http://lod.bco-dmo.org/id/dataset/948746
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
2025-01-17
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Suspended Organic Particle concentration and stable C and N isotopes (collected with McClane Pumps and GF/F filters) from the Eastern Tropical North Pacific on the R/V Thompson cruise TN278 in April 2012
2025-01-17
publication
2025-01-17
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-02-06
publication
https://doi.org/10.26008/1912/bco-dmo.948746.1
Richard Keil
University of Washington
principalInvestigator
Clara Fuchsman
University of Washington
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: Keil, R., Fuchsman, C., Duffy, M. E., Neibauer, J. A. (2025) Suspended Organic Particle concentration and stable C and N isotopes (collected with McClane Pumps and GF/F filters) from the Eastern Tropical North Pacific on the R/V Thompson cruise TN278 in April 2012. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-01-17 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.948746.1 [access date]
Methods and Sampling: <p>&nbsp;Suspended organic carbon and nitrogen concentrations and stable isotopes were obtained on the R/V Thompson cruise TN278 at St P2 (16.53 N 107.15 W; known as BB2 on this cruise)&nbsp;and at St P1 (20.1 N 106.0 W; known as BB1 on this cruise)&nbsp;in the Eastern Tropical North Pacific Oxygen Deficient Zone in April 2012. Water was filtered onto 142 mm pre-combusted GF/F filters <em>in situ</em> using McClane pumps (on average ~300-500 L) in a depth profile. Two 21 mm diameter punches from a size 12 core bore punch were obtained from each 142 mm filter and used for organic matter analysis. Sample punches were wafted with HCl overnight to remove carbonate, dried at 40°C, packed into silver capsules, and sent to the UC Davis Stable Isotope Facility (Davis, CA) for C and N analysis&nbsp;utilizing an elemental analyzer (Elementar Vario EL Cube) attached to an isotope ratio mass spectrometer (Isoprim VisION). Blank combusted GF/F filters were included in analyses and did not show measurable material.&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1636332 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1636332
completed
Richard Keil
University of Washington
206-685-9994
School of Oceanography Box 355351
Seattle
WA
98195
USA
keil@u.washington.edu
pointOfContact
Clara Fuchsman
University of Washington
P. O. Box 775 2020 Horns Point Rd
Cambridge
MD
21613
USA
cfuchsman@umces.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Sample
St
latitude
longitude
Date
Depth
Nitrogen
Carbon
d15N_Air
d13C_VPDB
C_to_N
Isoprim VisION
theme
None, User defined
sample identification
station
latitude
longitude
date
depth
Nitrogen
Elemental carbon (C)
d15N
d13C
Carbon to Nitrogen ratio (C:N)
featureType
BCO-DMO Standard Parameters
Elementar Vario EL Cube elemental analyzer
Isotope-ratio Mass Spectrometer
instrument
BCO-DMO Standard Instruments
TN278
service
Deployment Activity
Eastern Tropical North Pacific Oxygen Deficient Zone
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.
The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones
https://osprey.bco-dmo.org/project/746076
The role of cryptic nutrient cycling within sinking particles on trace element transport in oxygen minimum zones
<p><em>NSF Award Abstract:</em><br />
The major process controlling the internal cycling of biologically active trace metals in the oceans is through uptake onto and remineralization from sinking particles. Uptake can occur through active biological uptake into living cells as micronutrients, or chemical adsorption onto sinking materials. This latter process is often referred to as scavenging. The relative importance of these processes is often unclear, especially for elements that are both biologically active and also "particle reactive." The latter characteristic is associated with sparing solubility in seawater and the formation of strong complexes with surface sites, with examples such as iron. Recent evidence suggests that the simplistic view of a sinking particle as a passive surface for metal complexation may require some revision. Investigators James Moffett and Seth John propose to study the chemistry of transition metals within large sinking particles and the resultant effects on metal biogeochemical cycling. They will collaborate with a group at the University of Washington, recently funded to study the microbiology and molecular biology of these particles. The central hypothesis of this project is that reducing microbial microenvironments within large particles support high rates of nitrogen and sulfur cycling, greatly enhancing the particles' influence on metal chemistry. The investigators will study these processes in the Eastern Tropical North Pacific Oxygen Minimum Zone (OMZ). This regime was selected because of the wide range of redox conditions in the water column, and strong preliminary evidence that microenvironments within sinking particles have major biogeochemical impacts.</p>
<p>
The primary objective is to investigate the interactions of metals with particles containing microenvironments that are more highly reducing than the surrounding waters. Such microenvironments arise when the prevailing terminal electron acceptor (oxygen, or nitrate in oxygen minimum zones) becomes depleted and alternative terminal electron acceptors are utilized. Within reducing microenvironments metal redox state and coordination chemistry are different from the bulk water column, and these microenvironments may dominate metal particle interactions. For example, reduction of sulfate to sulfide could bind metals that form strong sulfide complexes, such as cadmium and zinc, processes previously thought to be confined to sulfidic environments. Reducing microenvironments may account for the production of reduced species such as iron(II), even when their formation is thermodynamically unfavorable in the bulk water column. Tasks include observational characterization of dissolved and particulate trace metals and stable isotopes in the study area, sampling and in situ manipulation of particles using large-dimension sediment traps, shipboard experimental incubations under a range of redox conditions, and modeling, providing insight from microscopic to global scales. The metal chemistry data will be interpreted within a rich context of complimentary data including rates of nitrogen and sulfur cycling, phylogenetics and proteomic characterization of the concentration of key enzymes. Broader impacts include training of a postdoctoral scientist, international collaborations with Mexican scientists, and involvement of undergraduate students in the research.</p>
OMZ Nutrient Cycling
largerWorkCitation
project
eng; USA
oceans
Eastern Tropical North Pacific Oxygen Deficient Zone
-107.17
-105.99
16.51
20.19
2012-03-30
2012-04-11
Eastern Tropical North Pacific
0
BCO-DMO catalogue of parameters from Suspended Organic Particle concentration and stable C and N isotopes (collected with McClane Pumps and GF/F filters) from the Eastern Tropical North Pacific on the R/V Thompson cruise TN278 in April 2012
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/950194.rdf
Name: Sample
Units: unitless
Description: <p>sample name</p>
http://lod.bco-dmo.org/id/dataset-parameter/950195.rdf
Name: St
Units: unitless
Description: <p>station sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/950196.rdf
Name: latitude
Units: decimal degrees
Description: <p>location sampled (latitude)</p>
http://lod.bco-dmo.org/id/dataset-parameter/950197.rdf
Name: longitude
Units: decimal degrees
Description: <p>location sampled (longitude)</p>
http://lod.bco-dmo.org/id/dataset-parameter/950198.rdf
Name: Date
Units: unitless
Description: <p>date sampled (ISO 8601 format)</p>
http://lod.bco-dmo.org/id/dataset-parameter/950199.rdf
Name: Depth
Units: meters (m)
Description: <p>depth sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/950200.rdf
Name: Nitrogen
Units: micromolar (uM)
Description: <p>concentration of organic N. Detection limit for N is 5 ug</p>
http://lod.bco-dmo.org/id/dataset-parameter/950201.rdf
Name: Carbon
Units: micromolar (uM)
Description: <p>concentration of organic C. Detection limit for C is 30 ug.</p>
http://lod.bco-dmo.org/id/dataset-parameter/950202.rdf
Name: d15N_Air
Units: permil (0/00)
Description: <p>isotopic composition of N (d15N with respect to reference standard air).</p>
http://lod.bco-dmo.org/id/dataset-parameter/950203.rdf
Name: d13C_VPDB
Units: permil (0/00)
Description: <p>isotopic composition of C (d13C). Reference standard VPDB="Vienna Pee Dee Belemnite"</p>
http://lod.bco-dmo.org/id/dataset-parameter/950204.rdf
Name: C_to_N
Units: unitless
Description: <p>ratio of molar carbon to nitrogen concentrations (C:N)</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
3088
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/08edea8d-c8f4-4c85-9a1f-f0ba84ebca21/content
download
https://doi.org/10.26008/1912/bco-dmo.948746.1
download
onLine
dataset
<p>&nbsp;Suspended organic carbon and nitrogen concentrations and stable isotopes were obtained on the R/V Thompson cruise TN278 at St P2 (16.53 N 107.15 W; known as BB2 on this cruise)&nbsp;and at St P1 (20.1 N 106.0 W; known as BB1 on this cruise)&nbsp;in the Eastern Tropical North Pacific Oxygen Deficient Zone in April 2012. Water was filtered onto 142 mm pre-combusted GF/F filters <em>in situ</em> using McClane pumps (on average ~300-500 L) in a depth profile. Two 21 mm diameter punches from a size 12 core bore punch were obtained from each 142 mm filter and used for organic matter analysis. Sample punches were wafted with HCl overnight to remove carbonate, dried at 40°C, packed into silver capsules, and sent to the UC Davis Stable Isotope Facility (Davis, CA) for C and N analysis&nbsp;utilizing an elemental analyzer (Elementar Vario EL Cube) attached to an isotope ratio mass spectrometer (Isoprim VisION). Blank combusted GF/F filters were included in analyses and did not show measurable material.&nbsp;</p>
Specified by the Principal Investigator(s)
<p>Data were processed in Microsoft Excel. In particularly, ug C and N were converted to concentrations using volume filtered.&nbsp;</p>
Specified by the Principal Investigator(s)
* Sheet 1 of submitted file "ETNP_2012_POM.xlsx" was imported into the BCO-DMO data system. Table will appear as Data File: 948746_v1_etnp-2012-mcclane-pump-pom.csv (along with other download format options).
** In the BCO-DMO data system missing data identifiers are displayed according to the format of data you access. For example, in csv files it will be blank (null) values. In Matlab .mat files it will be NaN values. When viewing data online at BCO-DMO, the missing value will be shown as blank (null) values.
* Completely blank rows removed within table.
* Date converted to ISO 8601 format
* lon values changed to negative (decimal degrees (south and west are negative))
* Supplemental reference table was attached without format changes.
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
PI Supplied Instrument Name: PI Supplied Instrument Description:UC Davis Stable Isotope Facility (Davis, CA) analysed for C and N utilizing an elemental analyzer (Elementar Vario EL Cube) attached to an isotope ratio mass spectrometer (Isoprim VisION). Instrument Name: Elementar Vario EL Cube elemental analyzer Instrument Short Name:Vario EL Cube Instrument Description: A laboratory instrument used for quantifying organic elements. It can measure C, H, N and S and optionally O, Cl and TIC. It was first developed in 2006 as a successor to the vario EL III. It uses a high-temperature combustion unit that is able to complete sample digestion at up to 1200 deg C (or 1800 deg C at the point of combustion when tin foil is used) and a jet injection of oxygen directly to the sample during combustion. Separation of gas components are performed on up to 3 gas-selective columns which trap gases until they are heated up and the prior gas peak has reached the baseline during detection. It uses a Thermal Conductivity Detector (TCD) as standard. An infrared (IR) detector for sulfur and oxygen and electrochemical detector for chlorine are optionally available. The instrument can measure C / N elemental ratios of up to 12,000:1 and provides an elemental detection limit of < 40 ppm (TCD).
Isoprim VisION
Isoprim VisION
PI Supplied Instrument Name: Isoprim VisION PI Supplied Instrument Description:UC Davis Stable Isotope Facility (Davis, CA) analysed for C and N utilizing an elemental analyzer (Elementar Vario EL Cube) attached to an isotope ratio mass spectrometer (Isoprim VisION). 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/
Cruise: TN278
TN278
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel
TN278
Allan Devol
University of Washington
R/V Thomas G. Thompson
Community Standard Description
International Council for the Exploration of the Sea
R/V Thomas G. Thompson
vessel