Evento de amostragem

Marine algal flora of Flores and Corvo Islands, Azores

Versão mais recente publicado por Universidade dos Açores em 15 de Novembro de 2020 Universidade dos Açores
Publication date:
15 de Novembro de 2020
Published by:
Universidade dos Açores
Licença:
CC-BY 4.0

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Descrição

Background The algal flora of the western group of the Azores archipelago (Islands of Flores and Corvo) has attracted the interest of many researchers on numerous past occasions (such as Drouët 1866; Trelease 1897; Gain 1914; Schmidt 1929, 1931; Azevedo et al. 1990; Fralick & Hehre 1990; Neto & Azevedo 1990; Neto & Baldwin 1990; Neto 1996, 1997, 1999; Tittley & Neto, 1996, 2000, 2005, 2006; Azevedo 1998, 1999; Tittley et al. 1998; Dionísio et al. 2008; Neto et al. 2008). Despite this interest, the macroalgal flora of the Islands cannot be described as well-known with the published information reflecting limited collections preformed in short term visits by scientists. To overcome this, a thorough investigation, encompassing collections and presence data recording, has been undertaken for both the littoral and sublittoral regions, down to a depth of approximately 40 m, covering a relatively large area on both Islands (approximately 143 km2 for Flores and 17 km2 for Corvo). This paper lists the resultant taxonomic records and provides information on species ecology and occurrence around both these Islands, thereby improving the knowledge of the Azorean macroalgal flora at both local and regional scales.

New information For the Island of Flores, a total of 1687 specimens (including some taxa identified only to genus level) belonging to 196 taxa of macroalgae are registered, comprising 120 Rhodophyta, 35 Chlorophyta and 41 Ochrophyta (Phaeophyceae). Of these taxa, 128 were identified to species level (80 Rhodophyta, 22 Chlorophyta and 26 Ochrophyta), encompassing 37 new records for the Island (20 Rhodophyta, 6 Chlorophyta and 11 Ochrophyta); two Macaronesian endemics (Laurencia viridis Gil-Rodríguez & Haroun and Millerella tinerfensis (Seoane-Camba) S.M.Boo & J.M.Rico); six introduced (the Rhodophyta Asparagopsis armata Harvey, Neoizziella divaricata (C.K.Tseng) S.-M.Lin, S.-Y.Yang & Huisman, and Symphyocladia marchantioides (Harvey) Falkenberg; the Chlorophyta Codium fragile subsp. fragile (Suringar) Hariot; and the Ochrophyta Hydroclathrus tilesii (Endlicher) Santiañez & M.J.Wynne, and Papenfussiella kuromo (Yendo) Inagaki); and 14 species of uncertain status (10 Rhodophyta, 2 Chlorophyta and 2 Ochrophyta). For the Island of Corvo, a total of 390 specimens distributed in 56 taxa of macroalgae are registered, comprising 30 Rhodophyta, 9 Chlorophyta and 17 Ochrophyta (Phaeophyceae). Whilst a number of taxa were identified only to the genus level, 43 were identified to species level (22 Rhodophyta, 8 Chlorophyta and 13 Ochrophyta), comprising 22 new records for the Island (9 Rhodophyta, 4 Chlorophyta and 9 Ochrophyta), two introduced species (the Rhodophyta Asparagopsis armata and the Chlorophyta Codium fragile subsp. fragile, and seven species of uncertain status (5 Rhodophyta and 2 Ochrophyta).

Introduction The Azorean algal flora, considered cosmopolitan, with species shared with Macaronesia, North Africa, the Mediterranean Sea, Atlantic Europe and America (Tittley 2003, Tittley & Neto 2006, Wallenstein et al. 2009), is relatively rich when compared to that of other remote oceanic Islands (Neto et al. 2005, Tittley & Neto 2005, Wallenstein et al. 2009). Around 400 species of marine macroalgae have, to date, been recorded for the isolated mid-Atlantic Azores archipelago (Freitas et al. 2019). These authors, based on extensive analysis encompassing data on brachyurans, polychaetes, gastropods, echinoderms, coastal fishes and macroalgae, suggested that the Azores should be a biogeographical entity of its own and proposed a redefinition of the Lusitanian biogeographical province, in which they recognised 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 comparing the Azorean algal flora to that of the new Webbnesia region, they reported that the Canary Islands, with 689 species of marine macroalgae, 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). It is worth mentioning that the published information reflects data from only a few of the nine Azorean Islands, since not all of them have been adequately investigated. In the Azores archipelago, São Miguel is by far the Island with the largest amount of research dedicated to the study of its 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 improve the understanding of the archipelago’s macroalgal flora, research has been conducted over the past three decades on all the Islands. Data on the Islands of Pico, Graciosa and Terceira is already available on the recently published papers by Neto et al. (2020b, c, d). To provide a better understanding of the archipelago’s seaweed flora, a long term research programme of study has been undertaken, mainly by local investigators into the marine macroalgae flora on several of the less studied Azorean Islands. The present paper presents both physical and occurrence data, and information gathered from surveys undertaken on Flores and Corvo Islands mainly 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 BIOISLE, Biodiversity and Islands Research Group of CIBIO-Açores at the University of the Azores (Link: https://cibio.up.pt/research-groups-1/details/bioisle), 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 species that are often short-lived and fast-growing, and usually very difficult to identify in the wild, without the aid of a microscope and specialised literature in the laboratory. The present paper aims to provide a valuable marine biological tool for research on systematics, diversity and conservation, biological monitoring, climate change and ecology for academics, students, government, private organizations and the general public.

Purpose: In this paper we present taxonomic records of macroalgae recorded from the Islands of Flores and Corvo and provide general information on their occurrence and distribution. 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 improve the current information on their local and regional geographic distribution (Wallacean shortfall), as well as on species abundance and dynamics in space (Prestonian shortfall).

Registros de Dados

Os dados deste recurso de evento de amostragem foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 90 registros.

Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.

Event (core)
90
Occurrence 
2077

This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.

Versões

A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.

Como citar

Pesquisadores deveriam citar esta obra da seguinte maneira:

Neto A I, Parente M I, Tittley I, Fletcher R L, Farnham W F, Costa A C, Botelho A Z, Monteiro S, Resendes R, Afonso P, Prestes A C L, Álvaro N V, Milla-Figueras D, Neto R M A, Azevedo J M N, Moreu I (2020): Marine algal flora of Flores and Corvo Islands, Azores. v1.4. Universidade dos Açores. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=flores-corvo_seaweed_flora&v=1.4

Direitos

Pesquisadores devem respeitar a seguinte declaração de direitos:

O editor e o detentor dos direitos deste trabalho é Universidade dos Açores. This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.

GBIF Registration

Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 6dc27fb5-1449-4482-bb50-21eacb17e570.  Universidade dos Açores publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF Portugal.

Palavras-chave

Macroalgae; Azores; Flores Island; Corvo Island; new records; endemism; native; uncertain; introduced; occurrence data; Samplingevent

Contatos

Ana Isabel Neto
  • Provedor Dos Metadados
  • Autor
  • Originador
  • Ponto De Contato
Associate professor with aggregation
Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia and Grupo de Investigação Aquática Insular, IBBC-GBA/cE3c
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650567
Manuela I. Parente
  • Provedor Dos Metadados
  • Autor
  • Originador
Researcher
CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Universidade dos Açores
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650000
Ian Tittley
  • Originador
Science Associate
Natural History Museum
Cromwell Road
SW7 5BD London
GB
00 44 1227 365671
Robert Lawson Fletcher
  • Originador
Visiting Research Fellow in Marine Environmental Sciences
University of Portsmouth, Institute of Marine Sciences, Department of Biological Sciences
Ferry Road, Eastney, Portsmouth, PO4 9LY, United Kingdom
PO4 9LY Portsmouth, UK
Hampshire, UK
GB
+(0)23 9284 8484
William Frank Farnham
  • Originador
Visiting lecturer
University of Portsmouth
Ferry Road, Eastney, Portsmouth, PO4 9LY, United Kingdom
PO4 9LY Portsmouth, UK
Hampshire, UK
+44 7707 553520
Ana Cristina Costa
  • Originador
Researcher
CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Universidade dos Açores
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650000
Andrea Z. Botelho
  • Originador
Researcher
CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Universidade dos Açores
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650000
Sandra Monteiro
  • Originador
Research Technician
CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Pólo dos Açores, Universidade dos Açores
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650000
Roberto Resendes
  • Originador
Curator at the AZB Herbarium Ruy Telles Palhinha
Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650000, ext. 1731
Pedro Afonso
  • Originador
Senior Researcher
IMAR/Okeanos – University of the Azores
Departamento de Oceanografia e Pescas, Universidade dos Açores, Rua Prof. Doutor Frederico Machado
9901-862 Horta
Faial, Açores
PT
Afonso C. L. Prestes
  • Originador
Researcher
Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia and Grupo de Investigação Aquática Insular, IBBC-GBA/cE3c
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650567
Nuno Vaz Álvaro
  • Originador
Researcher
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)
Campus de Angra do Heroísmo Rua Capitão João d’Ávlia – Pico da Urze
9700-042 Angra do Heroísmo
Terceira, Açores
PT
+3295 402 200
David Milla-Figueras
  • Originador
Collaborator
IMAR/Okeanos – University of the Azores
Departamento de Oceanografia e Pescas, Universidade dos Açores, Rua Prof. Doutor Frederico Machado
9901-862 Horta
Faial, Açores
PT
+351910989920
Raul M. A. Neto
  • Originador
Collaborator
José M. N. Azevedo
  • Originador
Auxiliary professor and Researcher
Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia and Grupo de Investigação Aquática Insular, IBBC-GBA/cE3c
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650113
Ignacio Moreu
  • Provedor Dos Metadados
  • Autor
  • Originador
Researcher
Universidade dos Açores, Faculdade de Ciências e Tecnologia, Departamento de Biologia and Grupo de Investigação Aquática Insular, IBBC-GBA/cE3c
Rua da Mãe de Deus, 13-A
9500-321 Ponta Delgada
São Miguel, Açores
PT
+351296650567

Cobertura Geográfica

Flores and Corvo Islands Coordinates: 39.73887436009367 and 39.35978526869001 Latitude; -31.28082275390625 and -31.036376953125 Longitude.

Coordenadas delimitadoras Sul Oeste [39,36, -31,281], Norte Leste [39,739, -31,036]

Cobertura Taxonômica

All macroalgae were identified to genus or species level. For Flores a total of 196 taxa were identified belonging to 24 orders and 54 families, distributed in the phyla Rhodophyta (14 orders and 33 families), Chlorophyta (3 orders and 9 families), and Ochrophyta (7 orders and 12 families). For Corvo a total of 56 taxa were identified belonging to 16 orders and 29 families, distributed in the phyla Rhodophyta (7 orders and 16 families), Chlorophyta (3 orders and 4 families), and Ochrophyta (6 orders and 9 families).

Filo Rhodophyta (Red algae), Chlorophyta (Green algae), Ochrophyta (Brown algae)

Cobertura Temporal

Período de tempo em que viveu 1989 - 2018

Dados Sobre o Projeto

Aimed at improving the knowledge of the macroalgae flora of the eastern Islands of the Azores archipelago, extensive observations were made in the period between 1989 and 2018, encompassing both collections and presence data recordings, and covering the littoral and sublittoral levels down to approximately 40 m. This paper lists the taxonomic records and provides information on each species’ ecology and occurrence in the Islands’ littoral.

Título Marine algal flora of Flores and Corvo Islands, Azores
Identificador Flores & Corvo_macroalgal_flora
Financiamento This study was mainly financed by the following projects/scientific expeditions: • Projects: o IASTFC- “Impact Assessment Study for the construction of the Transport Infrastructures of the Islands of Flores and Corvo, Azores - natural environment”, funded by the Azores Regional Government - Regional Secretariat for Tourism and Environment / Regional Environment Directorate, 1990; o LFFC- “Littoral flora of the islands of Flores and Corvo: Inventory, ecology and biogeographic affinities”, Government of the Azores - Regional Secretariat for Tourism and Environment / Regional Environment Directorate (GRA-SRTA / DRA), 1995-1999; o Project Flores- Biosphere - “Application of Flores Island to a Biosphere Reserve”. Government of the Azores - Regional Secretariat for the Environment and the Sea (GRA-SRAM). 2007-2008; o Project MOST - “Application of a model of sustainable tourism to areas of Natura 2000 network in the Azores” (PTDC / AAC-AMB / 104714/2008). Foundation for Science and Technology and the Government of the Azores - Regional Secretariat for the Sea, Science and Technology, Regional Directorate for Sea Affairs (GRA / SRMCT-DRAM), 2010 - 2013; o Project PIMA – “Elaboration of the implementation program of the Marine Strategy Framework Directive - Marine Invasion Program in the Azores” (3 /DRAM /2015). Government of the Azores - Regional Secretariat for the Sea, Science and Technology, Regional Directorate for Sea Affairs (GRA / SRMCT-DRAM), 2015; o Project BALA – “Elaboration of the implementation program of the marine strategy framework directive - biodiversity of the coastal environments of the Azores” (2 /DRAM /2015). Government of the Azores - Regional Secretariat for the Sea, Science and Technology, Regional Directorate for Sea Affairs (GRA / SRMCT-DRAM), 2015; o Project “ACORES-01-0145-FEDER-000072 - AZORES BIOPORTAL – PORBIOTA. Operational Programme Azores 2020 (85% ERDF and 15% regional funds); • Scientific Expeditions and campaigns: o “FLORES/89”, organized by the Biology Department of the University of the Azores, Flores Island, Azores, July 1989; o “Earthwatch FLORES/95”, a joint organization of the Marine Biology Section of the Biology Department of the University of the Azores and the Natural History Museum (London), co-funded by the Earthwatch International and developed under the project LFFC, July – August 1995; o “FLORES & CORVO/99”, developed under the project LFFC, July 1999; o “FLORES & CORVO/2007”, XIII Scientific Expedition of the Biology Department of the University of the Azores, Islands of Flores and Corvo, July 2007; o “MOST”, under the project MOST, 2011-2013; o “PIMA/BALA”, under the projects PIMA and BALA, 2015; • Other funds: o 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; o ERDF funds through the Operational Programme for Competitiveness Factors – COMPETE; o Portuguese Regional Funds, through DRCT - Regional Directorate for Science and Technology, within several projects, 2019 and 2020 and SRMCT / DRAM - Regional Secretariat for the Sea, Science and Technology, Regional Directorate for Sea Affairs; o CIRN/DB/UAc (Research Centre for Natural Resources, Universidade dos Açores, Departamento de Biologia); o CIIMAR (Interdisciplinary Centre of Marine and Environmental Research, Porto, Portugal).
Descrição da Área de Estudo The Azores archipelago (38°43′49″N, 27°19′10″W), comprising nine Islands and several islets, is spread over 500 km, in a WNW direction. The Islands emerged from what is called the Azores Plateau, and are located above an active triple junction between three of the world's largest tectonic plates (the North American Plate, the Eurasian Plate and the African Plate, Hildenbrand et al. 2018). Flores and Corvo, the westernmost Islands of the archipelago, are located in the North American Plate, whereas the remaining Islands are located around the boundary that divides the Eurasian and African Plates (Hildenbrand et al. 2018). The Islands of Flores and Corvo are sub-aerial domains of a large volcanic formation, mostly submarine, implanted on an oceanic crust, and aged between 9.0 and 10.0 million years (Ma). Each of these Islands has unique geomorphological characteristics: Flores (39°31'27″N, -31°15'31"W), of approximately 141 km2, is composed of two units, the central massif located in the central plain, and the coastal periphery; Corvo, its neighbour (39°43'37"N, -31°7'44"W), of approximately 17 km2, is a crater of a major Plinian eruption and the smallest Island of the Azores archipelago (Azevedo 1999). The climate, as in the remaining Islands, is characterized by regular and abundant rainfall, high levels of relative humidity and persistent winds, mainly during the winter and autumn seasons (Morton et al. 1998). Fog is common and almost permanent at the higher elevations. Marine action is responsible for the predominance of erosive morphologies in the coastal areas of both Islands, examples of which on Flores (Neto et al. 2008) are: the valleys associated with fluvial erosion (Vales das Lajes and da Fazenda); the coastal or back cliffs (Fajãzinha - Ponta da Fajã); the large marine abrasion platforms (Fajãzinha - Fajã Grande); and the coastal platforms associated with landslides and collapses (Ponta da Fajã). Owing to the lack of a continental shelf that characterises most volcanic Islands, coastal extension is restricted, and deep waters occur within a few kilometres offshore. The tidal range is small (<2 m, Instituto Hidrográfico 1981) and coasts are subjected to swell and surge for most of the year. The Islands’ coastline, approximately 72.209 km long on Flores and 19.045 km long on Corvo, is predominantly rocky, subject to strong maritime erosion and presents an irregular slope with extensive and high cliffs cut by waterfalls and streams, alternating with a complex system of bays, rocky beaches and natural terraces (Azevedo 1999). Along the coastline, the bottom is mostly made up of irregular rocky bedrock, containing, in some places, pockets of sediment of coarse sand and gravel, alternating with places covered by blocks that rest on either the rocky bed or the sediment. Submerged or semi-submerged caves, arches and tunnels of small amplitude and reduced length are common. As depth increases, the slope decreases, although the bottom is still rocky and uneven. This feature is interrupted by valleys and other structures of smooth to rough relief. The sediment floor in the deepest areas is stable, generally composed of medium and /or coarse sand. From this floor arise small islets with normally vertical walls and low irregular crowns, marked by ridges and valleys (Neto et al. 2008). Along the coastline and islets natural sheltered habitats (arches and semi-submerged caves, tide pools) create favourable conditions for the growth of juveniles and adults of coastal fish. The constant recycling of nutrients caused by the wave exposed coasts of these Islands, provides suitable conditions for the occurrence of considerable diversity and abundance of macroinvertebrates and pelagic and benthic fish (Neto et al. 2008). At the foot of the cliffs the rocky intertidal zone is, as elsewhere in the Azores, dominated by algal communities that form mosaic and /or horizontal bands relative to tide level and are made up of multispecific algal turfs (growth forms of either diminutive algae or diminutive forms of larger species) that carpet the rocks. In the intertidal, a distinct zonation pattern is evident. The higher zone, dominated by invertebrates (littorinids and chthamalid barnacles), gives rise below to a mid-shore zone covered by algal turfs that create a dense, compact mat 20-30 mm in thickness). The turf can be monospecific (of either Caulacanthus ustulatus (Mertens ex Turner) Kützing, Centroceras clavulatum (C. Agardh) Montagne or Gymnogongrus), or multispecific and composed by soft algae (e.g. Centroceras clavulatum, Ceramium and Chondracanthus) usually growing as epiphytes over articulate calcareous forms (e.g. Elisolandia and Jania). The low-shore zone is mainly dominated by calcareous crusts (first/ basal strata), covered by corticated macrophytes e.g. Elisolandia elongata (J.Ellis & Solander) K.R.Hind & G.W.Saunders and Pterocladiella capillacea (S.G.Gmelin) Santelices & Hommersand, and in more exposed locations Tenarea tortuosa (Esper) Me Lemoine (Neto et al. 2008). Seasonally, and mainly in Spring and Summer, the introduced red alga Asparagopsis armata occurs often abundantly at this lower intertidal level. Important features and habitats at this shore level are rock pools, occurring in different shapes and sizes and often recreating a shallow subtidal habitat, which contains a rich diversity of marine life. A few shores consist of irregularly rounded boulders or cobbles between which coarse sand or gravel may be retained. Sandy shores are rare (Neto pers. observ.). The rocky bottoms in the submerged zone are covered by more frondose macrophytes such as Pterocladiella capillacea, Halopteris filicina (Grateloup) Kützing, Dictyota spp. or Zonaria tournefortii (J.V.Lamouroux) Montagne. At this level the edible barnacles Megabalanus azoricus (Pilsbry, 1916) and/or the limpets Patella aspera Röding, 1798 are concentrated in the first few meters, while the slipper lobsters Scyllarides latus (Latreille, 1803) or the spiny lobsters Palinurus elephas (Fabricius, 1787) are found at greater depths. Several species of fish, such as the blue wrasse Symphodus caeruleus (Azevedo, 1999) or the ornate wrasse Thalassoma pavo (Linnaeus, 1758) are particularly frequent in shallow rocky areas, whereas other fish take shelter in crevices during the day, such as the morays, Muraena helena Linnaeus, 1758, or the forkbeards Phycis phycis (Linnaeus, 1766). Still other species roam among rocky reefs, such as the parrotfish Sparisoma cretense (Linnaeus, 1758), the salemas Sarpa salpa (Linnaeus, 1758) and the white sea bream Diplodus sargus (Linnaeus, 1758). In the numerous sea caves around Flores and Corvo the dusky grouper Epinephelus marginatus (Lowe, 1834) occurs with an unknown frequency in most of the other Islands (Neto et al. 2008). In 2007, both Flores and Corvo Islands were recognised by UNESCO as a Biosphere Reserve, and thus integrated in the program “The Man and the Biosphere”. The program focuses on the ecological, social and economic dimensions of biodiversity loss, and uses the World Network of Biosphere Reserves as a vehicle for knowledge sharing, research and monitoring, education and training, and participatory decision-making with local communities. The proposed area for the Biosphere Reserve includes the entire emerged land area of the Islands and a surrounding marine zone, covering a total area of 58,619 hectares in Flores and 25,853 hectares in Corvo and incorporating an important diversity of habitats of regional, national and international importance, which includes, for example, areas integrated in the Natura 2000 Network. The inclusion of a vast marine area promotes explicitly, alongside with conservation, an integrated management practice between terrestrial, coastal and marine environments (Neto et al. 2008).
Descrição do Design The algae referred to in this paper were collected during field surveys from both the littoral and sublittoral regions down to approximately 40 m on the Islands of Flores and Corvo. Each sampling location was visited several times. On each occasion a careful and extensive survey was undertaken to provide a 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 in the AZB Herbarium Ruy Telles Palhinha and the Molecular Systematics Laboratory at the Faculty of Sciences and Technology of the University of the Azores.

O pessoal envolvido no projeto:

Ana Isabel Neto
Ana Cristina Costa
  • Provedor De Conteúdo
Andrea Z. Botelho
  • Provedor De Conteúdo
Carolina Arruda
  • Provedor De Conteúdo
Cláudia Hipólito
  • Provedor De Conteúdo
Cristiana Figueiredo
  • Provedor De Conteúdo
David Milla-Figueras
  • Provedor De Conteúdo
Heather Baldwin
  • Provedor De Conteúdo
Inês Neto
  • Provedor De Conteúdo
Joana Michael
  • Provedor De Conteúdo
José M. N. Azevedo
  • Provedor De Conteúdo
Ian Tittley
  • Provedor De Conteúdo
Manuela I. Parente
  • Provedor De Conteúdo
Marco Henrique
  • Provedor De Conteúdo
Maria Ana Dionísio
  • Provedor De Conteúdo
Maria Ventura
  • Provedor De Conteúdo
Nuno Vaz Álvaro
  • Provedor De Conteúdo
Patrícia Madeira
  • Provedor De Conteúdo
Pedro Cerqueira
  • Provedor De Conteúdo
Raul Neto
  • Provedor De Conteúdo
Rita Grilo
  • Provedor De Conteúdo
Rita Norberto
  • Provedor De Conteúdo
Robert Fletcher
  • Provedor De Conteúdo
Sandra Monteiro
  • Provedor De Conteúdo
William Farnham
  • Provedor De Conteúdo

Métodos de Amostragem

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 from the surface one or two specimens of all the observed species and then placing them into labelled bags. Species recording data was gathered by registering all species present in the sampled locations visited.

Área de Estudo This study covers a relatively large area, of approximately 143 km2 on Flores and 17 km2 on Corvo, covering littoral and sublittoral levels down to approximately 40 m around the Islands.
Controle de Qualidade Each sampled taxon was identified by trained taxonomists and involved morphological and anatomical observations of whole specimens by eye, and/or of histological preparations under microscopes to determine the main diagnostic features of each species as described in the literature.

Descrição dos passos do método:

  1. Specimens were sorted and studied in the laboratory following standard procedures used in macroalgae identification. Species identification was usually based on a combination of morphological, anatomical and reproductive features. For small and simple thalli, this required observing the entire thallus with the unaided eye and/or using dissecting and compound microscopes. For larger and more complex algae, investigation of the thallus anatomy required histological procedures (longitudinal and transverse sections) or squashed preparations of mucilaginous thalli, sometimes after staining, to observe vegetative and reproductive structures and other diagnostic features. The mixed nature of the Azorean algal flora with components from several geographical regions cause difficulties in species identification. Floras and keys for the North Atlantic, Tropical Atlantic and Western Mediterranean were used (e.g. Schmidt 1931, Taylor 1967, 1978, Levring 1974, Dixon & Irvine 1977, Lawson & John 1982, Irvine 1983, Gayral & Cosson 1986, Fletcher 1987, Afonso-Carrillo & Sansón 1989, Burrows 1991, Boudouresque et al. 1992, Cabioc'h et al. 1992, Maggs & Hommersand 1993, Irvine & 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 an 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 & Forman 1999); (ii) dried collections, either by pressing the algae (most species) as described by Gayral & Cosson (1986), or by letting them air dry (calcareous species); and (iii) silica gel collections for molecular studies. Nomenclatural and taxonomic status used here follow Algaebase (Guiry & Guiry, 2020). The database was organized on FileMaker Pro.

Dados de Coleção

Nome da Coleção AZB | Marine macroalgae collection of Flores and Corvo Islands (Azores)-Expedition Flores/89
Identificador da Coleção 33967202-6b10-4182-99d2-621d594572cc
Identificador da Coleção Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nome da Coleção AZB | Marine macroalgae collection of Flores and Corvo Islands (Azores)-Expedition Earthwatch Flores/95
Identificador da Coleção cd4c8dd8-49f7-4318-9b3d-c78aaec53c2d
Identificador da Coleção Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nome da Coleção AZB | Marine macroalgae collection of Flores and Corvo Islands (Azores)-Expedition Flores & Corvo/99
Identificador da Coleção 93772fb0-339a-4081-b742-a101ca66c019
Identificador da Coleção Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nome da Coleção Marine macroalgae collection of Flores and Corvo Islands (Azores)-Expedition Flores & Corvo/2007
Identificador da Coleção a7ca4500-9608-44eb-9269-528a40264071
Identificador da Coleção Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nome da Coleção AZB | Marine macroalgae collection of Flores and Corvo Islands (Azores)-Occasional sampling
Identificador da Coleção 1a7a0a41-5a5c-460c-815d-0c3503a5a2ea
Identificador da Coleção Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nome da Coleção AZB | Marine macroalgae collection of Flores and Corvo Islands (Azores)-Occasional sampling
Identificador da Coleção cfc9d276-6d4e-4cc3-8f40-be9c3e5ba6e9
Identificador da Coleção Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nome da Coleção Marine macroalgae occurrence of Flores and Corvo Islands (Azores)-Expedition Flores & Corvo/99
Identificador da Coleção 434097ea-bac3-49ac-9f5a-3aa9b6c10503
Identificador da Coleção Parental Not applicable
Nome da Coleção Marine macroalgae occurrence of Flores and Corvo Islands (Azores)-Project MOST
Identificador da Coleção db4e55cc-1401-4b1c-9343-fc2a3e27e473
Identificador da Coleção Parental Not applicable
Nome da Coleção Marine macroalgae occurrence of Flores and Corvo Islands (Azores)-Campaign PIMA/BALA
Identificador da Coleção 29ca7edc-3911-4c59-9722-c9aba69ca506
Identificador da Coleção Parental Not applicable
Nome da Coleção Marine macroalgae occurrence of Flores and Corvo Islands (Azores)-Occasional sampling
Identificador da Coleção 153bd328-1e16-4e9e-8dc8-56994c25fb31
Identificador da Coleção Parental Not applicable
Métodos de preservação do espécime Seco,  Seco e prensado,  Formalina,  Outro

Citações bibliográficas

  1. Afonso-Carrillo, J. & Sansón, M., 1989. Clave llustrada para la Determinación de los Macrófitos Marinas Bentónicos de las Islas Canarias [Illustrated key for the determination of the Benthic Marine Macrophytes of the Canary Islands]. Departamento de Biologia Vegetal (Botânica), Universidad de La Laguna, La Laguna. 55 pp.
  2. Azevedo, J.M.N., A.I. Neto & Costa, A.C., 1990. Estudo de impacte ambiental sobre o meio marinho das infraestruturas de transporte das ilhas das Flores e Corvo. Departamento de Biologia, Universidade dos Açores, 7 pp.
  3. Azevedo, J.M.M., 1998. Depósitos vulcanoclásticos submarinos: caso de estudo da ilha das Flores, Açores. Provas de Aptidão Científica e Pedagógica. Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia da Universidade de Coimbra, 198 pp.
  4. Azevedo, J.M.M., 1999. Geologia e Hidrogeologia da Ilha das Flores (Açores, Portugal). Tese de doutoramento. Departamento de Ciências da Terra. Faculdade de Ciências e Tecnologia. Universidade de Coimbra, 403 pp.
  5. Boudouresque, C,-F., Meinesz, A. & Verlaque, M., 1992. Médíterranée. In Boudouresque C-F et al. (Eds.), Guide des Algues des Mers d'Europe, pp: 138-231. Delachaux et Niestlé, Paris.
  6. Bridsen, D. & Forman, L. (Eds), 1999. The Herbarium Handbook. Third Edition. Kew: The Board of Trustees of the Royal Botanic Gardens, Kew. xii, 334p., ISBN 1-900347-43-1.
  7. Brodie, J., Maggs, C., John, D. M. (Eds.), 2007. The green seaweeds of Britain and Ireland. British Phycological Society, XII+242 pp. Dunmurry, Northern Ireland.
  8. Burrows, E. M., 1991. Seaweeds of the British lsles. Vol. 2. Chlorophyta. Natural History Museum, London. XII + 238 pp.
  9. Cabioc'h, J., Floc'h, J. –Y. & Le Toquin, A., 1992. Manche et Atlantique. ln C.-F. Boudouresque, et al. (Eds.), Cuide des Algues des Mers d'Europe, pp: 30-136. Delachaux et Niestlé, Paris.
  10. Cardoso, P., Erwin, T., Borges, P.V. & New. T., 2011 The seven impediments in invertebrate conservation and how to overcome them. Biological Conservation 144 (11 ): 2647 2655. https://doi.org/10.1016/j.biocon.2011.07.024.
  11. Dionísio, M.A., Micael, J., Parente, M., Norberto, R., Cunha, A., Brum, J., Cunha, L., Lopes, C., Monteiro, S., Palmero, A. & Costa, A.C., 2008. Contributo para o conhecimento da biodiversidade marinha da ilha das Flores. XIII Expedição Científica do Departamento de Biologia FLORES E CORVO 2007. Relatórios e Comunicações do Departamento de Biologia, 35: 65-84.
  12. Dixon, S. P. & Irvine, L. M., 1977. Seaweeds of the British Isles. Vol. I Rhodophyta. Part 1 Introduction, Nemaliales, Gigartinales. XI+252p. British Museum (Natural History) London.
  13. Drouet, H., 1866. Catalogue de la flore des lles Açores précédé de l'itinéraire d'un voyage dans cet Archipel. Mémoires de la Société Académique de l'Aube, 30: 81-233.
  14. Fletcher, R. L., 1987. Seaweeds of the British Isles. Vol. III. Fucophyceae (Phaeophyceae). Part 1. X+359p. British Museum (Natural History) London.
  15. Fralick, R. A. & Hehre, E. J. , 1990. Observations on the marine algal flora of the Azores II. An annotated checklist of the Chlorophyta of the Azores. Arquipélago (Life and Earth Sciences) 8:11-17.
  16. Freitas, R., Romeiras, M., Silva, L., Cordeiro, R., Madeira, P., González, J.A., Wirtz, P., Falcón, .JM., Brito, A., Floeter, S.R., Afonso, P., Porteiro, F., Viera-Rodríguez, M.A., Neto, A.I., Haroun, R., Farminhão, J.N.M., Rebelo, A.C., Baptista, L., Melo, C.S., Martínez, A., Núñez, J., Berning, B., Johnson, M.E. & Ávila, S.P.,, 2019. Restructuring of the ‘Macaronesia’ biogeographic unit: A marine multi-taxon biogeographical approach. Scientific Reports, 9, 15792.
  17. Gain, L., 1914. Algues provenantdes campagnes de l'Hirondelle II (1911-1912). Bulletin de l'lnstitut Oceanographique, Monaco, 279: 1-23.
  18. Gayral, P. & Cosson, J., 1986. Connaitre et reconnaitre les algues marines. 220p. Ouest France.
  19. Guiry, M. D. & Guiry, G. M., 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on October, 26.
  20. Hildenbrand, A., Marques, F.O. & Catalão, J., 2018. Large-scale mass wasting on small volcanic islands revealed by the study of Flores Island (Azores). Sci Rep 8, 13898.
  21. Hortal, J., de Bello, F., Diniz-Filho, J. A. F., Lewinsohn, T. M., Lobo, J. M. & Ladle, R. J., 2015. Seven shortfalls that beset large-scale knowledge of biodiversity. Annual Review of Ecology, Evolution, and Systematics, 46, 523-549.
  22. Hidrográfico I (Ed.), 1981. Roteiro do Arquipélago dos Açores. PUB. (N) -lli-128-SN, Lisboa.
  23. Irvine, L. M., 1983. Seaweeds of the British Isles. Vol. I Rhodophyta. Part 2 A Cryptonemiales (sensu stricto), Palmariales, Rhodymeniales. XII+115p. British Museum (Natural History) London.
  24. Irvine, L. M. & Chamberlain, Y. M., 1994. Seaweeds of the British Isles. Vol. 1. Rhodophyta. Part 2B. Corallinales, Hildenbrandiales. Natural History Museum, London. VII + 276 pp.
  25. Lawson, G. W. & John, D. M., 1982. The marine algae and coastal environment of Tropical West Africa. 455p. Beihefte zur Nova Hedwigia, J. Cramer, Vaduz.
  26. Levring, T., 1974. The marine algae of the archipelago of Madeira. Boletim do Museu Municipal do Funchal, 28 (125): 5-111.
  27. Lloréns, J. L. P., Cabrero, I. H., Lacida, R. B., González, G. P., Murillo, F. G. B. & Oñate, J. J. V., 2012. Flora marina del litoral gaditano. Biologia, ecologia, usos y guía de identificacíon. 368 p. mCN Monografias de Ciencias de la Naturaleza. Servicio de Publicaciones de la Universidad de Cadiz, Cadiz.
  28. Maggs, C. A. & Hommersand, M. H., 1993. Seaweeds of the British Isles. Vol1. Rhodophyta. Part 3A. Ceramiales. Natural History Museum, London. xv + 444 pp.
  29. Morton, B., Britton, J. C. & Martins, A. M. F.,1998. Coastal Ecology of the Azores. Sociedade Afonso Chaves, Ponta Delgada. 249pp.
  30. Neto, A.I. & Azevedo, J. M. M., 1990. Contribuição para o estudo dos padrões de zonação litoral da Ilha das Flores. FLORES/89 – Relatório Preliminar. Relatórios e Comunicações do Departamento de Biologia, 18: 89-102.
  31. Neto, A.I. & Baldwin, H. P., 1990. Algas marinhas do litoral das ilhas do Corvo e Flores. FLORES/89 – Relatório Preliminar. Relatórios e Comunicações do Departamento de Biologia, 18: 103-111.
  32. Neto, A.I., 1996. Flora litoral das ilhas das Flores e Corvo: Inventário, ecologia e afinidades biogeográficas. I. Departamento de Biologia, Universidade dos Açores, 9 pp.
  33. Neto, A.I., 1997. Flora litoral das ilhas das Flores e Corvo: Inventário, ecologia e afinidades biogeográficas. II. Departamento de Biologia, Universidade dos Açores, 5 pp.
  34. Neto, A.I., 1999. Flora litoral das ilhas das Flores e Corvo: Inventário, ecologia e afinidades biogeográficas. III. Departamento de Biologia, Universidade dos Açores, 23 pp.
  35. Neto, A. I., Tittley, I. & Raposeiro, P., 2005. Flora Marinha do Litoral dos Açores [Rocky Shore Marine Flora of the Azores]. 156pp., Secretaria Regional do Ambiente e do Mar, Açores, ISBN 972 99884 0 4.
  36. Neto, A.I., Azevedo, J. M. N., Madruga, L., Terra, M. R., Álvaro, N. V. & Azevedo, J. M. M., 2008. Candidatura da Ilha das Flores a Reserva da Biosfera. Gaiaware - Consultoria em Ambiente e Energia, Lda. Secretaria Regional do Ambiente e do Mar, Governo dos Açores, vii+233pp.
  37. Neto, A.I., Parente, M. I., Botelho, A. Z., Prestes, A. C. L., Resendes, R., Afonso, P., Álvaro, N. V., Milla-Figueras, D., Neto, R. M. A., Tittley, I. & Moreu, I., 2020a. Marine algal flora of Graciosa Island, Azores. Biodiversity Data Journal, 8: e57201.
  38. Neto, A.I., Prestes, A. C. L., Álvaro, N. V., Resendes, R., Neto, R. M. A., Tittley, I. & Moreu, I., 2020b. Marine algal flora, of Pico Island, Azores. Biodiversity Data Journal, 8: e57461.
  39. Neto, A.I., Prestes, A. C. L., Álvaro, N. V., Resendes, R., Neto, R. M. A. & Moreu, I., 2020c. Marine algal (seaweed) flora of Terceira Island, Azores. Biodiversity Data Journal, 8: e57462.
  40. Rodríguez-Prieto, C., Ballesteros, E., Boisset, F. & Afonso-Carrillo, J., 2013. Guía de las macroalgas y fanerógamas marinas del Mediterráneo Occidental. 656 p. Ed. Omega, S.A., Barcelona.
  41. Schmidt, O. C., 1929. Beitrage zur Kenntnis der Meeresalgen der Azoren. I. Hedwigia, 69: 95-113.
  42. Schmidt, O. C., 1931. Die marine vegetation der Azoren in ihren Grundzügen dargestellt. Bibliotheca Botanica, 24 (102): 1-116p, 10 Tafl.
  43. Taylor, W. R., 1967. Marine algae of the northeastern coasts of North America. VIII+509p. The University of Michigan Press.
  44. Taylor, W. R., 1978. Marine algae of the eastern tropical and subtropical coasts of the Americas. XXI+870p. The University of Michigan Press.
  45. Tittley, I., 2003. Seaweed diversity in the North Atlantic Ocean. Arquipélago Life and Marine Sciences, 19A: 13-25.
  46. Tittley, I. & Neto, A. I., 1996. Marine algae of the Island of Flores, Azores: Floristics and Ecology. II Simpósio Fauna e Flora das Ilhas Atlânticas, Abstract Book, p. 77, Las Palmas, Gran Canaria, Espanha, 12-16 de fevereiro.
  47. Tittley, I. & Neto, A. I., 2000. A provisional classification of algal characterized rocky shore biotopes in the Azores. Hydrobiologia, 440 (1): 19-25.
  48. Tittley, I. & Neto, A. I., 2005. The Marine Algal (Seaweed) Flora of the Azores: additions and amendments. Botanica Marina, 48: 248-255.
  49. Tittley, I. & Neto, A. I., 2006. The marine algal flora of the Azores: Island isolation or Atlantic stepping stones? Occasional papers of the Irish Biogeographical Society 9: 40-54.
  50. Tittley, I., Neto, A. I., & Farnham, W. F., 1998. Marine algae of the Island of Flores, Azores: Ecology and floristics. Boletim do Museu Municipal do Funchal, Sup. 5: 463-479.
  51. Trelease, W., 1897. Botanical observations on the Azores. Eigth Annual Report of the Missouri Botanical Garden: 76-213.
  52. Wallenstein, F. M., Neto, A. I., Álvaro, N. V., Tittley, I. & Azevedo, J. M. N., 2009. Guia para Definição de Biótopos Costeiros em Ilhas Oceânicas [Coastal Biotope Definition Manual for Oceanic Islands], Secretaria Regional do Ambiente e do Mar, ISBN 978-972-99884-9-3.

Metadados Adicionais

Additional information on this study may also be requested to the first author.

Identificadores alternativos 6dc27fb5-1449-4482-bb50-21eacb17e570
http://ipt.gbif.pt/ipt/resource?r=flores-corvo_seaweed_flora