Submersible Gathered Evidence of a Vulnerable Marine Ecosystem at the Melchior Islands, Western Antarctic Peninsula (Subarea 48.1)

Données d'échantillonnage
Dernière version Publié par SCAR - AntOBIS le juin 26, 2024 SCAR - AntOBIS
Date de publication:
26 juin 2024
Publié par:
SCAR - AntOBIS
Licence:
CC-BY 4.0

Téléchargez la dernière version de la ressource en tant qu'Archive Darwin Core (DwC-A), ou les métadonnées de la ressource au format EML ou RTF :

Données sous forme de fichier DwC-A (zip) télécharger 20 enregistrements dans Anglais (11 KB) - Fréquence de mise à jour: inconnue
Métadonnées sous forme de fichier EML télécharger dans Anglais (33 KB)
Métadonnées sous forme de fichier RTF télécharger dans Anglais (17 KB)

Description

Imagery to support a proposed VME based on high abundances of VME indicator taxa that fall within the range of previously registered VMEs. The site is off the east coast of Lambda Island, Melchior Islands, Western Antarctic Peninsula. Video imagery was taken via submersible deployed by Seabourn Venture crewed by scientist and volunteer citizen science pilots. Data on the relative percent cover of all VME indicator taxa was sourced and analysed in the same manner as VMEs added to CCAMLR’s registry in 2018 (SC-CCAMLR-XXXVII) and 2022 (SC-CCAMLR-41) using all data from WG-EMM-18/35, WG-EMM-22/34Rev1 and WG-EMM-22/46Rev1 for a direct comparison. The present site clusters with previously registered VMEs. The site supports many large hexactinellid sponges and small bamboo corals. Notable also, is the presence of the rare and little-known hydroid, Candelabrum sp. – a VME indicator taxa that is particularly vulnerable to fishing gear as they can extend metres into the water column.

This dataset is published as open data with technical support provided by SCAR Antarctic Biodiversity Portal (biodiversity.aq) (BELSPO project RT/23/ADVANCE). Please follow the guidelines from the SCAR Data Policy (SCAR, 2023) when using the data. Please contact us via the contact information provided in the metadata or via data-biodiversity-aq@naturalsciences.be for any inquiry about this dataset. Issues with dataset can be reported at https://github.com/biodiversity-aq/data-publication/

Enregistrements de données

Les données de cette ressource données d'échantillonnage 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 20 enregistrements.

3 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

Event (noyau)
20
ExtendedMeasurementOrFact 
51
Occurrence 
29
Multimedia 
18

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

Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.

Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Lockhart S, Potter S, Gan Y (2024). Submersible Gathered Evidence of a Vulnerable Marine Ecosystem at the Melchior Islands, Western Antarctic Peninsula (Subarea 48.1). Version 1.6. SCAR - AntOBIS. Samplingevent dataset. https://ipt-obis.gbif.us/resource?r=emm4_vme-melchior-islands&v=1.6

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est SCAR - AntOBIS. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : a6f7215c-8238-4f45-8125-274a2b71e6bc.  SCAR - AntOBIS publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Ocean Biodiversity Information System.

Mots-clé

Samplingevent; Observation; CCAMLR; ANTARCTICA; SPONGES; VULNERABLE MARINE ECOSYSTEM; VME; HYDROIDS; CORALS; INDICATOR TAXA

Contacts

Susanne Lockhart
  • Fournisseur Des Métadonnées
  • Créateur
  • Personne De Contact
Southern Benthics
US
Shaylyn Potter
  • Créateur
Yi-Ming Gan
  • Fournisseur Des Métadonnées
  • Personne De Contact
Royal Belgian Institute of Natural Sciences
BE

Couverture géographique

Lambda Island, Melchior Islands, Western Antarctic Peninsula

Enveloppe géographique Sud Ouest [-64,302, -62,961], Nord Est [-64,302, -62,961]

Couverture taxonomique

Pas de description disponible

Kingdom Chromista, Animalia
Phylum Mollusca, Arthropoda, Porifera, Annelida, Brachiopoda, Chordata, Hemichordata, Foraminifera, Cnidaria, Bryozoa, Echinodermata
Class Demospongiae, Hydrozoa, Pterobranchia, Thecostraca, Xenophyophorea, Polychaeta, Hexacorallia, Bivalvia, Ascidiacea, Octocorallia, Echinoidea, Hexactinellida, Ophiuroidea, Crinoidea
Order Scleractinia, Pectinida, Zoantharia, Hydroida, Balanomorpha, Malacalcyonacea, Scleralcyonacea, Cidaroida, Euryalida, Anthoathecata, Sabellida, Antipatharia, Pennatulacea
Family Stylasteridae, Primnoidae, Coralliidae, Serpulidae, Isididae, Candelabridae, Bathylasmatidae, Paragorgiidae, Acanthogorgiidae, Actinacididae, Pectinidae, Chrysogorgiidae

Couverture temporelle

Date de début 2024-01-17

Données sur le projet

A novel collaboration between commercial submersible pilots, and their organizations, with Southern Benthics to provide footage of the seabed around Antarctica for the purposes of securing protection for VMEs, and for monitoring the health of those VMEs in the long term in the face of the climate crisis.

Titre Citizen Science Submersible Program
Financement ASOC; The Soap & The Sea

Les personnes impliquées dans le projet:

Susanne Lockhart
  • Chercheur Principal

Méthodes d'échantillonnage

Sampling was conducted by U Boat Worx Cruise Sub-7, recording imagery with Panasonic AW-UE150KEJ 4K Integrated PTZ camera operated with a Panasonic AW-RP60GJ remote camera controller.

Etendue de l'étude This database pertains to one dive site (Lambda Island, Melchior Islands, Western Antarctic Peninsula), proposed as a VME for inclusion in CCAMLR’s VME Registry.
Contrôle qualité - All records were validated. - Coordinates were converted into decimal latitude and decimal -longitude and plotted on map to verify the actual geographical location corresponds to its locality. - All scientific names were checked for typo and matched to the species information backbone of Worlds Register of Marine Species (http://marinespecies.org/) and LSID were assigned to each taxa as scientificNameID whenever possible. - Event date and time were converted into ISO 8601 and verified with the data providers.

Description des étapes de la méthode:

  1. DaVinci Resolve 18 was used to combine separate files where necessary and for editing.
  2. Clean-up followed the same methodology as was used for analyzing the submarine footage for the successful nomination of VMEs in WG-EMM-22/46Rev1 to remove unusable sequences. For the Lambda Is footage that meant the removal of any sequences where the submersible was too far from the wall, where the visibility was poor and when the submersible was stationary. Footage from Dive A was the longest resulting video after the completion of this clean-up procedure (Table 1), thus it became the footage that was analysed.
  3. Footage was color adjusted within DaVinci Resolve 18.
  4. The analysis methodology also followed that which was used in WG-EMM-22/46Rev1. To compare the relative percent abundance of VME indicator taxa to that of non-VME taxa and bare substrate at the Lambda Is site, frames were exported at regular intervals (30 secs) beginning at 0:00.
  5. The resulting series of images were then imported into the program PAPARA(ZZ)I (Marcon & Purser, 2017). Within this program images were further enhanced by adjusting brightness, contrast and gamma. As recommended by the authors, the usable area was then defined for each image allowing the exclusion of dark or blurred edges.
  6. Once images were prepared in this way, an array of 100 random points was overlayed. Each point in each image was assigned one of three designations: VME indicator taxa, non-VME taxa or bare substrate.

Citations bibliographiques

  1. SC-CAMLR-XXXVII (2018) Thirty-seventh Meeting of the Scientific Committee. CCAMLR. Hobart, Australia.
  2. SC-CAMLR-41 (2022) Forty-first meeting of the Scientific Committee. CCAMLR. Hobart, Australia.
  3. WG-EMM-18/35. Lockhart, S. & J. Hocevar (2018) Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1). CCAMLR. Hobart, Australia.
  4. WG-EMM-22/34Rev1. Lockhart, S. & R. Izendooren (2022) Evidence of a Vulnerable Marine Ecosystem documented via tourist submarine off Cape Well-Met, Vega Island, Eastern Antarctic Peninsula (Subarea 48.1). CCAMLR. Hobart, Australia.
  5. WG-EMM-22/46Rev1. Lockhart, S., R. Downey, R. García-Roa, J. Hocevar & L. Weller (2022) Vulnerable Marine Ecosystems documented via submarine in the Bransfield Strait and the Eastern Antarctic Peninsula (Subarea 48.1). CCAMLR. Hobart, Australia.
  6. Marcon, Y. and Purser A. (2017) PAPARA(ZZ)I: An open-source software interface for annotating photographs of the deep-sea. SoftwareX. 6, 69-80.
  7. The Scientific Committee on Antarctic Research. (2023). SCAR Report 42 - September 2022 - SCAR Data Policy (2022). Zenodo. https://doi.org/10.5281/zenodo.7825314
  8. Lockhart, Susanne, Shaylyn Potter, Chris Venus, Kara Weller, and Remy Izendooren. “Submersible Gathered Evidence of a Vulnerable Marine Ecosystem at the Melchior Islands, Western Antarctic Peninsula (subarea 48.1) - Multimedia”. Zenodo, June 26, 2024. https://doi.org/10.5281/zenodo.12545505

Métadonnées additionnelles

Identifiants alternatifs a6f7215c-8238-4f45-8125-274a2b71e6bc
https://ipt-obis.gbif.us/resource?r=emm4_vme-melchior-islands