http://lod.bco-dmo.org/id/dataset/775766
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
2019-08-21
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Chlorophyll a concentrations along the cruise track of AR16 from May 2017 in the Sargasso Sea
2019-08-21
publication
2019-08-21
revision
BCO-DMO Linked Data URI
2019-08-21
creation
http://lod.bco-dmo.org/id/dataset/775766
Tatiana A. Rynearson
University of Rhode Island
principalInvestigator
Sonya T. Dyhrman
Columbia University
principalInvestigator
Bethany D. Jenkins
University of Rhode Island
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: Rynearson, T. A., Jenkins, B. D., Dyhrman, S. T. (2019) Chlorophyll a concentrations along the cruise track of AR16 from May 2017 in the Sargasso Sea. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2019-08-21 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/775766 [access date]
Chlorophyll a concentrations along the cruise track of AR16 Dataset Description: <p>Chlorophyll a concentrations along the cruise track of AR16.</p> Methods and Sampling: <p>In situ Chlorophyll a was measured at each station along the AR16 cruise track. A CTD was deployed to collect water from the deep chlorophyll maximum and filtered in triplicate onto GF/F and 5µm polycarbonate filters.&nbsp;</p>
<p>Chl a was extracted from filters in 100% ethanol for 12 hours, measured on a 10-AU Fluorometer, and chlorophyll a and phaeophytin concentrations were calculated based on a predetermined calibration curve. Concentrations on each filter were used to determine total chl a within each size fraction.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1558490 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1558490
onGoing
Tatiana A. Rynearson
University of Rhode Island
401-874-6022
Graduate School of Oceanography, University of Rhode Island 215 South Ferry Rd.
Narragansett
RI
02882
USA
rynearson@uri.edu
pointOfContact
Sonya T. Dyhrman
Columbia University
845-365-8465
102E Geoscience 61 Route 9W, PO Box 1000
Palisades
NY
10964
USA
dyhrman@ldeo.columbia.edu
pointOfContact
Bethany D. Jenkins
University of Rhode Island
401-874-7551
Department of Cell and Molecular Biology and Graduate School of Oceanography 279 CBLS, 120 Flagg Road
Kingston
RI
02881
USA
bdjenkins@uri.edu
pointOfContact
asNeeded
Unknown
datetime
latitude
longitude
station
cast
size_fraction
depth
tube_no
vol_filtered
vol_extracted
Fb
Fa
Notes
blank_subt_Fb
blank_subt_Fa
chla
phaeo
10AU Fluorometer
theme
None, User defined
ISO_DateTime_UTC
latitude
longitude
station number
cast
No BCO-DMO term
depth
tube number
volume of water filtered
volume
fluorescence
comments
chlorophyll a
total phaeopigment
featureType
BCO-DMO Standard Parameters
Turner Designs Fluorometer 10-AU
instrument
BCO-DMO Standard Instruments
AR16
service
Deployment Activity
Western North Atlantic
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: Defining the biogeochemical drivers of diatom physiological ecology in the North Atlantic
https://osprey.bco-dmo.org/project/704768
Collaborative Research: Defining the biogeochemical drivers of diatom physiological ecology in the North Atlantic
<p>NSF abstract:</p>
<p>About half of photosynthesis on earth is generated by marine phytoplankton, single celled organisms that drift with tides and currents. Within the phytoplankton, the diatoms conduct nearly half of this photosynthesis, exerting profound control over global carbon cycling. Despite their importance, there are surprisingly fundamental gaps in understanding how diatoms function in their natural environment, in part because methods to assess in situ physiology are lacking. This project focuses on the application of a powerful new approach, called Quantitative Metabolic Fingerprinting (QMF), to address this knowledge gap and examine species-specific physiology in the field. The project will provide transformative insights into how ocean geochemistry controls the distribution of diatoms, the metabolic responses of individual diatom species, and how metabolic potential is partitioned between diatom species, thus providing new insights into the structure and function of marine systems. The overarching goal is to examine how diatom species respond to changes in biogeochemistry across marine provinces, from the coast to the open ocean, by following shifts in diatom physiology using QMF. This research is critical to understand future changes in oceanic phytoplankton in response to climate and environmental change. Furthermore, activities on this project will include supporting a graduate student and postdoctoral fellow and delivering the Artistic Oceanographer Program (AOP) to diverse middle school age children and teachers in the NYC metropolitan area and to middle-school girls in the Girl Scouts of RI, reaching an anticipated 60 children and 30 teachers annually. The programs will foster multidisciplinary hands-on learning and will directly impact STEM education at a critical point in the pipeline by targeting diverse middle-school aged groups in both NY and RI.</p>
<p>In laboratory studies with cultured isolates, there are profound differences among diatom species' responses to nutrient limitation. Thus, it is likely that different species contribute differently to nutrient uptake, carbon flux and burial. However, marine ecosystem models often rely on physiological attributes drawn from just one species and apply those attributes globally (e.g. coastal species used to model open ocean dynamics) or choose a single average value to represent all species across the world's oceans. In part, this is due to a relatively poor understanding of diatom physiological ecology and a limited tool set for assessing in situ diatom physiological ecology. This research project will address this specific challenge by explicitly tracking metabolic pathways, measuring their regulation and determining their taxonomic distribution in a suite of environmentally significant diatoms using a state of the art, species-specific approach. A research expedition is set in the North Atlantic, a system that plays a major role in carbon cycling. Starting with a New England coastal shelf site, samples will be collected from the coast where diatoms thrive, to the open ocean and a site of a long term ocean time series station (the Bermuda Atlantic Time Series) where diatom growth is muted by nutrient limitation. This research takes advantage of new ocean observatories initiative (OOI) and time series information. Through the research expedition and downstream laboratory experiments, the molecular pathways of nutrient metabolism and related gene expression in a suite of environmentally significant diatoms will be identified. Data will be combined to predict major limiting factors and potentially important substrates for diatoms across marine provinces. Importantly, this integrated approach takes advantage of new advances in molecular and bioinformatics tools to examine in situ physiological ecology at the species-specific level, a key knowledge gap in the field.</p>
North Atlantic Diatoms
largerWorkCitation
project
eng; USA
oceans
Western North Atlantic
-71.2761
-64.3812
29.0625
40.366
2017-05-04
2017-05-20
North Atlantic
0
BCO-DMO catalogue of parameters from Chlorophyll a concentrations along the cruise track of AR16 from May 2017 in the Sargasso Sea
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/775774.rdf
Name: datetime
Units: unitless
Description: <p>Date and time of incubation conclusion in UTC following ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/775775.rdf
Name: latitude
Units: decimal degrees
Description: <p>Latitude of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/775776.rdf
Name: longitude
Units: decimal degrees
Description: <p>Longitude of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/775777.rdf
Name: station
Units: unitless
Description: <p>Station of CTD cast</p>
http://lod.bco-dmo.org/id/dataset-parameter/775778.rdf
Name: cast
Units: unitless
Description: <p>CTD cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/775779.rdf
Name: size_fraction
Units: micrometers (um)
Description: <p>greater than size fraction analyzed based on pore size of filter</p>
http://lod.bco-dmo.org/id/dataset-parameter/775780.rdf
Name: depth
Units: meters (m)
Description: <p>depth of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/775781.rdf
Name: tube_no
Units: unitless
Description: <p>tube number</p>
http://lod.bco-dmo.org/id/dataset-parameter/775782.rdf
Name: vol_filtered
Units: milliliters (ml)
Description: <p>Volume of seawater filtered for chl a analysis</p>
http://lod.bco-dmo.org/id/dataset-parameter/775783.rdf
Name: vol_extracted
Units: milliliters (ml)
Description: <p>Volume of ethanol used to extract chla a</p>
http://lod.bco-dmo.org/id/dataset-parameter/775784.rdf
Name: Fb
Units: RFU
Description: <p>Fluorescence before acidification</p>
http://lod.bco-dmo.org/id/dataset-parameter/775785.rdf
Name: Fa
Units: RFU
Description: <p>Fluroescence after acidification</p>
http://lod.bco-dmo.org/id/dataset-parameter/775786.rdf
Name: Notes
Units: unitless
Description: <p>Notes regarding sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/775787.rdf
Name: blank_subt_Fb
Units: RFU
Description: <p>Blank corrected fluorescence before acidification</p>
http://lod.bco-dmo.org/id/dataset-parameter/775788.rdf
Name: blank_subt_Fa
Units: RFU
Description: <p>Blank corrected fluorescence after acidification</p>
http://lod.bco-dmo.org/id/dataset-parameter/775789.rdf
Name: chla
Units: micrograms per liter (ug/L)
Description: <p>Chlorophyll a concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/775790.rdf
Name: phaeo
Units: micrograms per liter (ug/L)
Description: <p>Phaeophytin concentration</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
https://osprey.bco-dmo.org/dataset/775766/data/download
download
onLine
dataset
<p>In situ Chlorophyll a was measured at each station along the AR16 cruise track. A CTD was deployed to collect water from the deep chlorophyll maximum and filtered in triplicate onto GF/F and 5µm polycarbonate filters.&nbsp;</p>
<p>Chl a was extracted from filters in 100% ethanol for 12 hours, measured on a 10-AU Fluorometer, and chlorophyll a and phaeophytin concentrations were calculated based on a predetermined calibration curve. Concentrations on each filter were used to determine total chl a within each size fraction.</p>
Specified by the Principal Investigator(s)
<p>Data was processed in R 3.4.1 (R-Core-Team 2017).</p>
<p>BCO-DMO Processing Notes:<br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- removed greater than symbol (&gt;) from size_fraction field.<br />
- reformatted date from mm/dd/yy HH:MM to yyyy-mm-ddTHH:MM:SS to conform with the ISO 8601 convention<br />
- converted the latitude and longitude fields from degrees decimal minutes to decimal degrees.</p>
<p>&nbsp;</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
10AU Fluorometer
10AU Fluorometer
PI Supplied Instrument Name: 10AU Fluorometer PI Supplied Instrument Description:Chl a was extracted from filters in 100% ethanol for 12 hours, measured on a 10-AU Fluorometer, and chlorophyll a and phaeophytin concentrations were calculated based on a predetermined calibration curve. Instrument Name: Turner Designs Fluorometer 10-AU Instrument Short Name:Turner Fluorometer 10-AU Instrument Description: The Turner Designs 10-AU Field Fluorometer is used to measure Chlorophyll fluorescence. The 10AU Fluorometer can be set up for continuous-flow monitoring or discrete sample analyses. A variety of compounds can be measured using application-specific optical filters available from the manufacturer (read more from Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA). Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/
Cruise: AR16
AR16
International Council for the Exploration of the Sea
R/V Neil Armstrong
vessel
AR16
Benjamin A.S. Van Mooy
Woods Hole Oceanographic Institution
International Council for the Exploration of the Sea
R/V Neil Armstrong
vessel