Description
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.
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 109 enregistrements.
1 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.
- Occurrence (noyau)
- Multimedia
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.
Téléchargements
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 109 enregistrements dans Anglais (17 kB) - Fréquence de mise à jour: inconnue |
|---|---|
| Métadonnées sous forme de fichier EML | télécharger dans Anglais (17 kB) |
| Métadonnées sous forme de fichier RTF | télécharger dans Anglais (13 kB) |
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:
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
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Anadarko Colombia Company. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
Enregistrement GBIF
Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : 1452b04f-4352-43a4-9a51-c10c456cf6e9. Anadarko Colombia Company publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du Colombian Biodiversity Information System.
Mots-clé
Occurrences; Observation; Cnidaria; Colombian Caribbean; Deep Sea
Contacts
Personne ayant créé cette ressource:
Personne pouvant répondre aux questions sur la ressource:
Personne ayant renseigné les métadonnées:
Couverture géographique
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.
| Enveloppe géographique | Sud Ouest [9,27, -76,932], Nord Est [10,369, -76,481] |
|---|
Couverture taxonomique
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 |
|---|---|
| Order | Narcomedusae, Actiniaria, Ceriantharia |
| Family | Semaeostomeae, Rhopalonematidae, Hormathiidae, Kadosactinidae, Virgulariidae, Chrysogorgiidae |
| Genus | Corallimorphus, Umbellula, Adamsia, Phelliactis |
| Species | Poralia rufescens, Bathypathes patula, Trichogorgia lyra, Epizoanthus stellaris |
Couverture temporelle
| Date de début / Date de fin | 2015-02-24 / 2017-04-26 |
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Données sur le projet
Pas de description disponible
| Titre | Aportes al conocimiento de la biodiversidad de aguas profundas del mar Caribe colombiano |
|---|---|
| Description du domaine d'étude / de recherche | Caribe Colombiano |
| Description du design | Asociadas a las características particulares de cada proyecto de exploración |
Les personnes impliquées dans le projet:
Méthodes d'échantillonnage
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.
| Etendue de l'étude | 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. |
|---|---|
| Contrôle qualité | 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. |
Description des étapes de la méthode:
- 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/).
Métadonnées additionnelles
| Identifiants alternatifs | 10.15472/o8xonn |
|---|---|
| 1452b04f-4352-43a4-9a51-c10c456cf6e9 | |
| https://ipt.biodiversidad.co/sibm/resource?r=anadarko_colombia_002 |