http://lod.bco-dmo.org/id/dataset/908217
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
2023-09-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Porewater geochemistry from sediment pushcores collected by ROV Doc Ricketts from Southern California Seeps in May 2021
2025-08-27
publication
2025-08-27
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-08-27
publication
https://doi.org/10.26008/1912/bco-dmo.908217.1
Shana Goffredi
Occidental College
principalInvestigator
Victoria J. Orphan
California Institute of Technology
principalInvestigator
John S. Magyar
California Institute of Technology
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: Goffredi, S., Orphan, V. J., Magyar, J. S. (2025) Porewater geochemistry from sediment pushcores collected by ROV Doc Ricketts from Southern California Seeps in May 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-08-27 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.908217.1 [access date]
Sediment pushcore porewater geochemistry from southern California seeps May 2021 Dataset Description: Methods and Sampling: <p>Sediment pushcores were collected by a remotely-operated vehicle (ROV Doc Ricketts) from the R/V Western Flyer in May 2021 (cruise ID WF05-21) at the Del Mar Seep (32.9043, -117.7824), Santa Monica Seep Mound 800 (33.7993, -118.6465), Santa Monica Seep Mound 863 (33.7891, -118.6683), and Newport Canyon (33.5450, -117.9251). Pushcores were manually sectioned into 1- or 3-centimeter (cm) horizons using plastic rings, and porewaters were extracted using a KC Denmark squeezer. Samples for ion chromatography were frozen shipboard and thawed immediately prior to analysis. Measurements were made using a Thermo Dual Dionex Integrion HPIC ion chromatography system with either a 250-millimeter (mm) Dionex IonPac AS19-4um column (anions) with 50 mm guard column or a 250 mm Dionex IonPac CS16-4um column (cations) with a 50 mm guard column, in the Resnick Water and Environment Laboratory at the California Institute of Technology (Caltech).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2048666 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2048666
completed
Shana Goffredi
Occidental College
323-259-1470
1600 Campus Road
Los Angeles
CA
90041-3314
USA
sgoffredi@oxy.edu
pointOfContact
Victoria J. Orphan
California Institute of Technology
626-395-1786
109A North Mudd MC 100-23
Pasadena
CA
91125
USA
vorphan@caltech.edu
pointOfContact
John S. Magyar
California Institute of Technology
626-395-6271
116 North Mudd MC 100-23
Pasadena
CA
91125
USA
jmagyar@caltech.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
serial
Fluoride
Acetate
Formate
Chloride
Bromide
Nitrate
Sulfate
Thiosulfate
Phosphate
Lithium
Sodium
Ammonium
Potassium
Magnesium
Calcium
pH
Dive
Lat
Long
Horizon
Date_UTC
Time_UTC
Depth_m
Station
Sample_Name
ISO_DateTime_UTC
Thermo Dual Dionex Integrion HPIC ion chromatography system
pushcores
theme
None, User defined
sample identification
fluoride_ion
acetate
formate
chloride
bromides
Nitrate
sulfate
S2O3
phosphate
Lithium
Sodium cation (Na+)
Ammonium
potassium
Magnesium
calcium (II) cation (Ca2+)
pH
dive_id
latitude
longitude
depth core
date
time of day
depth
station
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
Ion Chromatograph
Push Corer
ROV Doc Ricketts
instrument
BCO-DMO Standard Instruments
WF05-21
service
Deployment Activity
Southern California
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: Redefining the footprint of deep ocean methane seepage for benthic ecosystems
https://osprey.bco-dmo.org/project/840220
Collaborative Research: Redefining the footprint of deep ocean methane seepage for benthic ecosystems
<p><em>NSF Award Abstract:</em><br />
This research examines the role of deep-sea organisms in determining the fate and footprint of methane, a potent greenhouse gas, on Pacific continental margins. The investigators are evaluating the deep ocean methanosphere defined by the microbial communities that consume methane and the animals that directly feed on or form symbioses with methane-consuming microbes. They are also investigating animal communities that gain energy indirectly from methane, as well as those that take advantage of carbonate rocks, the physical manifestation of methane consumption in seafloor sediments. The study of methane seeps in the deep waters of both Alaska (4400-5500 meters) and Southern California (450-1040 meters) is enabling comparisons of the methanosphere under different food-limitation and oxygen regimes. By applying diverse chemical, isotopic, microscopy, and genetic-based analyses to seep microbes and fauna, this study is advancing understanding of the contribution of methane to deep-sea biodiversity and ecosystem function, information that can inform management and conservation actions in US waters. In addition to training for graduate and undergraduate students at their home institutions, the investigators are collaborating with the Alaska Native Science and Engineering Program (ANSEP). They are recruiting Alaskan undergraduates to participate in the research, contributing to ANSEP's online resources that promote interaction between scientists and middle and high school students, and participating in ANSEP's annual residential Career Exploration in Marine Science programs to engage middle school students in learning about deep-sea ecosystems and the variety of career pathways available in marine related fields.</p>
<p>Microbial production and consumption of methane is dynamic and widespread along continental margins, and some animals within deep-sea methane seeps rely on the oxidation and sequestration of methane for nutrition. At the same time, understanding of methane-dependent processes and symbioses in the deep-sea environment is still rudimentary. The goals of this study are to 1) examine the diversity of animals involved in methane-based symbioses and heterotrophic consumption of methane-oxidizing microbes and how these symbioses extend the periphery of seeps, contributing to non-seep, continental slope food webs; and 2) determine whether carbonates on the seep periphery sustain active methanotrophic microbial assemblages, providing a localized food source or chemical fuel for thiotrophic symbioses, via anaerobic oxidation of methane, or free-living, sulfide-oxidizing bacteria consumed by animals. The investigators are addressing these goals by surveying, sampling, and characterizing microbes, water, sediments, carbonates and animals at a deep seep site on the Aleutian Margin and a shallow site off Southern California. Shipboard experiments and laboratory analyses are using molecular, isotopic, geochemical, and radiotracer tools to understand transfer of methane-sourced carbon from aerobic methanotrophs under multiple oxygen levels, pressures, and photosynthetic food inputs. This approach offers a wide lens by which to examine the methane seep footprint, allow reinterpretation of past observations, and identify new scientific areas for future study. Improved characterization of the deep continental margin methanosphere informs climate science, biodiversity conservation, and resource management.</p>
Methanosphere
largerWorkCitation
project
eng; USA
oceans
Southern California
-122.085014
-117.78227
32.904203
36.776723
2021-05-19
2021-05-24
Gulf of Alaska and Southern California Bight
0
BCO-DMO catalogue of parameters from Porewater geochemistry from sediment pushcores collected by ROV Doc Ricketts from Southern California Seeps in May 2021
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/908264.rdf
Name: serial
Units: unitless
Description: <p>Internal Orphan Lab identifier (sample serial number)</p>
http://lod.bco-dmo.org/id/dataset-parameter/908265.rdf
Name: Fluoride
Units: millimolar (mM)
Description: <p>concentration of fluoride ion</p>
http://lod.bco-dmo.org/id/dataset-parameter/908266.rdf
Name: Acetate
Units: millimolar (mM)
Description: <p>concentration of acetate ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908267.rdf
Name: Formate
Units: millimolar (mM)
Description: <p>concentration of formate ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908268.rdf
Name: Chloride
Units: millimolar (mM)
Description: <p>concentration of chloride ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908269.rdf
Name: Bromide
Units: millimolar (mM)
Description: <p>concentration of bromide ion</p>
http://lod.bco-dmo.org/id/dataset-parameter/908270.rdf
Name: Nitrate
Units: millimolar (mM)
Description: <p>concentration of nitrate ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908271.rdf
Name: Sulfate
Units: millimolar (mM)
Description: <p>concentration of sulfate ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908272.rdf
Name: Thiosulfate
Units: millimolar (mM)
Description: <p>concentration of thiosulfate ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908273.rdf
Name: Phosphate
Units: millimolar (mM)
Description: <p>concentration of phosphate ion. ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908274.rdf
Name: Lithium
Units: millimolar (mM)
Description: <p>concentration of lithium ion (Li+). ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908275.rdf
Name: Sodium
Units: millimolar (mM)
Description: <p>concentration of sodium ion (Na+)</p>
http://lod.bco-dmo.org/id/dataset-parameter/908276.rdf
Name: Ammonium
Units: millimolar (mM)
Description: <p>concentration of ammonium ion (NH4+). ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908277.rdf
Name: Potassium
Units: millimolar (mM)
Description: <p>concentration of potassium ion (K+)</p>
http://lod.bco-dmo.org/id/dataset-parameter/908278.rdf
Name: Magnesium
Units: millimolar (mM)
Description: <p>concentration of magnesium ion (Mg2+)</p>
http://lod.bco-dmo.org/id/dataset-parameter/908279.rdf
Name: Calcium
Units: millimolar (mM)
Description: <p>concentration of calcium ion (Ca2+). ND = below level of quantification; NOT_MEASURED = this ion was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908280.rdf
Name: pH
Units: unitless
Description: <p>pH value, measured shipboard. ND = below level of quantification; NOT_MEASURED = was not measured for this sample.</p>
http://lod.bco-dmo.org/id/dataset-parameter/908281.rdf
Name: Dive
Units: unitless
Description: <p>Dive number of the ROV Doc Ricketts</p>
http://lod.bco-dmo.org/id/dataset-parameter/908282.rdf
Name: Lat
Units: decimal degrees
Description: <p>Latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/908283.rdf
Name: Long
Units: decimal degrees
Description: <p>Longitude, with west longitude negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/908284.rdf
Name: Horizon
Units: cenimeters (cm)
Description: <p>depth (cm) in sediment, measured from top of core</p>
http://lod.bco-dmo.org/id/dataset-parameter/908285.rdf
Name: Date_UTC
Units: unitless
Description: <p>core collection date (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/908286.rdf
Name: Time_UTC
Units: unitless
Description: <p>core collection time (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/908287.rdf
Name: Depth_m
Units: meters (m)
Description: <p>ocean depth in meters at the sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/908288.rdf
Name: Station
Units: unitless
Description: <p>name of the sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/908289.rdf
Name: Sample_Name
Units: unitless
Description: <p>the sample name, which is composed of the dive number and the ROV pushcore number</p>
http://lod.bco-dmo.org/id/dataset-parameter/908290.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>core collection date and time (UTC) in ISO 8601 format</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
46720
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/916eeeab-0561-4e6e-b114-3b2b7b4b6aee/content
download
https://doi.org/10.26008/1912/bco-dmo.908217.1
download
onLine
dataset
<p>Sediment pushcores were collected by a remotely-operated vehicle (ROV Doc Ricketts) from the R/V Western Flyer in May 2021 (cruise ID WF05-21) at the Del Mar Seep (32.9043, -117.7824), Santa Monica Seep Mound 800 (33.7993, -118.6465), Santa Monica Seep Mound 863 (33.7891, -118.6683), and Newport Canyon (33.5450, -117.9251). Pushcores were manually sectioned into 1- or 3-centimeter (cm) horizons using plastic rings, and porewaters were extracted using a KC Denmark squeezer. Samples for ion chromatography were frozen shipboard and thawed immediately prior to analysis. Measurements were made using a Thermo Dual Dionex Integrion HPIC ion chromatography system with either a 250-millimeter (mm) Dionex IonPac AS19-4um column (anions) with 50 mm guard column or a 250 mm Dionex IonPac CS16-4um column (cations) with a 50 mm guard column, in the Resnick Water and Environment Laboratory at the California Institute of Technology (Caltech).</p>
Specified by the Principal Investigator(s)
<p>100 microliter (uL) samples were diluted 50x in milliQ nanopure water before running. Standard curves were generated using calibration standards diluted similarly to samples, with 100 uL of 500 millimolar (mM) NaCl added to mimic typical seawater sample peak behavior. Analyte peaks were integrated and values were calculated using the standards automatically in the Chromeleon software, with manual QC to ensure regular peak shapes.</p>
<p><strong>Known issues or problems:</strong><br />
Na and Cl are not quantitative, as the standards have an excess of each spiked in, above the upper limit of quantification. Formate values reported as 'ND' indicate they are below the LoQ but not LoD. Ca elutes near the end of the run, and occasionally is not captured in its entirety.</p>
Specified by the Principal Investigator(s)
- Converted original file "20230630_WF05-21_ions_for_NSF_corrected080825.xlsx" to CSV format.
- Imported file "20230630_WF05-21_ions_for_NSF_corrected080825.csv" into the BCO-DMO processing system.
- Flagged 'ND', 'NA', and 'NOT_MEASURED' as missing data identifiers but retained in the dataset.
- Converted date to YYYY-MM-DD format.
- Saved the final file as "908217_v1_porewater_biogeochem.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
Thermo Dual Dionex Integrion HPIC ion chromatography system
Thermo Dual Dionex Integrion HPIC ion chromatography system
PI Supplied Instrument Name: Thermo Dual Dionex Integrion HPIC ion chromatography system PI Supplied Instrument Description:Thermo Dual Dionex Integrion HPIC ion chromatography system with either a 250 mm Dionex IonPac AS19-4um column (anions) with 50 mm guard column or a 250 mm Dionex IonPac CS16-4um column (cations) with a 50 mm guard column, in the Resnick Water and Environment Laboratory at the California Institute of Technology (Caltech). 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)
pushcores
pushcores
PI Supplied Instrument Name: pushcores PI Supplied Instrument Description:Sediment pushcores were collected by ROV. Instrument Name: Push Corer Instrument Short Name: Instrument Description: Capable of being performed in numerous environments, push coring is just as it sounds. Push coring is simply pushing the core barrel (often an aluminum or polycarbonate tube) into the sediment by hand. A push core is useful in that it causes very little disturbance to the more delicate upper layers of a sub-aqueous sediment.
Description obtained from: http://web.whoi.edu/coastal-group/about/how-we-work/field-methods/coring/
PI Supplied Instrument Name: PI Supplied Instrument Description:ROV Doc Ricketts is operated by the Monterey Bay Aquarium Research Institute (MBARI). ROV Doc Ricketts is capable of diving to 4000 meters (about 2.5 miles). The R/V Western Flyer was the support vessel for Doc Ricketts and was designed with a center well whose floor can be opened to allow Doc Ricketts to be launched from within the ship into the water below. For a complete description see: https://www.mbari.org/technology/rov-doc-ricketts/ Instrument Name: ROV Doc Ricketts Instrument Short Name:Doc Ricketts Instrument Description: The remotely operated vehicle (ROV) Doc Ricketts is operated by the Monterey Bay Aquarium Research Institute (MBARI). ROV Doc Ricketts is capable of diving to 4000 meters (about 2.5 miles). The R/V Western Flyer is the support vessel for Doc Ricketts and was designed with a center well whose floor can be opened to allow Doc Ricketts to be launched from within the ship into the water below. For a complete description, see: https://www.mbari.org/at-sea/vehicles/remotely-operated-vehicles/rov-doc-ricketts/
Cruise: WF05-21
WF05-21
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel
WF05-21
Shana Goffredi
Occidental College
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel