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  • 1
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The deep ocean is home to a group of broad-collared hemichordates—the so-called ‘lophenteropneusts’—that have been photographed gliding on the sea floor but have not previously been collected. It has been claimed that these worms have collar tentacles and blend ...
    Type of Medium: Electronic Resource
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  • 2
    Publication Date: 2020-02-06
    Description: Highlights • Deep-sea mineral exploration and exploitation licenses have been issued recently. • Mining will modify the abiotic and biotic environment. • At directly mined sites, species are removed and cannot resist disturbance. • Recovery is highly variable in distinct ecosystems and among benthic taxa. • Community changes may persist over geological time-scales at directly mined sites. Abstract With increasing demand for mineral resources, extraction of polymetallic sulphides at hydrothermal vents, cobalt-rich ferromanganese crusts at seamounts, and polymetallic nodules on abyssal plains may be imminent. Here, we shortly introduce ecosystem characteristics of mining areas, report on recent mining developments, and identify potential stress and disturbances created by mining. We analyze species’ potential resistance to future mining and perform meta-analyses on population density and diversity recovery after disturbances most similar to mining: volcanic eruptions at vents, fisheries on seamounts, and experiments that mimic nodule mining on abyssal plains. We report wide variation in recovery rates among taxa, size, and mobility of fauna. While densities and diversities of some taxa can recover to or even exceed pre-disturbance levels, community composition remains affected after decades. The loss of hard substrata or alteration of substrata composition may cause substantial community shifts that persist over geological timescales at mined sites.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
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  • 3
    Publication Date: 2021-09-07
    Description: The deep ocean is home to a group of broad-collared hemichordates—the so-called ‘lophenteropneusts’—that have been photographed gliding on the sea floor1,2,3,4,5,6,7,8 but have not previously been collected. It has been claimed that these worms have collar tentacles and blend morphological features of the two main hemichordate body plans, namely the tentacle-less enteropneusts and the tentacle-bearing pterobranchs. Consequently, lophenteropneusts have been invoked as missing links to suggest that the former evolved into the latter5. The most significant aspect of the lophenteropneust hypothesis is its prediction that the fundamental body plan within a basal phylum of deuterostomes was enteropneust-like. The assumption of such an ancestral state influences ideas about the evolution of the vertebrates from the invertebrates9,10,11,12,13,14. Here we report on the first collected specimen of a broad-collared, deep-sea enteropneust and describe it as a new family, genus and species. The collar, although disproportionately broad, lacks tentacles. In addition, we find no evidence of tentacles in the available deep-sea photographs (published and unpublished) of broad-collared enteropneusts, including those formerly designated as lophenteropneusts. Thus, the lophenteropneust hypothesis was based on misinterpretation of deep-sea photographs of low quality and should no longer be used to support the idea that the enteropneust body plan is basal within the phylum Hemichordata.
    Type: Article , PeerReviewed
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  • 4
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    PANGAEA
    In:  Supplement to: Vedenin, Andrey; Gusky, Manuela; Gebruk, Andrey V; Kremenetskaia, Antonina; Rybakova, Elena; Boetius, Antje (2018): Spatial distribution of benthic macrofauna in the Central Arctic Ocean. PLoS ONE, 13(10), e0200121, https://doi.org/10.1371/journal.pone.0200121
    Publication Date: 2023-01-13
    Description: Permanent sea-ice cover and low primary productivity in the mostly ice-covered Central Arctic ocean basins result in significantly lower biomass and density of macrobenthos in the abyssal plains compared to the continental slopes. However, little is known on bathymetric and regional effects on the macrobenthos diversity. This study synthesizes new and available macrobenthos data to provide a baseline for future studies of the effects of Arctic change on macrofauna community composition in the Arctic basins. Samples collected during three expeditions (in 1993, 2012 and 2015) at 37 stations on the slope of the Barents and Laptev Seas and in the abyssal of the Nansen and Amundsen Basins in the depth range from 38 m to 4381 m were used for a quantitative analysis of species composition, abundance and biomass. Benthic communities clustered in five depth ranges across the slope and basin. A parabolic pattern of species diversity change with depth was found, with the diversity maximum for macrofauna at the shelf edge at depths of 100–300 m. This deviates from the typical species richness peak at mid-slope depths of 1500–3000 m in temperate oceans. Due to the limited availability of standardized benthos data, it remains difficult to assess if and how the significant sea-ice loss observed in the past decade has affected benthic community composition. The polychaete Ymerana pteropoda and the bryozoan Nolella sp. were found for the first time in the deep Nansen and Amundsen Basins.
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 5
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    PANGAEA
    In:  Supplement to: Rybakova, Elena; Kremenetskaia, Antonina; Vedenin, Andrey; Boetius, Antje; Gebruk, Andrey V (2019): Deep-sea megabenthos communities of the Eurasian Central Arctic are influenced by ice-cover and sea-ice algal falls. PLoS ONE, 14(7), e0211009, https://doi.org/10.1371/journal.pone.0211009
    Publication Date: 2023-01-13
    Description: Quantitative camera surveys of benthic megafauna were carried out during the expedition ARK-XXVII/3 to the Eastern Central Arctic basins with the research icebreaker Polarstern in summer 2012 (2 August-29 September). Nine transects were performed for the first time in deep-sea areas previously fully covered by ice, four of them in the Nansen Basin (3571-4066m) and five in the Amundsen Basin (4041-4384m). At seven of these stations benthic Agassiz trawls were taken near the camera tracks for species identification.
    Type: Dataset
    Format: application/zip, 5 datasets
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  • 6
    Publication Date: 2023-01-13
    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 (BIIGLE.de). Visible megafauna was identified to the lowest possible taxonomic level. Taxonomic identifications were made with the assistance of zoological 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. Frequency of occurrence at transects of different taxa was evaluated. Agassiz trawls were taken next to the photographic transects to obtain specimens for verification of taxonomic identifications based on images. In areas of stations 8 and 9 the thick ice prevented trawling operations.
    Keywords: Class; Family; Occurrence; Phylum; Taxon/taxa; Uniform resource locator/link to image
    Type: Dataset
    Format: text/tab-separated-values, 1214 data points
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  • 7
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    PANGAEA
    In:  Supplement to: Volvenko, Igor V; Orlov, Alexei M; Gebruk, Andrey V; Katugin, Oleg N; Ogorodnikova, Alla A; Vinogradov, Georgy M; Maznikova, Olga A (in prep.): Trawl macrofauna of the Far-Eastern Seas and North Pacific: proportion of commercial species, potential product yield, and price rang. Earth System Science Data, https://doi.org/10.5194/essd-2019-92
    Publication Date: 2023-01-30
    Description: A checklist of 1541 animal species from the Chukchi, Bering, Okhotsk, and Japan seas and the North Pacific Ocean was generated from 459 research vessel surveys (68903 trawl tows) from 1977-2014 at depths from 5 to 2200 m. The study area spanned over 25 million km2. For each species, the scientific name is given, as well as English and Russian common names along with the following details: areas where species were collected, trawl type (benthic/midwater), real or potential commercial importance, possible product yield and minimum wholesale prices. The checklist can be used for development of bioresource management, aquaculture and conservation, assessment of environmental damage caused by anthropogenic impact (hydro-technical constructions, oil/gas extractions, nuclear reactor accidents, etc.).
    Keywords: Commercial importance; comparison of marine basins; North Pacific and East Arctic; product yield and prices; species checklist; trawl catches
    Type: Dataset
    Format: application/zip, 263.3 kBytes
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  • 8
    Publication Date: 2023-07-09
    Keywords: Abyssidrilus altus, biomass, wet mass; Abyssoninoe cf. scopa, biomass, wet mass; Acanthotrochus mirabilis, biomass, wet mass; Aceroides latipes, biomass, wet mass; Aglaophamus malmgreni, biomass, wet mass; Akademik Mstislav Keldysh; Akanthophoreus cf. inermis, biomass, wet mass; Akanthophoreus gracilis, biomass, wet mass; Alcyonidium disciforme, biomass, wet mass; Alcyonidium gelatinosum, biomass, wet mass; Alcyonidium radicellatum, biomass, wet mass; Alvania verrilli, biomass, wet mass; Amage auricula, biomass, wet mass; AMK63; AMK63-5225; AMK63-5227; Ampharete acutifrons, biomass, wet mass; Ampharete borealis, biomass, wet mass; Ampharete finmarchica, biomass, wet mass; Ampharete lindstroemi, biomass, wet mass; Amphilochopsis hamatus, biomass, wet mass; Anguillosyllis pupa, biomass, wet mass; Anobothrus gracilis, biomass, wet mass; Anobothrus laubieri, biomass, wet mass; Anonyx lilljeborgi, biomass, wet mass; Arctic Ocean; Arctolembos arcticus, biomass, wet mass; Aricidea abranchiata, biomass, wet mass; Aricidea hartmanae, biomass, wet mass; Aricidea quadrilobata, biomass, wet mass; Aricidea suecica, biomass, wet mass; ARK-IX/4; ARK-XXVII/3; Arrhis phyllonyx, biomass, wet mass; Artacama proboscidea, biomass, wet mass; Asbestopluma pennatula, biomass, wet mass; Astarte crenata, biomass, wet mass; Athenaria, biomass, wet mass; Austrosyrrhoe septentrionalis, biomass, wet mass; Bathyarca frielei, biomass, wet mass; Bathycrinus carpenterii, biomass, wet mass; Bathymedon nanseni, biomass, wet mass; Bathyphellia margaritacea, biomass, wet mass; Berenicea arctica, biomass, wet mass; Bolocera tuediae, biomass, wet mass; Boreohydra simplex, biomass, wet mass; Brada villosa, biomass, wet mass; Branchiomma arcticum, biomass, wet mass; Bushiella kofiadii, biomass, wet mass; Bushiella similis, biomass, wet mass; Byblis erythrops, biomass, wet mass; Byblis gaimardii, biomass, wet mass; Byblis minuticornis, biomass, wet mass; Bylgides groenlandicus, biomass, wet mass; Caecognathia bicolor, biomass, wet mass; Caecognathia elongata, biomass, wet mass; Caecognathia stygia, biomass, wet mass; Calathura brachiata, biomass, wet mass; Callopora craticula, biomass, wet mass; Capitella capitata, biomass, wet mass; Caulophacus arcticus, biomass, wet mass; Celleporaria nodulosa, biomass, wet mass; Centromedon calcaratus, biomass, wet mass; Centromedon cf. typhlops, biomass, wet mass; Cerianthus vogti, biomass, wet mass; cf. Chauliopleona sp., biomass, wet mass; cf. Jacobia sp., biomass, wet mass; cf. Neopolynoe paradoxa, biomass, wet mass; Chaetosyllis oerstedi, biomass, wet mass; Chaetozone jubata, biomass, wet mass; Chaetozone setosa, biomass, wet mass; Chauliopleona hastata, biomass, wet mass; Chone duneri, biomass, wet mass; Cistenides hyperborea, biomass, wet mass; Cladorhiza gelida, biomass, wet mass; Clathrina sp., biomass, wet mass; Clavularia arctica, biomass, wet mass; Clymenura polaris, biomass, wet mass; Collettea cylindrata, biomass, wet mass; Copidognathus oculatus, biomass, wet mass; Corymorpha groenlandica, biomass, wet mass; Cossura longocirrata, biomass, wet mass; Craniella cranium, biomass, wet mass; Crella pertusa, biomass, wet mass; Cribrilina watersi, biomass, wet mass; Crisia sp., biomass, wet mass; Cryptonatica affinis, biomass, wet mass; Ctenodiscus crispatus, biomass, wet mass; Cuspidaria arctica, biomass, wet mass; Cuspidaria cf. centobi, biomass, wet mass; Cyclopecten hoskynsi, biomass, wet mass; Cyclostomatida, biomass, wet mass; Cylichna alba, biomass, wet mass; Cylichna lemchei, biomass, wet mass; Cylichna occulta, biomass, wet mass; Dacrydium vitreum, biomass, wet mass; Date/Time of event; DEPTH, water; Desmosoma lineare, biomass, wet mass; Desmosomatidae, biomass, wet mass; Diaphana hiemalis, biomass, wet mass; Diastylis oxyrhyncha, biomass, wet mass; Diastylis polaris, biomass, wet mass; Diastylis spinulosa, biomass, wet mass; Didemnum albidum, biomass, wet mass; Diplocirrus hirsutus, biomass, wet mass; Diplosolen intricarium, biomass, wet mass; Dipolydora coeca, biomass, wet mass; Dipolydora quadrilobata, biomass, wet mass; Dulichiopsis macera, biomass, wet mass; Dysponetus pygmaeus, biomass, wet mass; Echinozone arctica, biomass, wet mass; Echinozone coronata, biomass, wet mass; Echiurus echiurus, biomass, wet mass; Edwardsiella carnea, biomass, wet mass; Edwardsiidae, biomass, wet mass; Eggs; Ektonodiastylis nimia, biomass, wet mass; Elevation of event; Elpidia heckeri, biomass, wet mass; Ennucula tenuis, biomass, wet mass; Enopla, biomass, wet mass; Ephesiella abyssorum, biomass, wet mass; Epizoanthus erdmanni, biomass, wet mass; Ericthonius difformis, biomass, wet mass; Erinaceusyllis erinaceus, biomass, wet mass; Erythrops abyssorum, biomass, wet mass; Erythrops erythrophthalmus, biomass, wet mass; Escharella sp., biomass, wet mass; Escharoides bidenkapi, biomass, wet mass; Eteone flava, biomass, wet mass; Euchone analis, biomass, wet mass; Eucranta villosa, biomass, wet mass; Eucratea loricata, biomass, wet mass; Eudorella cf. hispida, biomass, wet mass; Eudorella cf. intermedia, biomass, wet mass; Eudorella emarginata, biomass, wet mass; Eudorellopsis integra, biomass, wet mass; Eugerda arctica, biomass, wet mass; Eugerda reticulata, biomass, wet mass; Eugerda sp., biomass, wet mass; Eugerda tenuimana, biomass, wet mass; Eugerdella armata, biomass, wet mass; Eugerdella hessleri, biomass, wet mass; Eugyra pedunculata, biomass, wet mass; Eunoe sp., biomass, wet mass; Euphysa aurata, biomass, wet mass; Eurycope cornuta, biomass, wet mass; Eurycope hanseni, biomass, wet mass; Eurycope inermis, biomass, wet mass; Eusyllinae, biomass, wet mass; Event label; Exiliniscus hanseni, biomass, wet mass; Exogone cf. gemmifera, biomass, wet mass; Filicrisia smitti, biomass, wet mass; Flabelligella sp., biomass, wet mass; Flabelligena cirrata, biomass, wet mass; Forcepia fabricans, biomass, wet mass; Galathowenia fragilis, biomass, wet mass; Galathowenia oculata, biomass, wet mass; Geodia barretti, biomass, wet mass; Gersemia fruticosa, biomass, wet mass; Gersemia rubiformis, biomass, wet mass; Glycera capitata, biomass, wet mass; Glyphanostomum pallescens, biomass, wet mass; Golfingia margaritacea, biomass, wet mass; Grab; GRAB; Gracilimesus cf. angustus, biomass, wet mass; Gracilimesus gorbunovi, biomass, wet mass; Gracilimesus modestus, biomass, wet mass; Gracilimesus tenuispinis, biomass, wet mass; Grammaria borealis, biomass, wet mass; Grubianella klugei, biomass, wet mass; Halacaridae, biomass, wet mass; Halice abyssi, biomass, wet mass; Halice malygini, biomass, wet mass; Haliclona sp., biomass, wet mass; Haliragoides inermis, biomass, wet mass; Hamingia arctica, biomass, wet mass; Haplomesus quadrispinosus, biomass, wet mass; Haploniscus bicuspis, biomass, wet mass; Haploops setosa, biomass, wet mass; Harpinia mucronata, biomass, wet mass; Harpinia propinqua, biomass, wet mass; Harpiniopsis amundseni, biomass, wet mass; Harpiniopsis similis, biomass, wet mass; Harrimaniidae, biomass, wet mass; Heptacyclus sp., biomass, wet mass; Hesionidae, biomass, wet mass; Heteromastus filiformis, biomass, wet mass; Hippomedon frigidus, biomass, wet mass; Hippomedon holbolli, biomass, wet mass; Hormathiidae, biomass, wet mass; Hyalopecten frigidus, biomass, wet mass; Hyalopomatus claparedii, biomass, wet mass; Hydrozoa, biomass, wet mass; Hymedesmia sp., biomass, wet mass; Hymenodora glacialis, biomass, wet mass; Idmidronea atlantica, biomass, wet mass; Idunella aequicornis, biomass, wet mass; Ilyarachna cf. longicornis, biomass, wet mass; Ilyarachna dubia, biomass, wet mass; Ilyarachna hirticeps, biomass, wet mass; Ischnomesus cf. profundus, biomass, wet mass; Ischnomesus norvegicus, biomass, wet mass; Ischyrocerus cf. brusilovi, biomass, wet mass; Ischyrocerus tenuicornis, biomass, wet mass; Isocirrus planiceps, biomass, wet mass; Isozoanthus bulbosus, biomass, wet mass; Jasmineira schaudinni, biomass, wet mass; Katadesmia kolthoffi, biomass, wet
    Type: Dataset
    Format: text/tab-separated-values, 1579 data points
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  • 9
    Publication Date: 2023-07-09
    Keywords: Abyssidrilus altus; Abyssoninoe cf. scopa; Acanthotrochus mirabilis; Aceroides latipes; Aglaophamus malmgreni; Akademik Mstislav Keldysh; Akanthophoreus cf. inermis; Akanthophoreus gracilis; Alcyonidium disciforme; Alcyonidium gelatinosum; Alcyonidium radicellatum; Alvania verrilli; Amage auricula; AMK63; AMK63-5225; AMK63-5227; Ampharete acutifrons; Ampharete borealis; Ampharete finmarchica; Ampharete lindstroemi; Amphianthus margaritaceus; Amphilochopsis hamatus; Anguillosyllis pupa; Anobothrus gracilis; Anobothrus laubieri; Anonyx lilljeborgi; Aquiloniella scabra; Arctic Ocean; Arctolembos arcticus; Aricidea abranchiata; Aricidea hartmanae; Aricidea quadrilobata; Aricidea suecica; ARK-IX/4; ARK-XXVII/3; Arrhis phyllonyx; Artacama proboscidea; Asbestopluma pennatula; Astarte crenata; Athenaria; Austrosyrrhoe septentrionalis; Bathyarca frielei; Bathycrinus carpenterii; Bathymedon nanseni; Bathyphellia margaritacea; Berenicea arctica; Bolocera tuediae; Boreohydra simplex; Brada villosa; Branchiomma arcticum; Bushiella kofiadii; Bushiella similis; Byblis erythrops; Byblis gaimardii; Byblis minuticornis; Bylgides groenlandicus; Caecognathia bicolor; Caecognathia elongata; Caecognathia stygia; Calathura brachiata; Callopora craticula; Capitella capitata; Caulophacus arcticus; Celleporaria nodulosa; Centromedon calcaratus; Centromedon cf. typhlops; Centromedon sp.; Cerianthus vogti; cf. Chauliopleona sp.; cf. Jacobia sp.; cf. Neopolynoe paradoxa; Chaetosyllis oerstedi; Chaetozone jubata; Chaetozone setosa; Chauliopleona hastata; Chone duneri; Cistenides hyperborea; Cladorhiza gelida; Clathrina sp.; Clavularia arctica; Clymenura polaris; Collettea cylindrata; Copidognathus oculatus; Corymorpha groenlandica; Cossura longocirrata; Counting; Craniella cranium; Crella pertusa; Cribrilina watersi; Crisia sp.; Cryptonatica affinis; Ctenodiscus crispatus; Cuspidaria arctica; Cuspidaria cf. centobi; Cyclopecten hoskynsi; Cyclostomatida; Cylichna alba; Cylichna lemchei; Cylichna occulta; Dacrydium vitreum; Date/Time of event; DEPTH, water; Desmosoma lineare; Desmosomatidae; Diaphana hiemalis; Diastylis oxyrhyncha; Diastylis polaris; Diastylis spinulosa; Didemnum albidum; Diplocirrus hirsutus; Diplosolen intricarium; Dipolydora coeca; Dipolydora quadrilobata; Dulichiopsis macera; Dysponetus pygmaeus; Echinozone arctica; Echinozone coronata; Echiurus echiurus; Edwardsiella carnea; Edwardsiidae; Eggs; Ektonodiastylis nimia; Elpidia heckeri; Ennucula tenuis; Enopla; Ephesiella abyssorum; Epizoanthus erdmanni; Ericthonius difformis; Erinaceusyllis erinaceus; Erythrops abyssorum; Erythrops erythrophthalmus; Escharella sp.; Escharoides bidenkapi; Escharoides jacksonii; Eteone flava; Euchone analis; Eucranta villosa; Eucratea loricata; Eudorella cf. hispida; Eudorella cf. intermedia; Eudorella emarginata; Eudorellopsis integra; Eugerda arctica; Eugerda reticulata; Eugerda sp.; Eugerda tenuimana; Eugerdella armata; Eugerdella cf. natator; Eugerdella hessleri; Eugyra pedunculata; Eunoe sp.; Euphysa aurata; Eurycope cornuta; Eurycope hanseni; Eurycope inermis; Eusyllinae; Event label; Exiliniscus hanseni; Exogone cf. gemmifera; Filicrisia smitti; Flabelligella sp.; Flabelligena cirrata; Forcepia fabricans; Galathowenia fragilis; Galathowenia oculata; Geodia barretti; Gersemia fruticosa; Gersemia rubiformis; Glycera capitata; Glyphanostomum pallescens; Golfingia margaritacea; Grab; GRAB; Gracilimesus cf. angustus; Gracilimesus gorbunovi; Gracilimesus modestus; Gracilimesus tenuispinis; Grammaria borealis; Grubianella klugei; Halacaridae; Halice abyssi; Halice malygini; Haliclona sp.; Haliragoides inermis; Halitholus yoldiaearcticae; Hamingia arctica; Haplomesus quadrispinosus; Haploniscus bicuspis; Haploops setosa; Harpinia mucronata; Harpinia propinqua; Harpiniopsis amundseni; Harpiniopsis similis; Harrimaniidae; Heptacyclus sp.; Hesionidae; Heteromastus filiformis; Hippomedon frigidus; Hippomedon holbolli; Hormathiidae; Hyalopecten frigidus; Hyalopomatus claparedii; Hydrozoa; Hymedesmia sp.; Hymenodora glacialis; Idmidronea atlantica; Idunella aequicornis; Ilyarachna cf. longicornis; Ilyarachna dubia; Ilyarachna hirticeps; Ischnomesus cf. profundus; Ischnomesus norvegicus; Ischyrocerus cf. brusilovi; Ischyrocerus tenuicornis; Isocirrus planiceps; Isozoanthus bulbosus; Jasmineira schaudinni; Katadesmia kolthoffi; Katianira bilobata; Kinetoskias smitti; Kolga hyalina; Lafoea dumosa; Laona finmarchica; Laonice cf. blakei; Laonice cirrata; Laphania boecki; Laptev Sea; Latitude of event; Leptognathiidae; Leptostylis longimana; Leptostylis macrura; Leucon nasica; Leucon spinulosus; Levinsenia gracilis; Lichenopora sp.; Limatula hyperborea; Lineidae; Lissodendoryx complicata; Longitude of event; Lumbrineris latreilli; Lumbrineris tetraura; Lyonsiella abyssicola; Lyonsiella sp.; Lysianassidae; Lysilla loveni; Macoma calcarea; Macrofauna, abundance; Macrostylis polaris; Maldane arctica; Maldane sarsi; Margarites groenlandicus; Margarites helicinus; Melinna elisabethae; Melinnopsis arctica; Melita cf. quadrispinosa; Mendicula ferruginosa; Mendicula ockelmanni; Meromonakantha irregularis; Metavermilia arctica; MG; Micronephthys minuta; Mirabilicoxa gracilipes; Mirabilicoxa sp.; Mohnia mohni; Molgula cf. siphonalis; Monoculodes cf. latissimanus; Monoculodes norvegicus; MULT; Multiboxcorer; Multiple investigations; Munna acanthifera; Munna hanseni; Munna sp.; Myriochele heeri; Myriotrochus eurycyclus; Myriotrochus rinkii; Mystides cf. caeca; Myxilla pedunculata; Nannoniscidae; Nannoniscoides angulatus; Nannoniscoides cf. latediffusus; Nannoniscus aequiremus; Nannoniscus arcticus; Nannoniscus profundus; Nannoniscus reticulatus; Neohela monstrosa; Nephasoma abyssorum; Nephasoma diaphanes; Nephasoma eremita; Nephtys ciliata; Nereilinum squamosum; Nereis gracilis; Nicomache lumbricalis; Nicomache quadrispinata; Nolella sp.; Nothria hyperborea; Notomastus sp.; Notoplites normani; Notoplites smittii; Notoproctus oculatus; Nuculana pernula; Nymphon macronyx; Obtusella tumidula; Oecidiobranchus glacialis; Oecidiobranchus plebejum; Oedicerotidae; Oenopota cf. ovalis; Oligobrachia haakonmosbiensis; Onisimus caricus; Onisimus leucopis; Onisimus sextonae; Ophelina abranchiata; Ophelina acuminata; Ophelina cylindricaudata; Ophelina opisthobranchiata; Ophelina sp.; Ophiacantha bidentata; Ophiocten sericeum; Ophiopleura borealis; Ophioscolex glacialis; Ophiura robusta; Opisthobranchia; Oscarella sp.; Owenia polaris; Palmicellaria skenei; Paradoneis lyra; Paradulichia typica; Paramphitrite birulai; Paranaitis sp.; Paranaitis wahlbergi; Paroediceros macrocheir; Paroediceros propinquus; Peloscolex cf. aculeatus; Petalosarsia declivis; Phascolion strombus; Philine lima; Pholoe longa; Photis reinhardi; Phyllochaetopterus bhaudi; Phyllodoce groenlandica; Pionosyllis sp.; Pista maculata; Platybdella sp.; Plehniidae; Pleurogonium inerme; Pleurogonium rubicundum; Pleusymtes pulchella; Polarstern; Polarsternium rugellosum; Poliometra prolixa; Polychaeta Incertae sedis; Polycirrinae; Polycirrus medusa; Polymastia sp.; Polyphysia baffinensis; Pontaster tenuispinus; Porella sp.; Portlandia arctica; Potamethus malmgreni; Pourtalesia jeffreysi; Praxillella gracilis; Praxillella praetermissa; Praxillura longissima; Prionospio cirrifera; Prionospio sp.; Proclea graffii; Propebela sp.; Protis arctica; Protomedeia fasciata; Prototrochus theeli; Prototrochus zenkevitchi; Protula globifera; Pruvotinidae; PS2442; PS2444; PS2445; PS2446; PS2447; PS2448; PS2449; PS2453; PS2454; PS2457; PS2458; PS2459; PS2460; PS2461; PS2462; PS2463; PS2465; PS2466; PS2467; PS2468; PS2470; PS2471; PS2477; PS2481; PS2482; PS2483; PS2484; PS27; PS27/014; PS27/017; PS27/019; PS27/020; PS27/024; PS27/025; PS27/027; PS27/031; PS27/032; PS27/035; PS27/038; PS27/039; PS27/040; PS27/041; PS27/043; PS27/044; PS27/047; PS27/048; PS27/049; PS27/050; PS27/053; PS27/054; PS27/064; PS27/068; PS27/069; PS27/070; PS27/071; PS80/229-2; PS80/241-1; PS80/262-
    Type: Dataset
    Format: text/tab-separated-values, 16317 data points
    Location Call Number Limitation Availability
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  • 10
    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
    Location Call Number Limitation Availability
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