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NLEG22

Niskin bottles, JC2-1 Joint Process Cruise

Event ID: 11f0a8e7-e4c6-11eb-ae89-005056a2bfc1

Parent Event ID: 511a3570-eba7-11eb-afc5-a3f13bbd5a61

Event date: 2021-07-23T11:15:41

Station: NLEG22

Location: 81° 35' 14" N , 30° 42' 47" E

Cruise number: 2021708

Cruise name: 2021 Joint Cruise 2-1

Bottle number: 7

Sampletype: Niskin Bottle

Sampling protocol: Nansen Legacy Sampling Protocols version 8 section 6.2

Gear type: CTD w/bottles

Sample depth (m): 899.35

Bottom depth (m): 1,545.53

Person of Interest

Name: Elizabeth Jones, Marit Reigstad

Email: elizabeth.jones@hi.no, marit.reigstad@uit.no

Institution: Institute of Marine Research, University of Tromsø

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Niskin bottles, JC2-1 Joint Process Cruise

pi_name: Libby Jones; Marit Reigstad

Abstract

Log of Niskin bottles taken on the JC2-1 Joint Process Cruise (IMR cruise number 2021708) in the Barents Sea, 12th July 2021 - 29th July 2021. A ring of Niksin bottles are bolted to a CTD, and sample water at different depths depending on the water budget provided by the scientists onboard. The water is circulated around the scientists for their sampling. Multiple bottles are sample the same depth if more water is required than one bottle can hold. For details on the method, see version 8 of the Nansen Legacy sampling protocols, section 6.2.

pi_email: elizabeth.jones@hi.no; marit.reigstad@uit.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: IMR, Tromsø; UiT, Tromsø
recordedBy: Luke Marsden
pi_institution: IMR; UIT

Created: 2021-08-10T11:17:50

Modified: 2021-11-04T13:14:18

History: 2021-08-10T11:17:50Z: Initial read in of the log files. 2021-08-10T11:18:37Z: Correcting eventIDs that were duplicated 2021-08-12T09:55:17Z: Standardising PI email and institutions 2021-11-04T13:14:18Z: Retrieving sampledepthinmeters from .btl files

Source document: AeN_2021708_JC21_NISKIN_Luke_Marsden.xlsx

statID: 344
end_date: 2021-07-23 00:00:00
end_time: 12:38:36.903000
start_date: 2021-07-23 00:00:00
vesselName: Kronprins Haakon
endDecimalLatitude: 81.5858350333333
endDecimalLongitude: 30.7172912166667
maximumDepthInMeters: 1540
minimumDepthInMeters: 5

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
f707c8c0-e71b-11eb-a4d0-fb7ecc325611	2021-07-23T11:15:41Z	2021708	7	1545.53	899.35	NLEG22	CTD w/bottles	Melissa Chierici, Agneta Fransson	Institute of Marine Research, Norwegian Polar Institute

345 (2019 Mooring Service/A-Twain)

MSC1 + A-TWAIN
Event ID: eff2a8b0-0ded-11ea-a5f2-000c29fb4a96
Parent Event ID: b3969c99-1011-11ea-a5f2-000c29fb4a96
Event date: 2019-11-19T06:58:00
Station: 345 (2019 Mooring Service/A-Twain)
Location: 81° 32' 56" N , 30° 52' 15" E
Cruise number: 2019710
Cruise name: 2019 Mooring Service/A-Twain
Bottle number: 1
Sampletype: Nutrients
Gear type: CTD w/bottles
Sample depth (m): 891.64
Bottom depth (m): 880.62

Person of Interest

Name: Marit Reigstad
Email: marit.reigstad@uit.no
Institution: University of Tromsø

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MSC1 + A-TWAIN
pi_name: Arild Sundfjord
Abstract
Joint cruise between Nansen Legacy and A-TWAIN/SIOS-InfraNor. Mostly recovery and deployment of moorings, CTD stations and transesects, VM- and L-ADCP transects. Some water sampling for BGC analysis. Glider deployment.

pi_email: arild.sundfjord@npolar.no
projectID: RCN # 276730
pi_address: Fram Centre, 9296 Tromsø, Norway
recordedBy: Arild Sundfjord; Angelika H. H. Renner; Kristine Cerbule; Kristen Fossan; Ceslav Czyz; Øyvind Lundesgaard; Terje Hovland; Marcos Porcires; Kjersti Kalhagen
pi_institution: Norwegian Polar Institute
Created: 2021-02-23T13:46:11
Modified: 2021-08-12T10:10:06
History: 2021-02-23T13:46:11Z: Initial read in of the log files. 2021-08-12T10:10:06Z: Standardising PI email and institutions
Event remarks: Samples labeled as AT800
Source document: AeN_MSC1+A-TWAIN_2019710_2019_SampleLog_28112019.xlsx
statID: 345
end_date: 2019-11-19 00:00:00
start_date: 2019-11-19 00:00:00
MSC1 + A-TWAIN
Event ID: fd1d1f52-0ded-11ea-a5f2-000c29fb4a96
Parent Event ID: b3969c99-1011-11ea-a5f2-000c29fb4a96
Event date: 2019-11-19T06:58:00
Station: 345 (2019 Mooring Service/A-Twain)
Location: 81° 32' 56" N , 30° 52' 15" E
Cruise number: 2019710
Cruise name: 2019 Mooring Service/A-Twain
Bottle number: 1
Sampletype: Chlorophyll a tot
Gear type: CTD w/bottles
Sample depth (m): 891.64
Bottom depth (m): 880.62

Person of Interest

Name: Marit Reigstad
Email: marit.reigstad@uit.no
Institution: University of Tromsø

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MSC1 + A-TWAIN
pi_name: Arild Sundfjord
Abstract
Joint cruise between Nansen Legacy and A-TWAIN/SIOS-InfraNor. Mostly recovery and deployment of moorings, CTD stations and transesects, VM- and L-ADCP transects. Some water sampling for BGC analysis. Glider deployment.

pi_email: arild.sundfjord@npolar.no
projectID: RCN # 276730
pi_address: Fram Centre, 9296 Tromsø, Norway
recordedBy: Arild Sundfjord; Angelika H. H. Renner; Kristine Cerbule; Kristen Fossan; Ceslav Czyz; Øyvind Lundesgaard; Terje Hovland; Marcos Porcires; Kjersti Kalhagen
pi_institution: Norwegian Polar Institute
Created: 2021-02-23T13:46:11
Modified: 2021-08-12T10:10:06
History: 2021-02-23T13:46:11Z: Initial read in of the log files. 2021-08-12T10:10:06Z: Standardising PI email and institutions
Event remarks: Samples labeled as AT800
Source document: AeN_MSC1+A-TWAIN_2019710_2019_SampleLog_28112019.xlsx
statID: 345
end_date: 2019-11-19 00:00:00
start_date: 2019-11-19 00:00:00
MSC1 + A-TWAIN
Event ID: e5fb9be6-0ded-11ea-a5f2-000c29fb4a96
Parent Event ID: b3969c99-1011-11ea-a5f2-000c29fb4a96
Event date: 2019-11-19T06:58:00
Station: 345 (2019 Mooring Service/A-Twain)
Location: 81° 32' 56" N , 30° 52' 15" E
Cruise number: 2019710
Cruise name: 2019 Mooring Service/A-Twain
Bottle number: 1
Sampletype: POC/PON
Gear type: CTD w/bottles
Sample depth (m): 891.64
Bottom depth (m): 880.62

Person of Interest

Name: Marit Reigstad
Email: marit.reigstad@uit.no
Institution: University of Tromsø

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MSC1 + A-TWAIN
pi_name: Arild Sundfjord
Abstract
Joint cruise between Nansen Legacy and A-TWAIN/SIOS-InfraNor. Mostly recovery and deployment of moorings, CTD stations and transesects, VM- and L-ADCP transects. Some water sampling for BGC analysis. Glider deployment.

pi_email: arild.sundfjord@npolar.no
projectID: RCN # 276730
pi_address: Fram Centre, 9296 Tromsø, Norway
recordedBy: Arild Sundfjord; Angelika H. H. Renner; Kristine Cerbule; Kristen Fossan; Ceslav Czyz; Øyvind Lundesgaard; Terje Hovland; Marcos Porcires; Kjersti Kalhagen
pi_institution: Norwegian Polar Institute
Created: 2021-02-23T13:46:11
Modified: 2021-08-12T10:10:06
History: 2021-02-23T13:46:11Z: Initial read in of the log files. 2021-08-12T10:10:06Z: Standardising PI email and institutions
Event remarks: Samples labeled as AT800
Source document: AeN_MSC1+A-TWAIN_2019710_2019_SampleLog_28112019.xlsx
statID: 345
end_date: 2019-11-19 00:00:00
start_date: 2019-11-19 00:00:00

NLEG24

Carbonate chemistry, inorganic nutrients and oxygen isotopes in seawater and sea ice
Event ID: f707d64e-e71b-11eb-a4d0-fb7ecc325611
Parent Event ID: 29c59257-e4c6-11eb-ae89-005056a2bfc1
Event date: 2021-07-23T17:06:18
Station: NLEG24
Location: 81° 40' 44" N , 30° 30' 55" E
Cruise number: 2021708
Cruise name: 2021 Joint Cruise 2-1
Bottle number: 7
Sampletype: DO
Sampling protocol: Nansen Legacy sampling protocols version 7
Gear type: CTD w/bottles
Sample depth (m): 899.31
Bottom depth (m): 2,783.55

Person of Interest

Name: Melissa Chierici, Agneta Fransson
Email: melissa.chierici@hi.no, agneta.fransson@npolar.no
Institution: Institute of Marine Research, Norwegian Polar Institute

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Carbonate chemistry, inorganic nutrients and oxygen isotopes in seawater and sea ice
pi_name: Melissa Chierici; Agneta Fransson
Abstract
Overview of samples taken from seawater and sea ice. Following Nansen Sampling protocol V8.

pi_email: melissa.chierici@hi.no; agneta.fransson@npolar.no
projectID: The Nansen Legacy (RCN # 276730)
pi_address: IMR, Tromsø, Norway; NPI, Tromsø, Norway
recordedBy: Helene Lødemel
pi_institution: Institute of Marine Research; Norwegian Polar Institute
Created: 2021-08-13T06:55:51
Modified: 2021-08-27T12:35:20
History: 2021-08-13T06:55:51Z: Initial read in of the log files. 2021-08-27T12:35:20Z: Updating metadata sheet and adding second PI
Source document: AeN_2021708_CTD_Helene_LMedits_CorrectNiskins_metadata.xlsx
statID: 346
end_date: 2021-07-23 00:00:00
end_time: 19:32:58.079000
start_date: 2021-07-23 00:00:00
vesselName: Kronprins Haakon
endDecimalLatitude: 81.6698533333333
endDecimalLongitude: 30.4935723666667
maximumDepthInMeters: 2778
minimumDepthInMeters: 5

P6 (NLEG21/NPAL15)

Q3 Gear casts

Event ID: ef09b2c6-b5ec-11e9-acd1-a0481c9e7d26

Event date: 2019-08-18T06:33:00

Station: P6 (NLEG21/NPAL15)

Location: 81° 32' 58" N , 31° 9' 38" E

Cruise number: 2019706

Cruise name: 2019 Seasonal Study Q3

Gear type: CTD w/bottles

Sample depth (m): 831.00

Bottom depth (m): 834.68

Person of Interest

Name: Marit Reigstad

Email: marit.reigstad@uit.no

Institution: University of Tromsø

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Q3 Gear casts

pi_name: Marit Reigstad

Abstract

The RV Kronprins Haakon cruise Nansen Legacy seasonal Q3 (Q3= 3rd quarter of the year), initiated the seasonal investigation of the northern Barents Sea and adjacent Arctic Basin. This activity is a key milestone for 2019 and 2020. The cruise addressed objectives of the research foci in RF1 on Physical drivers, RF2 on Human drivers and RF3 on the living Barents Sea, and collected necessary data along the Nansen Legacy transect in open waters and within the ice. Experiments were an important component of the research to quantify processes, rates and interactions that will also feed modeling work and projections in RF4. The ongoing establishment of routines for sampling, data management and data storing continued as part of the practical work onboard. The observational capacity was increased also outside the cruise periods, through deployment of 2 gliders for RF1, and 3 moorings in collaboration with RF1/2/3.

pi_email: marit.reigstad@uit.no
projectID: RCN # 276730
pi_address: Institute of Arctic and Marine Biology, Faculty of Biosciences, Fisheries and Economics
recordedBy: Tove M. Gabrielsen
pi_institution: UiT - The Arctic University of Norway

Created: 2020-05-06T13:41:12

Modified: 2021-08-12T10:10:06

History: 2020-05-06T13:41:12Z: Initial read in of the log files. 2021-08-12T10:10:06Z: Standardising PI email and institutions

Event remarks: With LADCP; Model WHS300-I-UG502; SN 24474 & SN 24472

Source document: Q3_GearID_with_metadata.xlsx

statID: 182
dataFilename: Sta0182
serialNumber: See data file for instrument serial numbers. Note change og temperature sensor before cast 192.

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
96951644-c0e6-11e9-8f49-000c29fb4a96	2019-08-18T06:33:00Z	2019706		834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Rolf Gradinger	University of Tromsø
adbca18e-c0e6-11e9-8f49-000c29fb4a96	2019-08-18T06:33:00Z	2019706		834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Rolf Gradinger	University of Tromsø
85ebb475-b5ef-11e9-acd1-a0481c9e7d26	2019-08-18T06:33:00Z	2019706	1	834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Marit Reigstad	University of Tromsø
53a20edc-c0e6-11e9-8f49-000c29fb4a96	2019-08-18T06:33:00Z	2019706		834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Rolf Gradinger	University of Tromsø
95a0e024-c0e6-11e9-8f49-000c29fb4a96	2019-08-18T06:33:00Z	2019706		834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Rolf Gradinger	University of Tromsø
aecf6688-c0e6-11e9-8f49-000c29fb4a96	2019-08-18T06:33:00Z	2019706		834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Rolf Gradinger	University of Tromsø
85ebb487-b5ef-11e9-acd1-a0481c9e7d26	2019-08-18T06:33:00Z	2019706	10	834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Marit Reigstad	University of Tromsø
85ebb485-b5ef-11e9-acd1-a0481c9e7d26	2019-08-18T06:33:00Z	2019706	9	834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Marit Reigstad	University of Tromsø
85ebb483-b5ef-11e9-acd1-a0481c9e7d26	2019-08-18T06:33:00Z	2019706	8	834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Marit Reigstad	University of Tromsø
85ebb481-b5ef-11e9-acd1-a0481c9e7d26	2019-08-18T06:33:00Z	2019706	7	834.68	831.00	P6 (NLEG21/NPAL15)	CTD w/bottles	Marit Reigstad	University of Tromsø

Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 4d2c9450-c0e6-11e9-8f49-000c29fb4a96
Parent Event ID: 85ebb48c-b5ef-11e9-acd1-a0481c9e7d26
Event date: 2019-08-18T06:33:00
Station: P6 (NLEG21/NPAL15)
Location: 81° 32' 58" N , 31° 9' 38" E
Cruise number: 2019706
Cruise name: 2019 Seasonal Study Q3
Bottle number: 24
Sampletype: Isotopes
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 831.00
Bottom depth (m): 834.68

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: SI Natural abundances
Source document: AeN_Q3_Marti_Logsheet.xlsx
statID: 182
intendedMethod: N uptake
sampleVolumeInMilliliters: 1000
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: e7d3c272-c0e5-11e9-8f49-000c29fb4a96
Parent Event ID: 85ebb48c-b5ef-11e9-acd1-a0481c9e7d26
Event date: 2019-08-18T06:33:00
Station: P6 (NLEG21/NPAL15)
Location: 81° 32' 58" N , 31° 9' 38" E
Cruise number: 2019706
Cruise name: 2019 Seasonal Study Q3
Bottle number: 24
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 831.00
Bottom depth (m): 834.68

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: 182
intendedMethod: C14 incubations
sampleVolumeInMilliliters: 0.1
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: e28aaf6a-c0e5-11e9-8f49-000c29fb4a96
Parent Event ID: 85ebb48c-b5ef-11e9-acd1-a0481c9e7d26
Event date: 2019-08-18T06:33:00
Station: P6 (NLEG21/NPAL15)
Location: 81° 32' 58" N , 31° 9' 38" E
Cruise number: 2019706
Cruise name: 2019 Seasonal Study Q3
Bottle number: 24
Sampletype: Primary production (14C-CO2)
Sampling protocol: 7.22
Gear type: CTD w/bottles
Sample depth (m): 831.00
Bottom depth (m): 834.68

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: 182
intendedMethod: C14 incubations
sampleVolumeInMilliliters: 0.1
Seasonality in primary production, Nitrogen sources for primary production and primary producers response to light intensity
Event ID: 841f2c16-c0e6-11e9-8f49-000c29fb4a96
Parent Event ID: 85ebb48c-b5ef-11e9-acd1-a0481c9e7d26
Event date: 2019-08-18T06:33:00
Station: P6 (NLEG21/NPAL15)
Location: 81° 32' 58" N , 31° 9' 38" E
Cruise number: 2019706
Cruise name: 2019 Seasonal Study Q3
Bottle number: 24
Sampletype: Isotopes
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 831.00
Bottom depth (m): 834.68

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: 182
intendedMethod: N uptake
sampleVolumeInMilliliters: 250

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NLEG22

Niskin bottles, JC2-1 Joint Process Cruise

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345 (2019 Mooring Service/A-Twain)

MSC1 + A-TWAIN

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MSC1 + A-TWAIN

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MSC1 + A-TWAIN

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NLEG24

Carbonate chemistry, inorganic nutrients and oxygen isotopes in seawater and sea ice

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P6 (NLEG21/NPAL15)

Q3 Gear casts

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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

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