說明
Meiofauna higher taxa density (abundance per m2), and Nematode genera counts (100-150 individuals per slice) from multiple corer samples (0-5 cm sediment depth, Ocean Instruments MC800) taken during 2019 Research Vessel Point Sur expedition (#PS20-8) to the West Florida Slope and Escarpment, Eastern Gulf of Mexico. Conducted under the auspices of the NOAA funded (NA180AR0110285) project: Combining habitat suitability and physical oceanography for targeted discovery of new benthic communities on the west Florida slope (Hydrosmac).
資料紀錄
此資源sampling event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 146 筆紀錄。
亦存在 2 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。
此 IPT 存放資料以提供資料儲存庫服務。資料與資源的詮釋資料可由「下載」單元下載。「版本」表格列出此資源的其它公開版本，以便利追蹤其隨時間的變更。
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。:
Ingels J, Brooke S (2022): Meiofauna and Nematode abundance from the West Florida Escarpment, NOAA Hydrosmac project. v1.0. United States Geological Survey. Dataset/Samplingevent. https://www1.usgs.gov/obis-usa/ipt/resource?r=noaa_hydrosmac_fl_meiofauna&v=1.0
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 United States Geological Survey。 To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF 註冊
此資源已向GBIF註冊，並指定以下之GBIF UUID: aba69a99-f9c9-45c5-b82e-385a59c0a8ce。 United States Geological Survey 發佈此資源，並經由GBIF-US同意向GBIF註冊成為資料發佈者。
關鍵字
Samplingevent
聯絡資訊
- 元數據提供者 ●
- 出處 ●
- 連絡人
http://orcid.org/0000-0001-8342-2222
- 出處
- 處理者
- 處理者
地理涵蓋範圍
West Florida Slope and Escarpment, Eastern Gulf of Mexico
| 界定座標範圍 | 緯度南界 經度西界 [25.922, -86.247], 緯度北界 經度東界 [27.98, -84.88] |
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分類群涵蓋範圍
Meiofauna (>32um) identified to higher taxon level (phylum), and Free-living Nematoda (nematodes, roundworms) identified to genus level.
| Phylum | Arthropoda, Nematoda, Annelida, Platyhelminthes, Ciliophora, Loricifera, Kinorhyncha, Priapulida, Nemertea, Tardigrada, Gastrotricha, Cnidaria |
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時間涵蓋範圍
| 起始日期 / 結束日期 | 2019-10-01 / 2019-10-18 |
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計畫資料
The eastern Gulf of Mexico (GOM) is dominated by a massive carbonate platform that slopes gently for over 200 km offshore before dipping sharply down to abyssal depths. The deep slope and escarpment of this platform is one of the least accessible places in the GOM; it is far from shore, very deep and is subject to high current conditions. Unlike the northern GOM, there has been little research effort in this region; however, in recent years several cruises (funded primarily by NOAA), conducted mapping and surveying of the west Florida slope (WFS) and in search of deep coral communities. The cruises revealed extensive deep coral habitats including large Lophelia reefs. Most of this work was on the upper slope (350-600 m). Further offshore, the slope steepens to form the WFE, which is virtually unexplored. The NOAA Ship Okeanos Explorer mapped and surveyed the WFE in 2014 and 2018, revealing dense coral communities, with different species assemblages from those on the upper slope. Pressure to protect DSC habitats has created a need to understand their distribution. To overcome the lack of data, modeling tools were developed that use data from known deep coral areas, and extrapolate those characteristics to unexplored areas. These Habitat Suitability Models are heavily influenced by coral records, so areas with limited data show low habitat suitability, which may not reflect the true distribution. These models may be further refined by incorporating coral-relevant variables such as current speed using data from oceanographic models. This combination of sophisticated models and known coral locations creates a more powerful predictive tool for science and management. From October 1st to 10th, a team of scientists from Florida State University (FSU), Florida Agricultural and Mechanical University (FAMU) and NOAA National Centers for Coastal Ocean Science (NCCOS), sailed aboard the Research Vessel Point Sur and used the Remotely Operated Vehicle (ROV) Global Explorer to study benthic communities off the West Florida Escarpment (WFE). Our objectives were to generate new data on distribution of coral species in this understudied area, and to assess whether we can use meiofauna communities as indicators of ambient current regimes. We will work with NOAA collaborators to incorporate our data into their Habitat Suitability Models and to ‘ground truth’ oceanographic current models.
| 計畫名稱 | Hydrodynamics & Habitat Suitability for Meiofauna And Corals (HydroSMAC) |
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| 辨識碼 | NA180AR0110285 |
| 經費來源 | This study is funded by NOAAs Office of Ocean Exploration and Research under project NA180AR0110285. |
| 研究區域描述 | Our mission focused on exploration of deep (>1,000m) habitats of the West Florida Escarpment, with particular emphasis on hard-bottom communities such as corals and sponges, and the tiny animals called meiofauna that live in sediments. |
參與計畫的人員:
取樣方法
Samples were taken using an Ocean Instruments MC800 multicorer and ROV push cores (USGS loan, operated by ROV Global Explorer). Sixty samples were completely processed for meiofauna higher taxa and nematode genus identification using morphological taxonomy, following standard scientific meiofauna protocols (32 – 500 micrometer) and the latest taxonomic literature. Samples contained 0-5 surface sediment from all relevant stations (1473-2267 m water depth range). A total of 20,927 individuals were identified to higher meiofauna taxon level (50% of the total yield was subsampled). Of these, 5,128 nematodes were identified to genus level. Twenty-two meiofauna groups were recognized. A total of 129 nematode genera were identified. Buffered formalin (10 % = 4% formaldehyde) sediment samples were used to extract the meiofauna using standard procedures (Heip et al., 1985; 32–500 μm sieves, LUDOX HS as centrifugation medium) to separate the organisms from the sediment particles. Fifty percent of all meiofauna were counted and between 100 and 150 nematode individuals were picked out randomly from each sample, transferred to anhydrous glycerol (Seinhorst, 1959) and mounted on slides. Meiofauna specimen preservation method: Buffered formalin (10%), stained with Rose Bengal Nematode Specimen preservation method: Buffered formalin (10%), stained with Rose Bengal, and mounted on glass slides with anhydrous glycerol
| 研究範圍 | Sediment samples were taken during the RV Point Sur expedition to the West Florida Slope and Escarpment, Eastern Gulf of Mexico (PS20-8, U. Southern Mississippi/LUMCON; IMO WSC2276) October 1-18, 2019. |
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| 品質控管 | All meiofauna were identified under a stereoscopic microscope (50x magnification), and nematodes were identified under a compound microscope (1000× magnification) to genus level using Platt and Warwick (1988), the latest taxonomic literature, and the NeMys nematode database and identification keys (nemys.ugent.be; linked to World Register of Marine Species). Specimens that could not be identified to the genus level were assigned to the appropriate higher taxon level. |
方法步驟描述:
- See sampling description and quality control fields.
收藏資料
| 蒐藏名稱 | Meiofauna and nematode samples from #PS20-8 NOAA Hydrosmac (NA180AR0110285) West Florida Slope and Escarpment, Eastern Gulf of Mexico, held at Florida State University Coastal and Marine Laboratory, St Teresa, Florida, USA |
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| 標本保存方法 | Formalin, Microscopic preparation |
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