeNew record
Rhodophyta Osmundea pinnatifida (Hudson) Stackhouse10Native
Rhodophyta Osmundea truncata (Kützing) K.W.Nam & Maggs23Native
Rhodophyta Palisada patentiramea (Montagne) Cassano, Sentíes, Gil-Rodríguez & M.T.Fujii2NativeNew record
Rhodophyta Peyssonnelia squamaria (S.G.Gmelin) Decaisne ex J.Agardh4Native
Rhodophyta Phyllophora crispa (Hudson) P.S.Dixon5NativeNew record
Rhodophyta Phyllophora gelidioides P.Crouan & H.Crouan ex Karsakoff1Macaronesian endemism
Rhodophyta Phymatolithon lenormandii (Areschoug) Adey1NativeNew record
Rhodophyta Platoma cyclocolpum (Montagne) F.Schmitz13NativeNew record
Rhodophyta Pleonosporium borreri (Smith) Nägeli15Native
Rhodophyta Plocamium cartilagineum (Linnaeus) P.S.Dixon13Native
Rhodophyta Polysiphonia ceramiiformis P.Crouan & H.Crouan1NativeNew record
Rhodophyta Polysiphonia stricta (Mertens ex Dillwyn) Greville1Native
Rhodophyta Predaea feldmannii subsp. azorica Gabriel7Azorean endemism
Rhodophyta Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand44Native
Rhodophyta Pterothamnion crispum (Ducluzeau) Nägeli1Native
Rhodophyta Ptilothamnion pluma (Dillwyn) Thuret2Uncertain
Rhodophyta Rhodophyllis divaricata (Stackhouse) Papenfuss1NativeNew record
Rhodophyta Rhodymenia holmesii Ardissone7Native
Rhodophyta Rhodymenia pseudopalmata (J.V.Lamouroux) P.C.Silva12NativeNew record
Rhodophyta Schizymenia apoda (J.Agardh) J.Agardh3Native
Rhodophyta Scinaia interrupta (A.P.de Candolle) M.J.Wynne30Native
Rhodophyta Sphaerococcus coronopifolius Stackhouse7NativeNew record
Rhodophyta Spyridia filamentosa (Wulfen) Harvey3NativeNew record
Rhodophyta Stypopodium zonale (J.V.Lamouroux) Papenfuss2NativeNew record
Rhodophyta Symphyocladia marchantioides (Harvey) Falkenberg5Introduced
Rhodophyta Vertebrata fruticulosa (Wulfen) Kuntze12Native
Rhodophyta Vertebrata hypnoides (Welwitsch) Kuntze4Uncertain
Rhodophyta Vertebrata reptabunda (Suhr) Díaz-Tapia & Maggs5Uncertain
Rhodophyta Vertebrata tripinnata (Harvey) Kuntze2Native
Rhodophyta Xiphosiphonia pennata (C.Agardh) Savoie & G.W.Saunders1Native
Rhodophyta Xiphosiphonia pinnulata (Kützing) Savoie & G.W.Saunders2Introduced
Rhodophyta Yuzurua poiteaui (J.V.Lamouroux) Martin-Lescanne5NativeNew record
Table 4.

Main taxonomic figures with information on the species origin and status.

PhyllumOrderFamilySpecimens NumberTotal taxaTotal speciesNativeIntroducedUncertainMacaronesian endemismAzorean endemismNew record
Rhodophyta 174110721661269910133147
Chlorophyta 4923636312712110
Ochrophyta 10163844838303522
Total3166169225019515614204179
Many species were only sporadically recorded around the Island, but 12 were commonly found, namely: the Roth, (Woodward) C. Agardh, (Wulfen) J. V. Lamouroux, (S. G. Gmelin) Santelices & Hommersand and (A. P. de Candolle) M. J. Wynne; the (Montagne) Kützing, C. Agradh and C. Agardh; and the (Mertens ex Roth) Derbès & Solier in Castagne, (Linnaeus) Sauvageau, (S. G. Gmelin) Kützing and (J. V. Lamouroux) Montagne. A mismatch regarding the GBIF backbone taxonomy of some of the macroalgae species names was identified as detailed in Suppl. material 1. DP-GRA-id_14140_normalized.csv Macroalgae taxonomic mismatching GBIF does not have the more actualised nomenclature for some of the macroalgae species names. Therefore, the matching tools of its platform were applied to the species list, as required by Pensoft's data auditor, to identify the problematic taxonomic situations. The resulting file (DP-GRA-id_14140_normalized.csv) is included here, since the names will not be immediately updated in the GBIF Taxonomic Backbone. A request was already sent to GBIF helpdesk to solve this situation. File: oo_437509.csv
RankScientific NameCommon Name
phylum Rhodophyta Red algae
phylum Chlorophyta Green algae
phylum Ochrophyta Brown algae
Data set 1.
Column labelColumn description
Table of Sampling EventsTable with sampling events data (beginning of table)
eventIDIdentifier of the event, unique for the dataset
countryCountry of the sampling site
countryCodeCode of the country where the event occurred
stateProvinceName of the region
islandName of the island
municipalityName of the municipality
localityName of the locality
locationIDIdentifier of the location
decimalLatitudeThe geographic latitude of the sampling site
decimalLongitudeThe geographic longitude of the sampling site
geodeticDatumThe spatial reference system upon which the geographic coordinates are based
coordinateUncertaintyInMetresThe horizontal distance (in metres) from the given decimalLatitude and decimalLongitude describing the smallest circle containing the whole of the Location
eventDateTime interval when the event occurred
yearThe year of the event
samplingProtocolSampling method used during an event
locationRemarksZonation level
minimumDepthInMetresThe minimum depth in metres where the specimen was found
maximumDepthInMetresThe maximum depth in metres where the specimen was found
eventRemarksNotes about the event
Table of Species OccurrenceTable with species occurrence data (beginning of new table)
occurrenceIDIdentifier of the record, coded as a global unique identifier
institutionIDThe identifier for the institution having custody of the object or information referred to in the record
institutionCodeThe acronym of the institution having custody of the object or information referred to in the record
collectionIDAn identifier of the collection to which the record belongs
collectionCodeThe name of the collection from which the record was derived
datasetNameThe name identifying the dataset from which the record was derived
eventIDIdentifier of the event, unique for the dataset
kingdomKingdom name
phyllumPhylum name
classClass name
orderOrder name
familyFamily name
genusGenus name
specificEpithetThe name of the first or species epithet of the scientificName
infraspecificEpithetThe name of the lowest or terminal infraspecific epithet of the scientificName, excluding any rank designation
acceptedNameUsageThe specimen accepted name, with authorship
previousIdentificationsPrevious name of the specimen, with authorship
scientificNameThe name without authorship applied on the first identification of the specimen
basisOfRecordThe specific nature of the data record
habitatDescription of the habitat where the specimen was found
recordedByPerson(s) responsible for sampling
catalogNumberIdentifying code for a unique sample lot in a biological collection
identifiedByPerson(s) responsible for taxa identification
typeThe nature of the resource
preparationsThe preservation method used for the specimen
establishmentMeansThe establishment status of the organism in the study region
occurrenceRemarksNew record status assignment
licenceReference to the licence under which the record is published
  1 in total

1.  Restructuring of the 'Macaronesia' biogeographic unit: A marine multi-taxon biogeographical approach.

Authors:  Rui Freitas; Maria Romeiras; Luís Silva; Ricardo Cordeiro; Patrícia Madeira; José Antonio González; Peter Wirtz; Jesús M Falcón; Alberto Brito; Sergio R Floeter; Pedro Afonso; Filipe Porteiro; María Ascensión Viera-Rodríguez; Ana Isabel Neto; Ricardo Haroun; João N M Farminhão; Ana Cristina Rebelo; Lara Baptista; Carlos S Melo; Alejandro Martínez; Jorge Núñez; Björn Berning; Markes E Johnson; Sérgio P Ávila
Journal:  Sci Rep       Date:  2019-11-05       Impact factor: 4.379

  1 in total
  3 in total

1.  Marine algal flora of Flores and Corvo Islands, Azores.

Authors:  Ana I Azevedo Neto; Manuela I Parente; Ian Tittley; Robert L Fletcher; William Farnham; Ana C Costa; Andrea Z Botelho; Sandra Monteiro; Roberto Resendes; Pedro Afonso; Afonso C L Prestes; Nuno V Álvaro; David Mila-Figueras; Raul M A Neto; José M N Azevedo; Ignacio Moreu
Journal:  Biodivers Data J       Date:  2021-02-03

2.  Marine algal flora of Santa Maria Island, Azores.

Authors:  Ana I Azevedo Neto; Manuela I Parente; Eva Cacabelos; Ana Cristina Costa; Andrea Zita Botelho; Enric Ballesteros; Sandra Monteiro; Roberto Resendes; Pedro Afonso; Afonso C L Prestes; Rita F Patarra; Nuno V Álvaro; David Mila-Figueras; Raul M A Neto; José M N Azevedo; Ignacio Moreu
Journal:  Biodivers Data J       Date:  2021-03-25

3.  Marine algal flora of São Miguel Island, Azores.

Authors:  Ana I Azevedo Neto; Ignacio Moreu; Edgar F Rosas Alquicira; Karla León-Cisneros; Eva Cacabelos; Andrea Z Botelho; Joana Micael; Ana C Costa; Raul M A Neto; José M N Azevedo; Sandra Monteiro; Roberto Resendes; Pedro Afonso; Afonso C L Prestes; Rita F Patarra; Nuno V Álvaro; David Milla-Figueras; Enric Ballesteros; Robert L Fletcher; William Farnham; Ian Tittley; Manuela I Parente
Journal:  Biodivers Data J       Date:  2021-04-16
  3 in total

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