Descrição
Relative annual coverage (percentage) of the different benthic groups presents in the Abrolhos Archipelago, starting in 2006.
Registros de Dados
Os dados deste recurso de ocorrência 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 1.656 registros.
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:
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
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF Registration
Este recurso não foi registrado pelo GBIF
Palavras-chave
Samplingevent; Abrolhos; Coral Reefs; Brazil; Occurrence
Contatos
- Originador ●
- Usuário ●
- Ponto De Contato
- Professor
- Provedor Dos Metadados
- Post doctoral researcher
- Provedor Dos Metadados ●
- Originador
- Technician
- Provedor Dos Metadados
- Post doctoral researcher
Cobertura Geográfica
Data sampled in Abrolhos Marine National Park, Bahia, Brazil
Coordenadas delimitadoras | Sul Oeste [-17,973, -38,715], Norte Leste [-17,959, -38,69] |
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Cobertura Taxonômica
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)
Gênero | Agaricia, Millepora, Porites, Siderastrea |
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Espécie | 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.
Ordem | 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
Data Inicial / Data final | 2006-01-01 / 2021-01-01 |
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Dados Sobre o Projeto
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 |
Financiamento | CNPq, FAPERJ, FAPES |
Descrição da Área de Estudo | 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. |
Descrição do Design | 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. |
O pessoal envolvido no projeto:
Métodos de Amostragem
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 Estudo | 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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Controle de Qualidade | 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. |
Descrição dos passos do método:
- Benthic sampling is described in Teixeira et al. (2021).
Metadados Adicionais
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 |