http://lod.bco-dmo.org/id/dataset/818773
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
2020-07-16
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
DIC, TA, calculated pH and carbonate saturation state in the summer bottom water in North Gulf of Mexico from 2006 to 2017
2020-07-16
publication
2020-07-16
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2020-09-14
publication
https://doi.org/10.26008/1912/bco-dmo.818773.1
Wei-Jun Cai
University of Delaware
principalInvestigator
Nancy Rabalais
Louisiana State 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: Cai, W., Rabalais, N. (2020) DIC, TA, calculated pH and carbonate saturation state in the summer bottom water in North Gulf of Mexico from 2006 to 2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-07-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.818773.1 [access date]
Bottom water measurements from the North Gulf of Mexico. Dataset Description: Methods and Sampling: <p>DIC and TA</p>
<p>Measure of DIC using NDIR method and of TA using Gran titration. DIC and TA were measured using the instruments from Apollo Scitech Inc. Briefly, for DIC analysis, samples were analyzed at room temperatures. Each seawater sample (0.5 mL) was acidified using phosphoric acid and the evolved CO2 gas was extracted and carried by pure N2 gas to an infrared CO2 detector (Li-Cor 6262) for quantification. TA&nbsp;was determined on 25 mL seawater sample by potentiometric titration, using 0.1 M hydrochloric acid and an open-cell titration system. All TA samples were analyzed in pre-thermostated (25 °C) glass cells. For each DIC or TA sample, sub-samples were sequentially analyzed 2 or 3 times until we obtained two replicates with a precision within 0.1%. The average of the two values is reported. The precision of both the TA and DIC measurements was +/- 2 umol/kg. The accuracies of the TA and DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography.</p>
<p>pH_elec</p>
<p>pH samples were drawn in 60 ml glass bottles and temperature equilibrated at 25 oC. An Orion Combination electrode connected to a pH meter (Orion Star A211) was used to measure the potential (EMF, mV) generated by the H+ ions. EMF was calibrated using three NBS buffer solutions at pH 4.01, 7.0, and 10.01 purchased from Fisher Scientific. Probe was kept immersed in the sample until the EMF stabilized. Two EMF readings at a difference of 1 minute were obtained for each sample and average value used with calibration to calculate the pH. Precision on pH is estimated from the standard deviation of the mean of two EMF readings. Samples where such deviation exceeded 0.16% of the mean EMF are flagged.</p>
<p>pH_spec</p>
<p>Discrete sample pH_spec was measured spectrophotometrically at 25 degrees Celsius on the total pH scale using purified M-Cresol Purple purchased from R. Byrne at the University of South Florida [Clayton and Byrne, 1993; Liu et al., 2011]. The spectrophotometric pH (25 oC, total scale) was calculated from the ratio of the measured absorbances of mCP at wavelengths l2 = 578 nm and l1 = 434 nm following the dissociation constants proposed by Liu et al 2011].</p>
<p>pHcal[at25C] and Omegacal[at25C]</p>
<p>pHcal[at25C] and Omegacal[at25C] was calculated using the CO2SYS program and the measured DIC and TA as the input pair (van Heuven, 2011). Silicate and phosphate concentrations were assigned as 0 in CO2SYS. The coefficients for pH and Ω calculation were selected as: K1 and K2 value from Lueker et al. (2000); KHF- was from Dickson &amp; Riley (1979); KHSO4 was from Dickson (1990) and BT (total boron) was from Uppström (1974).</p>
<p>&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1559279 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1559279
completed
Wei-Jun Cai
University of Delaware
302-831-2839
School of Marine Science and Policy Office: 014 Lammot DuPont Laboratory
Newark
DE
19716
USA
wcai@udel.edu
pointOfContact
Nancy Rabalais
Louisiana State University
9858512801
Room 3161, Energy, Coast and Environment Building
Baton Rouge
LA
70803
US
nrabalais@lumcon.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Year
Month
Longitude
Latitude
Depth
Temperature
Salinity
OxygenSBE
TA_final
flag_TA
DIC_final
flag_DIC
pHelec_NBS_at25
flag_pHelec
pHspec_at25C
flag_pHspec
pHcal
Omegacal
24-bottle rosette equipped with a SeaBird CTD 911
Semi-automated titrator (AS-ALK2 Apollo Scitech)
theme
None, User defined
year
month of year
longitude
latitude
depth
water temperature at measurement depth
salinity
dissolved Oxygen
total alkalinity (TA)
flag
dissolved inorganic Carbon
pH
Calcite Saturation State
featureType
BCO-DMO Standard Parameters
Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer
CTD Sea-Bird 911
Titrator
instrument
BCO-DMO Standard Instruments
PE08-52
PE09-43
PE11-02
PE12-03
PE13-03
PE14-04
PE15-03
PE16-03
PE17-03
PE18-02
GM0606
GM0609
GM0705
service
Deployment Activity
Northern Gulf of Mexico, latitude: 25.00N to 32.00N; Longitude: 86.00W to 96.00W
Cocodrie, Louisiana
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: pH Dynamics and Interactive Effects of Multiple Processes in a River-Dominated Eutrophic Coastal Ocean
https://osprey.bco-dmo.org/project/751332
Collaborative Research: pH Dynamics and Interactive Effects of Multiple Processes in a River-Dominated Eutrophic Coastal Ocean
<p><strong>NSF Award Abstract:</strong></p>
<p>Ocean acidification (OA) refers to the lowering of ocean pH (or increasing acidity) due to uptake of atmospheric carbon dioxide (CO2). A great deal of research has been done to understand how the open ocean is influenced by OA, but coastal systems have received little attention. In the northern Gulf of Mexico (nGOM) shelf region, pH in bottom waters can measure up to 0.45 units less than the pH of the pre-industrial surface ocean, in comparison to the 0.1 overall pH decrease across the entire ocean. Carbonate chemistry in the ocean is greatly influenced by even small changes in pH, so these seemingly minor changes lead to much greater impacts on the biology and chemistry of the ocean. The researchers plan to study coastal OA in the nGOM, a region subject to high inputs of nutrients from the Mississippi River. These inputs of anthropogenic nitrogen mostly derived from fertilizers leads to increased respiration rates which decreases oxygen concentrations in the water column to the point of hypoxia in the summer. This study will inform us how OA in coastal waters subject to eutrophication and hypoxia will impact the chemistry and biology of the region. The researchers are dedicated to outreach programs in the Gulf and east coast regions, interacting with K-12 students and teachers, undergraduate/graduate student training, and various outreach efforts (family workshops on OA, lectures for the public and federal, state, and local representatives). Also, a project website will be created to disseminate the research results to a wider audience.</p>
<p>Increased uptakes of atmospheric carbon dioxide (CO2) by the ocean has led to a 0.1 unit decrease in seawater pH and carbonate mineral saturation state, a process known as Ocean Acidification (OA), which threatens the heath of marine organisms, alters marine ecosystems, and biogeochemical processes. Considerable attention has been focused on understanding the impact of OA on the open ocean but less attention has been given to coastal regions. Recent studies indicate that pH in bottom waters of the northern Gulf of Mexico (nGOM) shelf can be as much as 0.45 units lower relative to pre-industrial values. This occurs because the acidification resulting from increased CO2 inputs (both atmospheric inputs and in-situ respiration) decreases the buffering capacity of seawater. This interactive effect will increase with time, decreasing summertime nGOM bottom-water pH by an estimated 0.85 units and driving carbonate minerals to undersaturation by the end of this century. Researchers from the University of Delaware and the Louisiana Universities Marine Consortium will carry out a combined field, laboratory, and modeling program to address the following questions. (1) What are the physical, chemical, and biological controls on acidification in coastal waters impacted by the large, nutrient-laden Mississippi River?; (2) What is the link between coastal-water acidification, eutrophication, and hypoxia; (3) How do low pH and high CO2 concentrations in bottom waters affect CO2 out-gassing during fall and winter and storm periods when the water column is mixed?; and (4) What are the influences of changing river inputs under anthropogenic forcing on coastal water acidification? Results from this research aim to further our understanding of the processes influencing ocean acidification in coastal waters subject to eutrophication and hypoxia both in the GOM and river-dominated shelf ecosystems globally.</p>
<p><strong>Related Project note:</strong></p>
<p>There are overlapping cruises with the project "Sed Control on OA" <a href="https://www.bco-dmo.org/project/815333">https://www.bco-dmo.org/project/815333</a>. Thus, while some water column data can be found under this project "nGOMx acidification", all benthic data can be found under the "Sed Control on OA" project.</p>
nGOMx acidification
largerWorkCitation
project
eng; USA
oceans
Northern Gulf of Mexico, latitude: 25.00N to 32.00N; Longitude: 86.00W to 96.00W; Cocodrie, Louisiana
-94
-88
27.5
30
2006-06-01
2017-07-31
northern Gulf of Mexico, 27.5 N, 30 N, 88 W, 94 W
0
BCO-DMO catalogue of parameters from DIC, TA, calculated pH and carbonate saturation state in the summer bottom water in North Gulf of Mexico from 2006 to 2017
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/818885.rdf
Name: Year
Units: unitless
Description: <p>Sampling year</p>
http://lod.bco-dmo.org/id/dataset-parameter/818886.rdf
Name: Month
Units: unitless
Description: <p>Sampling month</p>
http://lod.bco-dmo.org/id/dataset-parameter/818887.rdf
Name: Longitude
Units: Decimal degrees
Description: <p>Longitude, west is negative </p>
http://lod.bco-dmo.org/id/dataset-parameter/818888.rdf
Name: Latitude
Units: Decimal degrees
Description: <p>Latitude, south is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/818889.rdf
Name: Depth
Units: meter (m)
Description: <p>sampling depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/818890.rdf
Name: Temperature
Units: Degrees Celsius (°C)
Description: <p>temperature in sampling depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/818891.rdf
Name: Salinity
Units: PSU
Description: <p>salinity in sampling depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/818892.rdf
Name: OxygenSBE
Units: Millgram per liter (mg/L)
Description: <p>CTD Dissolved oxygen concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/818893.rdf
Name: TA_final
Units: Micromole per kilogram (umol/kg)
Description: <p>Total Alkalinity</p>
http://lod.bco-dmo.org/id/dataset-parameter/818894.rdf
Name: flag_TA
Units: unitless
Description: <p>TA_final_flag flag_1 means missing value; flag_2 means precision <0.1%; Flag_3 means precision>0.1%</p>
http://lod.bco-dmo.org/id/dataset-parameter/818895.rdf
Name: DIC_final
Units: Micromole per kilogram (umol/kg)
Description: <p>Total dissolved inorganic carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/818896.rdf
Name: flag_DIC
Units: unitless
Description: <p>DIC_final_flag flag_1 means missing value; flag_2 means precision <0.1%; Flag_3 means precision>0.1%</p>
http://lod.bco-dmo.org/id/dataset-parameter/818897.rdf
Name: pHelec_NBS_at25
Units: unitless
Description: <p>NBS pH measured by electrode</p>
http://lod.bco-dmo.org/id/dataset-parameter/818898.rdf
Name: flag_pHelec
Units: unitless
Description: <p>pHelec_flag flag_1 means missing value; flag_2 means precision <±0.02; Flag_3 means precision>±0.02</p>
http://lod.bco-dmo.org/id/dataset-parameter/818899.rdf
Name: pHspec_at25C
Units: unitless
Description: <p>total scale pH measured by spectrometer</p>
http://lod.bco-dmo.org/id/dataset-parameter/818900.rdf
Name: flag_pHspec
Units: unitless
Description: <p>pHspec_flag flag_1 means missing value; flag_2 means precision <±0.005; Flag_3 means precision>±0.005</p>
http://lod.bco-dmo.org/id/dataset-parameter/818901.rdf
Name: pHcal
Units: unitless
Description: <p>Calculated pH from DIC and TA</p>
http://lod.bco-dmo.org/id/dataset-parameter/818902.rdf
Name: Omegacal
Units: unitless
Description: <p>Calculated carbonate saturation states from DIC and TA</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
59735
https://darchive.mblwhoilibrary.org/bitstream/1912/26173/1/dataset-818773_2006-2017summerbottomgom__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.818773.1
download
onLine
dataset
<p>DIC and TA</p>
<p>Measure of DIC using NDIR method and of TA using Gran titration. DIC and TA were measured using the instruments from Apollo Scitech Inc. Briefly, for DIC analysis, samples were analyzed at room temperatures. Each seawater sample (0.5 mL) was acidified using phosphoric acid and the evolved CO2 gas was extracted and carried by pure N2 gas to an infrared CO2 detector (Li-Cor 6262) for quantification. TA&nbsp;was determined on 25 mL seawater sample by potentiometric titration, using 0.1 M hydrochloric acid and an open-cell titration system. All TA samples were analyzed in pre-thermostated (25 °C) glass cells. For each DIC or TA sample, sub-samples were sequentially analyzed 2 or 3 times until we obtained two replicates with a precision within 0.1%. The average of the two values is reported. The precision of both the TA and DIC measurements was +/- 2 umol/kg. The accuracies of the TA and DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography.</p>
<p>pH_elec</p>
<p>pH samples were drawn in 60 ml glass bottles and temperature equilibrated at 25 oC. An Orion Combination electrode connected to a pH meter (Orion Star A211) was used to measure the potential (EMF, mV) generated by the H+ ions. EMF was calibrated using three NBS buffer solutions at pH 4.01, 7.0, and 10.01 purchased from Fisher Scientific. Probe was kept immersed in the sample until the EMF stabilized. Two EMF readings at a difference of 1 minute were obtained for each sample and average value used with calibration to calculate the pH. Precision on pH is estimated from the standard deviation of the mean of two EMF readings. Samples where such deviation exceeded 0.16% of the mean EMF are flagged.</p>
<p>pH_spec</p>
<p>Discrete sample pH_spec was measured spectrophotometrically at 25 degrees Celsius on the total pH scale using purified M-Cresol Purple purchased from R. Byrne at the University of South Florida [Clayton and Byrne, 1993; Liu et al., 2011]. The spectrophotometric pH (25 oC, total scale) was calculated from the ratio of the measured absorbances of mCP at wavelengths l2 = 578 nm and l1 = 434 nm following the dissociation constants proposed by Liu et al 2011].</p>
<p>pHcal[at25C] and Omegacal[at25C]</p>
<p>pHcal[at25C] and Omegacal[at25C] was calculated using the CO2SYS program and the measured DIC and TA as the input pair (van Heuven, 2011). Silicate and phosphate concentrations were assigned as 0 in CO2SYS. The coefficients for pH and Ω calculation were selected as: K1 and K2 value from Lueker et al. (2000); KHF- was from Dickson &amp; Riley (1979); KHSO4 was from Dickson (1990) and BT (total boron) was from Uppström (1974).</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
<p>The software to do data processing is Microsoft Excel. CTD data was downloaded from CTD directly without any further data processing. Both TA and DIC was converted to units of µmol/kg from µmol/L with density equation. The difference between pH_spec and pHcal@25C was 0.00±0.02.&nbsp;</p>
<p>&nbsp;</p>
<p>BCO-DMO Data Manager Processing Notes:<br />
* added a conventional header with dataset name, PI name, version date<br />
* modified parameter names to conform with BCO-DMO naming conventions<br />
* blank values in this dataset are displayed as "nd" for "no data."&nbsp; nd is the default missing data identifier in the BCO-DMO system.</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
PI Supplied Instrument Name: Instrument Name: Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer Instrument Short Name:Apollo SciTech AS-C3 Instrument Description: A Dissolved Inorganic Carbon (DIC) analyzer, for use in aquatic carbon dioxide parameter analysis of coastal waters, sediment pore-waters, and time-series incubation samples. The analyzer consists of a solid state infrared CO2 detector, a mass-flow controller, and a digital pump for transferring accurate amounts of reagent and sample. The analyzer uses an electronic cooling system to keep the reactor temperature below 3 degrees Celsius, and a Nafion dry tube to reduce the water vapour and keep the analyzer drift-free and maintenance-free for longer. The analyzer can handle sample volumes from 0.1 - 1.5 milliliters, however the best results are obtained from sample volumes between 0.5 - 1 milliliters. It takes approximately 3 minutes per analysis, and measurement precision is plus or minus 2 micromoles per kilogram or higher for surface seawater. It is designed for both land based and shipboard laboratory use.
24-bottle rosette equipped with a SeaBird CTD 911
24-bottle rosette equipped with a SeaBird CTD 911
PI Supplied Instrument Name: 24-bottle rosette equipped with a SeaBird CTD 911 Instrument Name: CTD Sea-Bird 911 Instrument Short Name:CTD SBE 911 Instrument Description: The Sea-Bird SBE 911 is a type of CTD instrument package. The SBE 911 includes the SBE 9 Underwater Unit and the SBE 11 Deck Unit (for real-time readout using conductive wire) for deployment from a vessel. The combination of the SBE 9 and SBE 11 is called a SBE 911. The SBE 9 uses Sea-Bird's standard modular temperature and conductivity sensors (SBE 3 and SBE 4). The SBE 9 CTD can be configured with 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/TOOL0035/
Semi-automated titrator (AS-ALK2 Apollo Scitech)
Semi-automated titrator (AS-ALK2 Apollo Scitech)
PI Supplied Instrument Name: Semi-automated titrator (AS-ALK2 Apollo Scitech) PI Supplied Instrument Description:AS-ALK2 is designed for both laboratory and shipboard use with small sample volume (10 – 25 mL) and high precision (0.1% or better). The titrator is fully automated with standardization and sample analysis. AS-ALK2 provides Gran titration for alkalinity determination of both seawater and brackish waters. Full temperature control is provided on all liquids. Water jackets are used to surround the digital syringes for temperature control. For best data quality, a water bath must be used to supply water with a constant temperature to control the titration temperature. Instrument Name: Titrator Instrument Short Name:Titrator Instrument Description: Titrators are instruments that incrementally add quantified aliquots of a reagent to a sample until the end-point of a chemical reaction is reached. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB12/
Cruise: PE08-52
PE08-52
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE08-52
Alan M. Shiller
University of Southern Mississippi
Cruise: PE09-43
PE09-43
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE09-43
Alan M. Shiller
University of Southern Mississippi
Cruise: PE11-02
PE11-02
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE11-02
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE12-03
PE12-03
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE12-03
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE13-03
PE13-03
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE13-03
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE14-04
PE14-04
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE14-04
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE15-03
PE15-03
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE15-03
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE16-03
PE16-03
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE16-03
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE17-03
PE17-03
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE17-03
Nancy Rabalais
Louisiana Universities Marine Consortium
Cruise: PE18-02
PE18-02
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE18-02
Wei-Jun Cai
University of Delaware
Cruise: GM0606
GM0606
International Council for the Exploration of the Sea
OSV Bold
vessel
Cruise: GM0609
GM0609
International Council for the Exploration of the Sea
OSV Bold
vessel
Cruise: GM0705
GM0705
International Council for the Exploration of the Sea
OSV Bold
vessel
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
International Council for the Exploration of the Sea
OSV Bold
vessel