Descripción
Relative annual coverage (percentage) of the different benthic groups presents in the Abrolhos Archipelago, starting in 2006.
Registros
Los datos en este recurso de registros biológicos 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 1.656 registros.
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:
PELD - ABRS | Avaliação e monitoramento dos recifes de Abrolhos. v1. Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Dataset/Samplingevent. https://ipt.sibbr.gov.br/peld/resource?r=peld-abrs_archipelago&v=1.0
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento-NoComercial (CC-BY-NC 4.0).
Registro GBIF
Este recurso no ha sido registrado en GBIF
Palabras clave
Samplingevent; Abrolhos; Coral Reefs; Brazil; Occurrence
Contactos
- Originador ●
- Usuario ●
- Punto De Contacto
- Professor
- Proveedor De Los Metadatos
- Post doctoral researcher
- Proveedor De Los Metadatos ●
- Originador
- Technician
- Proveedor De Los Metadatos
- Post doctoral researcher
Cobertura geográfica
Data sampled in Abrolhos Marine National Park, Bahia, Brazil
Coordenadas límite | Latitud Mínima Longitud Mínima [-17,973, -38,715], Latitud Máxima Longitud Máxima [-17,959, -38,69] |
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Cobertura taxonómica
Coral reefs organisms were identified at the lower taxa possible (species or genus), Coral reefs organisms were identified at the lower taxa possible (species or genus)
Género | Agaricia, Millepora, Porites, Siderastrea |
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Especie | Favia gravida, Madracis decactis, Meandrina braziliensis, Millepora nitida, Montastrea cavernosa, Mussismilia braziliensis, Mussismilia hartti, Mussismilia hispida, Mussismilia leptophylla, Scolymia wellsi |
Zoanthids includes Palythoa caribaeorum and Zoanthus spp.
Orden | Zoantharia |
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Crustose Calcareous Algae (CCA)
Unranked | CCA |
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Benthic cyanobacteria mats
Filo | Cyanobacteria |
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Includes all encrusting sponges
Unranked | Encrusting sponge |
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Includes all species of macroalgae
Unranked | Macroalgae |
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Includes all massive sponges
Unranked | Massive sponge |
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Includes octocorals, bryozoans, ascidians, polychaetes, anemones
Unranked | Other organisms |
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Includes all boring sponges
Unranked | Perforating sponge |
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Includes sediment and dead organisms
Unranked | Substrate/Dead |
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Turf
Unranked | Turf |
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Cobertura temporal
Fecha Inicial / Fecha Final | 2006-01-01 / 2021-01-01 |
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Datos del proyecto
Our goal is to monitor the dynamics of the benthic assemblage in Abrolhos reefs. We also expected to contribute to elucidate issues applied to conservation (e.g. effectiveness of different management regimes), and restoration (factors influencing resilience), as well as to explore broader theoretical issues.
Título | PELD ABROLHOS: MONITORAMENTO DO MAIOR COMPLEXO CORALÍNEO DO ATL NTICO SUL |
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Identificador | PELDABRS |
Fuentes de Financiación | CNPq, FAPERJ, FAPES |
Descripción del área de estudio | The Abrolhos Bank (16˚40’, 19˚40’S—39˚10’, 37˚20’W) is a 46,000 km2 shallow water (less tan 70 m depth) enlargement of the Eastern Brazilian shelf, off southern Bahia and northern Espírito Santo States. The region encompasses the largest and richest Southwestern Atlantic coral reefs. Emerging and quasi emerging reefs are distributed in two arcs (nearshoreand offshore, 10–20 km and 70 km from the shoreline, respectively), and are surrounded by soft sediments, rhodoliths and low-lying mesophotic reefs. Fringing reefs also occur around the five islands of the Abrolhos Archipelago. |
Descripción del diseño | Objectives: Evaluate the dynamics of benthic communities, associating them with climatic-oceanographic conditions. Assess impacts resulting from the Fundão Disaster. Evaluate chemical mediation in the structuring of reef communities and explore the biotechnological potential of selected species. Assess the dynamics of coral bleaching. |
Personas asociadas al proyecto:
Métodos de muestreo
We used fixed photo-quadrats demarcated with metal pins that are periodically replaced. Each benthic sampling unit is composed of a mosaic of 15 high resolution photos and covering ~70 cm2. Each sampling site has 10 sampling units. During the period monitored, some years and/or locations were not sampled due to logistical and funding constrains. Images were annotated semi-automatically with the deep neural network provided by the CoralNet platform*. Relative cover was estimated from the identification of benthic organisms below 30 random points distributed in each image (one photo-quadrat = a mosaic of 15 high resolution close-up images). Organisms were identified at nine broad taxonomic or functional groups and categorized either as slower-growing longer-lived reef builders [corals, crustose calcareous algae (CCA) and hydrocorals] or their faster-growing shorter-lived antagonists [(frondose macroalgae, turf, benthic cyanobacteria mats (BCM), zoanthids, sponges and “other organisms” (OO)]. * Beijbom O, Edmunds PJ, Roelfsema C, Smith J, Kline DI, Neal BP, et al. Towards automated annotation of benthic survey images: variability of human experts and operational modes of automation. PLoSOne. 2015; 10(7): e0130312. https://doi.org/10.1371/journal.pone.0130312 PMID: 26154157
Área de Estudio | Monitored sites include five reefs in the Abrolhos Archipelago, a set of small volcanic islands ~55 km off the coast and within the Marine National Park. Data has been acquired since 2006, mostly during the Austral summer. |
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Control de Calidad | We used an 80% confidence threshold (label accuracy: 95.4%, functional group accuracy: 96.9%, fraction above threshold: 53%) for the semi-automatic annotation carried out with the deep neural network of the CoralNet platform. |
Descripción de la metodología paso a paso:
- Benthic sampling is described in Teixeira et al. (2021).
Metadatos adicionales
Identificadores alternativos | 10.80366/gb111o |
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a8c87066-094f-44b1-9eb9-1f8e9394da01 | |
https://training-ipt-a.gbif.org/resource?r=peld_abrolhos_test |