說明
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.
資料紀錄
此資源出現紀錄的資料已發佈為達爾文核心集檔案（DwC-A），其以一或多組資料表構成分享生物多樣性資料的標準格式。 核心資料表包含 109 筆紀錄。
亦存在 1 筆延伸集的資料表。延伸集中的紀錄補充核心集中紀錄的額外資訊。 每個延伸集資料表中資料筆數顯示如下。
- Occurrence (核心)
- Multimedia
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下載
下載最新版本的 Darwin Core Archive (DwC-A) 資源，或資源詮釋資料的 EML 或 RTF 文字檔。
版本
以下的表格只顯示可公開存取資源的已發布版本。
如何引用
研究者應依照以下指示引用此資源。:
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
權利
研究者應尊重以下權利聲明。:
此資料的發布者及權利單位為 Anadarko Colombia Company。 This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: 1452b04f-4352-43a4-9a51-c10c456cf6e9。 Anadarko Colombia Company 發佈此資源，並經由Colombian Biodiversity Information System同意向GBIF註冊成為資料發佈者。
關鍵字
Occurrences; Observation; Cnidaria; Colombian Caribbean; Deep Sea
聯絡資訊
資源建立者:
可回覆此資源相關問題者:
元數據填寫者:
地理涵蓋範圍
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.
| 界定座標範圍 | 緯度南界 經度西界 [9.27, -76.932], 緯度北界 經度東界 [10.369, -76.481] |
|---|
分類群涵蓋範圍
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 |
時間涵蓋範圍
| 起始日期 / 結束日期 | 2015-02-24 / 2017-04-26 |
|---|
計畫資料
無相關描述
| 計畫名稱 | Aportes al conocimiento de la biodiversidad de aguas profundas del mar Caribe colombiano |
|---|---|
| 研究區域描述 | Caribe Colombiano |
| 研究設計描述 | Asociadas a las características particulares de cada proyecto de exploración |
參與計畫的人員:
取樣方法
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.
| 研究範圍 | 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. |
|---|---|
| 品質控管 | 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. |
方法步驟描述:
- 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/).
額外的詮釋資料
| 替代的識別碼 | 10.15472/o8xonn |
|---|---|
| 1452b04f-4352-43a4-9a51-c10c456cf6e9 | |
| https://ipt.biodiversidad.co/sibm/resource?r=anadarko_colombia_002 |