http://lod.bco-dmo.org/id/dataset/2604
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
2009-09-24
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Nitrogen-15 uptake rates from R/V Atlantis II cruise AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project)
2002-10-30
publication
2002-10-30
revision
BCO-DMO Linked Data URI
2002-10-30
creation
http://lod.bco-dmo.org/id/dataset/2604
James J. McCarthy
Harvard University
principalInvestigator
Dr John Nevins
Harvard 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: McCarthy, J. J., Nevins, J. (2002) Nitrogen-15 uptake rates from R/V Atlantis II cruise AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version final) Version Date 2002-10-30 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/2604 [access date]
Nitrogen-15 uptake rates Dataset Description: <p>Nitrogen-15 uptake rates for labeled substrates of NO2, NO3, NH4 and UREA</p> Methods and Sampling: <pre>
<strong>PI:</strong> James McCarthy and John Nevins
<strong>of:</strong> Harvard University
<strong>dataset:</strong> Nitrogen-15 uptake rates for labeled substrates of NO2,
NO3, NH4 and UREA
<strong>dates:</strong> May 18, 1989 to June 06, 1989
<strong>location:</strong>
<strong>project/cruise:</strong> North Atlantic Bloom Experiment/Atlantis II 119, leg 5
<strong>ship:</strong> R/V Atlantis II
</pre>
<h2>Methodology:</h2>
<p>Summary of methods used to determine new production and N cycling by <img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N incorporation by phytoplankton, and euphotic zone NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ concentrations using a high sensitivity assay during cruise #119 of the R/V Atlantis II: A component of the U.S. JGOFS North Atlantic Bloom Experiment (NABE)</p>
<p><strong>James J. McCarthy and John L. Nevins</strong></p>
<hr />
<p>&nbsp;</p>
<h2><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N Uptake Experiments</h2>
<p>Water from 6 depths in the euphotic zone distributed from 60 - 0.1% Io was obtained from routine "productivity" casts conducted by the Scripps PACODF group deploying a rosette sampler equiped with 30 l Niskin bottles fitted with teflon coated springs. Water for the <img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N experiments was transfered from the Niskin bottles to darkened 20 l polypropylene carboys, transported to a laboratory, and dispensed into 3 l polycarbonate incubation bottles. Three incubation bottles were prepared from each sample depth, and spiked with <img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N-labeled (&gt;98 At%) NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+, NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_3.gif" />-, or NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- (or alternately urea) to ~10% of the ambient concentration, or not less than 10 nM. Ambient nutrient concentrations were provided by C. Garside who deployed a pump profiling system coupled to an auto analyzer in an operation prior to each productivity cast.</p>
<p>Immediately after labeling the samples, they were transfered to deck-board incubator tanks supplied with flowing sea-surface water providing mixed-layer temperature conditions, and screened with neutral density material to simulate the in situ light level. The experiments were incubated for 3-4 hrs and terminated by filtration through Whatman 47 mm GF/F glass fiber filters (precombusted at 450° C for 1 hr) and rinsed with 50 ml of GF/F filtered sea water. The filters were placed into individual polyethylene envelopes, dried at 60° in a gravity drying oven, and stored in an air tight container with silica gel desiccant. On selected samples in each profile, 500 ml of the filtrate was retained for NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ and NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- extraction and subsequent isotopic analysis in order to determine the degree of isotope dilution which occurred during the course of the experiments. The method of Brzezinski (1987) incorporating solid phase extraction proceedures (J.T. Baker, 3 ml, C18 cartridges) was used to extract NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+. In the case of NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />-, reagents were added to the filtrate to form an analine compound (Horrigan et al. 1990) which was then extracted using the solid phase techniques employed for NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+. If necessary, prior to extraction, unenriched carrier NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- or NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ was added to these samples to bring their mass to ~40µg of N for isotopic analysis. The final eluate was collected and stored in sealed 3 ml, combusted, Pyrex glass vials (1 hr @ 450° C). In the laboratory, shortly before isotopic analysis, the eluate was reduced to a volume of ~0.5 ml by evaporation on a hot plate at ~80° C, and transfered by pipette to a combusted Whatman 25 mm GF/F glass fiber filter and dried in a gravity oven at 60° C. With the the isotopic data obtained from the NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- and NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ extraction samples, uptake rates corrected for isotope dilution and NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ remineralization and 1° nitrification rates were calculated (Horrigan et al. 1990).</p>
<p><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N enrichment of the samples was determined by mass spectrometry in our laboratory at Harvard University, using methods and instrumentation described previously (Nevins and McCarthy 1982). Particulate N from each sample was obtained manometrically from the mass spectrometer sample preparation system and these data were used in the subsequent rate calculations. NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ uptake rates were calculated using concentration data obtained from the nM method of Brzezinski (1987), used with solid phase extraction (J.T. Baker, 3 ml, C18 cartridges). Other uptake rates were calculated using data from the ship-board auto analyzer system (C.Garside) obtained from discrete samples from the Niskin bottles.</p>
<p>Because of the strong diel pattern observed in NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_3.gif" />- uptake through out the period of observations, it would be inappropriate to use the discrete rates directly in estimates of new production (eg. an f ratio). We are preparing a manuscript (McCarthy, Nevins and Garside) which will present the results of an analysis which uses these data to model NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_3.gif" />- uptake on an integrated daily basis.</p>
<p>&nbsp;</p>
<p>Literature Cited:</p>
<p>Brzezinski, M.A. 1987.</p>
<p>Colorimetric determination of nanomolar concentrations of ammonium in seawater using solvent extraction. <em>Mar. Chem.</em> 19: 322-330.</p>
<p>Horrigan, S.G., J.P. Montoya, J.L. Nevins, J.J. McCarthy, H.W. Ducklow, R. Goericke and T. Malone. 1990.</p>
<p>Nitrogenous nutrient transformations in the spring and fall in the Chesapeake Bay. <em>Est. Coast. Shelf Sci.</em> 30: 369-391.</p>
<p>Nevins, J.L. and J.J. McCarthy. 1982.</p>
<p><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N tracer studies in marine ecosystems. <em>Nuclide Spectra</em> (Publ. 1041/1082 Nuclide Corp.) 17: 1-2.</p>
Funding provided by National Science Foundation (NSF) Award Number: unknown NABE NSF
completed
James J. McCarthy
Harvard University
USA
jmccarthy@oeb.harvard.edu
pointOfContact
Dr John Nevins
Harvard University
jnevins@oeb.harvard.edu
pointOfContact
asNeeded
Dataset Version: final
Unknown
year
event
sta
cast
bot
depth
pNO2
pNO3
pNH4
pUrea
Niskin Bottle
theme
None, User defined
year
event
station number
cast
bottle number
depth
No BCO-DMO term
featureType
BCO-DMO Standard Parameters
Niskin bottle
instrument
BCO-DMO Standard Instruments
AII-119-5
service
Deployment Activity
U.S. JGOFS North Atlantic
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.
U.S. Joint Global Ocean Flux Study
http://usjgofs.whoi.edu/
U.S. Joint Global Ocean Flux Study
The United States Joint Global Ocean Flux Study was a national component of international JGOFS and an integral part of global climate change research.
The U.S. launched the Joint Global Ocean Flux Study (JGOFS) in the late 1980s to study the ocean carbon cycle. An ambitious goal was set to understand the controls on the concentrations and fluxes of carbon and associated nutrients in the ocean. A new field of ocean biogeochemistry emerged with an emphasis on quality measurements of carbon system parameters and interdisciplinary field studies of the biological, chemical and physical process which control the ocean carbon cycle. As we studied ocean biogeochemistry, we learned that our simple views of carbon uptake and transport were severely limited, and a new "wave" of ocean science was born. U.S. JGOFS has been supported primarily by the U.S. National Science Foundation in collaboration with the National Oceanic and Atmospheric Administration, the National Aeronautics and Space Administration, the Department of Energy and the Office of Naval Research. U.S. JGOFS, ended in 2005 with the conclusion of the Synthesis and Modeling Project (SMP).
U.S. JGOFS
largerWorkCitation
program
U.S. JGOFS North Atlantic Bloom Experiment
http://usjgofs.whoi.edu/research/nabe.html
U.S. JGOFS North Atlantic Bloom Experiment
<p>One of the first major activities of JGOFS was a multinational pilot project, North Atlantic Bloom Experiment (NABE), carried out along longitude 20° West in 1989 through 1991. The United States participated in 1989 only, with the April deployment of two sediment trap arrays at 48° and 34° North. Three process-oriented cruises where conducted, April through July 1989, from R/V <em>Atlantis II</em> and R/V <em>Endeavor</em> focusing on sites at 46° and 59° North. Coordination of the NABE process-study cruises was supported by NSF-OCE award # 8814229. Ancillary sea surface mapping and AXBT profiling data were collected from NASA's P3 aircraft for a series of one day flights, April through June 1989.</p>
<p>A detailed description of NABE and the initial synthesis of the complete program data collection efforts appear in: Topical Studies in Oceanography, JGOFS: The North Atlantic Bloom Experiment (1993), Deep-Sea Research II, Volume 40 No. 1/2.</p>
<p>The U.S. JGOFS Data management office compiled a preliminary NABE data report of U.S. activities: Slagle, R. and G. Heimerdinger, 1991. U.S. Joint Global Ocean Flux Study, North Atlantic Bloom Experiment, Process Study Data Report P-1, April-July 1989. NODC/U.S. JGOFS Data Management Office, Woods Hole Oceanographic Institution, 315 pp. (out of print).</p>
NABE
largerWorkCitation
project
eng; USA
oceans
U.S. JGOFS North Atlantic
2002-10-30
North Atlantic
0
BCO-DMO catalogue of parameters from Nitrogen-15 uptake rates from R/V Atlantis II cruise AII-119-5 in the North Atlantic in 1989 (U.S. JGOFS NABE 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
http://lod.bco-dmo.org/id/dataset-parameter/10935.rdf
Name: year
Units: dimensionless
Description: <p>year (as YYYY)</p>
http://lod.bco-dmo.org/id/dataset-parameter/10936.rdf
Name: event
Units: dimensionless
Description: <p>event number from event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/10937.rdf
Name: sta
Units: dimensionless
Description: <p>station number from event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/10938.rdf
Name: cast
Units: dimensionless
Description: <p>CTD rosette cast number, from event log</p>
http://lod.bco-dmo.org/id/dataset-parameter/10939.rdf
Name: bot
Units: dimensionless
Description: <p>bottle number</p>
http://lod.bco-dmo.org/id/dataset-parameter/10940.rdf
Name: depth
Units: meters
Description: <p>sample depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/10941.rdf
Name: pNO2
Units: nanomolar/hour
Description: <p>N-15 uptake from nitrite labeled substrate</p>
http://lod.bco-dmo.org/id/dataset-parameter/10942.rdf
Name: pNO3
Units: nanomolar/hour
Description: <p>N-15 uptake from nitrate labeled substrate</p>
http://lod.bco-dmo.org/id/dataset-parameter/10943.rdf
Name: pNH4
Units: nanomolar/hour
Description: <p>N-15 uptake from ammonium labeled substrate</p>
http://lod.bco-dmo.org/id/dataset-parameter/10944.rdf
Name: pUrea
Units: nanomolar/hour
Description: <p>N-15 uptake from urea labeled substrate</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
4883
https://datadocs.bco-dmo.org/file/B11vM0NTPNmqG7/N_uptake.csv
N_uptake.csv
Primary data file for dataset ID 2604
download
https://osprey.bco-dmo.org/dataset/2604/data/download
download
onLine
dataset
<pre>
<strong>PI:</strong> James McCarthy and John Nevins
<strong>of:</strong> Harvard University
<strong>dataset:</strong> Nitrogen-15 uptake rates for labeled substrates of NO2,
NO3, NH4 and UREA
<strong>dates:</strong> May 18, 1989 to June 06, 1989
<strong>location:</strong>
<strong>project/cruise:</strong> North Atlantic Bloom Experiment/Atlantis II 119, leg 5
<strong>ship:</strong> R/V Atlantis II
</pre>
<h2>Methodology:</h2>
<p>Summary of methods used to determine new production and N cycling by <img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N incorporation by phytoplankton, and euphotic zone NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ concentrations using a high sensitivity assay during cruise #119 of the R/V Atlantis II: A component of the U.S. JGOFS North Atlantic Bloom Experiment (NABE)</p>
<p><strong>James J. McCarthy and John L. Nevins</strong></p>
<hr />
<p>&nbsp;</p>
<h2><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N Uptake Experiments</h2>
<p>Water from 6 depths in the euphotic zone distributed from 60 - 0.1% Io was obtained from routine "productivity" casts conducted by the Scripps PACODF group deploying a rosette sampler equiped with 30 l Niskin bottles fitted with teflon coated springs. Water for the <img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N experiments was transfered from the Niskin bottles to darkened 20 l polypropylene carboys, transported to a laboratory, and dispensed into 3 l polycarbonate incubation bottles. Three incubation bottles were prepared from each sample depth, and spiked with <img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N-labeled (&gt;98 At%) NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+, NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_3.gif" />-, or NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- (or alternately urea) to ~10% of the ambient concentration, or not less than 10 nM. Ambient nutrient concentrations were provided by C. Garside who deployed a pump profiling system coupled to an auto analyzer in an operation prior to each productivity cast.</p>
<p>Immediately after labeling the samples, they were transfered to deck-board incubator tanks supplied with flowing sea-surface water providing mixed-layer temperature conditions, and screened with neutral density material to simulate the in situ light level. The experiments were incubated for 3-4 hrs and terminated by filtration through Whatman 47 mm GF/F glass fiber filters (precombusted at 450° C for 1 hr) and rinsed with 50 ml of GF/F filtered sea water. The filters were placed into individual polyethylene envelopes, dried at 60° in a gravity drying oven, and stored in an air tight container with silica gel desiccant. On selected samples in each profile, 500 ml of the filtrate was retained for NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ and NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- extraction and subsequent isotopic analysis in order to determine the degree of isotope dilution which occurred during the course of the experiments. The method of Brzezinski (1987) incorporating solid phase extraction proceedures (J.T. Baker, 3 ml, C18 cartridges) was used to extract NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+. In the case of NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />-, reagents were added to the filtrate to form an analine compound (Horrigan et al. 1990) which was then extracted using the solid phase techniques employed for NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+. If necessary, prior to extraction, unenriched carrier NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- or NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ was added to these samples to bring their mass to ~40µg of N for isotopic analysis. The final eluate was collected and stored in sealed 3 ml, combusted, Pyrex glass vials (1 hr @ 450° C). In the laboratory, shortly before isotopic analysis, the eluate was reduced to a volume of ~0.5 ml by evaporation on a hot plate at ~80° C, and transfered by pipette to a combusted Whatman 25 mm GF/F glass fiber filter and dried in a gravity oven at 60° C. With the the isotopic data obtained from the NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_2.gif" />- and NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ extraction samples, uptake rates corrected for isotope dilution and NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ remineralization and 1° nitrification rates were calculated (Horrigan et al. 1990).</p>
<p><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N enrichment of the samples was determined by mass spectrometry in our laboratory at Harvard University, using methods and instrumentation described previously (Nevins and McCarthy 1982). Particulate N from each sample was obtained manometrically from the mass spectrometer sample preparation system and these data were used in the subsequent rate calculations. NH<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_4.gif" />+ uptake rates were calculated using concentration data obtained from the nM method of Brzezinski (1987), used with solid phase extraction (J.T. Baker, 3 ml, C18 cartridges). Other uptake rates were calculated using data from the ship-board auto analyzer system (C.Garside) obtained from discrete samples from the Niskin bottles.</p>
<p>Because of the strong diel pattern observed in NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_3.gif" />- uptake through out the period of observations, it would be inappropriate to use the discrete rates directly in estimates of new production (eg. an f ratio). We are preparing a manuscript (McCarthy, Nevins and Garside) which will present the results of an analysis which uses these data to model NO<img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_3.gif" />- uptake on an integrated daily basis.</p>
<p>&nbsp;</p>
<p>Literature Cited:</p>
<p>Brzezinski, M.A. 1987.</p>
<p>Colorimetric determination of nanomolar concentrations of ammonium in seawater using solvent extraction. <em>Mar. Chem.</em> 19: 322-330.</p>
<p>Horrigan, S.G., J.P. Montoya, J.L. Nevins, J.J. McCarthy, H.W. Ducklow, R. Goericke and T. Malone. 1990.</p>
<p>Nitrogenous nutrient transformations in the spring and fall in the Chesapeake Bay. <em>Est. Coast. Shelf Sci.</em> 30: 369-391.</p>
<p>Nevins, J.L. and J.J. McCarthy. 1982.</p>
<p><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_1.gif" /><img alt="" src="https://datadocs.bco-dmo.org/static/usjgofs.whoi.edu/smallgifs/tiny_5.gif" />N tracer studies in marine ecosystems. <em>Nuclide Spectra</em> (Publ. 1041/1082 Nuclide Corp.) 17: 1-2.</p>
Specified by the Principal Investigator(s)
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
Niskin Bottle
Niskin Bottle
PI Supplied Instrument Name: Niskin Bottle PI Supplied Instrument Description:a rosette sampler equiped with 30 l Niskin bottles fitted with teflon coated springs 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/
Cruise: AII-119-5
AII-119-5
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantis II
vessel
AII-119-5
Hugh W. Ducklow
Virginia Institute of Marine Science
Community Standard Description
International Council for the Exploration of the Sea
R/V Atlantis II
vessel