http://lod.bco-dmo.org/id/dataset/992821
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
2026-01-22
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Carbon system measurements, methane, nutrients, and sulfate concentrations from water column samples collected on R/V Rachel Carson cruise RC0107 in Clayoquot Sound, Vancouver Island, British Columbia during October 2023
2026-01-22
publication
2026-01-22
revision
Woods Hole Oceanographic Institution (WHOI BCO-DMO)
2026-02-11
publication
https://doi.org/10.26008/1912/bco-dmo.992821.1
Morgan Reed Raven
University of California-Santa Barbara
principalInvestigator
Natalya Evans
University of California-Santa Barbara
principalInvestigator
Aaron Martinez
University of California-Santa Barbara
principalInvestigator
Jacquelyn A. Neibauer
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: Crotteau, M., Raven, M. R., Martinez, A., Evans, N., Karagiannis, M., Fishburn, J., Neibauer, J. A. (2026) Carbon system measurements, methane, nutrients, and sulfate concentrations from water column samples collected on R/V Rachel Carson cruise RC0107 in Clayoquot Sound, Vancouver Island, British Columbia during October 2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-01-22 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.992821.1 [access date]
RC0107 water column data Dataset Description: <p>This dataset is one of three datasets presenting marine biogeochemistry data from four sites in Clayoquot Sound, Vancouver Island, British Columbia from water, sediment, and porewater samples that were collected aboard the R/V Rachel Carson in October 2023. These sites were selected because they represent hotspots of organic carbon burial spanning a range of geochemical conditions. They represent a range of oxic to historically anoxic water columns, and receive organic matter inputs varying from predominantly terrestrial to predominantly marine sources. Together, these datasets provide a framework to evaluate the controls and drivers of organic matter preservation in fjord sediments. See the "Related Datasets" section for the other datasets.</p> Methods and Sampling: <p>Water samples were collected using a CTD with 12-liter (L) Niskin bottles from four sites in Clayoquot Sound, Vancouver Island, British Columbia in October 2023. To sample methane, 60 milliliters (mL) of unfiltered water was added to a 72 mL serum vial containing 2 NaOH pellets, sealed, and refrigerated until analysis. For DIC and pH samples, 0.2 micron (um) filtered water was added to exetainers; samples were refrigerated until analysis. To sample alkalinity, 0.2 micron filtered water was added to a 20 mL serum vial and sealed; samples were refrigerated until analysis. For nutrient samples, 0.2 micron filtered water was added to a falcon tube; samples were frozen at -20 degrees Celsius (°C) until analysis. To sample sulfate, 1 mL of 0.2 micron filtered water was added to a tube containing 100 microliters (uL) of 1 N HCl; sulfate samples were frozen at -20°C until analysis.</p>
<p>Methane was analyzed via GC-FID (Shimadzu GC14A). DIC and δ13C of DIC were analyzed at the UC Davis Stable Isotope Facility. Alkalinity was determined by titration of the sample with 0.03 M HCl (Metrohm 888 Titrando). Nutrients were analyzed by the MSI Analytical Lab at UC Santa Barbara. pH was determined using the dye meta-cresol purple via a UV-Vis spectrophotometer (Genesys 150) (Clayton and Byrne 1993). Sulfate was measured via ion chromatography (Metrohm 930 Compact IC Flex).</p>
<p>Samples analyzed in this study were collected within Ahousaht Territory, on the west coast of Vancouver Island, British Columbia. We respectfully acknowledge the Ahousaht Nation and the Maaqutusiis Hahoulthee Stewardship Society for their stewardship of these lands and for the opportunity to conduct research within their territory.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2143817 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2143817
completed
Morgan Reed Raven
University of California-Santa Barbara
626-644-0273
Santa Barbara
CA
93106-2050
US
raven@ucsb.edu
pointOfContact
Natalya Evans
University of California-Santa Barbara
ncevans@ucsb.edu
pointOfContact
Aaron Martinez
University of California-Santa Barbara
aaronmartinez@ucsb.edu
pointOfContact
Jacquelyn A. Neibauer
University of Washington
jaqui@uw.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
site
latitude
longitude
date
depth
temp
sal
O2
fluor
SO4
DIC
d13C_DIC
pH
Alk
CH4
PO4
SiO4
NO2
NO3
NH3
Metrosep A Supp 5 100/4.0 column and Metrohm 930 Compact IC Flex
Metrohm 888 Titrando
12 L Niskin bottles
Shimadzu GC14A
Genesys 150 UV-Vis Spectrophotometer
theme
None, User defined
site
latitude
longitude
date
depth
water temperature at measurement depth
salinity
dissolved Oxygen
fluorescence
sulfate
dissolved inorganic Carbon
13C to 12C ratio in DIC
pH
total alkalinity (TA)
methane
reactive phosphorus (PO4)
Silicate (reactive silica)
Nitrate
Ammonia
featureType
BCO-DMO Standard Parameters
Ion Chromatograph
Metrohm 888 Titrando pentiometric titrator
Niskin bottle
Shimadzu GC-14 A gas chromatograph
Spectrophotometer
instrument
BCO-DMO Standard Instruments
RC0107
service
Deployment Activity
Clayoquot Sound, Vancouver Island, British Columbia
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.
CAREER: Cryptic sulfur cycling and organic matter preservation in marine oxygen deficient zones
https://osprey.bco-dmo.org/project/920983
CAREER: Cryptic sulfur cycling and organic matter preservation in marine oxygen deficient zones
<p><em><strong>NSF Award Abstract:</strong></em></p>
<p>CAREER: Particle-Hosted Sulfur Cycling and Organic Matter Burial in Oxygen Deficient Zones</p>
<p>Areas of the ocean without dissolved oxygen are called anoxic zones. These environments are increasing due to human activities and climate change. Large amounts of organic carbon are buried in sediments below anoxic zones. However, we do not fully understand why organic carbon is preserved in these zones. This project seeks to understand a newly discovered process that may contribute to carbon preservation in anoxic zones. The process is called organic matter sulfurization. Through this process, organic matter is transformed and effectively 'pickled' by reacting with sulfide. Rapid sulfurization reactions were identified for the first time in sinking marine particles and may have larger effect on carbon burial in sediments than previously thought. This project will be the first to provide measurements of the scale and significance of rapid organic matter sulfurization in modern anoxic zones. This project includes field and laboratory studies. The research will involve a team of students, including a graduate student and six undergraduates, who will be supported through a peer mentorship program. Undergraduate researchers will be recruited from the inaugural class of a newly developed Practical Research Skills course (Earth 101A) at the University of California Santa Barbara. It seeks to help undergraduates develop critical thinking and observational skills that have broad applicability. This project will launch a self-sustaining and vigorous research program in marine biogeochemistry, heavily invested in undergraduate research education, with impacts that will outlast its five-year duration.</p>
<p>The overarching research goal of this project is to assess the contribution of sulfurization reactions to organic carbon preservation in anoxic environments. After constructing and testing a set of customized particle traps, an expedition will be conducted to the marine anoxic zone off the coast of Mexico. Sinking particles, suspended materials, and surface sediments will be collected at three sites on the Mexican shelf and slope, that have generally high local productivity and gradients in bottom-water oxygen concentration. In the field, the rates and isotopic fractionation of microbial sulfate reduction and organic sulfur formation will be measured with stable and radioactive isotope tracers. Subsequently, organic sulfur sources from both natural samples and laboratory experiments will be characterized using mass spectrometry, X-ray absorption spectroscopy, and other geochemical techniques. Together, the results of this work will identify the timing and location of organic matter sulfurization in this environment, which have substantial implications for both modeling marine carbon fluxes and interpreting the geologic record. This study will provide the first quantitative estimates of the scale of organic matter sulfurization in anoxic marine zones, its contribution to sedimentary carbon burial, and its sensitivities to environmental change. Simultaneously, this project will improve the Earth Science undergraduate curriculum at the University of California Santa Barbara through the development of a clear, supportive, and accessible mechanism for including students in research.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
Sulfur in Particles
largerWorkCitation
project
eng; USA
oceans
Clayoquot Sound, Vancouver Island, British Columbia
-125.6963
-125.597
49.16824
49.22652
2023-10-03
2023-10-06
Eastern tropical North Pacific
0
BCO-DMO catalogue of parameters from Carbon system measurements, methane, nutrients, and sulfate concentrations from water column samples collected on R/V Rachel Carson cruise RC0107 in Clayoquot Sound, Vancouver Island, British Columbia during October 2023
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/992843.rdf
Name: site
Units: unitless
Description: <p>Site number (52, 51.5, 47, or 48) where water sample was taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/992844.rdf
Name: latitude
Units: decimal degrees
Description: <p>Latitude of sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/992845.rdf
Name: longitude
Units: decimal degrees
Description: <p>Longitude of sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/992846.rdf
Name: date
Units: unitless
Description: <p>Date sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/992847.rdf
Name: depth
Units: meters
Description: <p>Sampling depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/992848.rdf
Name: temp
Units: degrees Celsius
Description: <p>Temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/992849.rdf
Name: sal
Units: PSU
Description: <p>Salinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/992850.rdf
Name: O2
Units: micromole per kilogram
Description: <p>Concentration of dissolved oxygen</p>
http://lod.bco-dmo.org/id/dataset-parameter/992851.rdf
Name: fluor
Units: milligram per meter cubed
Description: <p>Fluorescence</p>
http://lod.bco-dmo.org/id/dataset-parameter/992852.rdf
Name: SO4
Units: millimolar
Description: <p>Sulfate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/992853.rdf
Name: DIC
Units: millimolar
Description: <p>Concentration of dissolved inorganic carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/992854.rdf
Name: d13C_DIC
Units: per mille
Description: <p>13C to 12C ratio in dissolved inorganic carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/992855.rdf
Name: pH
Units: unitless
Description: <p>pH</p>
http://lod.bco-dmo.org/id/dataset-parameter/992856.rdf
Name: Alk
Units: micromole per kilogram
Description: <p>Alkalinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/992857.rdf
Name: CH4
Units: nanomolar
Description: <p>Methane</p>
http://lod.bco-dmo.org/id/dataset-parameter/992858.rdf
Name: PO4
Units: micromolar
Description: <p>Concentration of phosphate</p>
http://lod.bco-dmo.org/id/dataset-parameter/992859.rdf
Name: SiO4
Units: micromolar
Description: <p>Concentration of silicate</p>
http://lod.bco-dmo.org/id/dataset-parameter/992860.rdf
Name: NO2
Units: micromolar
Description: <p>Concentration of nitrite</p>
http://lod.bco-dmo.org/id/dataset-parameter/992861.rdf
Name: NO3
Units: micromolar
Description: <p>Concentration of nitrate</p>
http://lod.bco-dmo.org/id/dataset-parameter/992862.rdf
Name: NH3
Units: micromolar
Description: <p>Concentration of ammonia</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://doi.org/10.26008/1912/bco-dmo.992821.1
download
onLine
dataset
<p>Water samples were collected using a CTD with 12-liter (L) Niskin bottles from four sites in Clayoquot Sound, Vancouver Island, British Columbia in October 2023. To sample methane, 60 milliliters (mL) of unfiltered water was added to a 72 mL serum vial containing 2 NaOH pellets, sealed, and refrigerated until analysis. For DIC and pH samples, 0.2 micron (um) filtered water was added to exetainers; samples were refrigerated until analysis. To sample alkalinity, 0.2 micron filtered water was added to a 20 mL serum vial and sealed; samples were refrigerated until analysis. For nutrient samples, 0.2 micron filtered water was added to a falcon tube; samples were frozen at -20 degrees Celsius (°C) until analysis. To sample sulfate, 1 mL of 0.2 micron filtered water was added to a tube containing 100 microliters (uL) of 1 N HCl; sulfate samples were frozen at -20°C until analysis.</p>
<p>Methane was analyzed via GC-FID (Shimadzu GC14A). DIC and δ13C of DIC were analyzed at the UC Davis Stable Isotope Facility. Alkalinity was determined by titration of the sample with 0.03 M HCl (Metrohm 888 Titrando). Nutrients were analyzed by the MSI Analytical Lab at UC Santa Barbara. pH was determined using the dye meta-cresol purple via a UV-Vis spectrophotometer (Genesys 150) (Clayton and Byrne 1993). Sulfate was measured via ion chromatography (Metrohm 930 Compact IC Flex).</p>
<p>Samples analyzed in this study were collected within Ahousaht Territory, on the west coast of Vancouver Island, British Columbia. We respectfully acknowledge the Ahousaht Nation and the Maaqutusiis Hahoulthee Stewardship Society for their stewardship of these lands and for the opportunity to conduct research within their territory.</p>
Specified by the Principal Investigator(s)
<p>Sulfate concentrations were calibrated using a sulfate standard curve (0.1 – 100 parts per million (ppm)). Methane concentrations were calibrated using a standard curve (1.446 ppm – 50 ppm). Alkalinity was calibrated using CO2 in Seawater Reference Material (CRM) from Scripps Institution of Oceanography.</p>
<p>Within the dataset, "bdl" = below detection limit. The detection limits (all in micromolar) are:<br />
Phosphate: 0.1<br />
Silicate: 1<br />
Nitrite: 0.1<br />
Nitrate: 0.1<br />
Ammonia: 0.2</p>
Specified by the Principal Investigator(s)
- Imported original file "20251007_FJ_watercolumn.csv" into the BCO-DMO system.
- Removed "nd" from the dataset (missing data are empty/blank in the final csv file).
- Converted the date field to YYYY-MM-DD format.
- Saved the final file as "992821_v1_rc0107_water_column.csv".
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
Metrosep A Supp 5 100/4.0 column and Metrohm 930 Compact IC Flex
Metrosep A Supp 5 100/4.0 column and Metrohm 930 Compact IC Flex
PI Supplied Instrument Name: Metrosep A Supp 5 100/4.0 column and Metrohm 930 Compact IC Flex PI Supplied Instrument Description:Used to measure concentrations of sulfate. Instrument Name: Ion Chromatograph Instrument Short Name:Ion Chromatograph Instrument Description: Ion chromatography is a form of liquid chromatography that measures concentrations of ionic species by separating them based on their interaction with a resin. Ionic species separate differently depending on species type and size. Ion chromatographs are able to measure concentrations of major anions, such as fluoride, chloride, nitrate, nitrite, and sulfate, as well as major cations such as lithium, sodium, ammonium, potassium, calcium, and magnesium in the parts-per-billion (ppb) range. (from http://serc.carleton.edu/microbelife/research_methods/biogeochemical/ic.html)
Metrohm 888 Titrando
Metrohm 888 Titrando
PI Supplied Instrument Name: Metrohm 888 Titrando PI Supplied Instrument Description:Used to measure alkalinity. Instrument Name: Metrohm 888 Titrando pentiometric titrator Instrument Short Name:Metrohm 888 Titrando Instrument Description: A modular pentiometric titrator for dynamic, monotonic and set endpoint titrations. The instrument consists of an intergrated buret, rod or magnetic stirrer and dosing system. Operation is carried out by means of a touch-sensitive display or with high-performance PC software. Temperature is measured by a Pt1000 or NTC. It has a measuring range of -13 to 20 pH, resolution of 0.001 pH and measuring accuracy of +/-0.003 pH.
12 L Niskin bottles
12 L Niskin bottles
PI Supplied Instrument Name: 12 L Niskin bottles PI Supplied Instrument Description:Seawater samples were collected using a 12-bottle rosette with 12 L Niskin bottles. 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/
Shimadzu GC14A
Shimadzu GC14A
PI Supplied Instrument Name: Shimadzu GC14A PI Supplied Instrument Description:Used to measure methane concentrations. Instrument Name: Shimadzu GC-14 A gas chromatograph Instrument Short Name:Shimadzu GC-14A Instrument Description: A fully programmable (time and temperature) gas chromatography system. Multi-linear programming capability using up to a maximum of five staged increments within a time maxima of 655 minutes. Programming and operational control is accomplished via the multifunctional interactive keypad. The keypad also provides for LED display of system parameters, program monitoring, file storage (10 separate file slots) and miscellaneous features. The flow control module includes four ports to accommodate detector gas components (air and hydrogen for Flame Ionization Detection) and carrier/makeup gas. All temperature zones (column oven, injector and detector) are overheat protected.
Genesys 150 UV-Vis Spectrophotometer
Genesys 150 UV-Vis Spectrophotometer
PI Supplied Instrument Name: Genesys 150 UV-Vis Spectrophotometer PI Supplied Instrument Description:Used to measure pH. Instrument Name: Spectrophotometer Instrument Short Name:Spectrophotometer Instrument Description: An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/
Cruise: RC0107
RC0107
R/V Rachel Carson (UW)
Community Standard Description
International Council for the Exploration of the Sea
R/V Rachel Carson (UW)
vessel
RC0107
Morgan Reed Raven
University of Washington
R/V Rachel Carson (UW)
Community Standard Description
International Council for the Exploration of the Sea
R/V Rachel Carson (UW)
vessel