http://lod.bco-dmo.org/id/dataset/971975
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
2025-08-06
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Bulk tissue stable isotope analysis of zooplankton samples collected by MOCNESS from R/V Sally Ride and R/V Roger Revelle cruises in the southern California Current Ecosystem from 2020-2023
2025-08-22
publication
2025-08-22
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2025-08-26
publication
https://doi.org/10.26008/1912/bco-dmo.971975.1
C. Anela Choy
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: Chavarry, J., Choy, C. A. (2025) Bulk tissue stable isotope analysis of zooplankton samples collected by MOCNESS from R/V Sally Ride and R/V Roger Revelle cruises in the southern California Current Ecosystem from 2020-2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-08-22 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.971975.1 [access date]
Bulk SIA of gelatinous zooplankton Dataset Description: Methods and Sampling: <p>Gelatinous zooplankton were collected on four research cruises between 2020 and 2023 at seven stations representing four nearshore and escarpment, and two offshore regions within the Southern California Bight. We conducted depth‑discrete sampling of gelatinous zooplankton using a 10-square-meter (m²) Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) equipped with five depth-discrete nets (mesh sizes 5-millimeter (mm), Wiebe et al., 1985). The 10 m² MOCNESS was towed obliquely as the ship traveled at a speed between 1 to 2 knots, with depth-discrete collections occurring on the upcast. Sampling stations and depth intervals varied across stations and cruises, but there were typically two depth intervals sampled within the upper 500 meters (m) and larger depth intervals below 500 m. The maximum depth of sampling increased from 1,250 m nearshore to 3,000 m offshore, corresponding with the deepening of the water column.<br />
<br />
Upon recovery, samples were stored in chilled seawater and kept at 5 degrees Celsius (°C) until processing. All sample processing was performed on ice to preserve body condition. Gelatinous zooplankton were identified to the most specific taxonomic level using published keys. The concentration of carbon and/or nitrogen can be low in gelatinous individuals (Lüskow et al., 2021), so we pooled multiple gelatinous individuals into a single sample, while standardizing size ranges. Individuals within a taxonomic group were split into relative size classes. The minimum, median, and maximum lengths of individuals within each size class were recorded to the nearest millimeter. Bell diameter was measured for medusae, body diameter for ctenophores, and total length for pelagic tunicates, molluscs, and chaetognaths. The number of individuals per size class was counted and then weighed as a group to the nearest 0.01 gram (g) using a motion‑compensating scale (Marel M2400), which was routinely calibrated at sea following manufacturer instructions. Samples were stored in Whirl‑Paks at ‑80°C until further processing in the laboratory.<br />
<br />
561 samples of gelatinous zooplankton representing 13 taxonomic groups were chosen for bulk tissue stable carbon and nitrogen isotope analysis. Gelatinous zooplankton were briefly thawed to remove visible gut contents using forceps and a scalpel, which were cleaned with ethanol between samples. Both gelatinous zooplankton and mesozooplankton samples were then lyophilized and homogenized in Whirl‑Paks. To ensure sufficient sample mass for stable isotope analysis, samples often contained multiple individuals from the same net, taxonomic group, and size class. The number of individuals per sample was typically fewer than 100, with a larger number of individuals pooled for some samples of <em>Pantachogon</em> spp. and <em>Hormiphora</em> spp.<br />
<br />
Dried, homogenized tissues were packaged into tin capsules (1.5 to 4 milligrams (mg) per sample) for bulk tissue stable isotope analyses, which were conducted at the University of Hawaii at Manoa and the University of California Merced. Briefly, samples were run on a Costech 4010 Elemental Combustion System coupled to either a ThermoScientific DELTA V Advantage, ThermoScientific DELTA V+, or a ThermoFinnigan DeltaPlus XP isotope ratio mass spectrometer through a ThermoScientific Conflo IV interface. Stable isotope values are reported in the standard per mille notation (‰), compared to the standards atmospheric N₂and Vienna Pee Dee Belemnite for nitrogen and carbon, respectively. To ensure accuracy and instrument precision, both labs used a combination of international reference materials (from the United States Geological Survey or the National Institute of Standards and Technology) and in‑house reference materials (squid or tuna) with known δ15N and δ13C values. Based on analyzed reference materials, sample reproducibility was ± 0.2‰ for samples run at the University of Hawaii at Manoa, and sample reproducibility was ± 0.4‰ for samples run at UC Merced.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2048210 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2048210
completed
C. Anela Choy
University of California-San Diego Scripps
808-822-3020
Scripps Institution of Oceanography 9500 Gilman Drive, MC 0218
La Jolla
CA
92093
USA
anela@ucsd.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
specimen_number
phylum
genus
best_taxonomic_ID
tow
net
Date_UTC
year
month
day
specimen_count
EA_mass
nitrogen_ug
d15N_bulk
carbon_ug
d13C_bulk
sia_lab
SIA_reproducibility
length_type
median_length_mm
taxa_wmd_rounded_25_m
min_depth_m
max_depth_m
mean_depth_m
latitude
longitude
sampling_location
sampling_time
season
ThermoScientific Conflo IV interface
Costech 4010 Elemental Combustion System
ThermoFinnigan Deltaplus XP isotope ratio mass spectrometer
10 m2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS)
Marel M2400 motion compensating scale
ThermoScientific DELTA V Advantage isotope ratio mass spectrometer
ThermoScientific DELTA V+ isotope ratio mass spectrometer
theme
None, User defined
sample identification
phylum
genus
taxon
tow
net
date
year
month of year
day of month
count
mass
Nitrogen
d15N measured in biota
Elemental carbon (C)
d13C measured in biota
laboratory
No BCO-DMO term
length
depth
depth_min
depth_max
latitude
longitude
site
time_of_day
season
featureType
BCO-DMO Standard Parameters
Continuous Flow Interface for Mass Spectrometers
Costech International Elemental Combustion System (ECS) 4010
Isotope-ratio Mass Spectrometer
MOCNESS
scale or balance
Thermo Fisher Scientific DELTA V Advantage isotope ratio mass spectrometer
Thermo Fisher Scientific DELTA V Plus isotope ratio mass spectrometer
instrument
BCO-DMO Standard Instruments
SR2007
SR2212
SR2323
RR2104
service
Deployment Activity
Southern California Current Ecosystem
Eastern Tropical and Subtropical Pacific Ocean
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.
Resolving vertical trophic linkages between surface and deep pelagic food webs
https://osprey.bco-dmo.org/project/853408
Resolving vertical trophic linkages between surface and deep pelagic food webs
<p><em>NSF Award Abstract:</em><br />
This CAREER award is advancing our understanding of connections between surface and deep water ocean food webs, which in turn has important implications for carbon cycling in the ocean. Although marine ecosystems deeper than 200 m encompass Earth’s largest single habitat, the food web relationships of deep-sea organisms are poorly resolved. The investigator is evaluating active transport by fishes, squids, crustaceans, and gelatinous animals that move organic matter from the more productive surface into deeper waters through feeding and diel vertical migration. She is using a combination of data on abundance and distribution of species with measurements of stable isotope biomarkers to understand trophic relationships and connect community composition and migratory behavior with food-web processes in the southern California Current ecosystem. The investigator is from a group traditionally underrepresented in science, and she has designed a comprehensive educational plan to train a more diverse, inclusive generation of seagoing biological oceanographers through hands-on field and research experiences. In addition to providing support for graduate and undergraduate students to participate directly in this research, the investigator is creating a novel and cohesive undergraduate curriculum involving a seagoing laboratory course to teach interdisciplinary field methods to conduct research on pelagic ecosystems and a seminar course highlighting Native and Indigenous knowledge alongside more traditional oceanographic research. The overall goal is to broaden participation in science by combining hands-on interdisciplinary research, mentoring, and expanding networks of minority and majority scientists.</p>
<p>This study centers around Vinogradov’s “ladder of migrations” as a conceptual framework, with the goal of understanding cumulative downward transport of organisms and organic matter to the deep ocean by overlapping vertical migrations and feeding. It is focusing on the role of micronekton, defined as ~2-20 cm fishes, cephalopods, crustaceans, and gelatinous animals, as active transporters of surface-derived organic matter across epipelagic, mesopelagic, and upper-bathypelagic layers in the southern California Current Ecosystem. One research cruise is sampling deep pelagic micronekton communities comprehensively and systematically and complements long-term data collected in the surface waters of this ecosystem. Depth-discrete MOCNESS tows are sampling organisms to assess micronekton abundance, biomass, and extent of diel vertical migrations to understand how relative compositions of taxa drive vertical connectivity. Analysis of bulk carbon and nitrogen stable isotopes and compound-specific isotopic analyses of amino acids (AA-CSIA) in organism tissue are providing quantitative assessments of deep-pelagic food webs and measuring the relative strength and composition of trophic linkages between surface and deeper water assemblages across distinct environmental gradients.</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>
<p>This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).</p>
DeepSeaWebs
largerWorkCitation
project
eng; USA
oceans
Southern California Current Ecosystem; Eastern Tropical and Subtropical Pacific Ocean
-125
-118.33
30.13
33.79
2020-08-24
2023-10-25
Southern California Current
0
BCO-DMO catalogue of parameters from Bulk tissue stable isotope analysis of zooplankton samples collected by MOCNESS from R/V Sally Ride and R/V Roger Revelle cruises in the southern California Current Ecosystem from 2020-2023
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/983164.rdf
Name: specimen_number
Units: unitless
Description: <p>sample identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/983165.rdf
Name: phylum
Units: unitless
Description: <p>sample phylum</p>
http://lod.bco-dmo.org/id/dataset-parameter/983166.rdf
Name: genus
Units: unitless
Description: <p>sample genus</p>
http://lod.bco-dmo.org/id/dataset-parameter/983167.rdf
Name: best_taxonomic_ID
Units: unitless
Description: <p>the finest taxonomic level the gelatinous zooplankton were identified to</p>
http://lod.bco-dmo.org/id/dataset-parameter/983168.rdf
Name: tow
Units: unitless
Description: <p>the tow number when the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/983169.rdf
Name: net
Units: unitless
Description: <p>the net number when the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/983170.rdf
Name: Date_UTC
Units: unitless
Description: <p>date the sample was collected (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/983171.rdf
Name: year
Units: unitless
Description: <p>the year the sample was collected (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/983172.rdf
Name: month
Units: unitless
Description: <p>the month the sample was collected (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/983173.rdf
Name: day
Units: unitless
Description: <p>the day the sample was collected (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/983174.rdf
Name: specimen_count
Units: number of individuals
Description: <p>the number of individual gelatinous zooplankton in that sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/983175.rdf
Name: EA_mass
Units: milligrams
Description: <p>the mass of the dried sample analyzed on the elemental analyzer</p>
http://lod.bco-dmo.org/id/dataset-parameter/983176.rdf
Name: nitrogen_ug
Units: micrograms
Description: <p>the sample's nitrogen mass detected by the elemental analyzer</p>
http://lod.bco-dmo.org/id/dataset-parameter/983177.rdf
Name: d15N_bulk
Units: parts per thousand
Description: <p>nitrogen isotope ratio relative to atmospheric N2 detected by the isotope ratio mass spectrometer</p>
http://lod.bco-dmo.org/id/dataset-parameter/983178.rdf
Name: carbon_ug
Units: micrograms
Description: <p>the sample's carbon mass detected by the elemental analyzer</p>
http://lod.bco-dmo.org/id/dataset-parameter/983179.rdf
Name: d13C_bulk
Units: parts per thousand
Description: <p>carbon isotope ratio relative to Vienna Pee Dee Belemnite detected by the isotope ratio mass spectrometer</p>
http://lod.bco-dmo.org/id/dataset-parameter/983180.rdf
Name: sia_lab
Units: unitless
Description: <p>University of Hawaii at Manoa</p>
http://lod.bco-dmo.org/id/dataset-parameter/983181.rdf
Name: SIA_reproducibility
Units: parts per thousand
Description: <p>the reproducibility of the stable isotope ratio values, as reported by the stable isotope labs</p>
http://lod.bco-dmo.org/id/dataset-parameter/983182.rdf
Name: length_type
Units: unitless
Description: <p>the way the gelatinous zooplankton individuals were measured dependent on taxonomy, either bell diameter, body diameter, or total length</p>
http://lod.bco-dmo.org/id/dataset-parameter/983183.rdf
Name: median_length_mm
Units: millimeters
Description: <p>the median length of individuals in a sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/983184.rdf
Name: taxa_wmd_rounded_25_m
Units: meters
Description: <p>the weighted mean depth of the taxonomic grouping across all locations and sampling years, rounded to the nearest 25 m depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/983185.rdf
Name: min_depth_m
Units: meters
Description: <p>the minimum depth of collection for the net that collected the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/983186.rdf
Name: max_depth_m
Units: meters
Description: <p>the maximum depth of collection for the net that collected the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/983187.rdf
Name: mean_depth_m
Units: meters
Description: <p>the mean depth of collection for the net that collected the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/983188.rdf
Name: latitude
Units: decimal degrees
Description: <p>the latitude of where the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/983189.rdf
Name: longitude
Units: decimal degrees
Description: <p>the longitude of where the sample was collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/983190.rdf
Name: sampling_location
Units: unitless
Description: <p>the region within the southern California Current Ecosystem where the sample was collected, either "nearshore", "escarpment", or "offshore"</p>
http://lod.bco-dmo.org/id/dataset-parameter/983191.rdf
Name: sampling_time
Units: unitless
Description: <p>the time of sample collection, either "day" or "night"</p>
http://lod.bco-dmo.org/id/dataset-parameter/983192.rdf
Name: season
Units: unitless
Description: <p>the season of collection, either "summer" or "fall"</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
97752
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/5eb4a6e3-7e49-4761-b1fa-253287549a33/content
download
https://doi.org/10.26008/1912/bco-dmo.971975.1
download
onLine
dataset
<p>Gelatinous zooplankton were collected on four research cruises between 2020 and 2023 at seven stations representing four nearshore and escarpment, and two offshore regions within the Southern California Bight. We conducted depth‑discrete sampling of gelatinous zooplankton using a 10-square-meter (m²) Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) equipped with five depth-discrete nets (mesh sizes 5-millimeter (mm), Wiebe et al., 1985). The 10 m² MOCNESS was towed obliquely as the ship traveled at a speed between 1 to 2 knots, with depth-discrete collections occurring on the upcast. Sampling stations and depth intervals varied across stations and cruises, but there were typically two depth intervals sampled within the upper 500 meters (m) and larger depth intervals below 500 m. The maximum depth of sampling increased from 1,250 m nearshore to 3,000 m offshore, corresponding with the deepening of the water column.<br />
<br />
Upon recovery, samples were stored in chilled seawater and kept at 5 degrees Celsius (°C) until processing. All sample processing was performed on ice to preserve body condition. Gelatinous zooplankton were identified to the most specific taxonomic level using published keys. The concentration of carbon and/or nitrogen can be low in gelatinous individuals (Lüskow et al., 2021), so we pooled multiple gelatinous individuals into a single sample, while standardizing size ranges. Individuals within a taxonomic group were split into relative size classes. The minimum, median, and maximum lengths of individuals within each size class were recorded to the nearest millimeter. Bell diameter was measured for medusae, body diameter for ctenophores, and total length for pelagic tunicates, molluscs, and chaetognaths. The number of individuals per size class was counted and then weighed as a group to the nearest 0.01 gram (g) using a motion‑compensating scale (Marel M2400), which was routinely calibrated at sea following manufacturer instructions. Samples were stored in Whirl‑Paks at ‑80°C until further processing in the laboratory.<br />
<br />
561 samples of gelatinous zooplankton representing 13 taxonomic groups were chosen for bulk tissue stable carbon and nitrogen isotope analysis. Gelatinous zooplankton were briefly thawed to remove visible gut contents using forceps and a scalpel, which were cleaned with ethanol between samples. Both gelatinous zooplankton and mesozooplankton samples were then lyophilized and homogenized in Whirl‑Paks. To ensure sufficient sample mass for stable isotope analysis, samples often contained multiple individuals from the same net, taxonomic group, and size class. The number of individuals per sample was typically fewer than 100, with a larger number of individuals pooled for some samples of <em>Pantachogon</em> spp. and <em>Hormiphora</em> spp.<br />
<br />
Dried, homogenized tissues were packaged into tin capsules (1.5 to 4 milligrams (mg) per sample) for bulk tissue stable isotope analyses, which were conducted at the University of Hawaii at Manoa and the University of California Merced. Briefly, samples were run on a Costech 4010 Elemental Combustion System coupled to either a ThermoScientific DELTA V Advantage, ThermoScientific DELTA V+, or a ThermoFinnigan DeltaPlus XP isotope ratio mass spectrometer through a ThermoScientific Conflo IV interface. Stable isotope values are reported in the standard per mille notation (‰), compared to the standards atmospheric N₂and Vienna Pee Dee Belemnite for nitrogen and carbon, respectively. To ensure accuracy and instrument precision, both labs used a combination of international reference materials (from the United States Geological Survey or the National Institute of Standards and Technology) and in‑house reference materials (squid or tuna) with known δ15N and δ13C values. Based on analyzed reference materials, sample reproducibility was ± 0.2‰ for samples run at the University of Hawaii at Manoa, and sample reproducibility was ± 0.4‰ for samples run at UC Merced.</p>
Specified by the Principal Investigator(s)
- Imported original file "gelatinous_zooplankton_bulk_stable_isotopes.csv" into the BCO-DMO system.
- Created Date_UTC column in YYYY-MM-DD format.
- Saved final file as "971975_v1_bulk_sia_gelatinous_zooplankton.csv".
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
ThermoScientific Conflo IV interface
ThermoScientific Conflo IV interface
PI Supplied Instrument Name: ThermoScientific Conflo IV interface PI Supplied Instrument Description:used for the determination of stable isotope ratios of carbon and nitrogen Instrument Name: Continuous Flow Interface for Mass Spectrometers Instrument Short Name: Instrument Description: A Continuous Flow Interface connects solid and liquid sample preparation devices to instruments that measure isotopic composition. It allows the introduction of the sample and also reference and carrier gases.
Examples: Finnigan MATConFlo II, ThermoScientific ConFlo IV, and Picarro Caddy.
Note: This is NOT an analyzer
Costech 4010 Elemental Combustion System
Costech 4010 Elemental Combustion System
PI Supplied Instrument Name: Costech 4010 Elemental Combustion System PI Supplied Instrument Description:used for the determination of stable isotope ratios of carbon and nitrogen Instrument Name: Costech International Elemental Combustion System (ECS) 4010 Instrument Short Name:Costech ECS 4010 Instrument Description: The ECS 4010 Nitrogen / Protein Analyzer is an elemental combustion analyser for CHNSO elemental analysis and Nitrogen / Protein determination. The GC oven and separation column have a temperature range of 30-110 degC, with control of +/- 0.1 degC.
ThermoFinnigan Deltaplus XP isotope ratio mass spectrometer
ThermoFinnigan Deltaplus XP isotope ratio mass spectrometer
PI Supplied Instrument Name: ThermoFinnigan Deltaplus XP isotope ratio mass spectrometer PI Supplied Instrument Description:used for the determination of stable isotope ratios of carbon and nitrogen 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/
10 m2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS)
10 m2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS)
PI Supplied Instrument Name: 10 m2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) PI Supplied Instrument Description:used to collect gelatinous zooplankton at sea Instrument Name: MOCNESS Instrument Short Name:MOCNESS Instrument Description: The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974). (from MOCNESS manual) Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/NETT0097/
Marel M2400 motion compensating scale
Marel M2400 motion compensating scale
PI Supplied Instrument Name: Marel M2400 motion compensating scale PI Supplied Instrument Description:used to weigh gelatinous zooplankton at sea Instrument Name: scale or balance Instrument Short Name: Instrument Description: Devices that determine the mass or weight of a sample. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB13/
ThermoScientific DELTA V Advantage isotope ratio mass spectrometer
ThermoScientific DELTA V Advantage isotope ratio mass spectrometer
PI Supplied Instrument Name: ThermoScientific DELTA V Advantage isotope ratio mass spectrometer PI Supplied Instrument Description:used for the determination of stable isotope ratios of carbon and nitrogen Instrument Name: Thermo Fisher Scientific DELTA V Advantage isotope ratio mass spectrometer Instrument Short Name:Delta V Advantage Instrument Description: The Thermo Scientific DELTA V Advantage is an isotope ratio mass spectrometer designed to measure isotopic, elemental, and molecular ratios of organic and inorganic compounds. The DELTA V Advantage is the standard model of the DELTA V series of isotope ratio mass spectrometers, which can be upgraded to the DELTA V Plus. The DELTA V Advantage can be operated in Continuous Flow or Dual Inlet mode. The standard collector configuration is the Universal Triple Collector. H2 collectors with online hydrogen capability are optional. The DELTA V Advantage is controlled by an automated, integrated Isodat software suite. A magnet, whose pole faces determine the free flight space for the ions, eliminates the traditional flight tube. The magnet is designed for fast mass switching which is further supported by a fast jump control between consecutive measurements of multiple gases within one run. The sample gas is introduced at ground potential, eliminating the need for insulation of the flow path, ensuring 100 percent transfer into the ion source. The amplifiers register ion beams up to 50 V. The DELTA V Advantage has a sensitivity of 1200 molecules per ion (M/I) in Dual Inlet mode and 1500 M/I in Continuous Flow mode. It has a system stability of < 10 ppm and an effective magnetic detection radius of 191 nm. It has a mass range of 1 - 80 Dalton at 3 kV.
ThermoScientific DELTA V+ isotope ratio mass spectrometer
ThermoScientific DELTA V+ isotope ratio mass spectrometer
PI Supplied Instrument Name: ThermoScientific DELTA V+ isotope ratio mass spectrometer PI Supplied Instrument Description:used for the determination of stable isotope ratios of carbon and nitrogen Instrument Name: Thermo Fisher Scientific DELTA V Plus isotope ratio mass spectrometer Instrument Short Name:Delta V Plus IRMS Instrument Description: The Thermo Scientific DELTA V Plus is an isotope ratio mass spectrometer designed to measure isotopic, elemental and molecular ratios of organic and inorganic compounds. The DELTA V Plus is an enhanced model of the DELTA V series of isotope ratio mass spectrometers, which can be upgraded from the DELTA V Advantage. The DELTA V Plus can be operated in Continuous Flow or Dual Inlet mode and can accommodate up to 10 collectors, ensuring flexibility to cover many applications. The DELTA V Plus is controlled by an automated, integrated Isodat software suite. A magnet, whose pole faces determine the free flight space for the ions, eliminates the traditional flight tube. The magnet is designed for fast mass switching which is further supported by a fast jump control between consecutive measurements of multiple gases within one run. The sample gas is introduced at ground potential, eliminating the need for insulation of the flow path, ensuring 100 percent transfer into the ion source. The amplifiers register ion beams up to 50 V. The DELTA V Plus has refined optics, enabling greater ion transmission than the DELTA V Advantage. It has a sensitivity of 800 molecules per ion (M/I) in Dual Inlet mode and 1100 M/I in Continuous Flow mode. It has a system stability of < 10 ppm and an effective magnetic detection radius of 191 nm. It has a mass range of 1 - 96 Dalton at 3 kV.
Cruise: SR2007
SR2007
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
SR2007
C. Anela Choy
University of California-San Diego Scripps
Cruise: SR2212
SR2212
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
SR2212
C. Anela Choy
University of California-San Diego Scripps
Cruise: SR2323
SR2323
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
SR2323
C. Anela Choy
University of California-San Diego Scripps
Cruise: RR2104
RR2104
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel
RR2104
C. Anela Choy
University of California-San Diego
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
R/V Roger Revelle
Community Standard Description
International Council for the Exploration of the Sea
R/V Roger Revelle
vessel