©2020 Biological and Chemical Oceanography Data Management Office.This data set includes water column inorganic nutrient and dissolved organic nitrogen (DON) concentration and nitrate+nitrite d15N and d18O and DON δ15N measurements from May 2017 and May 2018 cruises in the North/Central Gulf of Mexico that were used together with sinking particulate N data to construct δ15N budgets.
Water column samples were collected by Niskin bottle on a CTD rosette (“CTD profile”) in the North/Central Gulf of Mexico during Nancy Foster cruises (NF17-04, NF18-02) in May 2017 and May 2018, as part of the NOAA RESTORE (aka BLOOFINZ-GoM) project. All samples were 0.2 µm filtered into pre-washed HDPE bottles which were frozen at -20 degrees Celsius until analysis on land.
Acquisition and associated instruments:
Nitrate+nitrite concentration was measured on a Thermo 42i NOx analyzer
Nitrate+nitrite d15N was measured using a Thermo Finnigan Delta V isotope ratio mass spectrometer.
Phosphate concentration was determined using a Shimadzu UV-1800 uv-vis spectrophotometer.
Ammonium concentration was determined using a Turner Trilogy fluorometer.
Knapp, A. N., Landry, M. R. (2021) Nutrients, nitrate isotopes, and DON isotopes data from samples collected in the Gulf of Mexico on R/V Nancy Foster cruises NF1704 and NF1802 in May 2017 and May 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-12-31 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.834984.1 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
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