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  • 1
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    Unknown
    Physical oceanography measured on water bottle samples based on ship CTD during RV POLARSTERN cruise PS124 (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: This dataset contains the hydrographic bottle data collected with the ship based CTD rosette during the cruise PS124 - COSMUS (Continental Shelf Multidisciplinary Flux Study). The CTD is an SBE911plus with 24 bottles, 12 liters each. The CTD/Rosette was equipped with duplicate sensors for temperature, salinity, and oxygen, and one sensor each for pressure, substance fluorescence Chl. a, and beam transmission. An altimeter was mounted to monitor the distance to the seafloor. The CTD profile data, the cruise report as well as publications using this data are linked below.
    Keywords: Antarctic; Antarctica; Attenuation, optical beam transmission; AWI_PhyOce; bottle; Bottle data; Bottle number; Chlorophyll a; Conductivity; COSMUS; CTD; CTD, Sea-Bird, SBE 911plus; CTD, Sea-Bird, SBE 911plus, measured with Temperature sensor, Sea-Bird, SBE3plus; CTD, Sea-Bird, SBE 911plus; Calculation according to Bittig et al. (2018); CTD, Sea-Bird, SBE 911plus; Calculation according to McDougall and Barker (2011); CTD, Sea-Bird, SBE 911plus; measured with Conductivity sensor, Sea-Bird, SBE 4; CTD, Sea-Bird, SBE 911plus; measured with Dissolved oxygen sensor, Sea-Bird, SBE 43; CTD, Sea-Bird, SBE 911plus; measured with Fluorometer, WET Labs, ECO FLRTD; CTD, Sea-Bird, SBE 911plus; measured with Transmissometer, WET Labs, C-Star; CTD/Rosett; CTD/Rosette; CTD casts; CTD data; CTD-RO; DATE/TIME; Density, potential anomaly; DEPTH, water; Event label; Filchner; Filchner Ice Shelf; Filchner Trough; GPF 19-2_039, COSMUS; LATITUDE; LONGITUDE; Oxygen; Oxygen, dissolved; Oxygen saturation; Physical Oceanography @ AWI; Polarstern; Pressure, water; PS124; PS124_100-1; PS124_10-1; PS124_107-1; PS124_109-1; PS124_110-1; PS124_11-1; PS124_111-1; PS124_111-2; PS124_112-1; PS124_11-4; PS124_115-1; PS124_117-1; PS124_12-1; PS124_13-1; PS124_16-2; PS124_20-1; PS124_21-1; PS124_22-2; PS124_23-2; PS124_24-1; PS124_26-2; PS124_26-6; PS124_27-2; PS124_30-1; PS124_31-1; PS124_32-1; PS124_33-1; PS124_34-1; PS124_35-1; PS124_36-1; PS124_37-1; PS124_38-1; PS124_40-1; PS124_41-1; PS124_42-1; PS124_43-1; PS124_44-1; PS124_45-2; PS124_46-1; PS124_47-1; PS124_48-1; PS124_49-2; PS124_50-1; PS124_51-1; PS124_5-2; PS124_52-1; PS124_5-4; PS124_54-2; PS124_54-3; PS124_55-1; PS124_56-1; PS124_57-1; PS124_58-1; PS124_59-1; PS124_60-1; PS124_61-1; PS124_6-2; PS124_62-1; PS124_64-1; PS124_65-2; PS124_66-1; PS124_68-2; PS124_68-3; PS124_72-1; PS124_7-4; PS124_74-2; PS124_76-1; PS124_77-3; PS124_78-1; PS124_80-1; PS124_81-1; PS124_82-1; PS124_83-1; PS124_84-1; PS124_8-5; PS124_86-1; PS124_88-1; PS124_8-9; PS124_90-4; PS124_9-1; PS124_91-2; PS124_93-1; PS124_93-2; PS124_95-1; PS124_96-1; PS124_98-1; Salinity; Salinity, absolute; Temperature, water; Temperature, water, conservative; Temperature, water, potential; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 28224 data points
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  • 2
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    Unknown
    Physical oceanography based on ship CTD during RV POLARSTERN cruise PS124 (2023)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: This dataset contains the hydrographic profile data collected with the ship based CTD rosette during the cruise PS124 - COSMUS (Continental Shelf Multidisciplinary Flux Study). The CTD is an SBE911plus with 24 bottles, 12 liters each. The CTD/Rosette was equipped with duplicate sensors for temperature, salinity, and oxygen, and one sensor each for pressure, substance fluorescence Chl. a, and beam transmission. An altimeter was mounted to monitor the distance to the seafloor. The dataset contains calibrated and quality-controlled parameters as well as uncalibrated parameters, where no quality control was applied. Quality flags are given based on paragraph 6. "Quality flags" from https://www.seadatanet.org/content/download/596/file/SeaDataNet_QC_procedures_V2_%28May_2010%29.pdf . The CTD bottle data, the cruise report as well as publications using this data are linked below. Additional information on the sensor used for the final data set as well as the water depth is given in a separate info-file.
    Keywords: Antarctic; Antarctica; Attenuation, optical beam transmission; AWI_PhyOce; Chlorophyll a; Conductivity; COSMUS; CTD; CTD, Sea-Bird, SBE 911plus; CTD, Sea-Bird, SBE 911plus, measured with Temperature sensor, Sea-Bird, SBE3plus; CTD, Sea-Bird, SBE 911plus; Calculation according to Bittig et al. (2018); CTD, Sea-Bird, SBE 911plus; Calculation according to McDougall and Barker (2011); CTD, Sea-Bird, SBE 911plus; measured with Conductivity sensor, Sea-Bird, SBE 4; CTD, Sea-Bird, SBE 911plus; measured with Dissolved oxygen sensor, Sea-Bird, SBE 43; CTD, Sea-Bird, SBE 911plus; measured with Fluorometer, WET Labs, ECO FLRTD; CTD, Sea-Bird, SBE 911plus; measured with Transmissometer, WET Labs, C-Star; CTD/Rosett; CTD/Rosette; CTD casts; CTD data; CTD profiles; CTD-RO; DATE/TIME; Density, potential anomaly; DEPTH, water; Event label; Filchner; Filchner Ice Shelf; Filchner Trough; GPF 19-2_039, COSMUS; LATITUDE; LONGITUDE; Oxygen; Oxygen, dissolved; Oxygen saturation; Physical Oceanography @ AWI; Polarstern; Pressure, water; PS124; PS124_100-1; PS124_10-1; PS124_107-1; PS124_109-1; PS124_110-1; PS124_11-1; PS124_111-1; PS124_111-2; PS124_112-1; PS124_11-4; PS124_115-1; PS124_117-1; PS124_12-1; PS124_13-1; PS124_16-2; PS124_20-1; PS124_21-1; PS124_22-2; PS124_23-2; PS124_24-1; PS124_26-2; PS124_26-6; PS124_27-2; PS124_30-1; PS124_31-1; PS124_32-1; PS124_33-1; PS124_34-1; PS124_35-1; PS124_36-1; PS124_37-1; PS124_38-1; PS124_40-1; PS124_41-1; PS124_42-1; PS124_43-1; PS124_44-1; PS124_45-2; PS124_46-1; PS124_47-1; PS124_48-1; PS124_49-2; PS124_50-1; PS124_51-1; PS124_5-2; PS124_52-1; PS124_53-1; PS124_5-4; PS124_54-2; PS124_54-3; PS124_55-1; PS124_56-1; PS124_57-1; PS124_58-1; PS124_59-1; PS124_60-1; PS124_61-1; PS124_6-2; PS124_62-1; PS124_64-1; PS124_65-2; PS124_66-1; PS124_68-2; PS124_68-3; PS124_72-1; PS124_7-4; PS124_74-2; PS124_76-1; PS124_77-3; PS124_78-1; PS124_80-1; PS124_81-1; PS124_82-1; PS124_83-1; PS124_84-1; PS124_8-5; PS124_86-1; PS124_88-1; PS124_8-9; PS124_90-3; PS124_90-4; PS124_9-1; PS124_91-2; PS124_93-1; PS124_93-2; PS124_95-1; PS124_96-1; PS124_98-1; Quality flag, attenuation; Quality flag, chlorophyll; Quality flag, conductivity; Quality flag, oxygen; Quality flag, salinity; Quality flag, water temperature; Salinity; Salinity, absolute; Seadatanet flag: Data quality control procedures according to SeaDataNet (2010); Temperature, water; Temperature, water, conservative; Temperature, water, potential; Weddell Sea
    Type: Dataset
    Format: text/tab-separated-values, 1415321 data points
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    DATA PANGAEA
  • 3
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    Fin whale (Balaenoptera physalus) mitogenomics: A cautionary tale of defining sub-species from mitochondrial sequence monophyly (2019)
    Elsevier
    Details
    Publication Date: 2019-06-01
    Print ISSN: 1055-7903
    Electronic ISSN: 1095-9513
    Topics: Biology
    Published by Elsevier
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    PAPER CURRENT
  • 4
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    Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean (2020)
    The Royal Society
    Details
    Publication Date: 2020-12-01
    Description: Southern Hemisphere humpback whales ( Megaptera novaeangliae ) inhabit a wide variety of ecosystems including both low- and high-latitude areas. Understanding the habitat selection of humpback whale populations is key for humpback whale stock management and general ecosystem management. In the Atlantic sector of the Southern Ocean ( ASSO ), the investigation of baleen whale distribution by sighting surveys is temporally restricted to the austral summer. The implementation of autonomous passive acoustic monitoring, in turn, allows the study of vocal baleen whales year-round. This study describes the results of analysing passive acoustic data spanning 12 recording positions throughout the ASSO applying a combination of automatic and manual analysis methods to register humpback whale acoustic activity. Humpback whales were present at nine recording positions with higher acoustic activities towards lower latitudes and the eastern and western edges of the ASSO . During all months, except December (the month with the fewest recordings), humpback whale acoustic activity was registered in the ASSO . The acoustic presence of humpback whales at various locations in the ASSO confirms previous observations that part of the population remains in high-latitude waters beyond austral summer, presumably to feed. The spatial and temporal extent of humpback whale presence in the ASSO suggests that this area may be used by multiple humpback whale breeding populations as a feeding ground.
    Electronic ISSN: 2054-5703
    Topics: Natural Sciences in General
    Published by The Royal Society
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  • 5
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    Humpback whale song recordings suggest common feeding ground occupation by multiple populations (2021)
    Springer Nature
    Details
    Publication Date: 2021-09-22
    Description: Humpback whale males are known to sing on their low-latitude breeding grounds, but it is well established that songs are also commonly produced ‘off-season’ on the feeding grounds or during migration. This opens exciting opportunities to investigate migratory aggregations, study humpback whale behavioral plasticity and potentially even assign individual singers to specific breeding grounds. In this study, we analyzed passive acoustic data from 13 recording positions and multiple years (2011–2018) within the Atlantic sector of the Southern Ocean (ASSO). Humpback whale song was detected at nine recording positions in five years. Most songs were recorded in May, austral fall, coinciding with the rapid increase in sea ice concentration at most recording positions. The spatio-temporal pattern in humpback whale singing activity on Southern Ocean feeding grounds is most likely shaped by local prey availability and humpback whale migratory strategies. Furthermore, the comparative analyses of song structures clearly show a differentiation of two song groups, of which one was solely recorded at the western edge of the ASSO and the other song group was recorded throughout the ASSO. This new finding suggests a common feeding ground occupation by multiple humpback whale populations in the ASSO, allowing for cultural and potentially even genetic exchange among populations.
    Electronic ISSN: 2045-2322
    Topics: Natural Sciences in General
    Published by Springer Nature
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  • 6
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    Calls produced by Ecotype C killer whales (Orcinus orca) off the Eckstroem Iceshelf, Antarctica (2017)
    In:  EPIC3Aquatic Mammals, 43(2), pp. 117-126
    Details
    Publication Date: 2017-03-17
    Description: Killer whales (Orcinus orca) are highly social top predators distributed throughout the worldʼs oceans. They are divided into different ecotypes according to foraging specializations, phenotype, and social organization. For Northern Hemisphere killer whale ecotypes, acoustic behaviour has been shown to relate to foraging strategies and social organization. In contrast to the intensively studied Northern Hemisphere ecotypes, distribution patterns, social structures, and acoustic behaviour of the Southern Hemisphere killer whale ecotypes are poorly known. One of the Southern Hemisphere ecotypes, the Antarctic Ecotype C killer whale, is known to occur in regions with dense pack ice. The limited accessibility of these areas make passive acoustic monitoring (PAM) methods a very effective investigation tool to derive information on ecotype-specific abundance and distribution. During 2 d in February 2013, it was possible to collect concurrent visual and acoustic information of Ecotype C killer whales off the Antarctic continent. From these events, a call type catalogue was compiled. The 2,238 examined calls were subjectively classified into 26 discrete call types. Ten percent of the examined calls were re-classified by two additional independent observers to examine robustness of the classification. Mean classification accordance among observers was 68%. Most call types were composed of more than one call part. Sixty-five percent of all call types were monophonic, and 35% were biphonic. Almost two-third of all call types started with a short, broadband pulse. The variability within call types was relatively high. The Ecotype C vocal repertoire contained typical acoustic features such as biphonation, high call complexity, and generally high variability in frequency modulation. For future studies, the distinct characteristics of some of the call types described herein could potentially serve as acoustic markers for PAM-based differentiation of killer whale ecotypes in the Southern Ocean.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
    Format: application/pdf
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  • 7
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    Visual and passive acoustic observations of blue whale trios from two distinct populations (2019)
    In:  EPIC3Marine Mammal Science, ISSN: 0824-0469
    Details
    Publication Date: 2019-10-07
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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  • 8
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    Seasonal and diel cycles of fin whale acoustic occurrence near Elephant Island, Antarctica (2021)
    Royal Society
    In:  EPIC3Royal Society Open Science, Royal Society, 8(201142), ISSN: 2054-5703
    Details
    Publication Date: 2021-05-28
    Description: This study investigates the relevance of the Elephant Island (EI) region for Southern Hemisphere fin whales (Balaenoptera physalus) in their annual life cycle. We collected 3 years of passive acoustic recordings (January 2013 to February 2016) northwest of EI to calculate time series of fin whale acoustic indices, daily acoustic occurrence, spectrograms, as well as the abundance of their 20-Hz pulses. Acoustic backscatter strength, sea ice concentration and chlorophyll-a composites provided concurrent environmental information for graphic comparisons. Acoustic interannual, seasonal and diel patterns together with visual information and literature resources were used to define the period of occupancy and to infer potential drivers for their behaviour. Spectral results suggest that these fin whales migrate annually to and from offshore central Chile. Acoustic data and visual information reveal their arrival at EI in December to feed without producing their typical 20-Hz pulse. For all 3 years, acoustic activity commences in February, peaks in May and decreases in August, in phase with the onset of their breeding season. Our results emphasize the importance of EI for fin whales throughout most of the year. Our recommendation is to consider EI for establishing a marine protected area to expedite the recovery of this vulnerable species.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 9
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    Multi-year presence of humpback whales in the Atlantic sector of the Southern Ocean but not during El Niño (2021)
    In:  EPIC3Communications Biology, 4(1), ISSN: 2399-3642
    Details
    Publication Date: 2021-07-13
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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  • 10
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    Large-scale spatial variabilities in the humpback whale acoustic presence in the Atlantic sector of the Southern Ocean (2020)
    In:  EPIC3Royal Society Open Science, 7(12), pp. 201347, ISSN: 2054-5703
    Details
    Publication Date: 2020-12-09
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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