説明
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.
データ レコード
この オカレンス（観察データと標本) リソース内のデータは、1 つまたは複数のデータ テーブルとして生物多様性データを共有するための標準化された形式であるダーウィン コア アーカイブ (DwC-A) として公開されています。 コア データ テーブルには、109 レコードが含まれています。
拡張データ テーブルは1 件存在しています。拡張レコードは、コアのレコードについての追加情報を提供するものです。 各拡張データ テーブル内のレコード数を以下に示します。
- Occurrence (コア)
- Multimedia
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バージョン
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引用方法
研究者はこの研究内容を以下のように引用する必要があります。:
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
権利
研究者は権利に関する下記ステートメントを尊重する必要があります。:
パブリッシャーとライセンス保持者権利者は Anadarko Colombia Company。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
GBIF登録
このリソースをはGBIF と登録されており GBIF UUID: 1452b04f-4352-43a4-9a51-c10c456cf6e9が割り当てられています。 Colombian Biodiversity Information System によって承認されたデータ パブリッシャーとして GBIF に登録されているAnadarko Colombia Company が、このリソースをパブリッシュしました。
キーワード
Occurrences; Observation; Cnidaria; Colombian Caribbean; Deep Sea
連絡先
リソースを作成した人:
リソースに関する質問に答えることができる人:
メタデータを記載した人:
地理的範囲
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.
| 座標（緯度経度） | 南 西 [9.27, -76.932], 北 東 [10.369, -76.481] |
|---|
生物分類学的範囲
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 |
時間的範囲
| 開始日 / 終了日 | 2015-02-24 / 2017-04-26 |
|---|
プロジェクトデータ
説明がありません
| タイトル | Aportes al conocimiento de la biodiversidad de aguas profundas del mar Caribe colombiano |
|---|---|
| Study Area Description | Caribe Colombiano |
| 研究の意図、目的、背景など（デザイン） | Asociadas a las características particulares de cada proyecto de exploración |
プロジェクトに携わる要員:
収集方法
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.
| Study Extent | 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. |
|---|---|
| Quality Control | 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. |
Method step description:
- 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/).
追加のメタデータ
| 代替識別子 | 10.15472/o8xonn |
|---|---|
| 1452b04f-4352-43a4-9a51-c10c456cf6e9 | |
| https://ipt.biodiversidad.co/sibm/resource?r=anadarko_colombia_002 |