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  • 2020-2024  (9)
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  • 1
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    Unknown
    Sea-ice meiofauna (〉10 µm) abundance in Arctic pack ice north of Svalbard during the Polarstern expedition PS92 in 2015 (2020)
    PANGAEA
    Details
    Publication Date: 2023-04-13
    Description: We investigated the taxonomic composition and abundance of sea-ice meiofauna (here heterotrophs 〉10 µm) at eight ice stations on Arctic pack ice north of Svalbard. Sampling was conducted during spring in 2015 by sea-ice coring. The bottom 10 cm of each ice core was investigated for sea-ice meiofauna and abundances of individuals/m² were calculated from counting numbers.
    Keywords: Abundance; Amoebozoa; Arctic; Arctic Ocean; ARK-XXIX/1, TRANSSIZ; Campaign; Ciliophora; DATE/TIME; Event label; Gyrodinium; Harpacticoida; ICE; Ice station; LATITUDE; Location; LONGITUDE; Nauplii; pack ice; Podolampas; Polarstern; Polykrikos; Principal investigator; Protoperidinium; PS92; PS92/019-6; PS92/027-2; PS92/031-2; PS92/032-4; PS92/039-6; PS92/043-4; PS92/046-1; PS92/047-3; Rotifera; sea-ice meiofauna; Station label; Svalbard; sympagic fauna; Tintinnina; Type
    Type: Dataset
    Format: text/tab-separated-values, 120 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Under-ice fauna abundance of Arctic pack ice north of Svalbard during the Polarstern expedition PS92 in 2015 (2020)
    PANGAEA
    Details
    Publication Date: 2023-07-10
    Description: We investigated the taxonomic composition and abundance of under-ice fauna (metazoans 〉300 µm) at fourteen stations in the Arctic Ocean, north of Svalbard. Sampling was conducted during spring in 2015 with the Surface and Under Ice Trawl (SUIT) and the catch of the plankton net (300 µm mesh size) was investigated for under-ice fauna. Abundances of individuals/m² were calculated from counting numbers.
    Keywords: Abundance; Apherusa glacialis; Appendicularia; Arctic; Arctic Ocean; ARK-XXIX/1, TRANSSIZ; Calanus finmarchicus; Calanus glacialis; Calanus hyperboreus; Campaign; Cast number; Chaetognatha; Cirripedia, larvae; Clausocalanidae; Clione limacina; DATE/TIME; Eukrohnia hamata; Eusirus spp.; Event label; Gear; Harpacticoida; Hydrozoa; Isopoda; LATITUDE; Limacina helicina; Location; LONGITUDE; Metridia longa; Nauplii; Oikopleura spp.; Oithona sp.; Onisimus glacialis; Osteichthyes, larvae; pack ice; Paraeuchaeta spp.; Parasagitta elegans; Polarstern; Polychaeta; Principal investigator; PS92; PS92/019-1; PS92/027-1; PS92/028-4; PS92/031-1; PS92/032-12; PS92/038-1; PS92/039-17; PS92/043-23; PS92/044-1; PS92/045-1; PS92/047-1; PS92/048-1; PS92/049-1; PS92/056-2; Station label; SUIT; Surface and under ice trawl; Svalbard; sympagic fauna; Themisto abyssorum; Themisto libellula; Themisto spp.; Thysanoessa longicaudata; Tisbe spp.; Trawling distance; Trochophora, larvae; under-ice fauna; Volume; Xenacoelomorpha; Zoaea, larvae
    Type: Dataset
    Format: text/tab-separated-values, 560 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Video footage of Arnoux's beaked whales (Berardius arnuxii) observed in the Weddell Sea during POLARSTERN expedition PS129 (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Arnoux's beaked whales (Berardius arnuxii) were observed in the western Weddell Sea during a dedicated top predator helicopter survey from Polarstern. The group of eight whales were observed in the pack-ice on the 21 April 2022 at 14:37h, at -63.7172˚S, -51.2116˚W. This was the third group of Arnoux's beaked whales observed during expedition PS129.
    Keywords: HAFOS; HELI; Helicopter; Marine Mammal Tracking; MMT; Polarstern; PS129; PS129_HELI_20220421
    Type: Dataset
    Format: application/mp4, 133 MBytes
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Energy content measurements on Arctic zooplankton collected during MOSAiC (PS122): sample details (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset contains energy content measurements performed on zooplankton collected in the Arctic Ocean during the MOSAiC expedition (PS122) from November 2019 untill September 2020. Energy content measurements were done on Apherusa glacialis, Themisto abyssorum, Chaetognatha, Thysanoessa longicaudata and Calanus hyperboreus. These species are all known prey of polar cod (Boreogadus saida), and their energy content was measured to be included in a bioenergetic model of the growth rate of this predator and to gain insight in the differences between prey species. The meaurements were performed on freeze-dried specimens using a 6725 semi-micro oxygen calorimeter (Parr, USA) connected to a 6772 calorimetric thermometer (Parr, USA).
    Keywords: Arctic; Arctic Ocean; BEAST; bomb-calorimetry; DATE/TIME; DEPTH, water; Dry mass; energy density; Event label; LATITUDE; Length; LONGITUDE; Measurement identification; MOSAiC; MOSAiC_ECO; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Nansen closing net; NN; Number; Polarstern; PS122/1; PS122/1_7-48; PS122/1_7-81; PS122/2; PS122/2_17-40; PS122/2_17-77; PS122/2_18-33; PS122/2_19-16; PS122/2_19-31; PS122/2_20-11; PS122/2_20-16; PS122/2_20-24; PS122/2_21-42; PS122/2_22-24; PS122/3; PS122/3_30-69; PS122/3_31-62; PS122/3_36-112; PS122/3_37-108; PS122/3_39-38; PS122/3_39-55; PS122/4; PS122/4_44-75; PS122/4_45-32; PS122/4_45-55; PS122/4_46-41; PS122/4_47-135; PS122/4_48-213; PS122/4_49-21; PS122/5; PS122/5_61-196; PS122/5_62-90; Remotely operated sensor platform BEAST; Ring net; RN; Sample ID; Sample type; Sampling; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Water content, wet mass; Wet mass; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 1291 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Energy content measurements on Arctic zooplankton collected during MOSAiC (PS122): bomb-calorific measurements (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset contains energy content measurements performed on zooplankton collected in the Arctic Ocean during the MOSAiC expedition (PS122) from November 2019 untill September 2020. Energy content measurements were done on Apherusa glacialis, Themisto abyssorum, Chaetognatha, Thysanoessa longicaudata and Calanus hyperboreus. These species are all known prey of polar cod (Boreogadus saida), and their energy content was measured to be included in a bioenergetic model of the growth rate of this predator and to gain insight in the differences between prey species. The meaurements were performed on freeze-dried specimens using a 6725 semi-micro oxygen calorimeter (Parr, USA) connected to a 6772 calorimetric thermometer (Parr, USA).
    Keywords: Arctic; Arctic Ocean; BEAST; bomb-calorimetry; energy density; Event label; Measurement identification; MOSAiC; MOSAiC_ECO; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Nansen closing net; NN; Other event; Polarstern; PS122/1; PS122/1_7-48; PS122/1_7-81; PS122/2; PS122/2_17-77; PS122/2_18-33; PS122/2_19-16; PS122/2_19-31; PS122/2_20-11; PS122/2_20-16; PS122/2_20-24; PS122/2_21-42; PS122/2_22-24; PS122/3; PS122/3_30-69; PS122/3_31-62; PS122/3_36-112; PS122/3_37-108; PS122/3_39-38; PS122/3_39-55; PS122/4; PS122/4_44-75; PS122/4_45-32; PS122/4_45-55; PS122/4_46-41; PS122/4_47-135; PS122/4_48-213; PS122/4_49-21; PS122/5; PS122/5_61-196; PS122/5_62-90; Remotely operated sensor platform BEAST; Ring net; RN; Sample comment; Semi-micro oxygen calorimeter, Parr, 6725; connected to calorimetric thermometer, Parr, 6772; Species, unique identification; Species, unique identification (Semantic URI); Species, unique identification (URI); Zooplankton; Zooplankton, biomass, dry mass, as energy
    Type: Dataset
    Format: text/tab-separated-values, 276 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    ICEFLUX allometric measurements of polar zooplankton and fish (2021)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset summarizes allometric measurements on zooplankton and nekton species performed in the framework of the Dutch and German ICEFLUX projects. Measurements were performed on 639 individuals of 15 species from the Southern Ocean and 2374 individuals of 14 species from the Arctic Ocean, including euphausiids, fish, pelagic and ice-associated amphipods, cnidarians, salps, siphonophores, chaetognaths and a copepod. Animals were collected during three expeditions in the Southern Ocean (winter and summer) and three expeditions in the Arctic Ocean (spring and summer). In addition to measurements on length and mass, the sizes of body parts were measured, such as carapaces, eyes, heads, telsons, tails and otoliths.
    Keywords: Allometric relationships; ANT-XXIX/7; ANT-XXIX/9; ANT-XXX/2; Arctic Ocean; ARK-XXIX/1, TRANSSIZ; ARK-XXVII/3; ARK-XXXI/1.2; Barents Sea; Bottom trawl; BT; CAATEX; Carapace, length; CATS; CATS - The Changing Arctic Transpolar System; Coordinated Arctic Acoustic Thermoetry Experiment; Date/Time of event; Date of determination; Digital scale; Event label; Eye, length, horizontal; Eye, length, vertical; Eye distance; Field observation; fish; HAVOC; Head, length; Head, width; Ice Camp 1; Ice Camp 2; Identification; Individual dry mass; Latitude of event; Lazarev Sea; Length; Length, standard; Length, total; Life stage; Longitude of event; Mass; MSN; Multiple opening/closing net; Otolith, length; Otolith, width; Polarstern; Preservation; Prosome, length; PS106_50-5; PS106_52-1; PS106_63-1; PS106_65-3; PS106_65-4; PS106_66-4; PS106_67-1; PS106_67-5; PS106_68-5; PS106_69-2; PS106_70-1; PS106_70-4; PS106_71-4; PS106_71-5; PS106_72-1; PS106_72-5; PS106_73-7; PS106_73-8; PS106_74-4; PS106_74-5; PS106_75-5; PS106_75-6; PS106_76-3; PS106_76-4; PS106_77-2; PS106_77-3; PS106_78-4; PS106_78-5; PS106_79-1; PS106_80-3; PS106_80-4; PS106_80-5; PS106_83-6; PS106_83-7; PS106_89-1; PS106_90-1; PS106_91-1; PS106_93-1; PS106/2; PS80/204-1; PS80/216-1; PS80/223-1; PS80/233-1; PS80/248-1; PS80/258-1; PS80/276-1; PS80/285-1; PS80/321-1; PS80/331-1; PS80/333-1; PS80/345-1; PS80/358-1; PS80/376-1; PS80/397-1; PS80 IceArc; PS81; PS81/551-1; PS81/555-44; PS81/555-47; PS81/557-2; PS81/560-2; PS81/562-5; PS81/565-5; PS81/566-18; PS81/566-2; PS81/566-21; PS81/566-4; PS81/567-2; PS81/570-5; PS81/571-1; PS81/571-2; PS81/577-2; PS81/579-2; PS82; PS82/042-1; PS82/051-1; PS82/065-1; PS82/083-1; PS82/090-1; PS82/100-1; PS82/107-1; PS82/124-1; PS82/133-1; PS82/135-1; PS82/147-1; PS82/155-1; PS82/177-1; PS82/199-1; PS82/227-1; PS82/234-1; PS82/247-1; PS82/250-1; PS82/304-1; PS82/317-1; PS89; PS89/018-1; PS89/024-2; PS89/025-1; PS89/027-5; PS89/027-6; PS89/029-1; PS89/029-3; PS89/030-2; PS89/030-4; PS89/053-3; PS89/059-1; PS89/062-1; PS89/066-5; PS89/070-1; PS89/070-2; PS89/071-1; PS89/079-1; PS89/080-3; PS92; PS92/019-1; PS92/019-2; PS92/027-1; PS92/027-17; PS92/028-4; PS92/028-5; PS92/031-1; PS92/032-11; PS92/032-12; PS92/038-1; PS92/038-2; PS92/039-17; PS92/043-24; PS92/044-1; PS92/045-1; PS92/047-1; PS92/047-2; PS92/047-23; PS92/048-1; PS92/049-1; Rectangular midwater trawl; Ridges - Safe HAVens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic OCean; RMT; Scotia Sea; Sex; South Atlantic Ocean; Southern Ocean; Species; Stereo Microscope; SUIT; Surface and under ice trawl; Tail, length; Telson, length; Uniform resource locator/link to reference; Weddell Sea; Wet mass; Zooplankton
    Type: Dataset
    Format: text/tab-separated-values, 25886 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Energy content measurements on Arctic zooplankton collected during MOSAiC (PS122) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: This dataset contains energy content measurements performed on zooplankton collected in the Arctic Ocean during the MOSAiC expedition (PS122) from November 2019 untill September 2020. Energy content measurements were done on Apherusa glacialis, Themisto abyssorum, Chaetognatha, Thysanoessa longicaudata and Calanus hyperboreus. These species are all known prey of polar cod (Boreogadus saida), and their energy content was measured to be included in a bioenergetic model of the growth rate of this predator and to gain insight in the differences between prey species. The meaurements were performed on freeze-dried specimens using a 6725 semi-micro oxygen calorimeter (Parr, USA) connected to a 6772 calorimetric thermometer (Parr, USA).
    Keywords: Arctic; Arctic Ocean; BEAST; bomb-calorimetry; energy density; MOSAiC; MOSAiC_ECO; MOSAiC20192020; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Nansen closing net; NN; Polarstern; PS122/1; PS122/1_7-48; PS122/1_7-81; PS122/2; PS122/2_17-40; PS122/2_17-77; PS122/2_18-33; PS122/2_19-16; PS122/2_19-31; PS122/2_20-11; PS122/2_20-16; PS122/2_20-24; PS122/2_21-42; PS122/2_22-24; PS122/3; PS122/3_30-69; PS122/3_31-62; PS122/3_36-112; PS122/3_37-108; PS122/3_39-38; PS122/3_39-55; PS122/4; PS122/4_44-75; PS122/4_45-32; PS122/4_45-55; PS122/4_46-41; PS122/4_47-135; PS122/4_48-213; PS122/4_49-21; PS122/5; PS122/5_61-196; PS122/5_62-90; Remotely operated sensor platform BEAST; Ring net; RN; Zooplankton
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Allometric relationships of ecologically important Antarctic and Arctic zooplankton and fish species (2022)
    Springer
    In:  EPIC3Polar Bioloy, Springer
    Details
    Publication Date: 2023-06-21
    Description: Allometric relationships between body properties of animals are useful for a wide variety of purposes, such as estimation of biomass, growth, population structure, bioenergetic modelling and carbon flux studies. This study summarizes allometric relationships of zooplankton and nekton species that play major roles in polar marine food webs. Measurements were performed on 639 individuals of 15 species sampled during three expeditions in the Southern Ocean (winter and summer) and 2374 individuals of 14 species sampled during three expeditions in the Arctic Ocean (spring and summer). The information provided by this study fills current knowledge gaps on relationships between length and wet/dry mass of understudied animals, such as various gelatinous zooplankton, and of animals from understudied seasons and maturity stages, for example, for the krill Thysanoessa macrura and larval Euphausia superba caught in winter. Comparisons show that there is intra-specific variation in length–mass relationships of several species depending on season, e.g. for the amphipod Themisto libellula. To investigate the potential use of generalized regression models, comparisons between sexes, maturity stages or age classes were performed and are discussed, such as for the several krill species and T. libellula. Regression model comparisons on age classes of the fish E. antarctica were inconclusive about their general use. Other allometric measurements performed on carapaces, eyes, heads, telsons, tails and otoliths provided models that proved to be useful for estimating length or mass in, e.g. diet studies. In some cases, the suitability of these models may depend on species or developmental stages.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
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    PAPER (OA)
  • 9
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    Reviews and syntheses: A framework to observe, understand and project ecosystem response to environmental change in the East Antarctic Southern Ocean (2022)
    Copernicus GmbH
    In:  EPIC3Biogeosciences, Copernicus GmbH, 19(22), pp. 5313-5342, ISSN: 1810-6277
    Details
    Publication Date: 2024-04-29
    Description: 〈jats:p〉Abstract. Systematic long-term studies on ecosystem dynamics are largely lacking from the East Antarctic Southern Ocean, although it is well recognized that they are indispensable to identify the ecological impacts and risks of environmental change. Here, we present a framework for establishing a long-term cross-disciplinary study on decadal timescales. We argue that the eastern Weddell Sea and the adjacent sea to the east, off Dronning Maud Land, is a particularly well suited area for such a study, since it is based on findings from previous expeditions to this region. Moreover, since climate and environmental change have so far been comparatively muted in this area, as in the eastern Antarctic in general, a systematic long-term study of its environmental and ecological state can provide a baseline of the current situation, which will be important for an assessment of future changes from their very onset, with consistent and comparable time series data underpinning and testing models and their projections. By establishing an Integrated East Antarctic Marine Research (IEAMaR) observatory, long-term changes in ocean dynamics, geochemistry, biodiversity, and ecosystem functions and services will be systematically explored and mapped through regular autonomous and ship-based synoptic surveys. An associated long-term ecological research (LTER) programme, including experimental and modelling work, will allow for studying climate-driven ecosystem changes and interactions with impacts arising from other anthropogenic activities. This integrative approach will provide a level of long-term data availability and ecosystem understanding that are imperative to determine, understand, and project the consequences of climate change and support a sound science-informed management of future conservation efforts in the Southern Ocean. 〈/jats:p〉
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
    Format: application/pdf
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