Descrição
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).
Registros de Dados
Os dados deste recurso de evento de amostragem 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 146 registros.
Também existem 2 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.
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.
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
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
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é 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 Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: aba69a99-f9c9-45c5-b82e-385a59c0a8ce. United States Geological Survey publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por GBIF-US.
Palavras-chave
Samplingevent
Contatos
- Provedor Dos Metadados ●
- Originador ●
- Ponto De Contato
http://orcid.org/0000-0001-8342-2222
- Originador
- Processador
- Processador
Cobertura Geográfica
West Florida Slope and Escarpment, Eastern Gulf of Mexico
| Coordenadas delimitadoras | Sul Oeste [25,922, -86,247], Norte Leste [27,98, -84,88] |
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Cobertura Taxonômica
Meiofauna (>32um) identified to higher taxon level (phylum), and Free-living Nematoda (nematodes, roundworms) identified to genus level.
| Filo | Arthropoda, Nematoda, Annelida, Platyhelminthes, Ciliophora, Loricifera, Kinorhyncha, Priapulida, Nemertea, Tardigrada, Gastrotricha, Cnidaria |
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Cobertura Temporal
| Data Inicial / Data final | 2019-10-01 / 2019-10-18 |
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Dados Sobre o Projeto
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.
| Título | Hydrodynamics & Habitat Suitability for Meiofauna And Corals (HydroSMAC) |
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| Identificador | NA180AR0110285 |
| Financiamento | This study is funded by NOAAs Office of Ocean Exploration and Research under project NA180AR0110285. |
| Descrição da Área de Estudo | 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. |
O pessoal envolvido no projeto:
Métodos de Amostragem
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
| Área de Estudo | 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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| Controle de Qualidade | 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. |
Descrição dos passos do método:
- See sampling description and quality control fields.
Dados de Coleção
| Nome da Coleção | 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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| Métodos de preservação do espécime | Formalina, Preparação microscópica |
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