Evento de muestreo

Marine algal (seaweed) flora of Pico Island, Azores

Última versión Publicado por Universidade dos Açores en 30 de julio de 2020 Universidade dos Açores
Fecha de publicación:
30 de julio de 2020
Publicado por:
Universidade dos Açores
Licencia:
CC-BY 4.0

Descargue la última versión de los datos como un Archivo Darwin Core (DwC-A) o los metadatos como EML o RTF:

Datos como un archivo DwC-A descargar 74 registros en Inglés (212 KB) - Frecuencia de actualización: cuando sea necesario
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Descripción

Background The seaweed flora of Pico Island (central group of the Azores archipelago) has attracted interest of researchers on past occasions. Despite this, the macroalgal flora of the island cannot be considered well-known as published information reflects only occasional collections. To overcome this, a thorough investigation, encompassing collections and presence data recording, was undertaken. Research under the Campaigns “AÇORES/89”, “PICO/91”, “PICOBEL/2007” and “LAUMACAT/2011” covered a relatively large area (approximately 39 km2) around the island encompassing the littoral and sublittoral levels down to about 40 m. This paper improves the knowledge of the Azorean macroalgal flora at local and regional scales by listing taxonomic records and providing information on the ecology and occurrence of each species present on the island’s littoral.

New information A total of 4043 specimens (including taxa identified only to genus level) belonging to 303 taxa of macroalgae are registered, comprising 197 Rhodophyta, 53 Chlorophyta and 53 Ochrophyta (Phaeophyceae). From these, 225 were identified to species level (142 Rhodophyta, 41 Chlorophyta and 42 Ochrophyta), encompassing 110 new records for the island (69 Rhodophyta, 20 Chlorophyta and 21 Ochrophyta), three Macaronesian endemisms (Botryocladia macaronesica Afonso-Carillo, Sobrino, Tittley & Neto; Laurencia viridis Gil-Rodríguez & Haroun; and Codium elisabethiae O. C. Schmidt), 14 introduced, and 25 species with an uncertain status.

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), has been considered relatively rich when compared to that of other remote oceanic islands (Neto et al. 2005; Tittley & Neto 2005; Wallenstein et al. 2009). Even so, it is worth mentioning that the published information (approximately 400 species, Freitas et al. 2019) reflects data from only a few of the nine islands, since not all of them have been thoroughly investigated. To overcome this, and improve the understanding of the archipelago’s seaweed flora, an effort has been made by local investigators over the past three decades and research on the marine macroalgae flora has been conducted on several of the less studied Azorean islands. This paper comprises both physical and occurrence data and compiles the gathered information from macroalgae surveys developed in Pico Island mainly by the Island Aquatic Research Group of the University of the Azores (https://ce3c.ciencias.ulisboa.pt/sub-team/island-aquatic-ecology). It aims to constitute 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 organizations, and the general public.

Purpose By listing taxonomic records for Pico and presenting general information for each taxon occurrence on the island’s littoral, this paper addresses several biodiversity shortfalls (see 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 abundances and dynamics in space (Prestonian shortfall).

Registros

Los datos en este recurso de evento de muestreo han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 74 registros.

también existen 1 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.

Event (core)
74
Occurrence 
4043

Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.

Versiones

La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.

¿Cómo referenciar?

Los usuarios deben citar este trabajo de la siguiente manera:

Neto A I, Prestes A C L, Vaz Álvaro N, Resendes R, Neto R M A, Tittley I, Moreu I (2019): Marine algal (seaweed) flora of Pico Island, Azores. v1.11. Universidade dos Açores. Dataset/Samplingevent. http://ipt.gbif.pt/ipt/resource?r=pico_seaweed_flora&v=1.11

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es Universidade dos Açores. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: 6af010f0-8238-4745-8309-21c3f82bd488.  Universidade dos Açores publica este recurso y está registrado en GBIF como un publicador de datos avalado por GBIF Portugal.

Palabras clave

Macroalgae; seaweeds; Rhodophyta; Ochrophyta; Chlorophyta; Azores; Pico Island; endemism; native; introduced; uncertain; occurrence data.; Samplingevent

Contactos

Ana Isabel Neto
  • Proveedor De Los Metadatos
  • Autor
  • Originador
  • Punto De Contacto
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
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
9501-801 Ponta Delgada, Açores
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 dp Heroísmo
Terceira, Açores
PT
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
Raul M. A. Neto
  • Originador
Collaborator
Ian Tittley
  • Originador
Science Associate
Natural History Museum
Cromwell Road
Code SW7 5BD London
GB
00 44 1227 365671
Ignacio Moreu
  • Proveedor De Los Metadatos
  • 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

Pico Island, Azores, Macaronesia, Portugal (approximately 38°34'02″ N 28°33′17″ W).

Coordenadas límite Latitud Mínima Longitud Mínima [38,376, -28,555], Latitud Máxima Longitud Máxima [38,567, -28,021]

Cobertura taxonómica

All macroalgae were identified to genus or species. In total, 303 taxa were identified belonging to 30 orders and 67 families, distributed by the phyla Rhodophyta (15 orders and 39 families), Chlorophyta (3 orders and 10 families), and Ochrophyta (12 orders and 18 families).

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

Cobertura temporal

Fecha Inicial / Fecha Final 1989-01-01 / 2018-01-01

Datos del proyecto

Aimed at improving the knowledge of Pico Island macroalgal flora, 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 around the island. This paper lists the taxonomic records and provides information on each species’ ecology and occurrence in the island’s littoral.

Título Marine algal (seaweed) flora of Pico Island, Azores
Identificador Seaweeds of Pico Island (Azores)
Fuentes de Financiación This study was mainly financed by the following projects/scientific expeditions: • Campaign AÇORES/89, under the Expedition Azores/89, Departamento de Oceanografia e Pescas da Universidade dos Açores, July 1989; • Expedition PICO/91, Ilha do Pico, Açores, Departamento de Biologia da Universidade dos Açores Ilha do Pico, Açores, June 1991; • Campaign PICOBEL/2007, under the project “PICOBEL: Coastal benthic communities of Pico Island: characterization and monitoring”. 2007- 2008. The Azores Regional Government; • Campaign LAUMACAT/2011 under the project “LAUMACAT: Diversity and phylogenetic relationships on the benthic marine algae with pharmacological potencial: the Laurencia complex (Rhodophyta) in Macaronesian archipelagos, tropical and subtropical Atlantic”. Phase II. 2011 - 2014. General Direction for Research and Management: Research Projects. Spanish Government; • Project “ACORES-01-0145-FEDER-000072 - AZORES BIOPORTAL – PORBIOTA. Operational Program 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 - 2018, and UID/BIA/00329/2019 and UID/BIA/00329/2020-2023; • Portuguese Regional Funds, through DRCT – Direção Regional da Ciência e Tecnologia, within several projects, since 2013; • CIRN/DB/UAc (Research Centre for Natural Resources, Universidade dos Açores, Departamento de Biologia); • CIIMAR (Interdisciplinary Centre of Marine and Environmental Research, Porto, Portugal).
Descripción del área de estudio Located in the North Atlantic, roughly at 38°43′49″N 27°19′10″W, the Azores comprise nine islands and several islets spread over 500 km, in a WNW direction. The climate is temperate oceanic, with regular and abundant rainfall, high levels of relative humidity and persistent winds, mainly during the winter and autumn seasons (Morton et al. 1998). The islands lack a continental shelf, thus presenting a restricted coastal extension, and deep waters occur within a few kilometres offshore. Shore geomorphology varies considerably with high cliffs in some places and rocky cobble/ boulder beaches elsewhere (Borges 2004), the tidal range is small (<2 m, see Instituto Hidrográfico 1981) and coasts are subjected to swell and surge most of the year. Pico, of approximately 447 km2, and dominated by its 2351 m tall mountain, is the second largest and the youngest island of the Azores archipelago, composed by basaltic volcanic deposits less than 300,000 years old (Cruz & Oliveira 2001). The island's coastline is approximately 126 km long, generally devoid of high cliffs, and consists mainly of irregular extensions of bedrock, presenting a variety of stack, arch and gully formations due to its recent volcanic origin. Intertidal platforms, occasionally dissected by channels and gullies, are mostly easily accessible by land and exhibit considerable variation in width (Wallenstein et al. 2009). Important features and habitats at this shore level are rock pools. These differ in shape and size and are a stressful environment due to the changes in salinity caused by either evaporation or dilution during low tides. They often recreate a shallow subtidal habitat and contain a rich diversity of marine life. A few shores consist of irregularly rounded boulders or cobles between which coarse sand or gravel may be retained. Sandy shores are rare (Neto pers. observ.). The rocky-shore communities of Pico, like all over in the Azores, are dominated by macroalgae at both intertidal and shallow subtidal levels (Neto et al. 2005). At intertidal levels, a distinct zonation pattern is evident with a higher zone dominated by invertebrates (littorinids and chthamalid barnacles, in which patches or fringes of the algae Fucus spiralis Linnaeus and Gelidium microdon Kützing can occur. This is followed by a mid-shore zone 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).Depending on the shore, 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, Chondracanthus and Laurencia) usually growing as epiphytes over articulate calcareous forms (e.g. Elisolandia and Jania). The lower zone is mainly dominated by calcareous crusts (first strata), covered by corticated macrophytes e.g. Elisolandia elongata, Pterocladiella capillacea, Treptacantha abies-marina (S.G.Gmelin) Kützing. Seasonally, and mainly in Spring and Summer, considerable amounts of the introduced Asparagopsis armata Harvey can be seen at this level. Subtidally, algae communities are mainly characterized by the association of two or three frondose macrophytes, e.g. Dictyota, Halopteris, Zonaria tournefortii (J.V.Lamouroux) Montagne.
Descripción del diseño The algae referred to in this paper were collected during field studies at littoral and sublittoral levels down to approximately 40 m on Pico island. Each sampling location was visited several times and on each occasion a careful survey was made covering much of the area. Presence/absence data was recorded for all known species, and whenever an unknown or potential new species was found, it was collected, assigned an individual registration number and vouchers were deposited at the AZB Herbarium Ruy Telles Palhinha, based at the Faculty of Sciences and Technology of the University of the Azores.

Personas asociadas al proyecto:

Abel Sentiés
  • Proveedor De Contenido
Ana Costa
  • Proveedor De Contenido
Ana Isabel Neto
André Amaral
  • Proveedor De Contenido
Antonio Brigos
  • Proveedor De Contenido
Catarina Santos
  • Proveedor De Contenido
Daniel Torrão
  • Proveedor De Contenido
David Villegas
  • Proveedor De Contenido
Edgar Rosas-Alquicira
  • Proveedor De Contenido
Edward Hehre
  • Proveedor De Contenido
Emanuel Xavier
  • Proveedor De Contenido
Eunice Nogueira
  • Proveedor De Contenido
Francisco Wallenstein
  • Proveedor De Contenido
Gustavo Martins
  • Proveedor De Contenido
Heather Baldwin
  • Proveedor De Contenido
Inês Neto
  • Proveedor De Contenido
José M. N. Azevedo
  • Proveedor De Contenido
Ian Tittley
  • Proveedor De Contenido
Karla Leon Cisneros
  • Proveedor De Contenido
Leila Bagaço
  • Proveedor De Contenido
Maria Machín-Sánchez
  • Proveedor De Contenido
Marlene Terra
  • Proveedor De Contenido
Mutue Toyota Fujii
  • Proveedor De Contenido
Nuno Álvaro
  • Proveedor De Contenido
Patrícia Madeira
  • Proveedor De Contenido
Raul Coma
  • Proveedor De Contenido
Raul Neto
  • Proveedor De Contenido
Richard Fralick
  • Proveedor De Contenido
Rita Patarra
  • Proveedor De Contenido
Ruben Afonso
  • Proveedor De Contenido
Ruben Couto
  • Proveedor De Contenido
Sílvia Escarduça
  • Proveedor De Contenido
Valeria Cassano
  • Proveedor De Contenido

Métodos de muestreo

Intertidal collections were made at low tide by walking over the shores. Subtidal collections were made by scuba diving around the area. Sampling encompassed both physical collections and species presence recordings. For the former, in each sampling location, collections were made manually by scraping one or two specimens of species found into previously labelled bags. Species recording data was gathered by registering all species present in the sampled locations visited. Complementary data e.g. shore level (high, mid, low), orientation and type of substrate (bedrock, boulders, cobbles, mixed), habitat (tide pool, open rock, gully, crevice, cave) was also recorded.

Área de Estudio This study covers a relatively large area, approximately 39 km2, covering littoral and sublittoral levels down to approximately 40 m around the Island.
Control de Calidad Each sampled taxon was investigated by trained taxonomists with the help of keys and floras. This involved morphological and anatomical examination by eye or under the dissecting and compound microscopes of an entire specimen or slide preparation. In difficult cases specimens were sent to experts for identification.

Descripción de la metodología paso a paso:

  1. In the laboratory the specimens were 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, the investigation of the thallus anatomy required histological work to obtain longitudinal and transverse sections needed for the observation of cells, reproductive structures and other diagnosing characters. The Azorean algal flora has components from several geographical regions which makes for difficulties in identification. Floras and identification keys to macroalgae in the Atlantic and Western Mediterranean were used in species identification (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, or sent to appropriate specialists. 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, 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 and Cosson (1986), or by letting them air dry (calcareous species); and (iii) silica collections. Nomenclatural and taxonomic status used here follow Algaebase (Guiry & Guiry, 2020). The database was organized on FileMaker Pro.

Datos de la colección

Nombre de la Colección AZB | Marine macroalgae collection of Pico Island (Azores) – Expedition AZORES/89
Identificador de la Colección 4ea1e09c-13c8-4b8e-a28a-72c55bde8f66
Identificador de la Colección Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nombre de la Colección AZB | Marine macroalgae collection of Pico Island (Azores) – Expedition PICO/91
Identificador de la Colección 0f2368fa-0a53-43c5-9f19-b126260e4e83
Identificador de la Colección Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores.
Nombre de la Colección AZB | Marine macroalgae collection of Pico Island (Azores) – Project PICOBEL
Identificador de la Colección 6163248c-236b-4778-99cf-39dbf28a9784
Identificador de la Colección Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nombre de la Colección AZB | Marine macroalgae collection of Pico Island (Azores) – Project LAUMACAT
Identificador de la Colección b4ed4e44-3e8f-42d4-a44b-d78585a8f8f0
Identificador de la Colección Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nombre de la Colección AZB | Marine macroalgae collection of Pico Island (Azores) – Occasional sampling
Identificador de la Colección acc4fc70-0cb6-496e-982c-9207d09b856a
Identificador de la Colección Parental AZB Herbarium Ruy Telles Palhinha, Faculty of Sciences and Technology of the University of the Azores
Nombre de la Colección Marine macroalgae occurrence in Pico Island (Azores) – Expedition AZORES/89
Identificador de la Colección 468e613d-1ce9-4a32-a5f9-c5a8b58545c1
Identificador de la Colección Parental N/A
Nombre de la Colección Marine macroalgae occurrence in Pico Island (Azores) – Project PICOBEL
Identificador de la Colección a8405f3e-fdc6-452d-9dc9-ca1fd3abdf2c
Identificador de la Colección Parental N/A
Nombre de la Colección Marine macroalgae occurrence in Pico Island (Azores) – Project LAUMACAT
Identificador de la Colección 84ff06f5-8c7c-4c3c-9296-38ad24b347bd
Identificador de la Colección Parental N/A
Métodos de preservación de los ejemplares Secado y prensado,  Secado,  Formalina,  Otro

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  24. 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.
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  28. Tittley I & Neto AI, 2005. The Marine Algal (Seaweed) Flora of the Azores: additions and amendments. Botanica Marina, 48: 248-255. DOI 10.1515/BOT.2005.030
  29. Wallenstein FM, Neto AI, Álvaro NV, Tittley I & Azevedo JMN, 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. http://hdl.handle.net/10400.3/1687
  30. 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.
  31. Tittley, I., 2003. Seaweed diversity in the North Atlantic Ocean. Arquipélago Life and Marine Sciences, 19A: 13-25.

Metadatos adicionales

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

Identificadores alternativos 6af010f0-8238-4745-8309-21c3f82bd488
http://ipt.gbif.pt/ipt/resource?r=pico_seaweed_flora