Publication Date:
2023-07-14
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. Taxonomic identifications were made with the assistance of experts. The following taxa/organisms were excluded from statistical analyses: infauna represented only by surface traces, gelatinous zooplankton, small-size organisms (〈 1 cm) and organisms that could not be identified at least to the phylum level.
Keywords:
Abietinaria cf. pulchra; Abietinaria cf. pulchra, standard deviation; Actiniaria; Actiniaria, standard deviation; Amphipoda; Amphipoda, standard deviation; Arctic Ocean; ARK-XXVII/3; Ascorhynchus abyssi; Ascorhynchus abyssi, standard deviation; Bathycrinus carpenterii; Bathycrinus carpenterii, standard deviation; Bathyphellia margaritacea; Bathyphellia margaritacea, standard deviation; Bathypolaria carinata; Bathypolaria carinata, standard deviation; Bythocaris curvirostris; Bythocaris curvirostris, standard deviation; Caulophacus arcticus; Caulophacus arcticus, standard deviation; Ceriantharia; Ceriantharia, standard deviation; Cerianthus sp.; Cerianthus sp., standard deviation; Chauvinelia arctica; Chauvinelia arctica, standard deviation; Cladorhizidae; Cladorhizidae, standard deviation; Date/Time of event; Date/Time of event 2; Dinonemertes sp.; Dinonemertes sp., standard deviation; Elevation of event; Elevation of event 2; Elpidia heckeri; Elpidia heckeri, standard deviation; Enteropneusta; Enteropneusta, standard deviation; Eucratea loricata; Eucratea loricata, standard deviation; Eurycope inermis; Eurycope inermis, standard deviation; Eurythenes gryllus; Eurythenes gryllus, standard deviation; Event label; Garveia sp.; Garveia sp., standard deviation; Halice sp.; Halice sp., standard deviation; Halirages qvadridentatus; Halirages qvadridentatus, standard deviation; Hyalopomatus claparedii; Hyalopomatus claparedii, standard deviation; Ice-station; Katadesmia kolthoffi; Katadesmia kolthoffi, standard deviation; Kolga hyalina; Kolga hyalina, standard deviation; Latitude of event; Latitude of event 2; Longitude of event; Longitude of event 2; Lysianassoidea; Lysianassoidea, standard deviation; Macellicephalinae; Macellicephalinae, standard deviation; Mohnia sp.; Mohnia sp., standard deviation; Munnopsidae; Munnopsidae, standard deviation; Mysidae; Mysidae, standard deviation; Naticidae; Naticidae, standard deviation; Neogastropoda; Neogastropoda, standard deviation; Oceanactis bursifera; Oceanactis bursifera, standard deviation; Ocean Floor Observation System; OFOS; Onisimus leucopis; Onisimus leucopis, standard deviation; Ophiostriatus striatus; Ophiostriatus striatus, standard deviation; Polarstern; Porifera; Porifera, standard deviation; Potamethus malmgreni; Potamethus malmgreni, standard deviation; 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; Pseudosagitta maxima; Pseudosagitta maxima, standard deviation; Sertulariidae; Sertulariidae, standard deviation; Symplectoscyphus tricuspidatus; Symplectoscyphus tricuspidatus, standard deviation; Thenea abyssorum; Thenea abyssorum, standard deviation; Tubularia regalis; Tubularia regalis, standard deviation; Tubulariidae; Tubulariidae, standard deviation; Uniporus sp.; Uniporus sp., standard deviation
Type:
Dataset
Format:
text/tab-separated-values, 1035 data points
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