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Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 270f57b2-1599-11ec-b81f-005056a2bfc1
Parent Event ID: 87e2cf25-ef09-5c8a-8717-d40e05f1654c
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 10
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 20.52
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Total carbon (t0) sample
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: C14 incubations
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 2603ee6e-1599-11ec-b81f-005056a2bfc1
Parent Event ID: 87e2cf25-ef09-5c8a-8717-d40e05f1654c
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 10
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 20.52
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Total carbon (t0) sample
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: C14 incubations
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 3de6349c-1599-11ec-b81f-005056a2bfc1
Parent Event ID: 6627d152-7580-5e7e-b1c4-244e6379c58b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 6
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 40.44
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Total carbon (t0) sample
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: C14 incubations
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 3cd98ea0-1599-11ec-b81f-005056a2bfc1
Parent Event ID: 6627d152-7580-5e7e-b1c4-244e6379c58b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 6
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 40.44
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Total carbon (t0) sample
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: C14 incubations
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 3abc9d56-1599-11ec-b81f-005056a2bfc1
Parent Event ID: 6627d152-7580-5e7e-b1c4-244e6379c58b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 6
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 40.44
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Total carbon (t0) sample
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: C14 incubations
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 39b4d36a-1599-11ec-b81f-005056a2bfc1
Parent Event ID: 6627d152-7580-5e7e-b1c4-244e6379c58b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 6
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 40.44
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Total carbon (t0) sample
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: C14 incubations
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: c43c3dc0-1599-11ec-b81f-005056a2bfc1
Parent Event ID: e963cb29-8679-57e2-9afe-a41eb173245b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 8
Sampletype: Isotopes
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 30.26
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Enriched Dark Ammonia
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: N uptake
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: c0409e5a-1599-11ec-b81f-005056a2bfc1
Parent Event ID: e963cb29-8679-57e2-9afe-a41eb173245b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 8
Sampletype: Isotopes
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 30.26
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Enriched Dark Ammonia
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: N uptake
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: ace04298-1599-11ec-b81f-005056a2bfc1
Parent Event ID: e963cb29-8679-57e2-9afe-a41eb173245b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 8
Sampletype: Isotopes
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 30.26
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

Show more metadata

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Enriched Light Nitrate
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: N uptake
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: b69b6a4c-1599-11ec-b81f-005056a2bfc1
Parent Event ID: e963cb29-8679-57e2-9afe-a41eb173245b
Event date: 2021-09-16T16:35:28
Station: P11 (NLEG38)
Location: 87° 29' 53" N , 17° 36' 59" W
Cruise number: 2021710
Cruise name: 2021 Joint Cruise 2-2
Bottle number: 8
Sampletype: Isotopes
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 30.26
Bottom depth (m): 4,284.42

Person of Interest

Name: Rolf Gradinger
Email: rolf.gradinger@uit.no
Institution: University of Tromsø

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Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
pi_name: Rolf Gradinger
Abstract
Several functional aspects of pelagic and simpagic primary producers were studied during the Nansen Legacy Q3 cruise. In open water stations (P1, P4, P5), water was sampled from the standard depths 10, 20, 40, 60, 90 and Chl a max. Water from these depths was spiked with radioactively labelled carbon in order to determine to the Carbon fixation rate (i.e. the Primary Production rate) of phototrophic organisms throughout the water column and latitudinal gradient. Additionally, water from 10m and Chla max was spiked with stable isotopes of Carbon (13C) and Nitrogen (15N) to determine the F-ratio (which fraction of the estimated primary production is new production). One incubation bottle was also treated to assess the nitrification activity of microbes. These incubations were deployed attached to the sediment trap moorings and exposed to in situ light and temperature conditions for 24 hours. In parallel, water from the Chla max was used to determine the photosynthetic response of the community to light intensity (P vs I curves). At the ice-covered stations (P6 and P7), the aforementioned water sampling and experimental work was carried as described, and additionally the bottom 3cm of 4 ice cores were sampled and pooled for similar in situ incubations: Under-ice Primary production, Nitrogen uptake and PvsI curve. Water from a meltpond was sampled, spiked and incubated in situ for Primary Production and Nitrogen uptake. A reciprocal transplant experiment was conducted with surface water from stations P1 and P6 and will be analyzed for abundance and community shifts due to changes in environmental factors.

pi_email: rolf.gradinger@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway
Created: 2021-10-12T11:45:31
Modified: 2021-10-12T11:45:31
History: 2021-10-12T11:45:31Z: Initial read in of the log files.
Event remarks: Enriched Light Ammonia
Source document: AeN_2021710_Primary_Production_Marti_04edits.xlsx
statID: 501
end_date: 2021-09-16 00:00:00
end_time: 17:00:58.018000
start_date: 2021-09-16 00:00:00
vesselName: Kronprins Haakon
intendedMethod: N uptake
occurrenceRemarks: CTD w/bottles
endDecimalLatitude: 87.4982575333333
endDecimalLongitude: -17.63347545
maximumDepthInMeters: 90
minimumDepthInMeters: 0

Person of interest

Institution

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

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Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity

Abstract

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Cruise name

Gear Type

Sample type

Sample depth (m)