http://lod.bco-dmo.org/id/dataset/905404
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
2023-08-01
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Size Fractionated Chlorophyll Measurements from R/V Tangaroa TAN1810 in the Chatham Rise (Subtropical and Sub-Antarctic waters off of New Zealand) from October to November 2018 (Salp Food Web Ecology project)
2023-08-01
publication
2023-08-01
revision
Woods Hole Oceanographic Institution (WHOI BCO-DMO)
2026-02-11
publication
https://doi.org/10.26008/1912/bco-dmo.905404.1
Andres Gutierrez Rodriguez
New Zealand National Institute of Water and Atmospheric Research
principalInvestigator
Michael R. Stukel
Florida State University
principalInvestigator
Natalia Yingling
Florida State University
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: Gutierrez Rodriguez, A., Stukel, M. R., Yingling, N. (2026) Size Fractionated Chlorophyll Measurements from R/V Tangaroa TAN1810 in the Chatham Rise (Subtropical and Sub-Antarctic waters off of New Zealand) from October to November 2018 (Salp Food Web Ecology project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-08-01 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.905404.1 [access date]
Methods and Sampling: <p><strong>Field Collection</strong></p>
<p>Data was collected in the Chatham Rise section of the Southern Ocean, located east of Aotearoa New Zealand, as part of the SALPOOP (‘Salp Particle expOrt and Ocean Production’) voyage during October to November 2018.&nbsp;). We conducted five Lagrangian experiments (hereafter referred to as “cycles”) that lasted four to eight days&nbsp;(Décima et al., 2023).&nbsp;There were three cycles that were sampled in SA waters (1, 2 and 5) and two cycles in ST waters (3 and 4) while salps were only present in three cycles (1, 2 and 4).&nbsp;Six depths were chosen to span the euphotic zone (based on chlorophyll fluorescence measured during the conductivity-temperature-depth (CTD) downcast profiles).</p>
<p><strong>Size Fractionated Chlorophyll&nbsp;<em>a</em>&nbsp;Measurements</strong></p>
<p>Samples for size fractionated chlorophyll&nbsp;<em>a</em>&nbsp;(SF Chl<em>a</em>)<em>&nbsp;</em>were analyzed by first gravity filtering a sample (250 mL) through a 20 µm 47-mm polycarbonate filter, then with low vacuum pressure, filtering sequentially through a 2 µm and a 0.2 µm filter. Filters were then folded, placed in 1.5 mL cryovials and frozen (-80 °C) until analysis (Gutiérrez‐Rodríguez et al., 2020). Chl<em>a</em>&nbsp;and acidified phaeopigment-a concentrations were measured (within 3 months) using ice-cold 90% acetone extraction by spectrofluorometric methods (APHA 10200 H) on a Varian Cary Eclipse fluorescence spectrophotometer (Rice et al., 2012).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1756465 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1756465
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1756610 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1756610
completed
Andres Gutierrez Rodriguez
New Zealand National Institute of Water and Atmospheric Research
andres.gutierrez@ieo.csic.es
pointOfContact
Michael R. Stukel
Florida State University
815-258-3875
Earth, Ocean, and Atmos. Science Building (EOA) Rm. 6089 1011 Academic Way
Tallahassee
FL
32306
USA
mstukel@fsu.edu
pointOfContact
Natalia Yingling
Florida State University
1011 Academic Way
Tallahassee
FL
USA
ny18b@fsu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cycle
Cast
Depth
Lat
Lon
Date
Chl_a_02
Chl_a_2
Chl_a_20
Summed_SF_Chl
Chl_a_02_percentage
Chl_a_2_percentage
Chl_a_20_percentage
Varian Cary Eclipse fluorescence spectrophotometer
theme
None, User defined
experiment id
cast
depth
latitude
longitude
date
chlorophyll a
featureType
BCO-DMO Standard Parameters
Spectrophotometer
instrument
BCO-DMO Standard Instruments
TAN1810
service
Deployment Activity
Chatham Rise (Subtropical and Sub-Antarctic waters off of New Zealand)
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: Quantifying trophic roles and food web ecology of salp blooms of the Chatham Rise
https://osprey.bco-dmo.org/project/754878
Collaborative Research: Quantifying trophic roles and food web ecology of salp blooms of the Chatham Rise
<p><em>NSF Award Abstract:</em><br />
Salps are unique open-ocean animals that range in size from a few millimeters to greater than twenty centimeters, have a gelatinous (jelly-like) body, and can form long chains of many connected individuals. These oceanic organisms act as oceanic vacuum cleaners, having incredibly high feeding rates on phytoplankton and, unusual for consumers of their size, smaller bacteria-sized prey. This rapid feeding and the salps' tendency to form dense blooms, allows them move substantial amounts of prey carbon from the surface into the deep ocean, leading to carbon dioxide removal from the atmosphere. However, salps are often considered a trophic dead-end, rather than a link, in the food web due to the assumption that they themselves are not consumed, since their gelatinous bodies are less nutritious than co-occurring crustacean prey. Along with this, salp populations are hypothesized to be increasing due to climate change. This proposal addresses these questions: 1) Do salps compete primarily with crustaceans (as in the prevailing paradigm) or are they competitors of single-celled protists, which are the dominant grazers of small phytoplankton? 2) Do salp blooms increase the efficiency of food-web pathways from tiny phytoplankton to fisheries production in nutrient-poor ocean regions?</p>
<p>This project will support the interdisciplinary education of a graduate student who will learn modeling and laboratory techniques in the fields of biological and chemical oceanography and stimulate international collaborations between scientists in the United States and New Zealand. Additionally, several Education and Outreach initiatives are planned, including development of a week-long immersive high school class in biological oceanography, and education modules that will serve the "scientists-in-the schools" program in Tallahassee, FL.</p>
<p>It is commonly assumed that salps are a trophic sink. However, this idea was developed before the discovery that protists (rather than crustaceans) are the dominant grazers in the open ocean and was biased by the difficulty of recognizing gelatinous salps in fish guts. More recent studies show that salps are found in guts of a diverse group of fish and seabirds and are a readily available prey source when crustacean abundance is low. This proposal seeks to quantify food web flows through contrasting salp-dominated and salp-absent water parcels near the Chatham Rise off western New Zealand where salp blooms are a predictable phenomenon. The proposal will leverage previously obtained data on salp abundance, bulk grazing impact, and biogeochemical significance during Lagrangian experiments conducted by New Zealand-based collaborators. The proposal will determine 1) taxon- and size-specific phytoplankton growth rate measurements, 2) taxon- and size-specific protozoan and salp grazing rate measurements, 3) compound specific isotopic analysis of the amino acids of mesozooplankton to quantify the trophic position of salps, hyperiid amphipods, and other crustaceans, 4) sediment traps to quantify zooplankton carcass sinking rates, and 5) linear inverse ecosystem modeling syntheses. Secondary production and trophic flows from this well-constrained ecosystem model will be compared to crustacean-dominated and microbial loop-dominated ecosystems in similarly characterized regions (California Current, Costa Rica Dome, and Gulf of Mexico).</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>
Salp Food Web Ecology
largerWorkCitation
project
eng; USA
oceans
Chatham Rise (Subtropical and Sub-Antarctic waters off of New Zealand)
174
180
-45
-42
2018-10-25
2018-11-19
East of New Zealand, Chatham Rise area
0
BCO-DMO catalogue of parameters from Size Fractionated Chlorophyll Measurements from R/V Tangaroa TAN1810 in the Chatham Rise (Subtropical and Sub-Antarctic waters off of New Zealand) from October to November 2018 (Salp Food Web Ecology 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
http://lod.bco-dmo.org/id/dataset-parameter/905422.rdf
Name: Cycle
Units: unitless
Description: <p>Lagrangian experiment number</p>
http://lod.bco-dmo.org/id/dataset-parameter/905423.rdf
Name: Cast
Units: unitless
Description: <p>CTD deployment number</p>
http://lod.bco-dmo.org/id/dataset-parameter/905424.rdf
Name: Depth
Units: meters
Description: <p>Depth the sample originated in meters</p>
http://lod.bco-dmo.org/id/dataset-parameter/905425.rdf
Name: Lat
Units: decimal degrees
Description: <p>Latitude in decimal degrees; a positive value indicates an Eastern coordinate</p>
http://lod.bco-dmo.org/id/dataset-parameter/905426.rdf
Name: Lon
Units: decimal degrees
Description: <p>Longitude in decimal degrees; a negative value indicates a Northern coordinate</p>
http://lod.bco-dmo.org/id/dataset-parameter/905427.rdf
Name: Date
Units: unitless
Description: <p>Date in New Zealand Standard time</p>
http://lod.bco-dmo.org/id/dataset-parameter/905428.rdf
Name: Chl_a_02
Units: mg/m^3
Description: <p>Chlorophyll concentration for the 0.2 µm filter</p>
http://lod.bco-dmo.org/id/dataset-parameter/905429.rdf
Name: Chl_a_2
Units: mg/m^3
Description: <p>Chlorophyll concentration for the 2 µm filter </p>
http://lod.bco-dmo.org/id/dataset-parameter/905430.rdf
Name: Chl_a_20
Units: mg/m^3
Description: <p>Chlorophyll concentration for the 20 µm filter</p>
http://lod.bco-dmo.org/id/dataset-parameter/905431.rdf
Name: Summed_SF_Chl
Units: mg/m^3
Description: <p>Total or summed chlorophyll concentration for the 0.2, 2 and 20 µm filter</p>
http://lod.bco-dmo.org/id/dataset-parameter/905432.rdf
Name: Chl_a_02_percentage
Units: unitless
Description: <p>Percentage of total summed chlorophyll represented by 0.2 µm cells</p>
http://lod.bco-dmo.org/id/dataset-parameter/905433.rdf
Name: Chl_a_2_percentage
Units: unitless
Description: <p>Percentage of total summed chlorophyll represented by 2 µm cells</p>
http://lod.bco-dmo.org/id/dataset-parameter/905434.rdf
Name: Chl_a_20_percentage
Units: unitless
Description: <p>Percentage of total summed chlorophyll represented by 20 µm cells</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://doi.org/10.26008/1912/bco-dmo.905404.1
download
onLine
dataset
<p><strong>Field Collection</strong></p>
<p>Data was collected in the Chatham Rise section of the Southern Ocean, located east of Aotearoa New Zealand, as part of the SALPOOP (‘Salp Particle expOrt and Ocean Production’) voyage during October to November 2018.&nbsp;). We conducted five Lagrangian experiments (hereafter referred to as “cycles”) that lasted four to eight days&nbsp;(Décima et al., 2023).&nbsp;There were three cycles that were sampled in SA waters (1, 2 and 5) and two cycles in ST waters (3 and 4) while salps were only present in three cycles (1, 2 and 4).&nbsp;Six depths were chosen to span the euphotic zone (based on chlorophyll fluorescence measured during the conductivity-temperature-depth (CTD) downcast profiles).</p>
<p><strong>Size Fractionated Chlorophyll&nbsp;<em>a</em>&nbsp;Measurements</strong></p>
<p>Samples for size fractionated chlorophyll&nbsp;<em>a</em>&nbsp;(SF Chl<em>a</em>)<em>&nbsp;</em>were analyzed by first gravity filtering a sample (250 mL) through a 20 µm 47-mm polycarbonate filter, then with low vacuum pressure, filtering sequentially through a 2 µm and a 0.2 µm filter. Filters were then folded, placed in 1.5 mL cryovials and frozen (-80 °C) until analysis (Gutiérrez‐Rodríguez et al., 2020). Chl<em>a</em>&nbsp;and acidified phaeopigment-a concentrations were measured (within 3 months) using ice-cold 90% acetone extraction by spectrofluorometric methods (APHA 10200 H) on a Varian Cary Eclipse fluorescence spectrophotometer (Rice et al., 2012).</p>
Specified by the Principal Investigator(s)
<p>Chl and acidified phaeopigment-a concentrations were measured in the lab (within 3 months) using an ice-cold 90% acetone extraction by spectrofluorometric methods (APHA 10200 H) on a Varian Cary Eclipse fluorescence spectrophotometer&nbsp;(Rice et al., 2012).</p>
Specified by the Principal Investigator(s)
Removed units from column headers.
Percent sign (%) replaced by "_percent" in column headers to remove special characters. Periods removed from float numeric values in column names; see parameter details for full information.
Dates converted from %m/%d/%y format to %Y-%m-%d format.
Latitude and longitude coordinates rounded to 6 decimal places.
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
Varian Cary Eclipse fluorescence spectrophotometer
Varian Cary Eclipse fluorescence spectrophotometer
PI Supplied Instrument Name: Varian Cary Eclipse fluorescence spectrophotometer PI Supplied Instrument Description:Chl and acidified phaeopigment-a concentrations were measured in the lab (within 3 months) using an ice-cold 90% acetone extraction by spectrofluorometric methods (APHA 10200 H) on a Varian Cary Eclipse fluorescence spectrophotometer (Rice et al., 2012). Instrument Name: Spectrophotometer Instrument Short Name:Spectrophotometer Instrument Description: An instrument used to measure the relative absorption of electromagnetic radiation of different wavelengths in the near infra-red, visible and ultraviolet wavebands by samples. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB20/
Cruise: TAN1810
TAN1810
Community Standard Description
International Council for the Exploration of the Sea
R/V Tangaroa
vessel
TAN1810
Moira Decima
New Zealand National Institute of Water and Atmospheric Research
Community Standard Description
International Council for the Exploration of the Sea
R/V Tangaroa
vessel