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  • Sample depth (m): 3200 - 3300
  • Nansen Legacy Search
Enter cruise number to show event(s) for that cruise
Sample depth in meters
Enter upper or lower sample depth to search on using the operators.

Station name

  • P7 (NLEG25/NPAL16)
  • P7 (NLEG25/NPAL16) Ice
  • NLEG24_1

Person of interest

  • Angela Stippkugel (225)
  • Gunnar Bratbak (169)
  • Marit Reigstad (98)
  • Rolf Gradinger (65)
  • Anna Vader (45)
  • Aud Larsen (39)
  • Jorun Egge (33)
  • Tatiana Tsagaraki (33)
  • Bente Edvardsen (28)
  • Murat Van Ardelan (20)
  • Agneta Fransson (17)
  • Melissa Chierici (17)
  • Philipp Assmy (15)
  • Miriam Marquardt (13)
  • Tine Rasmussen (10)
  • Angelika Renner (1)
  • Ruth-Anne Sandaa (1)

Institution

  • Norwegian University of Science and Technology
  • University of Tromsø
  • University of Bergen
  • University Centre in Svalbard
  • Norwegian Polar Institute
  • University of Oslo
  • Institute of Marine Research
Displaying 1 - 10 of 641

P7 (NLEG25/NPAL16)

  • Metabarcoding Q1_CC

    Event ID: 0f04afb1-8917-11e9-8a84-a0481c9e7d26
    Parent Event ID: 6680a8f0-870b-11eb-a0a8-5f5a32a57a13
    Event date: 2021-03-17T10:27:39
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 59' 36" N , 29° 54' 31" E
    Cruise number: 2021703
    Cruise name: 2021 Seasonal Study Q1
    Sampletype: Chlorophyll a > 10 um
    Sampling protocol: Nansen Legacy sampling Protocol_version 4_7.12
    Gear type: CTD w/bottles
    Sample depth (m): 3,290.00
    Bottom depth (m): 3,302.55
    Person of Interest
    Name: Anna Vader
    Email: annav@unis.no
    Institution: University Centre in Svalbard
    Show more metadata

    Metabarcoding Q1_CC

    pi_name: Anna Vader

    Abstract

    Chlorophyll a filtration through GFF and 10µm filter to check for fluoroscence.


    pi_email: annav@unis.no
    projectID: The Nansen Legacy (RCN # 276730)
    pi_address: UNIS longyearbyen
    recordedBy: Cheshtaa Chitkara, Snorre Flo
    pi_institution: UNIS
    Created: 2021-04-26T11:45:51
    Modified: 2021-08-12T08:38:02
    History: 2021-04-26T11:45:51Z: Initial read in of the log files. 2021-05-31T09:24:53Z: Updating station names 2021-08-12T08:38:02Z: Standardising PI email and institutions
    Event remarks: CTD standard deep
    Source document: AeN_2021703_metadata_chla_Cheshtaa_edits.xlsx
    statID: 28
    end_date: 2021-03-17 00:00:00
    end_time: 13:39:03.776000
    start_date: 2021-03-17 00:00:00
    vesselName: Kronprins Haakon
    description: Bottom
    endDecimalLatitude: 81.9906789166667
    endDecimalLongitude: 29.8549903333333
    maximumDepthInMeters: 3371.135
    minimumDepthInMeters: 0
    filteredVolumeInMilliliters: 1000
  • Metabarcoding Q1_CC

    Event ID: 0f04afc0-8917-11e9-8a84-a0481c9e7d26
    Parent Event ID: 6680a8f0-870b-11eb-a0a8-5f5a32a57a13
    Event date: 2021-03-17T10:27:39
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 59' 36" N , 29° 54' 31" E
    Cruise number: 2021703
    Cruise name: 2021 Seasonal Study Q1
    Sampletype: Chlorophyll a tot
    Sampling protocol: Nansen Legacy sampling Protocol_version 4_7.11
    Gear type: CTD w/bottles
    Sample depth (m): 3,290.00
    Bottom depth (m): 3,302.55
    Person of Interest
    Name: Anna Vader
    Email: annav@unis.no
    Institution: University Centre in Svalbard
    Show more metadata

    Metabarcoding Q1_CC

    pi_name: Anna Vader

    Abstract

    Chlorophyll a filtration through GFF and 10µm filter to check for fluoroscence.


    pi_email: annav@unis.no
    projectID: The Nansen Legacy (RCN # 276730)
    pi_address: UNIS longyearbyen
    recordedBy: Cheshtaa Chitkara, Snorre Flo
    pi_institution: UNIS
    Created: 2021-04-26T11:45:51
    Modified: 2021-08-12T08:38:02
    History: 2021-04-26T11:45:51Z: Initial read in of the log files. 2021-05-31T09:24:53Z: Updating station names 2021-08-12T08:38:02Z: Standardising PI email and institutions
    Event remarks: CTD standard deep
    Source document: AeN_2021703_metadata_chla_Cheshtaa_edits.xlsx
    statID: 28
    end_date: 2021-03-17 00:00:00
    end_time: 13:39:03.776000
    start_date: 2021-03-17 00:00:00
    vesselName: Kronprins Haakon
    description: Bottom
    endDecimalLatitude: 81.9906789166667
    endDecimalLongitude: 29.8549903333333
    maximumDepthInMeters: 3371.135
    minimumDepthInMeters: 0
    filteredVolumeInMilliliters: 1000
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: d7e843fe-c286-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Protist abundance and taxonomy
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Event remarks: FlowCytometry_PicoNanoplankton
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    fixative: 25% Glutaraldehyde
    storageTemp: neg 80 C
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: 9aaf55ea-c835-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: HPLC Pigments
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    storageTemp: neg 80 C
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: 8c70ca14-c285-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Chlorophyll a tot
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    fixative: Methanol
    storageTemp: Cool room
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: ba84d1a8-c284-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Nutrients
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Event remarks: excess Nutrient control
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    storageTemp: neg 20 C
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: fc8e63b2-c288-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Nutrients
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Event remarks: Ammonia
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    storageTemp: neg 20 C
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: 69f39d98-c287-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Microbial abundance
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Event remarks: FlowCytometry_BacteriaHNF
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    fixative: 25% Glutaraldehyde
    storageTemp: neg 80 C
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: 2fe22c4e-c289-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Microzooplankton abundance
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Event remarks: MZP
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    fixative: 1% acidic Lugol
    storageTemp: Room temp
  • Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    Event ID: 9def43f8-c288-11e9-8f49-000c29fb4a96
    Parent Event ID: 84baf08e-b5ef-11e9-acd1-a0481c9e7d26
    Event date: 2019-08-20T18:08:00
    Station: P7 (NLEG25/NPAL16)
    Location: 81° 58' 9" N , 29° 37' 18" E
    Cruise number: 2019706
    Cruise name: 2019 Seasonal Study Q3
    Bottle number: 4
    Sampletype: Protist abundance and taxonomy
    Sampling protocol: Nansen Legacy Protocol
    Gear type: CTD w/bottles
    Sample depth (m): 3,280.00
    Bottom depth (m): 3,293.25
    Person of Interest
    Name: Angela Stippkugel
    Email: angela.stippkugel@ntnu.no
    Institution: Norwegian University of Science and Technology
    Show more metadata

    Trophic transfer and nutritional variations at the primary producer-consumer interface of Barents Sea plankton communities

    pi_name: Angela Stippkugel

    Abstract

    This PhD project aims to investigate nutritional variations and selective feeding of Arctic and sub- Arctic plankton consumers along latitudinal gradients in dierent seasons as part of the Nansen Legacy project focusing on comprehensive studies of the Barents Sea ecosystems in the context of ongoing climate change. The main focus will be placed on the primary producer-consumer link of lower trophic plankton communities in the Barents Sea and adjacent Arctic Ocean. By means of dilution and/or grazer exclusion experiments, eects of food quantity and quality on growth and nutritional composition of consumers will be investigated as well as selective grazing and food web structures using natural plankton communities. As main grazers in the microbial loop, microzooplankton (20-200 m) represent an important intermediate link between primary producers and secondary consumers such as mesozooplankton and sh larvae. The capacities of micrograzers to buer nutritional imbalances at the primary producerconsumer interface (trophic upgrading) will be considered. Mesozooplankton (0.2 mm-2 cm) in turn represents an important food source for higher trophic levels such as early life stages of sh and planktivorous shes. Changes in the quantities and nutritional quality at lower trophic levels may have consequences for higher trophic ones. Arctic-inuenced regions of the Barents Sea dier fundamentally from Atlantic-inuenced ones. Experiments along a south-to-north gradient will help to quantify the structure and function of the poorly described northern ecosystem in contrast to central and southern ecosystems. The results will help to understand the dynamics between primary producers and consumers as well as the overall energy transfer eciencies in marine food webs. This knowledge can be used to improve future projections and management concepts for the ecosystem of the Barents Sea in particular and other transitional polar regions in general.


    pi_email: angela.stippkugel@ntnu.no
    projectID: RCN # 276730
    pi_address: Trondhjem Biologisk Stasjon, Bynesveien 46, 7491 Trondheim
    recordedBy: Angela Stippkugel
    pi_institution: NTNU Trondheim
    Created: 2020-05-06T13:42:15
    Modified: 2021-08-12T08:45:34
    History: 2020-05-06T13:42:15Z: Initial read in of the log files. 2021-08-12T08:45:34Z: Standardising PI email and institutions
    Event remarks: FlowCytometry_PicoNanoplankton
    Source document: AeN_2019706_AStippkugel.xlsx
    statID: 188
    fixative: 25% Glutaraldehyde
    storageTemp: neg 80 C

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Cruise name

  • 2022 JC3 Closing the Gaps’
  • 2021 Seasonal Study Q2
  • 2021 Seasonal Study Q1
  • 2019 Seasonal Study Q3

Gear Type

  • CTD w/bottles

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  • Protist abundance and taxonomy (66)
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  • Chlorophyll a > 10 um (13)
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  • Dissolved Organic Carbon (3)
  • Organic matter characterization (3)
  • Protist diversity <10 um (3)
  • Total organic carbon (3)
  • Dilution culture (1)
  • Viral diversity (FeCl3) (1)

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  • (-) 3200 - 3300
  • 3300 - 3400

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