http://lod.bco-dmo.org/id/dataset/927927
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2024-05-20
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Hydrography, nutrients, and nitrogen uptake rates from SPIROPA cruise TN368 in July 2019
2024-05-20
publication
2024-05-20
revision
BCO-DMO Linked Data URI
2024-05-20
creation
http://lod.bco-dmo.org/id/dataset/927927
Margaret Mulholland
Old Dominion University
principalInvestigator
Phoebe Dreux Chappell
Old Dominion University
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Mulholland, M., Chappell, P. D., Selden, C. (2024) Hydrography, nutrients, and nitrogen uptake rates from SPIROPA cruise TN368 in July 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-05-20 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/927927 [access date]
Hydrography, nutrients, and uptake rates (SPIROPA, July 2019) Dataset Description: <p>This dataset is derived from Selden et al. (2024) JGR Oceans Table S1, and McGillicuddy bottle data from TN368, the third SPIROPA cruise (https://www.bco-dmo.org/dataset/849340). The mean values of nitrogen fixation rates shown here are derived from nitrogen fixation incubation data (https://www.bco-dmo.org/dataset/928568)</p>
<p><strong>Glossary of terms:</strong><br />
A = Atom-% enrichment<br />
APN = Atom-% enrichment of the particulate nitrogen pool&nbsp;<br />
BDL = Below detection limit<br />
DNQ = Detectable but not quantifiable<br />
LOD = Limit of detection<br />
LOQ = Limit of quantification&nbsp;<br />
N2 = Nitrogen gas<br />
PETG = Polyethylene Terephthalate Glycol<br />
PN = Particulate nitrogen<br />
NFR = Nitrogen fixation rate<br />
SUR = Specific uptake rate<br />
t0 = time initial<br />
tf = time final</p> Methods and Sampling: <div class="field" id="form_location">
<p>Nitrogen fixation rates and hydrographic data were measured in July 2019 in&nbsp;conjunction with the SPIROPA (Shelfbreak Productivity Interdisciplinary Research Operation at the Pioneer Array)&nbsp;project cruises (Chief Scientist Dr. Dennis McGillicuddy).&nbsp;This case study was conducted at the Mid-Atlantic Bight shelfbreak front to the south of Massachusetts, USA to examine whether significant N2 fixation occurs in the continental shelf region. On July 5th, 2019, the&nbsp;vessel R/V Thomas G. Thompson (cruise TN368) departed Woods Hole, MA and performed multiple transects in the&nbsp;area of 70 to 71 degrees West longitude and 39 to 40.5 degrees North latitude. Sampling was restricted to waters above the 0.1% light level.&nbsp;</p>
<p>Water was collected in 10L Niskin bottles on a 24-bottle rosette.&nbsp;Vertical conductivity, temperature, and depth profiles were measured&nbsp;concurrently using a Sea-Bird 911+ CTD profiler. Samples to determine nitrate, phosphate, and silicate concentrations were filtered (0.4 um, polycarbonate) directly from the Niskin bottles into acid-washed polyethylene bottles and stored&nbsp;frozen until analysis.&nbsp; Standard&nbsp;colorimetric methods were performed at the Woods Hole Oceanographic Institution's Nutrient Analytical Facility using a SEAL Analytical AA3 HR discrete chemistry analyzer. Detection limits for nitrate, phosphate, and silicate methods were 0.040, 0.030 and 0.009 μM, respectively.</p>
<div>This dataset presents hydrographic and nutrient data plus uptake rates and nitrogen fixation rates based on the mean values of replicate samples at each collection site and depth. For full incubation data (and methods)&nbsp;for all replicates, please refer to BCO-DMO dataset&nbsp;https://www.bco-dmo.org/dataset/928568.</div>
<p>Nitrogen fixation rates (NFR) were measured&nbsp;using the&nbsp;<sup>15</sup>N<sub>2</sub>&nbsp;bubble release method&nbsp;on repeat cross-frontal transects. Bottles were incubated on-deck for approximately 24 hours in incubators that recirculated water through aquaria chillers to maintain approximate temperature conditions for shelf, frontal, and offshore waters. At the end of the incubation period, an aliquot was collected from each bottle for isotope analysis (see&nbsp;https://www.bco-dmo.org/dataset/928568).&nbsp;The remaining incubation volume was then filtered for initial particulate nitrogen (PN) samples.&nbsp;&nbsp;</p>
<p>Specific uptake rates were calculated following Montoya et al. (1996), with equations detailed below.</p>
</div>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1657803 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1657803
onGoing
Margaret Mulholland
Old Dominion University
757-739-0449
Department of Ocean, Earth, and Atmospheric Sciences 4600 Elkhorn Ave.
Norfolk
VA
23529-0276
USA
mmulholl@odu.edu
pointOfContact
Phoebe Dreux Chappell
Old Dominion University
USF St. Petersburg campus 140 7th Ave. South
St. Petersburg
FL
33701
USA
dreux@usf.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
DateTime_EST
Latitude
Longitude
Cruise_ID
Cast
Depth
Salinity
Temperature
SigmaTheta
NO3
PO4
SiO4
PN_mean
PN_sd
Replicate_incubations
Repl_spl_ids
Flag
SUR_mean
SUR_sd
NFR_mean
NFR_sd
NFR_LOD
NFR_LOQ
SUR_LOD
SUR_LOQ
ISO_DateTime_UTC_if_EST
ISO_DateTime_UTC_if_EDT
AquaEuroUSA Aquaria chillers (MC-1/10HP)
Sea-Bird 911 plus CTD
incubator
Europa 20/20 isotope ratio mass spectrometer with automated nitrogen and carbon preparation module
Niskin bottle
SEAL Analytical AA3 HR discrete chemistry analyzer
theme
None, User defined
Date and time
latitude
longitude
Cruise identfier
cast
depth
salinity from CTD
water temperature at measurement depth
sigma-theta
Nitrate
phosphate
Silicate (reactive silica)
number of replicates
sample description
flag
Nitrogen
nitrogen fixation rate
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
Aquarium chiller
CTD Sea-Bird SBE 911plus
Incubator
Isotope-ratio Mass Spectrometer
Niskin bottle
Seal Analytical AutoAnalyser 3HR
instrument
BCO-DMO Standard Instruments
TN368
service
Deployment Activity
New England Shelfbreak
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Collaborative Research: Shelfbreak Frontal Dynamics: Mechanisms of Upwelling, Net Community Production, and Ecological Implications
http://science.whoi.edu/users/olga/SPIROPA/SPIROPA.html
Collaborative Research: Shelfbreak Frontal Dynamics: Mechanisms of Upwelling, Net Community Production, and Ecological Implications
<p>NSF award abstract:</p>
<p>The continental shelf break of the Middle Atlantic Bight supports a productive and diverse ecosystem. Current paradigms suggest that this productivity is driven by several upwelling mechanisms at the shelf break front. This upwelling supplies nutrients that stimulate primary production by phytoplankton, which in turn leads to enhanced production at higher trophic levels. Although local enhancement of phytoplankton biomass has been observed in some circumstances, such a feature is curiously absent from time-averaged measurements, both from satellites and shipboard sampling. Why would there not be a mean enhancement in phytoplankton biomass as a result of the upwelling? One hypothesis is that grazing by zooplankton prevents accumulation of biomass on seasonal and longer time scales, transferring the excess production to higher trophic levels and thereby contributing to the overall productivity of the ecosystem. However, another possibility is that the net impact of these highly intermittent processes is not adequately represented in long-term means of the observations, because of the relatively low resolution of the in-water measurements and the fact that the frontal enhancement can take place below the depth observable by satellite. The deployment of the Ocean Observatories Initiative (OOI) Pioneer Array south of New England has provided a unique opportunity to test these hypotheses. The combination of moored instrumentation and autonomous underwater vehicles will facilitate observations of the frontal system with unprecedented spatial and temporal resolution. This will provide an ideal four-dimensional (space-time) context in which to conduct a detailed study of frontal dynamics and plankton communities needed to examine mechanisms controlling phytoplankton populations in this frontal system. This project will also: (1) promote teaching, training and learning via participation of graduate and undergraduate students in the research , (2) provide a broad dissemination of information by means of outreach in public forums, printed media, and a video documentary of the field work, and (3) contribute to improving societal well-being and increased economic competitiveness by providing the knowledge needed for science-based stewardship of coastal ecosystems, with particular emphasis on connecting with the fishing industry through the Commercial Fisheries Research Foundation.</p>
<p>The investigators will conduct a set of three cruises to obtain cross-shelf sections of physical, chemical, and biological properties within the Pioneer Array. Nutrient distributions will be assayed together with hydrography to detect the signature of frontal upwelling and associated nutrient supply. The investigators expect that enhanced nutrient supply will lead to changes in the phytoplankton assemblage, which will be quantified with conventional flow cytometry, imaging flow cytometry (Imaging FlowCytobot, IFCB), optical imaging (Video Plankton Recorder, VPR), traditional microscopic methods, and pigment analysis. Zooplankton will be measured in size classes ranging from micro- to mesozooplankton with the IFCB and VPR, respectively, and also with microscopic analysis. Biological responses to upwelling will be assessed by measuring rates of primary productivity, zooplankton grazing, and net community production. These observations will be synthesized in the context of a coupled physical-biological model to test the two hypotheses that can potentially explain prior observations: (1) grazer-mediated control and (2) undersampling. Hindcast simulations will also be used to diagnose the relative importance of the various mechanisms of upwelling. The intellectual merit of this effort stems from our interdisciplinary approach, advanced observational techniques, and integrated analysis in the context of a state-of-the-art coupled model. The project will address longstanding questions regarding hydrodynamics and productivity of an important ecosystem, leading to improved understanding of physical-biological interactions in a complex continental shelf regime. Given the importance of frontal systems in the global coastal ocean, it is expected that knowledge gained will have broad applicability beyond the specific region being studied.</p>
SPIROPA
largerWorkCitation
project
eng; USA
oceans
New England Shelfbreak
-71
-70
39
40.5
2019-07-05
2019-07-18
Shelf break south of New England, OOI Pioneer Array
0
BCO-DMO catalogue of parameters from Hydrography, nutrients, and nitrogen uptake rates from SPIROPA cruise TN368 in July 2019
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/929418.rdf
Name: DateTime_EST
Units: unitless
Description: <p>Datetime of sampling in Eastern Standard Time</p>
http://lod.bco-dmo.org/id/dataset-parameter/929419.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/929420.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/929421.rdf
Name: Cruise_ID
Units: unitless
Description: <p>Cruise ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/929422.rdf
Name: Cast
Units: unitless
Description: <p>Cast identifier for cruise TN368 on R/V T.G. Thompson</p>
http://lod.bco-dmo.org/id/dataset-parameter/929423.rdf
Name: Depth
Units: meters (m)
Description: <p>Depth at which sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/929424.rdf
Name: Salinity
Units: psu
Description: <p>Salinity (derived from CTD data)</p>
http://lod.bco-dmo.org/id/dataset-parameter/929425.rdf
Name: Temperature
Units: degrees Celsius (°C)
Description: <p>Temperature in degrees Celsius (derived from CTD data)</p>
http://lod.bco-dmo.org/id/dataset-parameter/929426.rdf
Name: SigmaTheta
Units: kilograms per cubic meter (kg/m3)
Description: <p>Sigma theta potential density at sampling depth (derived from CTD data)</p>
http://lod.bco-dmo.org/id/dataset-parameter/929427.rdf
Name: NO3
Units: micromolar
Description: <p>Nitrate concentration of sample water</p>
http://lod.bco-dmo.org/id/dataset-parameter/929428.rdf
Name: PO4
Units: micromolar
Description: <p>Phosphate concentration of sample water</p>
http://lod.bco-dmo.org/id/dataset-parameter/929429.rdf
Name: SiO4
Units: micromolar
Description: <p>Silicate concentration of sample water</p>
http://lod.bco-dmo.org/id/dataset-parameter/929430.rdf
Name: PN_mean
Units: micromolar
Description: <p>Mean particulate nitrate concentration of sample water</p>
http://lod.bco-dmo.org/id/dataset-parameter/929431.rdf
Name: PN_sd
Units: micromolar
Description: <p>Standard deviation of particulate nitrate concentrations of sample water</p>
http://lod.bco-dmo.org/id/dataset-parameter/929432.rdf
Name: Replicate_incubations
Units: unitless
Description: <p>Number of replicate 15N2 incubations conducted</p>
http://lod.bco-dmo.org/id/dataset-parameter/929433.rdf
Name: Repl_spl_ids
Units: unitless
Description: <p>Sample ID of replicate samples in incubation</p>
http://lod.bco-dmo.org/id/dataset-parameter/929434.rdf
Name: Flag
Units: unitless
Description: <p>Flag for specific uptake rate/nitrogen (N2) fixation rate, where DNQ = Detected but not quantifiable; BDL = Below detection limit</p>
http://lod.bco-dmo.org/id/dataset-parameter/929435.rdf
Name: SUR_mean
Units: per day
Description: <p>Mean specific N2 uptake rate calculated from replicate incubations</p>
http://lod.bco-dmo.org/id/dataset-parameter/929436.rdf
Name: SUR_sd
Units: per day
Description: <p>Standard deviation of specific nitrogen uptake rates</p>
http://lod.bco-dmo.org/id/dataset-parameter/929437.rdf
Name: NFR_mean
Units: nanomoles nitrogen per liter per day (nmol N2/L/day)
Description: <p>Mean nitrogen fixation rate calculated from replicate incubations</p>
http://lod.bco-dmo.org/id/dataset-parameter/929438.rdf
Name: NFR_sd
Units: nanomoles nitrogen per liter per day (nmol N2/L/day)
Description: <p>Standard deviation of nitrogen fixation rates</p>
http://lod.bco-dmo.org/id/dataset-parameter/929439.rdf
Name: NFR_LOD
Units: nanomoles nitrogen per liter per day (nmol N2/L/day)
Description: <p>Limit of detection for nitrogen fixation rate at given sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/929440.rdf
Name: NFR_LOQ
Units: nanomoles nitrogen per liter per day (nmol N2/L/day)
Description: <p>Limit of quantification for nitrogen fixation rate at given sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/929441.rdf
Name: SUR_LOD
Units: per day
Description: <p>Limit of detection for specific nitrogen uptake rate at given sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/929442.rdf
Name: SUR_LOQ
Units: per day
Description: <p>Limit of quantification for specific nitrogen uptake rate at given sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/929443.rdf
Name: ISO_DateTime_UTC_if_EST
Units: unitless
Description: <p>Datetime of sampling in UTC (if original datetimes were EST or GMT-5)</p>
http://lod.bco-dmo.org/id/dataset-parameter/929444.rdf
Name: ISO_DateTime_UTC_if_EDT
Units: unitless
Description: <p>Datetime of sampling in UTC (if original datetimes were actually EDT or GMT-4)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
https://osprey.bco-dmo.org/dataset/927927/data/download
download
onLine
dataset
<div class="field" id="form_location">
<p>Nitrogen fixation rates and hydrographic data were measured in July 2019 in&nbsp;conjunction with the SPIROPA (Shelfbreak Productivity Interdisciplinary Research Operation at the Pioneer Array)&nbsp;project cruises (Chief Scientist Dr. Dennis McGillicuddy).&nbsp;This case study was conducted at the Mid-Atlantic Bight shelfbreak front to the south of Massachusetts, USA to examine whether significant N2 fixation occurs in the continental shelf region. On July 5th, 2019, the&nbsp;vessel R/V Thomas G. Thompson (cruise TN368) departed Woods Hole, MA and performed multiple transects in the&nbsp;area of 70 to 71 degrees West longitude and 39 to 40.5 degrees North latitude. Sampling was restricted to waters above the 0.1% light level.&nbsp;</p>
<p>Water was collected in 10L Niskin bottles on a 24-bottle rosette.&nbsp;Vertical conductivity, temperature, and depth profiles were measured&nbsp;concurrently using a Sea-Bird 911+ CTD profiler. Samples to determine nitrate, phosphate, and silicate concentrations were filtered (0.4 um, polycarbonate) directly from the Niskin bottles into acid-washed polyethylene bottles and stored&nbsp;frozen until analysis.&nbsp; Standard&nbsp;colorimetric methods were performed at the Woods Hole Oceanographic Institution's Nutrient Analytical Facility using a SEAL Analytical AA3 HR discrete chemistry analyzer. Detection limits for nitrate, phosphate, and silicate methods were 0.040, 0.030 and 0.009 μM, respectively.</p>
<div>This dataset presents hydrographic and nutrient data plus uptake rates and nitrogen fixation rates based on the mean values of replicate samples at each collection site and depth. For full incubation data (and methods)&nbsp;for all replicates, please refer to BCO-DMO dataset&nbsp;https://www.bco-dmo.org/dataset/928568.</div>
<p>Nitrogen fixation rates (NFR) were measured&nbsp;using the&nbsp;<sup>15</sup>N<sub>2</sub>&nbsp;bubble release method&nbsp;on repeat cross-frontal transects. Bottles were incubated on-deck for approximately 24 hours in incubators that recirculated water through aquaria chillers to maintain approximate temperature conditions for shelf, frontal, and offshore waters. At the end of the incubation period, an aliquot was collected from each bottle for isotope analysis (see&nbsp;https://www.bco-dmo.org/dataset/928568).&nbsp;The remaining incubation volume was then filtered for initial particulate nitrogen (PN) samples.&nbsp;&nbsp;</p>
<p>Specific uptake rates were calculated following Montoya et al. (1996), with equations detailed below.</p>
</div>
Specified by the Principal Investigator(s)
<p>Specific N<sub>2</sub>&nbsp;uptake rates (SUR) were calculated following Montoya et al. (1996):</p>
<p>Equation 1:&nbsp; &nbsp; &nbsp; &nbsp;SUR = (APN_tf - APN_t0) / (AN2 - APN_t0) ] x (1/time)<br />
<br />
where A represents the atom-% enrichment of the initial (t=0) or final (t=f) particulate nitrogen (PN)&nbsp;pool, or the nitrogen (N<sub>2</sub>) pool. Across all experiments, AN2 averaged 3.89 ± 2.0%. Experiments with &lt;1% enrichment were excluded from downstream analysis. The specific uptake rate represents the relative contribution of diazotroph-derived N to PN turnover within a given sample. Absolute N<sub>2</sub>&nbsp;fixation rates (NFR) were calculated as:</p>
<p>Equation 2:&nbsp; &nbsp; &nbsp; &nbsp;NFR = SUR x [PN]<br />
<br />
where [PN] indicates the particulate nitrogen concentration. Limits of detection and quantification were calculated per incubation by propagating the minimum detectable difference between initial and final&nbsp;<sup>15</sup>N atom-% enrichment of the PN pool (3σ and 10σ), three sigma and ten sigma respectively, n≥7, 12.5 µg N standards measured daily&nbsp;through Eqn. 2 (Ripp, 1996; White et al. 2020). A rate was only considered detectable if two of three replicate incubations yielded detectable rates.</p>
Specified by the Principal Investigator(s)
- Imported data from source file "Selden_JGR24_TableS1.xlsx" into the BCO-DMO data system.
- Changed date format from m/d/yyyy to yyyy-mm-dd (ISO Date 8601 format) and converted datetimes from EST to UTC.
- Converted latitude and longitude to decimal degrees.
- Added official cruise ID corresponding to the the provided deployment and cruise name
- Added cast number and replicate sample ids (from the incubations) based on datetime and depth.
- Rounded values according to the PI’s/submitter’s indicated precision
- Modified parameter (column) names to conform with BCO-DMO naming conventions. The only allowed characters are A-Z,a-z,0-9, and underscores. No spaces, hyphens, commas, parentheses, or Greek letters.
Specified by BCO-DMO Data Managers
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
AquaEuroUSA Aquaria chillers (MC-1/10HP)
AquaEuroUSA Aquaria chillers (MC-1/10HP)
PI Supplied Instrument Name: AquaEuroUSA Aquaria chillers (MC-1/10HP) PI Supplied Instrument Description:To avoid temperature-shocking the samples, three on-deck incubators recirculated water through aquaria chillers (MC-1/10HP, AquaEuroUSA) housed in custom casings. Instrument Name: Aquarium chiller Instrument Short Name:Aquarium chiller Instrument Description: Immersible or in-line liquid cooling device, usually with temperature control.
Sea-Bird 911 plus CTD
Sea-Bird 911 plus CTD
PI Supplied Instrument Name: Sea-Bird 911 plus CTD PI Supplied Instrument Description:Vertical conductivity, temperature, and depth profiles were collected concurrently using a Sea-Bird 911 plus CTD. Instrument Name: CTD Sea-Bird SBE 911plus Instrument Short Name:CTD SBE 911plus Instrument Description: The Sea-Bird SBE 911 plus is a type of CTD instrument package for continuous measurement of conductivity, temperature and pressure. The SBE 911 plus includes the SBE 9plus Underwater Unit and the SBE 11plus Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 plus and SBE 11 plus is called a SBE 911 plus. The SBE 9 plus uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 plus and SBE 4). The SBE 9 plus CTD can be configured with up to eight auxiliary sensors to measure other parameters including dissolved oxygen, pH, turbidity, fluorescence, light (PAR), light transmission, etc.). more information from Sea-Bird Electronics Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0058/
incubator
incubator
PI Supplied Instrument Name: incubator PI Supplied Instrument Description:To avoid temperature-shocking the samples, three on-deck incubators recirculated water through aquaria chillers. Instrument Name: Incubator Instrument Short Name:incubator (general) Instrument Description: A device in which environmental conditions (light, photoperiod, temperature, humidity, etc.) can be controlled.
Note: we have more specific terms for shipboard incubators (https://www.bco-dmo.org/instrument/629001) and in-situ incubators (https://www.bco-dmo.org/instrument/494).
Europa 20/20 isotope ratio mass spectrometer with automated nitrogen and carbon preparation module
Europa 20/20 isotope ratio mass spectrometer with automated nitrogen and carbon preparation module
PI Supplied Instrument Name: Europa 20/20 isotope ratio mass spectrometer with automated nitrogen and carbon preparation module PI Supplied Instrument Description:Initial and final PN isotopic composition and concentration were analyzed on a Europa 20/20 isotope ratio mass spectrometer with an automated N and carbon preparation module. Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Niskin bottle
Niskin bottle
PI Supplied Instrument Name: Niskin bottle PI Supplied Instrument Description:A CTD rosette equipped with 24 10L Niskin bottles was used to sample water in the Mid Atlantic Bight Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
SEAL Analytical AA3 HR discrete chemistry analyzer
SEAL Analytical AA3 HR discrete chemistry analyzer
PI Supplied Instrument Name: SEAL Analytical AA3 HR discrete chemistry analyzer PI Supplied Instrument Description:Samples to determine nitrate, phosphate, and silicate concentrations were filtered (0.4 μm, polycarbonate) directly from Niskin bottles into acid‐washed polyethylene bottles and stored frozen until analysis via standard colorimetric methods at the WHOI Nutrient Analytical Facility using a SEAL Analytical AA3 HR discrete chemistry analyzer. Instrument Name: Seal Analytical AutoAnalyser 3HR Instrument Short Name:Seal Analytical AutoAnalyser 3HR Instrument Description: A fully automated Segmented Flow Analysis (SFA) system, ideal for water and seawater analysis. It comprises a modular system which integrates an autosampler, peristaltic pump, chemistry manifold and detector. The sample and reagents are pumped continuously through the chemistry manifold, and air bubbles are introduced at regular intervals forming reaction segments which are mixed using glass coils. The AA3 uses segmented flow analysis principles to reduce inter-sample dispersion, and can analyse up to 100 samples per hour using stable LED light sources.
Cruise: TN368
TN368
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TN368
Dennis J. McGillicuddy
Woods Hole Oceanographic Institution
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel