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  • Algal cover; Arctic Ocean; Area; ARK-XXVII/3; Date/Time of event; Date/Time of event 2; Elevation of event; Elevation of event 2; Event label; Ice-station; Latitude of event; Latitude of event 2; Length of transect; Longitude of event; Longitude of event 2; Megafauna, biomass, wet mass; Megafauna, standard deviation; Megafauna abundance; Number of photos; Ocean Floor Observation System; OFOS; Polarstern; PS80/228-1; PS80/239-1; PS80/257-1; PS80/282-1; PS80/327-1; PS80/340-1; PS80/356-1; PS80/369-1; PS80/392-1; PS80 IceArc  (1)
  • Azores; Azores_FUNTraits_2023; FunAzores; functional diversity; Functional traits and ecological processes in the Azores Marine Park : Understanding the biodiversity-ecosystem functioning; hydrothermal deep sea vent; Literature search; Literature survey; Marine Protected Area (MPA); Seamount; trait-based ecology; trait diversity; trait ecology  (1)
Document type
Keywords
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  • 1
    facet.materialart.
    Unknown
    OFOS photographic survey transects characteristics, megabenthic communities characteristics, seafloor algae coverage and environmental conditions during POLARSTERN cruise PS80 (ARK-XXVII/3, IceArc) (2018)
    PANGAEA
    Details
    Publication Date: 2024-02-16
    Description: A photographic survey was carried out during the expedition ARK-XXVII/3 to the Nansen and Amundsen basins. The seafloor was photographed using a towed Ocean Floor Observation System (OFOS). Nine transects were performed: four in the Nansen Basin between 83-84°N and 18-110°E at depths 3571-4066 m, and five in the Amundsen Basin between 83-89°N and 56-131°E at depths 4041-4384 m. All images were analysed and stored using the image analysis program and database BIIGLE (www.BIIGLE.de). The laser points were used for calculation of the seafloor surface area on images. Visible megafauna was counted and identified to the lowest possible taxonomic level. The number of different taxa on each image was converted to individuals per m² (density). Total megafauna density (±standard deviation) was calculated for each transect. The mean taxa biomass per m² and the total megafauna biomass per m² were roughly estimated for each transect. The mean biomass (preserved wet weight) was calculated based on the wet weight of preserved individuals sampled by trawls. For taxa with insufficient trawl data the biomass was estimated using the biomass data of congeneric taxa or taxa with similar body shape; in some cases such taxa were excluded from analyses. The coverage of seafloor by algae aggregations and their remains was calculated based on sixty images at each transect using ImageJ software. Images for this analysis were chosen with equal spatial intervals depending on the total number of images within a transect. Several environmental parameters were measured at the ice stations.
    Keywords: Algal cover; Arctic Ocean; Area; ARK-XXVII/3; Date/Time of event; Date/Time of event 2; Elevation of event; Elevation of event 2; Event label; Ice-station; Latitude of event; Latitude of event 2; Length of transect; Longitude of event; Longitude of event 2; Megafauna, biomass, wet mass; Megafauna, standard deviation; Megafauna abundance; Number of photos; Ocean Floor Observation System; OFOS; Polarstern; PS80/228-1; PS80/239-1; PS80/257-1; PS80/282-1; PS80/327-1; PS80/340-1; PS80/356-1; PS80/369-1; PS80/392-1; PS80 IceArc
    Type: Dataset
    Format: text/tab-separated-values, 72 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    FUN Azores: A trait database for the marine species of the ridges, seamounts, and hydrothermal vents of the Azores, NE Atlantic (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: Trait-based approaches that complement taxonomic-based studies have increased in popularity among the scientific community over the last decades. The collection of biological and ecological characteristics of species (i.e., traits) provides insight into species and ecosystem vulnerability to environmental and anthropogenic changes, as well as ecosystem functioning. While most of the available trait databases to date contain essential information to understand the functional diversity of a taxonomic group or functional group based on size, the FUN Azores trait database has an ecosystem-based approach that provides a comprehensive assessment of diverse fauna (meio-, macro-, and megafauna) from benthic and pelagic environments in the Azores Marine Park; including ridges, seamounts, and hydrothermal vents. We used a collaborative approach involving 30 researchers with different expertise to develop the trait database; which contains compiled data on 14 traits representing morphological, behavioral, and life history characteristics for 1210 species, across 10 phyla.
    Keywords: Azores; Azores_FUNTraits_2023; FunAzores; functional diversity; Functional traits and ecological processes in the Azores Marine Park : Understanding the biodiversity-ecosystem functioning; hydrothermal deep sea vent; Literature search; Literature survey; Marine Protected Area (MPA); Seamount; trait-based ecology; trait diversity; trait ecology
    Type: Dataset
    Format: text/plain, 1.6 MBytes
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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