http://lod.bco-dmo.org/id/dataset/961606
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
2025-05-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Muscle mercury concentrations in three coastal fish species from the Matagorda Bay region of Texas in the northwestern Gulf of Mexico from 2021 to 2023
2025-05-13
publication
2025-05-13
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-08-15
publication
https://doi.org/10.26008/1912/bco-dmo.961606.1
Benjamin Walther
Texas A&M, Corpus Christi
principalInvestigator
Roxanne Razavi
State University of New York College of Environmental Science and Forestry
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: Walther, B., Oster, J., Razavi, R. (2025) Muscle mercury concentrations in three coastal fish species from the Matagorda Bay region of Texas in the northwestern Gulf of Mexico from 2021 to 2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-05-13 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.961606.1 [access date]
Muscle mercury concentrations in three coastal fish species Dataset Description: Methods and Sampling: <p>Fish collection locations and associated information are found in an accompanying dataset for this project: <a href="https://www.bco-dmo.org/dataset/916418" target="_blank">https://www.bco-dmo.org/dataset/916418</a>.</p>
<p>Muscle samples from individual fish were dissected, dried, and pulverized to a fine powder. Powdered muscle samples were analyzed at the SUNY College of Environmental Science and Forestry. Samples are weighed into boats and placed in an autosampler. The autosampler places the boat into a furnace to undergo thermal decomposition under oxygen. A catalyst furnace then removes interferences and reduces all mercury species. The mercury is subsequently trapped on a gold amalgamator, then desorbed and swept into an atomic absorbance spectrophotometer equipped with a 254-nanometer (nm) mercury lamp.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1924011 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1924011
completed
Benjamin Walther
Texas A&M, Corpus Christi
361-825-4168
6300 Ocean Drive Unit # 5858
Corpus Christi
TX
78412
USA
benjamin.walther@tamucc.edu
pointOfContact
Roxanne Razavi
State University of New York College of Environmental Science and Forestry
razavi@esf.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
FishID
Species_Code
Species
Hg
Station_Latitude
Station_Longitude
Date_Collected
Milestone DMA-80 Tricell
theme
None, User defined
sample identification
species scientific name (binomial)
Elemental Mercury
latitude
longitude
date
featureType
BCO-DMO Standard Parameters
Milestone Direct Mercury Analyzer
instrument
BCO-DMO Standard Instruments
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: Shifting the Hypoxia Paradigm – New Directions to Explore the Spread and Impacts of Ocean/Great Lakes Deoxygenation
https://osprey.bco-dmo.org/project/770460
Collaborative Research: Shifting the Hypoxia Paradigm – New Directions to Explore the Spread and Impacts of Ocean/Great Lakes Deoxygenation
<p><em>NSF Award Abstract:</em><br />
Ocean oxygen loss (deoxygenation) is increasing due to climate warming. This warming, together with nutrient loading, is causing many marine and freshwater systems to experience increasing episodes of hypoxia (low oxygen) of greater duration and intensity. Impacts on fish and fisheries have been difficult to quantify; direct observation has been challenged by a lack of long-term exposure indicators. This team has successfully refined the use of fish chemical biomarkers in fish otoliths (earstones) to directly assess lifetime hypoxia exposure in fishes. This project will those findings to look for additional biomarkers and models, to expand our understanding of how hypoxia affects fish and their food webs, contaminant transfers, and ecosystem services including economic impacts. The project includes a unique way of training students in science communication, posing the question: What forms of media and "messaging strategies" about deoxygenation are most effective at raising public awareness and understanding? Students are developing entries for PlanetForward's Storyfest, which is a contest to tell compelling stories to foster environmental understanding and solutions. Students from historically underrepresented, economically disadvantaged backgrounds are particularly sought out to participate. The investigators will engage with regional, national, and international management agencies and other relevant stakeholder groups to share information.</p>
<p>This project encompasses a novel, linked set of interdisciplinary studies of food webs, and ecosystem services assessment. The thematic questions explored in this project are: 1. How does hypoxia alter habitat use for fishes? 2. How does hypoxia-altered habitat use and habitat productivity change food webs? 3. How does hypoxia affect/enhance trophic transfer of methylmercury? 4. How do hypoxia-induced changes in food webs affect aquatic ecosystem services? The set of linked studies will employ chemical analyses of otoliths and eye lenses, combined with chemical analyses of muscle tissues (Questions 1 and 3), physiologically-structured food web modeling informed by monitoring time-series (Questions 2 and 4), and a scoping workshop to address ecosystem services (Question 4). The investigators are using a "trans-basin" comparative approach to system-specific responses, studying fishes in Lake Erie, the Baltic Sea, and a Gulf of Mexico estuary. They study three species from each system that represent different degrees of benthic reliance, to discern differential responses to the increasingly hypoxic environment. This research provides novel insight about variable biotic responses to oxygen loss and the impacts on ecosystem functioning.</p>
HypoxiDigm / Project Breathless
largerWorkCitation
project
eng; USA
oceans
-96.641667
-96.009722
28.4184066
28.785556
2021-07-16
2023-07-01
Central Baltic Sea; Lake Erie; and Lavaca Bay, Texas
0
BCO-DMO catalogue of parameters from Muscle mercury concentrations in three coastal fish species from the Matagorda Bay region of Texas in the northwestern Gulf of Mexico from 2021 to 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/961680.rdf
Name: FishID
Units: unitless
Description: <p>Unique identifier number for each individual fish included in the project. IDs include a prefix of "MB" (Matagorda Bay) or "PB" (Project Breathless) followed by a unique sequence of digits.</p>
http://lod.bco-dmo.org/id/dataset-parameter/961681.rdf
Name: Species_Code
Units: unitless
Description: <p>Code indicating whether fish was a Red Drum ("RD"), Atlantic Croaker ("CR") or Southern Flounder ("FL").</p>
http://lod.bco-dmo.org/id/dataset-parameter/961682.rdf
Name: Species
Units: unitless
Description: <p>Latin binomial (Genus species) of each individual collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/961683.rdf
Name: Hg
Units: micrograms/gram (ug/g)
Description: <p>Muscle tissue mercury concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/961684.rdf
Name: Station_Latitude
Units: decimal degrees
Description: <p>Collection location latitude in decimal degrees; positive values = North</p>
http://lod.bco-dmo.org/id/dataset-parameter/961685.rdf
Name: Station_Longitude
Units: decimal degrees
Description: <p>Collection location longitude in decimal degrees; negative values = West</p>
http://lod.bco-dmo.org/id/dataset-parameter/961686.rdf
Name: Date_Collected
Units: unitless
Description: <p>Date of fish collection</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
20205
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/c4cb6ce8-87d1-4f74-924a-1ec43b9bc0ae/content
download
https://doi.org/10.26008/1912/bco-dmo.961606.1
download
onLine
dataset
<p>Fish collection locations and associated information are found in an accompanying dataset for this project: <a href="https://www.bco-dmo.org/dataset/916418" target="_blank">https://www.bco-dmo.org/dataset/916418</a>.</p>
<p>Muscle samples from individual fish were dissected, dried, and pulverized to a fine powder. Powdered muscle samples were analyzed at the SUNY College of Environmental Science and Forestry. Samples are weighed into boats and placed in an autosampler. The autosampler places the boat into a furnace to undergo thermal decomposition under oxygen. A catalyst furnace then removes interferences and reduces all mercury species. The mercury is subsequently trapped on a gold amalgamator, then desorbed and swept into an atomic absorbance spectrophotometer equipped with a 254-nanometer (nm) mercury lamp.</p>
Specified by the Principal Investigator(s)
- Imported fish collection location data (file "916418_v2_fish_collection_locations.csv")
- Imported original file "Hg data upload_v2.xlsx" into the BCO-DMO system.
- Flagged "NAN" as a missing data value (missing data are empty/blank in the final CSV file).
- Added the following columns from the fish collection location data file to this dataset by joining on Fish_ID: Station_Latitude, Station_Longitude, Date_Collected, Species.
- Saved the final file as "961606_v1_fish_muscle_mercury.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
Milestone DMA-80 Tricell
Milestone DMA-80 Tricell
PI Supplied Instrument Name: Milestone DMA-80 Tricell Instrument Name: Milestone Direct Mercury Analyzer Instrument Short Name:DMA-80 Instrument Description: The Milestone DMA-80 is a mercury analyzer used to determine mercury concentrations in liquid and solid samples. The DMA-80 is based on the principles of sample thermal decomposition, mercury amalgamation, and atomic absorption detection. See more: https://milestonesci.com/direct-mercury-analyzer/