Dataset: EPR Nutrients

Name: Dissolved nitrate plus nitrite, nitrite and phosphate from water column of the East Pacific Rise in April 2019 aboard the R/V Atlantis cruise AT42-09
Published: 2025-01-17
Keywords: Oxygen deficient zone, Nutrients, , oceans

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Cite This Dataset

Water column of the Eastern Tropical North Pacific Ocean overlying the East Pacific Rise hydrothermal vent field. 9°50'N 104°18.14'W Full depth profile to 2500 m

Project:

Collaborative Research: From hot to cold in the dark - shifts in seafloor massive sulfide microbial communities as physical and geochemical conditions change after venting ceases (Hot2cold Vents)

Principal Investigator:

Jacob A. Cram (University of Maryland Center for Environmental Science, UMCES/HPL)

Scientist:

Clara Fuchsman (University of Maryland Center for Environmental Science, UMCES/HPL)

Jason Brent Sylvan (Texas A&M University, TAMU)

Dr Benjamin Tully (University of Southern California, USC)

Student:

Paulina Huanca Valenzuela (University of Maryland Center for Environmental Science, UMCES/HPL)

Technician:

Jerry Frank (University of Maryland Center for Environmental Science, UMCES)

Version:

Version Date:

2025-01-17

Restricted:

Validated:

Current State:

Data not available

Dissolved nitrate plus nitrite, nitrite and phosphate from water column of the East Pacific Rise in April 2019 aboard the R/V Atlantis cruise AT42-09

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Description

These data were supported by NSF award OCE-1756339 and Horn Point Laboratory startup funds.

Methods & Sampling

Water was collected from the CTD rosette and prefiltered through a 0.2 μm Sterivex filter into a triplle rinsed 50 ml falcon tube. Samples were stored at -80 °C, shipped to University of Southern California on dry ice, stored for one year, and then shipped on to UMCES. At UMCES prefiltered (0.2 µm) dissolved nitrate, nitrite, and phosphate from the water samples were analyzed at the Nutrient Analytical Services Laboratory at the Chesapeake Biological Laboratory (CBL) where nitrite plus nitrate were measured by using the Method EPA 353.2. Phosphate by using method EPA 365.1, and Nitrate with the method ASTM D-7781-14.

Problems/Issues

All samples were stored from spring 2019 though fall 2022 longer than 28 days from collection to sample processing recommended by the sequencing center.

Data Processing Description

Data were processes by Chesapeake Bay Laboratory Analytical Services using their standard pipeline. Final data files for upload to BCO DMO were curated by hand by Jacob Cram.

More Information about this dataset

Funding Sources