Mesozooplankton & small mesozooplankton motrality/activity, biomass, metabarcoding, taxonomy community fatty acid
pi_name: Janne Søreide (biomass); Kim Præbel (metabarcoding)
Abstract
Provide information about seasonal, annual and regional variations in biomass and genetic composition of the mesozooplankton fraction along a latitudinal environmental gradient in the Barents Sea from South to North. The samples were collected using Bongonets of both 180 um (mesozooplankton) & 64 um (small mesozooplankton) from the bottom to the surface. When the bottom depth was deeper than 1000 m (P6 & P7). Samples were taken from 1000-0m.
pi_email: janne.soreide@unis.no; kim.praebel@uit.no projectID: The Nansen Legacy (RCN # 276730) pi_address: Forskningsparken, 8171 Longyearbyen; Norges Fiskerihøgskole – UIT recordedBy: Elisabeth Halvorsen; Amalia Keck Al-Habahbeh pi_institution: UNIS; UIT
Created: 2021-05-26T10:51:08
Modified: 2021-08-12T08:50:11
History: 2021-05-26T10:51:08Z: Initial read in of the log files.
2021-05-31T09:30:17Z: Updating station names
2021-08-12T08:50:11Z: Standardising PI email and institutions
Sampling protocol: Nansen Legacy samplig protocols version 8 section 10.4.21
Gear type: Bongonet 64 um
Sample depth (m): 320.00
Bottom depth (m): 337.52
Person of Interest
Name: Anna Vader
Email: annav@unis.no
Institution: University Centre in Svalbard
Show more metadata
Mesozooplankton and sediment meiofauna for dietary metabarcoding
pi_name: Anna Vader
Abstract
Mesozooplankton samples are divided in two groups: mesozooplankton 1) fixed immediately in ethanol (96%), and 2) fixed in ethanol (96%) after a 48 h gut evacuation step. Sampling gear and details: Bongo 64 um nets from bottom - 0 m, OR 1000 - 0 m at deep stations. Sediment is sampled from box corer at stations where boxcoring is possible. At each station three samples are taken, two with a spoon and one with a cut syringe. All samples are filled with ethanol (96%) and put in the -20C freezer for storage untill laboratory analyses back at UNIS.
pi_email: annav@unis.no projectID: The Nansen Legacy (RCN # 276730) pi_address: PO box 156, 9170 Longyearbyen recordedBy: Snorre Flo pi_institution: UNIS
Created: 2021-05-26T10:06:31
Modified: 2021-08-12T08:38:02
History: 2021-05-26T10:06:31Z: Initial read in of the log files.
2021-05-31T09:30:03Z: Updating station names
2021-08-12T08:38:02Z: Standardising PI email and institutions
History: 2021-05-26T12:11:49Z: Initial read in of the log files.
2021-05-31T09:30:50Z: Updating station names
2021-08-12T10:23:31Z: Standardising PI email and institutions
2021-11-04T13:14:08Z: Retrieving sampledepthinmeters from .btl files
2022-10-25T06:46:01Z: Retrieving sampledepthinmeters from .btl files
Sediment samples for analysis of macrofaunal diversity were taken from multiple (n=12) 11.7 cm cores inserted in the box cores. These cores were first used for sediment community oxygen respiration and then sieved completely for macrofaunal diversity and abundance estimates. This work is part of RF3 of the Nansen Legacy project, cruise SS Q2, April 2021.
pi_email: henning.reiss@nord.no; per@akvaplan.niva.no projectID: The Nansen Legacy (RCN # 276730) pi_address: Bodø; Tromsø recordedBy: Arunima Sen pi_institution: Nord University; Akvaplan-Niva
Created: 2021-05-26T10:51:11
Modified: 2021-08-12T12:28:43
History: 2021-05-26T10:51:11Z: Initial read in of the log files.
2021-05-31T09:30:20Z: Updating station names
2021-08-12T12:28:43Z: Standardising PI email and institutions
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: 2021-05-26T10:51:28
Modified: 2021-08-12T12:31:54
History: 2021-05-26T10:51:28Z: Initial read in of the log files.
2021-05-31T09:30:26Z: Updating station names
2021-08-12T12:31:54Z: Standardising PI email and institutions
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: 2021-05-26T10:51:28
Modified: 2021-08-12T12:31:54
History: 2021-05-26T10:51:28Z: Initial read in of the log files.
2021-05-31T09:30:26Z: Updating station names
2021-08-12T12:31:54Z: Standardising PI email and institutions
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: 2021-05-26T10:51:28
Modified: 2021-08-12T12:31:54
History: 2021-05-26T10:51:28Z: Initial read in of the log files.
2021-05-31T09:30:26Z: Updating station names
2021-08-12T12:31:54Z: Standardising PI email and institutions
Sampling protocol: N uptake to be included in version 5
Gear type: CTD w/bottles
Sample depth (m): 20.08
Bottom depth (m): 335.80
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: 2021-05-26T10:51:28
Modified: 2021-08-12T12:31:54
History: 2021-05-26T10:51:28Z: Initial read in of the log files.
2021-05-31T09:30:26Z: Updating station names
2021-08-12T12:31:54Z: Standardising PI email and institutions
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: 2021-05-26T10:51:28
Modified: 2021-08-12T12:31:54
History: 2021-05-26T10:51:28Z: Initial read in of the log files.
2021-05-31T09:30:26Z: Updating station names
2021-08-12T12:31:54Z: Standardising PI email and institutions
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: 2021-05-26T10:51:28
Modified: 2021-08-12T12:31:54
History: 2021-05-26T10:51:28Z: Initial read in of the log files.
2021-05-31T09:30:26Z: Updating station names
2021-08-12T12:31:54Z: Standardising PI email and institutions
