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Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stomach contents of squids

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Název: Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stomach contents of squids
Autoři: Kremer, Kira Izabela, Oesterwind, Daniel, Sell, Anne F
Informace o vydavateli: PANGAEA
Rok vydání: 2025
Sbírka: PANGAEA - Data Publisher for Earth & Environmental Science (AWI Bremerhaven / MARUM Bremen)
Témata: Cephalopoda, mantle length, stomach content, presence/absence, Cephalopods, Crustacea, Date/Time of event, Date/Time of event 2, Depth, water, bottom/maximum, top/minimum, Elevation of event, Elevation of event 2, Event label, Family, Fish, Food web, Gastropoda, Gear, Hook and line, Identification, Latitude of event, Latitude of event 2, Location, Location of event, Longitude of event, Longitude of event 2, Measured, Method/Device of event
Geografické téma: MEDIAN LATITUDE: -25.766498 * MEDIAN LONGITUDE: 12.956356 * SOUTH-BOUND LATITUDE: -31.992820 * WEST-BOUND LONGITUDE: 10.862700 * NORTH-BOUND LATITUDE: -20.049370 * EAST-BOUND LONGITUDE: 15.849520 * DATE/TIME START: 2021-09-13T01:00:49 * DATE/TIME END: 2021-10-08T05:01:21 * MINIMUM ELEVATION: -4761.9 m * MAXIMUM ELEVATION: -314.4 m
Popis: Squids were collected during the research cruise SO285 on RV Sonne in the northern (nBUS) and southern (sBUS) Benguela Upwelling System between September 13 and October 8, 2021 in order to determine their trophic position and nutritional ecology. The cruise was part of the TRAFFIC (Trophic tRAnsfer eFFICiency in the Benguela Current) project. Samples were retrieved from rectangular midwater trawl (RMT) net hauls at 8 stations in the nBUS (sampling ranged from surface down to 230–600 m) and 5 stations in the sBUS (sampling ranged from surface down to 500–750 m). Furthermore, some squids were caught using hook and line in the upper two meters of the water column at 2 stations in the nBUS (ranging from 20 to 115 min per station, 4–5 rods) and 4 stations in the sBUS (ranging from 45 to 105 min per station, 4–6 rods). At 1 station in sBUS one squid was retrieved from a neuston catamaran haul (NCAT) used to sample the surface layer (0­–20 cm sampling depth). Dorsal mantle length (DML) of each specimen was measured to the nearest mm below. Visual stomach content analyses of 53 stomachs from chosen epi- and mesopelagic squid species were performed using a stereo-microscope (7.5–50x magnification). Stomach content analyses showed that squid species preyed on a variety of organisms ranging from crustaceans to lanternfishes (Myctophidae) and flying squids (Ommastrephidae).
Druh dokumentu: dataset
Popis souboru: text/tab-separated-values, 764 data points
Jazyk: English
Relation: Kremer, Kira Izabela; Hagen, Wilhelm; Oesterwind, Daniel; Duncan, Sabrina; Bode-Dalby, Maya; Dorschner, Sabrina; Dudeck, Tim; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System elucidated by combining stomach content, stable isotope and fatty acid analyses. Marine Biology, 172(2), 32, https://doi.org/10.1007/s00227-024-04592-2; Bode-Dalby, Maya; Dorschner, Sabrina; Kremer, Kira Izabela; Hagen, Wilhelm; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stable isotope baseline measurements [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974073; Kremer, Kira Izabela; Hagen, Wilhelm; Dorschner, Sabrina; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Fatty acid contents of squids [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974064; Kremer, Kira Izabela; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stable isotope measurements of squids [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974072; https://doi.pangaea.de/10.1594/PANGAEA.974071; https://doi.org/10.1594/PANGAEA.974071
DOI: 10.1594/PANGAEA.974071
Dostupnost: https://doi.pangaea.de/10.1594/PANGAEA.974071
https://doi.org/10.1594/PANGAEA.974071
Rights: CC-BY-4.0: Creative Commons Attribution 4.0 International ; Access constraints: unrestricted ; info:eu-repo/semantics/openAccess
Přístupové číslo: edsbas.8D57AD24
Databáze: BASE
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  – Url: https://doi.pangaea.de/10.1594/PANGAEA.974071#
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  Label: Title
  Group: Ti
  Data: Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stomach contents of squids
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  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Kremer%2C+Kira+Izabela%22">Kremer, Kira Izabela</searchLink><br /><searchLink fieldCode="AR" term="%22Oesterwind%2C+Daniel%22">Oesterwind, Daniel</searchLink><br /><searchLink fieldCode="AR" term="%22Sell%2C+Anne+F%22">Sell, Anne F</searchLink>
– Name: Publisher
  Label: Publisher Information
  Group: PubInfo
  Data: PANGAEA
– Name: DatePubCY
  Label: Publication Year
  Group: Date
  Data: 2025
– Name: Subset
  Label: Collection
  Group: HoldingsInfo
  Data: PANGAEA - Data Publisher for Earth & Environmental Science (AWI Bremerhaven / MARUM Bremen)
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Cephalopoda%22">Cephalopoda</searchLink><br /><searchLink fieldCode="DE" term="%22mantle+length%22">mantle length</searchLink><br /><searchLink fieldCode="DE" term="%22stomach+content%22">stomach content</searchLink><br /><searchLink fieldCode="DE" term="%22presence%2Fabsence%22">presence/absence</searchLink><br /><searchLink fieldCode="DE" term="%22Cephalopods%22">Cephalopods</searchLink><br /><searchLink fieldCode="DE" term="%22Crustacea%22">Crustacea</searchLink><br /><searchLink fieldCode="DE" term="%22Date%2FTime+of+event%22">Date/Time of event</searchLink><br /><searchLink fieldCode="DE" term="%22Date%2FTime+of+event+2%22">Date/Time of event 2</searchLink><br /><searchLink fieldCode="DE" term="%22Depth%22">Depth</searchLink><br /><searchLink fieldCode="DE" term="%22water%22">water</searchLink><br /><searchLink fieldCode="DE" term="%22bottom%2Fmaximum%22">bottom/maximum</searchLink><br /><searchLink fieldCode="DE" term="%22top%2Fminimum%22">top/minimum</searchLink><br /><searchLink fieldCode="DE" term="%22Elevation+of+event%22">Elevation of event</searchLink><br /><searchLink fieldCode="DE" term="%22Elevation+of+event+2%22">Elevation of event 2</searchLink><br /><searchLink fieldCode="DE" term="%22Event+label%22">Event label</searchLink><br /><searchLink fieldCode="DE" term="%22Family%22">Family</searchLink><br /><searchLink fieldCode="DE" term="%22Fish%22">Fish</searchLink><br /><searchLink fieldCode="DE" term="%22Food+web%22">Food web</searchLink><br /><searchLink fieldCode="DE" term="%22Gastropoda%22">Gastropoda</searchLink><br /><searchLink fieldCode="DE" term="%22Gear%22">Gear</searchLink><br /><searchLink fieldCode="DE" term="%22Hook+and+line%22">Hook and line</searchLink><br /><searchLink fieldCode="DE" term="%22Identification%22">Identification</searchLink><br /><searchLink fieldCode="DE" term="%22Latitude+of+event%22">Latitude of event</searchLink><br /><searchLink fieldCode="DE" term="%22Latitude+of+event+2%22">Latitude of event 2</searchLink><br /><searchLink fieldCode="DE" term="%22Location%22">Location</searchLink><br /><searchLink fieldCode="DE" term="%22Location+of+event%22">Location of event</searchLink><br /><searchLink fieldCode="DE" term="%22Longitude+of+event%22">Longitude of event</searchLink><br /><searchLink fieldCode="DE" term="%22Longitude+of+event+2%22">Longitude of event 2</searchLink><br /><searchLink fieldCode="DE" term="%22Measured%22">Measured</searchLink><br /><searchLink fieldCode="DE" term="%22Method%2FDevice+of+event%22">Method/Device of event</searchLink>
– Name: Subject
  Label: Subject Geographic
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22MEDIAN+LATITUDE%3A+-25%2E766498+*+MEDIAN+LONGITUDE%3A+12%2E956356+*+SOUTH-BOUND+LATITUDE%3A+-31%2E992820+*+WEST-BOUND+LONGITUDE%3A+10%2E862700+*+NORTH-BOUND+LATITUDE%3A+-20%2E049370+*+EAST-BOUND+LONGITUDE%3A+15%2E849520+*+DATE%2FTIME+START%3A+2021-09-13T01%3A00%3A49+*+DATE%2FTIME+END%3A+2021-10-08T05%3A01%3A21+*+MINIMUM+ELEVATION%3A+-4761%2E9+m+*+MAXIMUM+ELEVATION%3A+-314%2E4+m%22">MEDIAN LATITUDE: -25.766498 * MEDIAN LONGITUDE: 12.956356 * SOUTH-BOUND LATITUDE: -31.992820 * WEST-BOUND LONGITUDE: 10.862700 * NORTH-BOUND LATITUDE: -20.049370 * EAST-BOUND LONGITUDE: 15.849520 * DATE/TIME START: 2021-09-13T01:00:49 * DATE/TIME END: 2021-10-08T05:01:21 * MINIMUM ELEVATION: -4761.9 m * MAXIMUM ELEVATION: -314.4 m</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: Squids were collected during the research cruise SO285 on RV Sonne in the northern (nBUS) and southern (sBUS) Benguela Upwelling System between September 13 and October 8, 2021 in order to determine their trophic position and nutritional ecology. The cruise was part of the TRAFFIC (Trophic tRAnsfer eFFICiency in the Benguela Current) project. Samples were retrieved from rectangular midwater trawl (RMT) net hauls at 8 stations in the nBUS (sampling ranged from surface down to 230–600 m) and 5 stations in the sBUS (sampling ranged from surface down to 500–750 m). Furthermore, some squids were caught using hook and line in the upper two meters of the water column at 2 stations in the nBUS (ranging from 20 to 115 min per station, 4–5 rods) and 4 stations in the sBUS (ranging from 45 to 105 min per station, 4–6 rods). At 1 station in sBUS one squid was retrieved from a neuston catamaran haul (NCAT) used to sample the surface layer (0­–20 cm sampling depth). Dorsal mantle length (DML) of each specimen was measured to the nearest mm below. Visual stomach content analyses of 53 stomachs from chosen epi- and mesopelagic squid species were performed using a stereo-microscope (7.5–50x magnification). Stomach content analyses showed that squid species preyed on a variety of organisms ranging from crustaceans to lanternfishes (Myctophidae) and flying squids (Ommastrephidae).
– Name: TypeDocument
  Label: Document Type
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  Data: dataset
– Name: Format
  Label: File Description
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  Data: text/tab-separated-values, 764 data points
– Name: Language
  Label: Language
  Group: Lang
  Data: English
– Name: NoteTitleSource
  Label: Relation
  Group: SrcInfo
  Data: Kremer, Kira Izabela; Hagen, Wilhelm; Oesterwind, Daniel; Duncan, Sabrina; Bode-Dalby, Maya; Dorschner, Sabrina; Dudeck, Tim; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System elucidated by combining stomach content, stable isotope and fatty acid analyses. Marine Biology, 172(2), 32, https://doi.org/10.1007/s00227-024-04592-2; Bode-Dalby, Maya; Dorschner, Sabrina; Kremer, Kira Izabela; Hagen, Wilhelm; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stable isotope baseline measurements [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974073; Kremer, Kira Izabela; Hagen, Wilhelm; Dorschner, Sabrina; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Fatty acid contents of squids [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974064; Kremer, Kira Izabela; Sell, Anne F (2025): Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stable isotope measurements of squids [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.974072; https://doi.pangaea.de/10.1594/PANGAEA.974071; https://doi.org/10.1594/PANGAEA.974071
– Name: DOI
  Label: DOI
  Group: ID
  Data: 10.1594/PANGAEA.974071
– Name: URL
  Label: Availability
  Group: URL
  Data: https://doi.pangaea.de/10.1594/PANGAEA.974071<br />https://doi.org/10.1594/PANGAEA.974071
– Name: Copyright
  Label: Rights
  Group: Cpyrght
  Data: CC-BY-4.0: Creative Commons Attribution 4.0 International ; Access constraints: unrestricted ; info:eu-repo/semantics/openAccess
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  Label: Accession Number
  Group: ID
  Data: edsbas.8D57AD24
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1594/PANGAEA.974071
    Languages:
      – Text: English
    Subjects:
      – SubjectFull: MEDIAN LATITUDE: -25.766498 * MEDIAN LONGITUDE: 12.956356 * SOUTH-BOUND LATITUDE: -31.992820 * WEST-BOUND LONGITUDE: 10.862700 * NORTH-BOUND LATITUDE: -20.049370 * EAST-BOUND LONGITUDE: 15.849520 * DATE/TIME START: 2021-09-13T01:00:49 * DATE/TIME END: 2021-10-08T05:01:21 * MINIMUM ELEVATION: -4761.9 m * MAXIMUM ELEVATION: -314.4 m
        Type: general
      – SubjectFull: Cephalopoda
        Type: general
      – SubjectFull: mantle length
        Type: general
      – SubjectFull: stomach content
        Type: general
      – SubjectFull: presence/absence
        Type: general
      – SubjectFull: Cephalopods
        Type: general
      – SubjectFull: Crustacea
        Type: general
      – SubjectFull: Date/Time of event
        Type: general
      – SubjectFull: Date/Time of event 2
        Type: general
      – SubjectFull: Depth
        Type: general
      – SubjectFull: water
        Type: general
      – SubjectFull: bottom/maximum
        Type: general
      – SubjectFull: top/minimum
        Type: general
      – SubjectFull: Elevation of event
        Type: general
      – SubjectFull: Elevation of event 2
        Type: general
      – SubjectFull: Event label
        Type: general
      – SubjectFull: Family
        Type: general
      – SubjectFull: Fish
        Type: general
      – SubjectFull: Food web
        Type: general
      – SubjectFull: Gastropoda
        Type: general
      – SubjectFull: Gear
        Type: general
      – SubjectFull: Hook and line
        Type: general
      – SubjectFull: Identification
        Type: general
      – SubjectFull: Latitude of event
        Type: general
      – SubjectFull: Latitude of event 2
        Type: general
      – SubjectFull: Location
        Type: general
      – SubjectFull: Location of event
        Type: general
      – SubjectFull: Longitude of event
        Type: general
      – SubjectFull: Longitude of event 2
        Type: general
      – SubjectFull: Measured
        Type: general
      – SubjectFull: Method/Device of event
        Type: general
    Titles:
      – TitleFull: Trophic ecology of squids in the Benguela Upwelling System assessed through stomach content, fatty acid and stable isotopes analyses in austral spring 2021 - Stomach contents of squids
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            – D: 01
              M: 01
              Type: published
              Y: 2025
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