Descrição
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 de Dados
Os dados deste recurso de ocorrência foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 109 registros.
Também existem 1 tabelas de dados de extensão. Um registro de extensão fornece informações adicionais sobre um registro do núcleo. O número de registros em cada tabela de dados de extensão é ilustrado abaixo.
- Occurrence (core)
- Multimedia
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Downloads
Baixe a última versão do recurso de dados, como um Darwin Core Archive (DwC-A) ou recurso de metadados, como EML ou RTF:
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
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
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é Anadarko Colombia Company. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
GBIF Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 1452b04f-4352-43a4-9a51-c10c456cf6e9. Anadarko Colombia Company publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Colombian Biodiversity Information System.
Palavras-chave
Occurrences; Observation; Cnidaria; Colombian Caribbean; Deep Sea
Contatos
Quem criou esse recurso:
Quem pode responder a perguntas sobre o recurso:
Quem preencher os metadados:
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 delimitadoras | Sul Oeste [9,27, -76,932], Norte Leste [10,369, -76,481] |
|---|
Cobertura Taxonômica
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 |
|---|---|
| Ordem | Narcomedusae, Actiniaria, Ceriantharia |
| Família | Semaeostomeae, Rhopalonematidae, Hormathiidae, Kadosactinidae, Virgulariidae, Chrysogorgiidae |
| Gênero | Corallimorphus, Umbellula, Adamsia, Phelliactis |
| Espécie | Poralia rufescens, Bathypathes patula, Trichogorgia lyra, Epizoanthus stellaris |
Cobertura Temporal
| Data Inicial / Data final | 2015-02-24 / 2017-04-26 |
|---|
Dados Sobre o Projeto
Nenhuma descrição disponível
| Título | Aportes al conocimiento de la biodiversidad de aguas profundas del mar Caribe colombiano |
|---|---|
| Descrição da Área de Estudo | Caribe Colombiano |
| Descrição do Design | Asociadas a las características particulares de cada proyecto de exploración |
O pessoal envolvido no projeto:
Métodos de Amostragem
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 Estudo | 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. |
|---|---|
| Controle de Qualidade | 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. |
Descrição dos passos do método:
- 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/).
Metadados Adicionais
| Identificadores alternativos | 10.15472/o8xonn |
|---|---|
| 1452b04f-4352-43a4-9a51-c10c456cf6e9 | |
| https://ipt.biodiversidad.co/sibm/resource?r=anadarko_colombia_002 |