Nansen Legacy Tools | sios-svalbard.org

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

Event ID: 0cf4f88a-bdb4-11e9-8f49-000c29fb4a96

Parent Event ID: 1c514a32-bdb3-11e9-8f49-000c29fb4a96

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Isotopes

Sampling protocol: N uptake to be included in version 5

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Enriched Light Ammonia

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: N uptake
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 250

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

Event ID: 05a3741c-bdb4-11e9-8f49-000c29fb4a96

Parent Event ID: 1c514a32-bdb3-11e9-8f49-000c29fb4a96

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Isotopes

Sampling protocol: N uptake to be included in version 5

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Enriched Dark Nitrate

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: N uptake
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 250

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

Event ID: 210caf58-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 83899541-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Total carbon (t0) sample

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 0.1

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

Event ID: 236318b4-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 83899541-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: After 24 hour incubation

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 250
filteredVolumeInMilliliters: 250

Child events

Event ID	Event datetime	Cruise number	Bottle number	Bottom depth (m)	Sample depth (m)	Station name ref	Gear Type	PI Name	PI Institution
cfd0eb76-bdb3-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
cde3d288-bdb3-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
cce80b60-bdb3-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø

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

Event ID: 198824f6-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 83899541-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Total carbon (t0) sample

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 0.1

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

Event ID: 1c514a32-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 83899541-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: After 24 hour incubation

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 0.1

Child events

Event ID	Event datetime	Cruise number	Bottle number	Bottom depth (m)	Sample depth (m)	Station name ref	Gear Type	PI Name	PI Institution
1237ae1e-bdb4-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
0e1b07f4-bdb4-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
06a523a6-bdb4-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
efd6aece-bdb3-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
f0d10c0c-bdb3-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
10d58a82-bdb4-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
0cf4f88a-bdb4-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø
05a3741c-bdb4-11e9-8f49-000c29fb4a96	2019-08-13T17:46:00Z	2019706	21	338.39	9.99	P4 (NLEG11)	CTD w/bottles	Rolf Gradinger	University of Tromsø

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

Event ID: 9ca07af0-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 83899541-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Total carbon (t0) sample N

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 0.1

Particulate absorbtion

Event ID: 976344e0-bcfb-11e9-8f49-000c29fb4a96

Parent Event ID: 83899541-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 21

Sampletype: Particulate absorption

Sampling protocol: Not included in Protocoll version 4 (should be added to version 5)

Gear type: CTD w/bottles

Sample depth (m): 9.99

Bottom depth (m): 338.39

Person of Interest

Name: Pedro Duarte

Email: pedro.duarte@npolar.no

Institution: Norwegian Polar Institute

Show more metadata

Particulate absorbtion

pi_name: Pedro Duarte

Abstract

Particulate absorbtion is taken by request from Pedro Duarte because it will be usefull to modell the absorbtion of ight in the water column. Samples were taken from the standard depth of the CTD down to 200m.

pi_email: pedro.duarte@npolar.no
projectID: RCN # 276730
pi_address: Framsenteret, Hjalmar Johansensgate 14, 9007 Tromsø
recordedBy: Anette Wold
pi_institution: NorwegianPolar Institute

Created: 2020-05-06T13:43:01

Modified: 2020-05-06T13:43:01

History: 2020-05-06T13:43:01Z: Initial read in of the log files.

Source document: AeN_2019706_particle_absorption_anette.xlsx

statID: 165
parentEventID: 83899541-b5ef-11e9-acd1-a0481c9e7d26
maximumDepthInMeters: 325
minimumDepthInMeters: 0

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

Event ID: 31325fea-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 8257e2d4-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 20

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 20.17

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Total carbon (t0) sample

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 0.1

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

Event ID: 3f54b76c-bdb3-11e9-8f49-000c29fb4a96

Parent Event ID: 8257e2d2-b5ef-11e9-acd1-a0481c9e7d26

Event date: 2019-08-13T17:46:00

Station: P4 (NLEG11)

Location: 79° 44' 58" N , 33° 59' 50" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Bottle number: 19

Sampletype: Primary production (14C-CO2)

Sampling protocol: 7.22

Gear type: CTD w/bottles

Sample depth (m): 30.18

Bottom depth (m): 338.39

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: RCN #276730
pi_address: Muninbakken 21, 9009 Tromsø
recordedBy: Martí Amargant-Arumí
pi_institution: UiT the Arctic University of Norway

Created: 2020-05-06T13:42:25

Modified: 2021-08-12T12:31:54

History: 2020-05-06T13:42:25Z: Initial read in of the log files. 2021-08-12T12:31:54Z: Standardising PI email and institutions

Event remarks: Total carbon (t0) sample

Source document: AeN_Q3_Marti_Logsheet.xlsx

statID: 165
intendedMethod: C14 incubations
maximumDepthInMeters: 325
minimumDepthInMeters: 0
sampleVolumeInMilliliters: 0.1

Station name

Person of interest

Institution

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

Particulate absorbtion

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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Sample depth (m)