Descripción
Interest in the deep seas has increased dramatically in the last decade, due to the potential presence of natural resources. Although Colombia holds a large submerged territory, knowledge of the seabed and its biodiversity beyond a depth of 1000 meters is very limited. During 2015-2017, Anadarko Colombia Company (ACC) carried out hydrocarbon exploratory activities in the Southern Colombian Caribbean, at depths between 375 m and 2500 m. As an opportunistic result from these activities, several organisms from different phyla were spotted in ROV and towed camera surveys. We analysed a total of 9h 9min 26sec of video and 5066 photographs, looking for benthic and pelagic megafauna. The images were separated by Phylum and Class, and the cnidarians were identified to the lowest possible taxonomic level. The data presented here corresponds to 108 occurrences of deep-sea cnidarians and one ctenophore. This is the first of a series of datasets reporting visual confirmations on the occurrences of deep-sea organisms in the Colombian Caribbean.
Registros
Los datos en este recurso de registros biológicos 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 109 registros.
también existen 1 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.
- Occurrence (core)
- Multimedia
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.
Descargas
Descargue la última versión de los datos como un Archivo Darwin Core (DwC-A) o los metadatos como EML o RTF:
Versiones
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¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
Dueñas L F, Puentes V (2018): First visual occurrence data for deep-sea cnidarians in the South-western Colombian Caribbean. v1.1. Anadarko Colombia Company. Dataset/Occurrence. https://doi.org/10.15472/o8xonn
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es Anadarko Colombia Company. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 1452b04f-4352-43a4-9a51-c10c456cf6e9. Anadarko Colombia Company publica este recurso, y está registrado en GBIF como un publicador de datos avalado por Colombian Biodiversity Information System.
Palabras clave
Occurrences; Observation; Cnidaria; Colombian Caribbean; Deep Sea
Contactos
¿Quién creó el recurso?:
¿Quién puede resolver dudas acerca del recurso?:
¿Quién documentó los metadatos?:
Cobertura geográfica
Anadarko Colombia Company’s hydrocarbon exploratory activities in the Southwestern Colombian Caribbean, include four wells (i.e. Gorgon A-1, Calasu 1, Kronos 1, and Purple Angel C-1), and five other areas of interest (i.e. Chamana, Chamai, Yaduli, Cana Norte, and Cawa). The exploratory wells and areas of interest are localized in the South-western Colombian Caribbean, at depths between 375 m and 2500 m. In general, wells and areas of interest are approximately 54 to 74 off shore from the nearest point in the Caribbean coast of Colombia.
| Coordenadas límite | Latitud Mínima Longitud Mínima [9,27, -76,932], Latitud Máxima Longitud Máxima [10,369, -76,481] |
|---|
Cobertura taxonómica
The data presented here corresponds to occurrences of deep-sea Cnidarians and one Ctenophore from the South-western Colombian Caribbean, spotted over soft bottoms at depths between 375 to 2565 m.
| Class | Hydrozoa |
|---|---|
| Orden | Narcomedusae, Actiniaria, Ceriantharia |
| Familia | Semaeostomeae, Rhopalonematidae, Hormathiidae, Kadosactinidae, Virgulariidae, Chrysogorgiidae |
| Género | Corallimorphus, Umbellula, Adamsia, Phelliactis |
| Especie | Poralia rufescens, Bathypathes patula, Trichogorgia lyra, Epizoanthus stellaris |
Cobertura temporal
| Fecha Inicial / Fecha Final | 2015-02-24 / 2017-04-26 |
|---|
Datos del proyecto
No hay descripción disponible
| Título | Aportes al conocimiento de la biodiversidad de aguas profundas del mar Caribe colombiano |
|---|---|
| Descripción del área de estudio | Caribe Colombiano |
| Descripción del diseño | Asociadas a las características particulares de cada proyecto de exploración |
Personas asociadas al proyecto:
Métodos de muestreo
Occurrences of cnidarians were registered from ROV surveys and towed camera surveys using videos and still images. Sampling included soft bottoms in the Colombian Caribbean from 375 m to 2500 m.
| Área de Estudio | Anadarko Colombia Company’s hydrocarbon exploratory activities in the Southwestern Colombian Caribbean, include four wells (i.e. Gorgon A-1, Calasu 1, Kronos 1, and Purple Angel C-1), and five other areas of interest (i.e. Chamana, Chamai, Yaduli, Cana Norte, and Cawa). The exploratory wells and areas of interest are localized in the South-western Colombian Caribbean, at depths between 375 m and 2500 m. In general, wells and areas of interest are approximately 54 to 74 off shore from the nearest point in the Caribbean coast of Colombia. |
|---|---|
| Control de Calidad | Videos were analyzed twice for the presence of cnidarians, by two different experts in different times. This methodology allowed us to ensure all cnidarians were registered. Still images were also analyzed twice by the same expert, who did a preliminary identification to Phylum and Class. All cnidarian images were then identified to the lowest possible taxonomic level, and when in doubt of an identification, we sent the images to additional experts. Photographs were cropped to include only the organism, and we performed image correction to reduce the blueish colour cast with the Auto Tone function in Adobe Photoshop CC 2018. |
Descripción de la metodología paso a paso:
- ROV surveys ROV video surveys consisted of 80 meter-long transects in cross fashion, north, south, east, and west, from a central point that could be a transponder (tool for positioning of the drilling vessel) or the exact drilling location. Video-transects mainly included soft bottom images and few of them recorded pelagic megafauna. Videos were taken before and after drilling for the wells Kronos 1, Calasu 1, Gorgon A-1, and Purple Angel C-1. Additionally, for Kronos 1 and Calasu 1 there was a video survey during drilling. We analysed 48 video transects (duration: 9h 9min 26sec), looking for benthic and pelagic fauna. We took snapshots of each organism (cnidarian and non-cnidarian), registered coordinates and depth, and identified to the lowest possible taxonomic level. Towed camera surveys Areas of interest (i.e. Chamana, Chamai, Yaduli, Cana Norte, and Cawa) were assessed using twenty-five (25) towed camera transects. These transects registered seafloor features, during a 3-hour survey and taking still images every 20 seconds. Benthic and pelagic megafauna were recorded in the images. We analysed a total of 5066 photographs, looking for benthic and pelagic fauna. For each organism (cnidarian and non-cnidarian) coordinates and depth were registered, and identified to the lowest possible taxonomic level. We cropped the photographs to include only the organism, and performed image correction to reduce the blueish colour cast with the Auto Tone function in Adobe Photoshop CC 2018. Taxonomic identifications Using photographs and video footage, all the organisms were grouped to Phylum and Class. In this paper, we only highlight the occurrences for the Phylum Cnidaria. Cnidarians were further identified to the lowest possible taxonomic level, based on comparison with literature, databases and with the help of taxonomic experts from each group. The taxonomy here presented is in accordance to the World Register of Marine Species – WORMS (http://www.marinespecies.org/).
Metadatos adicionales
| Identificadores alternativos | 10.15472/o8xonn |
|---|---|
| 1452b04f-4352-43a4-9a51-c10c456cf6e9 | |
| https://ipt.biodiversidad.co/sibm/resource?r=anadarko_colombia_002 |