PELD - ABRS | Avaliação e monitoramento dos recifes de Abrolhos

Occurrence
最新版本 published by Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr on 5月 23, 2024 Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr
首頁:
http://www.abrolhos.org
發布日期:
2024年5月23日
授權條款:
CC-BY-NC 4.0

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說明

Relative annual coverage (percentage) of the different benthic groups presents in the Abrolhos Archipelago, starting in 2006.

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版本

以下的表格只顯示可公開存取資源的已發布版本。

如何引用

研究者應依照以下指示引用此資源。:

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

權利

研究者應尊重以下權利聲明。:

此資料的發布者及權利單位為 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 註冊

此資源尚未向GBIF註冊

關鍵字

Samplingevent; Abrolhos; Coral Reefs; Brazil; Occurrence

聯絡資訊

Rodrigo Leão de Moura
  • 出處 ●
  • 使用者 ●
  • 連絡人
  • Professor
Universidade Federal do Rio de Janeiro
BR
Jana Menegassi del Favero
  • 元數據提供者
  • Post doctoral researcher
Universidade Federal do Rio de Janeiro
BR
Carolina D’Ornellas Teixeira
  • 元數據提供者 ●
  • 出處
  • Technician
Universidade Federal do Rio de Janeiro
Jana Menegassi del Favero
  • 元數據提供者
  • Post doctoral researcher
Universidade Federal do Rio de Janeiro
BR

地理涵蓋範圍

Data sampled in Abrolhos Marine National Park, Bahia, Brazil

界定座標範圍 緯度南界 經度西界 [-17.973, -38.715], 緯度北界 經度東界 [-17.959, -38.69]

分類群涵蓋範圍

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)

Genus Agaricia, Millepora, Porites, Siderastrea
Species 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.

Order Zoantharia

Crustose Calcareous Algae (CCA)

Unranked CCA

Benthic cyanobacteria mats

Phylum Cyanobacteria

Includes all encrusting sponges

Unranked Encrusting sponge

Includes all species of macroalgae

Unranked Macroalgae

Includes all massive sponges

Unranked Massive sponge

Includes octocorals, bryozoans, ascidians, polychaetes, anemones

Unranked Other organisms

Includes all boring sponges

Unranked Perforating sponge

Includes sediment and dead organisms

Unranked Substrate/Dead

Turf

Unranked Turf

時間涵蓋範圍

起始日期 / 結束日期 2006-01-01 / 2021-01-01

計畫資料

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.

計畫名稱 PELD ABROLHOS: MONITORAMENTO DO MAIOR COMPLEXO CORALÍNEO DO ATL NTICO SUL
辨識碼 PELDABRS
經費來源 CNPq, FAPERJ, FAPES
研究區域描述 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.
研究設計描述 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.

參與計畫的人員:

Rodrigo Leão de Moura
  • 研究主持人

取樣方法

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

研究範圍 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.
品質控管 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.

方法步驟描述:

  1. Benthic sampling is described in Teixeira et al. (2021).

額外的詮釋資料

替代的識別碼 10.80366/gb111o
a8c87066-094f-44b1-9eb9-1f8e9394da01
https://training-ipt-a.gbif.org/resource?r=peld_abrolhos_test