PELD - ABRS | Avaliação e monitoramento dos recifes de Abrolhos

Occurrence
Dernière version Publié par Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr le mai 23, 2024 Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr
Accueil:
http://www.abrolhos.org
Date de publication:
23 mai 2024
Licence:
CC-BY-NC 4.0

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Description

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

Enregistrements de données

Les données de cette ressource occurrence ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 1 656 enregistrements.

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

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Comment citer

Les chercheurs doivent citer cette ressource comme suit:

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

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est Sistema de Informação sobre a Biodiversidade Brasileira - SiBBr. Ce travail est sous licence Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0.

Enregistrement GBIF

Cette ressource n'a pas été enregistrée sur le portail GBIF

Mots-clé

Samplingevent; Abrolhos; Coral Reefs; Brazil; Occurrence

Contacts

Rodrigo Leão de Moura
  • Créateur ●
  • Utilisateur ●
  • Personne De Contact
  • Professor
Universidade Federal do Rio de Janeiro
BR
Jana Menegassi del Favero
  • Fournisseur Des Métadonnées
  • Post doctoral researcher
Universidade Federal do Rio de Janeiro
BR
Carolina D’Ornellas Teixeira
  • Fournisseur Des Métadonnées ●
  • Créateur
  • Technician
Universidade Federal do Rio de Janeiro
Jana Menegassi del Favero
  • Fournisseur Des Métadonnées
  • Post doctoral researcher
Universidade Federal do Rio de Janeiro
BR

Couverture géographique

Data sampled in Abrolhos Marine National Park, Bahia, Brazil

Enveloppe géographique Sud Ouest [-17,973, -38,715], Nord Est [-17,959, -38,69]

Couverture taxonomique

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

Couverture temporelle

Date de début / Date de fin 2006-01-01 / 2021-01-01

Données sur le projet

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.

Titre PELD ABROLHOS: MONITORAMENTO DO MAIOR COMPLEXO CORALÍNEO DO ATL NTICO SUL
Identifiant PELDABRS
Financement CNPq, FAPERJ, FAPES
Description du domaine d'étude / de recherche 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.
Description du 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.

Les personnes impliquées dans le projet:

Rodrigo Leão de Moura
  • Chercheur Principal

Méthodes d'échantillonnage

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

Etendue de l'étude 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.
Contrôle qualité 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.

Description des étapes de la méthode:

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

Métadonnées additionnelles

Identifiants alternatifs 10.80366/gb111o
a8c87066-094f-44b1-9eb9-1f8e9394da01
https://training-ipt-a.gbif.org/resource?r=peld_abrolhos_test