http://lod.bco-dmo.org/id/dataset/834984
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
2020-12-31
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
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
2020-12-31
publication
2020-12-31
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-01-04
publication
https://doi.org/10.26008/1912/bco-dmo.834984.1
Angela N. Knapp
Florida State University EOAS
principalInvestigator
Michael R. Landry
University of California-San Diego Scripps
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: 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]
BLOOFINZ-GoM Nutrients, Nitrate isotopes, DON isotopes Dataset Description: Methods and Sampling: <p>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.&nbsp; All samples were 0.2 µm filtered into pre-washed HDPE bottles which were frozen at -20 degrees Celsius until analysis on land.&nbsp;</p>
<p>Acquisition and associated instruments:<br />
Nitrate+nitrite concentration was measured on a Thermo 42i NOx analyzer<br />
Nitrate+nitrite d15N was measured using a Thermo Finnigan Delta V isotope ratio mass spectrometer.<br />
Phosphate concentration was determined using a Shimadzu UV-1800 uv-vis spectrophotometer.<br />
Ammonium concentration was determined using a Turner Trilogy fluorometer.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1851347 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1851347
completed
Angela N. Knapp
Florida State University EOAS
(979) 862-5235
797 Lamar St. Dept of Oceanography, Eller O&M Room 1204
College Station
TX
77843
USA
aknapp@tamu.edu
pointOfContact
Michael R. Landry
University of California-San Diego Scripps
858-534-4702
9500 Gilman Drive Mail Code: 0227
La Jolla
CA
92093-0227
USA
mlandry@ucsd.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cruise_ID
Sampling_Date
Latitude
Longitude
Cycle
Cast
Bottle
Pressure
Temperature
Salinity
SigmaTheta
Depth
NO3_NO2
PO4
NH4
DON
NO3_NO2_d15N
NO3_NO2_d18O
DON_d15N
Thermo 42i NOx analyzer
Turner Trilogy fluorometer
Thermo Finnigan Delta V isotope ratio mass spectrometer
Shimadzu UV-1800 uv-vis spectrophotometer
theme
None, User defined
Cruise identifier
date
latitude
longitude
No BCO-DMO term
cast
Niskin bottle number
water pressure
water temperature at measurement depth
salinity from water bottle samples
sigma-theta
depth
nitrate plus nitrite
reactive phosphorus (PO4)
Ammonium
Dissolved Organic Nitrogen
delta 15N NO3+NO2
oxygen 16 to oxygen 18 ratio
d15N
featureType
BCO-DMO Standard Parameters
Chemiluminescence NOx Analyzer
Fluorometer
Isotope-ratio Mass Spectrometer
UV Spectrophotometer-Shimadzu
instrument
BCO-DMO Standard Instruments
NF1704
NF1802
service
Deployment Activity
Gulf of Mexico
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.
Second International Indian Ocean Expedition
https://web.whoi.edu/iioe2/
Second International Indian Ocean Expedition
Description from the program website:
The Second International Indian Ocean Expedition (IIOE-2) is a major global scientific program which will engage the international scientific community in collaborative oceanographic and atmospheric research from coastal environments to the deep sea over the period 2015-2020, revealing new information on the Indian Ocean (i.e. its currents, its influence upon the climate, its marine ecosystems) which is fundamental for future sustainable development and expansion of the Indian Ocean's blue economy. A large number of scientists from research institutions from around the Indian Ocean and beyond are planning their involvement in IIOE-2 in accordance with the overarching six scientific themes of the program. Already some large collaborative research projects are under development, and it is anticipated that by the time these projects are underway, many more will be in planning or about to commence as the scope and global engagement in IIOE-2 grows.
Focused research on the Indian Ocean has a number of benefits for all nations. The Indian Ocean is complex and drives the region's climate including extreme events (e.g. cyclones, droughts, severe rains, waves and storm surges). It is the source of important socio-economic resources (e.g. fisheries, oil and gas exploration/extraction, eco-tourism, and food and energy security) and is the background and focus of many of the region's human populations around its margins. Research and observations supported through IIOE-2 will result in an improved understanding of the ocean's physical and biological oceanography, and related air-ocean climate interactions (both in the short-term and long-term). The IIOE-2's program will complement and harmonise with other regional programs underway and collectively the outcomes of IIOE-2 will be of huge benefit to individual and regional sustainable development as the information is a critical component of improved decision making in areas such as maritime services and safety, environmental management, climate monitoring and prediction, food and energy security.
IIOE-2 activities will also include a significant focus on building the capacity of all nations around the Indian Ocean to understand and apply observational data or research outputs for their own socio-economic requirements and decisions. IIOE-2 capacity building programs will therefore be focused on the translation of the science and information outputs for societal benefit and training of relevant individuals from surrounding nations in these areas.
A Steering Committee was established to support U.S. participation in IIOE-2. More information is available on their website at https://web.whoi.edu/iioe2/.
IIOE-2
largerWorkCitation
program
Collaborative Research: Mesoscale variability in nitrogen sources and food-web dynamics supporting larval southern bluefin tuna in the eastern Indian Ocean
https://osprey.bco-dmo.org/project/819488
Collaborative Research: Mesoscale variability in nitrogen sources and food-web dynamics supporting larval southern bluefin tuna in the eastern Indian Ocean
<p><em>NSF Award Abstract:</em><br />
The small area between NW Australia and Indonesia in the eastern Indian Ocean (IO) is the only known spawning ground of Southern Bluefin Tuna (SBT), a critically endangered top marine predator. Adult SBT migrate thousands of miles each year from high latitude feeding areas to lay their eggs in these tropical waters, where food concentrations on average are below levels that can support optimal feeding and growth of their larvae. Many critical aspects of this habitat are poorly known, such as the main source of nitrogen nutrient that sustains system productivity, how the planktonic food web operates to produce the unusual types of zooplankton prey that tuna larvae prefer, and how environmental differences in habitat quality associated with ocean fronts and eddies might be utilized by adult spawning tuna to give their larvae a greater chance for rapid growth and survival success. This project investigates these questions on a 38-day expedition in early 2021, during the peak time of SBT spawning. This project is a US contribution to the 2nd International Indian Ocean Expedition (IIOE-2) that advances understanding of biogeochemical and ecological dynamics in the poorly studied eastern IO. This is the first detailed study of nitrogen and carbon cycling in the region linking Pacific and IO waters. The shared dietary preferences of SBT larvae with those of other large tuna and billfish species may also make the insights gained broadly applicable to understanding larval recruitment issues for top consumers in other marine ecosystems. New information from the study will enhance international management efforts for SBT. The shared larval dietary preferences of large tuna and billfish species may also extend the insights gained broadly to many other marine top consumers, including Atlantic bluefin tuna that spawn in US waters of the Gulf of Mexico. The end-to-end study approach, highlights connections among physical environmental variability, biogeochemistry, and plankton food webs leading to charismatic and economically valuable fish production, is the theme for developing educational tools and modules through the "scientists-in-the-schools" program of the Center for Ocean-Atmospheric Prediction Studies at Florida State University, through a program for enhancing STEM learning pathways for underrepresented students in Hawaii, and through public outreach products for display at the Birch Aquarium in San Diego. The study also aims to support an immersive field experience to introduce talented high school students to marine research, with the goal of developing a sustainable marine-related educational program for underrepresented students in rural northwestern Florida.</p>
<p>Southern Bluefin Tuna (SBT) migrate long distances from high-latitude feeding grounds to spawn exclusively in a small oligotrophic area of the tropical eastern Indian Ocean (IO) that is rich in mesoscale structures, driven by complex currents and seasonally reversing monsoonal winds. To survive, SBT larvae must feed and grow rapidly under environmental conditions that challenge conventional understanding of food-web structure and functional relationships in poor open-ocean systems. The preferred prey of SBT larvae, cladocerans and Corycaeidae copepods, are poorly studied and have widely different implications for trophic transfer efficiencies to larvae. Differences in nitrogen sources - N fixation vs deep nitrate of Pacific origin - to sustain new production in the region also has implications for conditions that may select for prey types (notably cladocerans) that enhance transfer efficiency and growth rates of SBT larvae. The relative importance of these N sources for the IO ecosystem may affect SBT resiliency to projected increased ocean stratification. This research expedition investigates how mesoscale variability in new production, food-web structure and trophic fluxes affects feeding and growth conditions for SBT larvae. Sampling across mesoscale features tests hypothesized relationships linking variability in SBT larval feeding and prey preferences (gut contents), growth rates (otolith analyses) and trophic positions (TP) to the environmental conditions of waters selected by adult spawners. Trophic Positions of larvae and their prey are determined using Compound-Specific Isotope Analyses of Amino Acids (CSIA-AA). Lagrangian experiments investigate underlying process rates and relationships through measurements of water-column 14C productivity, N2 fixation, 15NO3- uptake and nitrification; community biomass and composition (flow cytometry, pigments, microscopy, in situ imaging, genetic analyses); and trophic fluxes through micro- and mesozooplankton grazing, remineralization and export. Biogeochemical and food web elements of the study are linked by CSIA-AA (N source, TP), 15N-constrained budgets and modeling. The project elements comprise an end-to-end coupled biogeochemistry-trophic study as has not been done previously for any pelagic ecosystem.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
BLOOFINZ-IO
largerWorkCitation
project
eng; USA
oceans
Gulf of Mexico
-90.1875
-87.207
25.6642
28.355
2017-05-11
2018-05-19
Eastern Indian Ocean, Indonesian Throughflow area, and the Gulf of Mexico
0
BCO-DMO catalogue of parameters from 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)
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/835172.rdf
Name: Cruise_ID
Units: unitless
Description: <p>Cruise ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/835173.rdf
Name: Sampling_Date
Units: yyyy-mm-dd
Description: <p>Date of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/835174.rdf
Name: Latitude
Units: degrees North
Description: <p>Latitude of sample collection, South is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/835175.rdf
Name: Longitude
Units: degrees East
Description: <p>Longitude of sample collection, West is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/835176.rdf
Name: Cycle
Units: unitless
Description: <p>Sequentially numbered coordinated deployment of floating sediment traps during each cruise</p>
http://lod.bco-dmo.org/id/dataset-parameter/835177.rdf
Name: Cast
Units: unitless
Description: <p>Sequentially numbered cast of the Niskin/CTD rosette</p>
http://lod.bco-dmo.org/id/dataset-parameter/835178.rdf
Name: Bottle
Units: unitless
Description: <p>Niskin bottle from which the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/835179.rdf
Name: Pressure
Units: decibars (db)
Description: <p>Pressure at which the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/835180.rdf
Name: Temperature
Units: degrees Celsius
Description: <p>Temperature of the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/835181.rdf
Name: Salinity
Units: unitless
Description: <p>Salinity of the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/835182.rdf
Name: SigmaTheta
Units: unitless
Description: <p>Potential Density of depth at which sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/835183.rdf
Name: Depth
Units: meters
Description: <p>Depth at which the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/835184.rdf
Name: NO3_NO2
Units: micromolar (µM)
Description: <p>Concentration of nitrate+nitrite in a sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/835185.rdf
Name: PO4
Units: micromolar (µM)
Description: <p>Concentration of soluble reactive phosphorus</p>
http://lod.bco-dmo.org/id/dataset-parameter/835186.rdf
Name: NH4
Units: micromolar (µM)
Description: <p>Concentration of ammonium</p>
http://lod.bco-dmo.org/id/dataset-parameter/835187.rdf
Name: DON
Units: micromolar (µM)
Description: <p>Concentration of dissolved organic nitrogen</p>
http://lod.bco-dmo.org/id/dataset-parameter/835188.rdf
Name: NO3_NO2_d15N
Units: per mil vs. N2 in air
Description: <p>Nitrogen isotopic composition of nitrate+nitrite in a sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/835189.rdf
Name: NO3_NO2_d18O
Units: per mil vs. VSMOW
Description: <p>Oxygen isotopic composition of nitrate+nitrite in a sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/835190.rdf
Name: DON_d15N
Units: per mil vs. N2 in air
Description: <p>NItrogen isotopic composition of DON in a sample</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
32983
https://darchive.mblwhoilibrary.org/bitstream/1912/26529/1/dataset-834984_bloofinz-gom-nutrients-and-isotopes__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.834984.1
download
onLine
dataset
<p>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.&nbsp; All samples were 0.2 µm filtered into pre-washed HDPE bottles which were frozen at -20 degrees Celsius until analysis on land.&nbsp;</p>
<p>Acquisition and associated instruments:<br />
Nitrate+nitrite concentration was measured on a Thermo 42i NOx analyzer<br />
Nitrate+nitrite d15N was measured using a Thermo Finnigan Delta V isotope ratio mass spectrometer.<br />
Phosphate concentration was determined using a Shimadzu UV-1800 uv-vis spectrophotometer.<br />
Ammonium concentration was determined using a Turner Trilogy fluorometer.</p>
Specified by the Principal Investigator(s)
<p><strong>Sample Processing:</strong><br />
NO3-+NO2- concentration was measured using a chemiluminescent method described by Braman and Hendrix, 1989, with a detection limit of 0.1 µM. NH4+ concentration was measured using the fluorescent method of Holmes et al., 1999 with a lower detection limit of 0.025 µM. Phosphate (soluble reactive phosphorus) concentration was measured using the colorimetric method of Koroleff (1983) with a lower detection limit of 50 nM. Dissolved organic nitrogen concentration was determined by subtracting the concentrations of nitrate, nitrite, and ammonium from the concentration of total dissolved nitrogen, determined using persulfate oxidation according to Knapp et al. (2005). NO3-+NO2- d15N and d18O analyses were by the “denitrifier method” and followed the methods described by Sigman et al., 2001, Casciotti et al., 2002, McIlvin and Casciotti, 2011, and Weigand et al., 2016. Briefly, NO3-+NO2- was quantitatively reduced to N2O by Pseudomonas aureofaciens and Pseudomonas chlororaphis, which was then cryogenically focused and analyzed on an isotope ratio mass spectrometer. A volume of sample was added to each bacterial vial to achieve a final quantity of 10 or 20 nmols N2O, which was then purged from the vial using a helium carrier gas. The d15N of N2O in samples was calibrated with the international isotopic reference materials. The δ15N of DON was determined using persulfate oxidation of DON to nitrate and then using the denitrified method as described above.</p>
<p><strong>Precision:</strong><br />
The average precision of the nitrate+nitrite concentration measurement was <u>&lt;</u>0.2 µM.<br />
The average precision of the soluble reactive phosphorus concentration measurement was &lt;0.03 µM.<br />
The average precision of the ammonium concentration measurement was &lt;0.02 µM.<br />
The average precision for DON concentration was 0.3 µM.<br />
The average precision for DON δ15N was 0.3 per mil.<br />
The average precision of nitrate+nitrite δ15N measurements was <u>&lt;</u>0.2 per mil and for d18O was <u>&lt;</u>0.3 per mil. NO3-+NO2- δ15N δ18O analyses were calibrated with IAEA N3 and USGS 34 NO3- d15N isotopic reference materials as described in McIlvin and Casciotti, 2011. NO3-+NO2- d18O were also calibrated with the USGS 35 isotopic reference material as described in McIlvin and Casciotti, 2011.</p>
<p><strong>BCO-DMO processing:</strong><br />
- Date formats changed to yyyy-mm-dd<br />
- Parameter names adjusted to comply with database requirements<br />
- Longitudes West were converted to negative numbers<br />
- Latitude and Longitude rounded to 4 decimal places<br />
- Added a conventional header with dataset name, PI name, version date<br />
- Units added to parameter description metadata section<br />
- Missing data identifier of 'nd' (no data) used</p>
<div>&nbsp;</div>
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
Thermo 42i NOx analyzer
Thermo 42i NOx analyzer
PI Supplied Instrument Name: Thermo 42i NOx analyzer Instrument Name: Chemiluminescence NOx Analyzer Instrument Short Name: Instrument Description: The chemiluminescence method for gas analysis of oxides of nitrogen relies on the measurement of light produced by the gas-phase titration of nitric oxide and ozone. A chemiluminescence analyzer can measure the concentration of NO/NO2/NOX.
One example is the Teledyne Model T200: https://www.teledyne-api.com/products/nitrogen-compound-instruments/t200
Turner Trilogy fluorometer
Turner Trilogy fluorometer
PI Supplied Instrument Name: Turner Trilogy fluorometer Instrument Name: Fluorometer Instrument Short Name:Fluorometer Instrument Description: A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/113/
Thermo Finnigan Delta V isotope ratio mass spectrometer
Thermo Finnigan Delta V isotope ratio mass spectrometer
PI Supplied Instrument Name: Thermo Finnigan Delta V isotope ratio mass spectrometer Instrument Name: Isotope-ratio Mass Spectrometer Instrument Short Name:IR Mass Spec; IRMS Instrument Description: The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/
Shimadzu UV-1800 uv-vis spectrophotometer
Shimadzu UV-1800 uv-vis spectrophotometer
PI Supplied Instrument Name: Shimadzu UV-1800 uv-vis spectrophotometer Instrument Name: UV Spectrophotometer-Shimadzu Instrument Short Name:UV Spectrophotometer-Shimadzu Instrument Description: The Shimadzu UV Spectrophotometer is manufactured by Shimadzu Scientific Instruments (ssi.shimadzu.com). Shimadzu manufacturers several models of spectrophotometer; refer to dataset for make/model information. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/
Cruise: NF1704
NF1704
R/V Nancy Foster
Community Standard Description
International Council for the Exploration of the Sea
R/V Nancy Foster
vessel
NF1704
Estrella Malca
University of Miami
https://datadocs.bco-dmo.org/docs/302/BLOOFINZ_IO/data_docs/cruise_reports/NF1704_CRUISE_REPORT.pdf
Report describing NF1704
Cruise: NF1802
NF1802
R/V Nancy Foster
Community Standard Description
International Council for the Exploration of the Sea
R/V Nancy Foster
vessel
NF1802
John Lamkin
NOAA Southeast Fisheries Science Center
https://datadocs.bco-dmo.org/docs/302/BLOOFINZ_IO/data_docs/cruise_reports/NF1802_CRUISE_REPORT.pdf
Report describing NF1802
R/V Nancy Foster
Community Standard Description
International Council for the Exploration of the Sea
R/V Nancy Foster
vessel