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

Registros

Los datos en este recurso de evento de muestreo 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 20 registros.

también existen 3 tablas de datos de extensiones. Un registro en una extensión provee información adicional sobre un registro en el core. El número de registros en cada tabla de datos de la extensión se ilustra a continuación.

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:

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

Derechos

Los usuarios deben respetar los siguientes derechos de uso:

El publicador y propietario de los derechos de este trabajo es SCAR - AntOBIS. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento (CC-BY 4.0).

Registro GBIF

Este recurso ha sido registrado en GBIF con el siguiente UUID: a6f7215c-8238-4f45-8125-274a2b71e6bc.  SCAR - AntOBIS publica este recurso y está registrado en GBIF como un publicador de datos avalado por Ocean Biodiversity Information System.

Palabras clave

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

Contactos

Cobertura geográfica

Lambda Island, Melchior Islands, Western Antarctic Peninsula

Cobertura taxonómica

No hay descripción disponible

Cobertura temporal

Datos del proyecto

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.

Personas asociadas al proyecto:

Métodos de muestreo

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.

Descripción de la metodología paso a paso:

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.

Referencias bibliográficas

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

Metadatos adicionales