http://lod.bco-dmo.org/id/dataset/916958
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
2023-12-14
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Bulk stable isotopes from siphonophores collected during four research cruises on the R/V Wester Flyer in the California Current Ecosystem between 2019 and 2021
2024-01-11
publication
2024-01-11
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-01-12
publication
https://doi.org/10.26008/1912/bco-dmo.916958.1
C. Anela Choy
University of California-San Diego Scripps
principalInvestigator
Elizabeth D. Hetherington
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: Hetherington, E. D., Choy, C. A. (2024) Bulk stable isotopes from siphonophores collected during four research cruises on the R/V Wester Flyer in the California Current Ecosystem between 2019 and 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-01-11 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.916958.1 [access date]
Siphonophore bulk stable isotopes Dataset Description: Methods and Sampling: <p>Samples were collected in the central and southern California Current. Most samples were collected in the Monterey Bay region, but a subset of samples were collected in southern California in 2020 and 2021. Samples were collected from between 0 to 3,000 meters depth. Samples were collected on four cruises across three years. All cruises were on the R/V Western Flyer. Dr. Steven Haddock (haddock@mbari.org) was the Chief Scientist on all cruises. Cruises occurred in March 2019 (Cruise ID: WF0319), January 2020 (Cruise ID: WF0120), July 2020 (Cruise ID: WF0720), and July 2021 (Cruise ID: WF0721). Sample locations and dates are provided as columns in the data file.</p>
<p>Siphonophores were collected using three methods: (1) a remotely operated vehicle, (2) blue water diving, and (3) a midwater trawl.</p>
<p>(1) We used the Remotely Operated Vehicle (ROV) Doc Ricketts (<a href="https://www.mbari.org/technology/rov-doc-ricketts/" target="_blank">https://www.mbari.org/technology/rov-doc-ricketts/</a>) to collect siphonophores, which is an electro-hydraulic vehicle that operates between 200 and 4000 meters. The vehicle was fitted with high-definition video cameras, environmental data instrumentation (e.g. depth, temperature, salinity, and oxygen sensors), and suction and detritus samples to collect in-tact siphonophore specimens. ROV collections occurred during daylight hours.</p>
<p>(2) Siphonophores were collected by blue water diving between 0 and 20 meters during daylight hours. Blue water diving techniques followed the guidelines in the following publication: Haddock, Steven HD, and John N. Heine. "Scientific blue-water diving." (2005). From Haddock and Heine (2005): "In a typical blue-water dive, working divers are connected to a surface platform (and indirectly to each other) by tethers attached to a central hub, which is tended by a safety diver. This hub is connected to a down-line, providing a vertical point of reference. A surface float allows the divers to drift freely through the upper water-column, focusing on their work while the safety diver acts as a buddy for everyone."</p>
<p>(3) A Tucker Trawl with a frame area: 2 square meters (m²), mesh size: 500 micrometers (μm) was towed obliquely for ~2 hours between 900 meters and the surface at night.</p>
<p>Upon collection, siphonophores were identified to the finest taxonomic level, which was either genus or species. For some genera, there are likely undescribed and/or cryptic species (e.g., <em>Apolemia</em>) and for these taxa, genera-level identifications were used. All siphonophores were rinsed with DI water and frozen at -80°C until further processing. Siphonophore tissues were weighed, lyophilized, packaged into tin capsules for bulk isotope analysis, and analyzed at the University of Hawaii's Isotope Geochemistry Facility.</p>
<p>For bulk stable isotope analysis, siphonophore samples were analyzed using a Costech (Valencia, CA, USA) elemental combustion system coupled to a Thermo-Finnigan Delta XP isotope ratio mass spectrometer with N2 standard for nitrogen and Vienna Pee Dee Belemnite for carbon.</p>
<p>A subset of samples was selected for compound-specific isotope analysis of amino acids (CSIA-AA). CSIA-AA was also conducted at the University of Hawaii's Isotope Geochemistry Facility using acid hydrolysis followed by derivatization (see Popp et al. (2007) and Hannides et al. (2013) for details). The CSIA-AA data are available in a separate BCO-DMO dataset (see 'Related Datasets').</p>
<p><strong>Related Resources:<br />
</strong>Some of the siphonophores collected in this dataset were also used for metabarcoding. Those data are published Damian-Serrano, et al. (2022) (doi: <a href="http://dx.doi.org/10.1371/journal.pone.0267761" target="_blank">10.1371/journal.pone.0267761</a>)</p>
<p>Illumina sequencing data files can be found in the NCBI BioProject PRJNA733192 (<a href="https://www.ncbi.nlm.nih.gov/bioproject/733192" target="_blank">https://www.ncbi.nlm.nih.gov/bioproject/733192</a>)</p>
<p>Prey 18S reference database enhancement sequences are available in NCBI (accession numbers between <a href="https://www.ncbi.nlm.nih.gov/nuccore/MZ333540" target="_blank">MZ333540</a> - <a href="https://www.ncbi.nlm.nih.gov/nuccore/MZ333629" target="_blank">MZ333629</a>)</p>
<p>Other data, intermediary files, and all code can be found in the GitHub repository: <a href="https://github.com/dunnlab/siphweb_metabarcoding" target="_blank">https://github.com/dunnlab/siphweb_metabarcoding</a>&nbsp;(see DOI:&nbsp;<a href="http://doi.org/10.1371/journal.pone.0267761" target="_blank">doi.org/10.1371/journal.pone.0267761</a>)</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1829812 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1829812
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
Elizabeth D. Hetherington
University of California-San Diego Scripps
858-822-3020
9500 Gilman Drive #0218
La Jolla
CA
92093-0218
USA
ehetheri@ucsd.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Ship
Chief_Scientist
Cruise_Name
Year
Month
Family
Genus
Best_Taxonomic_ID
Depth_m
Latitude
Longitude
EAweight_mg
ug_C
d13C
ug_N
d15N
Costech (Valencia, CA, USA) elemental combustion system
Thermo-Finnigan Delta XP isotope ratio mass spectrometer
blue water diving
Remotely Operated Vehicle Doc Ricketts
Tucker Trawl
theme
None, User defined
ship
Chief Scientist name
Cruise identfier
year
month of year
family
genus
taxon
depth
latitude
longitude
mass
Elemental carbon (C)
d13C measured in biota
Nitrogen
d15N measured in biota
featureType
BCO-DMO Standard Parameters
Elemental Analyzer
Isotope-ratio Mass Spectrometer
Manual Biota Sampler
ROV Doc Ricketts
Tucker Trawl
instrument
BCO-DMO Standard Instruments
WF0319
WF0120
WF0720
WF0721
service
Deployment Activity
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: The effects of predator traits on the structure of oceanic food webs
https://osprey.bco-dmo.org/project/738543
Collaborative research: The effects of predator traits on the structure of oceanic food webs
<p>Food webs describe who eats whom, tracing the flow of energy from plants up to large animals. While many connections in food webs on land are quite familiar (lions eat antelope and antelope eat grass, for example), there are large gaps in our understanding of ocean food webs. Closing these gaps is critical to understanding how nutrients and energy move through ocean ecosystems, how organisms interact in the ocean, and how best to manage ocean resources. This project will study ocean food web structure with a focus on siphonophores, an abundant group of predators in the open ocean that range in length from less than an inch to more than one hundred feet. Siphonophores are closely related to corals and many jellyfish. They are known to be important predators within ocean food webs, but they are difficult to study because they live across great ocean depths and are gelatinous and fragile. The details of what they eat, as well as many other features of their biology, remain poorly known. This project will combine direct observations of feeding, genetic analysis of siphonophore gut contents, and stable isotope analyses to identify what different species of siphonophores eat. The team will also examine why they eat what they do. This will provide a new understanding of how the structure of food webs arise, aiding in our ability to predict future changes to food webs as the global climate shifts. Siphonophores feed in a very unique manner--they have highly specialized tentacles that are used solely for capturing prey--thus, the prey captured is determined largely by the anatomy and function of these tentacles. The project will describe these tentacles, reconstruct their evolutionary history, and investigate how evolutionary shifts in tentacle structure have led to changes in diet. This project will train one PhD student, one Master's student, a postdoc, and undergraduate students, including individuals of underrepresented groups. This project will support the production of scientifically rigorous yet engaging videos, foster the expansion of a citizen-science program, and create K-12 teaching modules. </p>
<p>This project will advance three scientific aims: First, it will identify the diet of a diverse range of siphonophores using DNA metabarcoding of gut contents and prey field, remotely operated vehicle (ROV) video of prey encounters, and stable isotope analysis. These approaches are highly complementary and allow for extensive cross validation. Second, the project will characterize the selectivity of siphonophore diets by comparing them to the relative prey abundances in the habitats of each of these species. Third, the project will characterize the structure of the siphonophore prey capture apparatus across species through detailed morphological analysis of their tentacles and nematocysts. These data will be integrated in an ecological and evolutionary framework to identify predator features associated with prey specialization. In a larger context, addressing these questions will advance our understanding of oceanic predation by revealing how evolutionary changes in predator selectivity correspond to evolutionary changes in habitat and feeding apparatus and how these changes shape current food web structure in the open ocean. We will test and refine an integrated approach to describing the structure and origin of food web topology, and evaluate the potential for phylogenetic relationships to explain prey selectivity. </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>
SiphWeb
largerWorkCitation
project
eng; USA
oceans
-125.038
-117.717
32.72
37.1967
2019-03-01
2021-07-31
North Pacific
0
BCO-DMO catalogue of parameters from Bulk stable isotopes from siphonophores collected during four research cruises on the R/V Wester Flyer in the California Current Ecosystem between 2019 and 2021
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/916990.rdf
Name: Ship
Units: unitless
Description: <p>Ship Name</p>
http://lod.bco-dmo.org/id/dataset-parameter/916991.rdf
Name: Chief_Scientist
Units: unitless
Description: <p>Chief Scientist Name</p>
http://lod.bco-dmo.org/id/dataset-parameter/916992.rdf
Name: Cruise_Name
Units: unitless
Description: <p>Cruise name, where the format is the ship's initials (e.g., WF for Western Flyer) followed by MMYY (month and year)</p>
http://lod.bco-dmo.org/id/dataset-parameter/916993.rdf
Name: Year
Units: unitless
Description: <p>Year of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/916994.rdf
Name: Month
Units: unitless
Description: <p>Month of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/916995.rdf
Name: Family
Units: unitless
Description: <p>Taxonomic family of specimen</p>
http://lod.bco-dmo.org/id/dataset-parameter/916996.rdf
Name: Genus
Units: unitless
Description: <p>Taxonomic genus of specimen</p>
http://lod.bco-dmo.org/id/dataset-parameter/916997.rdf
Name: Best_Taxonomic_ID
Units: unitless
Description: <p>Best taxonomic identification of specimen, usually at the genus or species level</p>
http://lod.bco-dmo.org/id/dataset-parameter/916998.rdf
Name: Depth_m
Units: meters (m)
Description: <p>collection depth; trawl sample depths were the midpoint depths of the trawl, all blue water diving samples were assigned a depth of 10m, which was the average of dive depths; specimens collected with the ROV have discrete collection depths</p>
http://lod.bco-dmo.org/id/dataset-parameter/916999.rdf
Name: Latitude
Units: decimal degrees
Description: <p>latitude of sample collection (positive values = North)</p>
http://lod.bco-dmo.org/id/dataset-parameter/917000.rdf
Name: Longitude
Units: decimal degrees
Description: <p>longitude of sample collection (negative values = West)</p>
http://lod.bco-dmo.org/id/dataset-parameter/917001.rdf
Name: EAweight_mg
Units: milligrams (mg)
Description: <p>mass of the sample analyzed on the Elemental Analyzer</p>
http://lod.bco-dmo.org/id/dataset-parameter/917002.rdf
Name: ug_C
Units: micrograms (ug)
Description: <p>mass of carbon detected in the sample by the elemental analyzer</p>
http://lod.bco-dmo.org/id/dataset-parameter/917003.rdf
Name: d13C
Units: parts per thousand
Description: <p>carbon isotope values relative to the international standard Vienna Pee Dee Belemnite</p>
http://lod.bco-dmo.org/id/dataset-parameter/917004.rdf
Name: ug_N
Units: micrograms (ug)
Description: <p>mass of nitrogen detected in the sample by the elemental analyzer</p>
http://lod.bco-dmo.org/id/dataset-parameter/917005.rdf
Name: d15N
Units: parts per thousand
Description: <p>nitrogen isotope values relative to the international standard N2</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
14488
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/3d6d5e11-15b0-4a53-acdd-38aa3a235dae/content
download
https://doi.org/10.26008/1912/bco-dmo.916958.1
download
onLine
dataset
<p>Samples were collected in the central and southern California Current. Most samples were collected in the Monterey Bay region, but a subset of samples were collected in southern California in 2020 and 2021. Samples were collected from between 0 to 3,000 meters depth. Samples were collected on four cruises across three years. All cruises were on the R/V Western Flyer. Dr. Steven Haddock (haddock@mbari.org) was the Chief Scientist on all cruises. Cruises occurred in March 2019 (Cruise ID: WF0319), January 2020 (Cruise ID: WF0120), July 2020 (Cruise ID: WF0720), and July 2021 (Cruise ID: WF0721). Sample locations and dates are provided as columns in the data file.</p>
<p>Siphonophores were collected using three methods: (1) a remotely operated vehicle, (2) blue water diving, and (3) a midwater trawl.</p>
<p>(1) We used the Remotely Operated Vehicle (ROV) Doc Ricketts (<a href="https://www.mbari.org/technology/rov-doc-ricketts/" target="_blank">https://www.mbari.org/technology/rov-doc-ricketts/</a>) to collect siphonophores, which is an electro-hydraulic vehicle that operates between 200 and 4000 meters. The vehicle was fitted with high-definition video cameras, environmental data instrumentation (e.g. depth, temperature, salinity, and oxygen sensors), and suction and detritus samples to collect in-tact siphonophore specimens. ROV collections occurred during daylight hours.</p>
<p>(2) Siphonophores were collected by blue water diving between 0 and 20 meters during daylight hours. Blue water diving techniques followed the guidelines in the following publication: Haddock, Steven HD, and John N. Heine. "Scientific blue-water diving." (2005). From Haddock and Heine (2005): "In a typical blue-water dive, working divers are connected to a surface platform (and indirectly to each other) by tethers attached to a central hub, which is tended by a safety diver. This hub is connected to a down-line, providing a vertical point of reference. A surface float allows the divers to drift freely through the upper water-column, focusing on their work while the safety diver acts as a buddy for everyone."</p>
<p>(3) A Tucker Trawl with a frame area: 2 square meters (m²), mesh size: 500 micrometers (μm) was towed obliquely for ~2 hours between 900 meters and the surface at night.</p>
<p>Upon collection, siphonophores were identified to the finest taxonomic level, which was either genus or species. For some genera, there are likely undescribed and/or cryptic species (e.g., <em>Apolemia</em>) and for these taxa, genera-level identifications were used. All siphonophores were rinsed with DI water and frozen at -80°C until further processing. Siphonophore tissues were weighed, lyophilized, packaged into tin capsules for bulk isotope analysis, and analyzed at the University of Hawaii's Isotope Geochemistry Facility.</p>
<p>For bulk stable isotope analysis, siphonophore samples were analyzed using a Costech (Valencia, CA, USA) elemental combustion system coupled to a Thermo-Finnigan Delta XP isotope ratio mass spectrometer with N2 standard for nitrogen and Vienna Pee Dee Belemnite for carbon.</p>
<p>A subset of samples was selected for compound-specific isotope analysis of amino acids (CSIA-AA). CSIA-AA was also conducted at the University of Hawaii's Isotope Geochemistry Facility using acid hydrolysis followed by derivatization (see Popp et al. (2007) and Hannides et al. (2013) for details). The CSIA-AA data are available in a separate BCO-DMO dataset (see 'Related Datasets').</p>
<p><strong>Related Resources:<br />
</strong>Some of the siphonophores collected in this dataset were also used for metabarcoding. Those data are published Damian-Serrano, et al. (2022) (doi: <a href="http://dx.doi.org/10.1371/journal.pone.0267761" target="_blank">10.1371/journal.pone.0267761</a>)</p>
<p>Illumina sequencing data files can be found in the NCBI BioProject PRJNA733192 (<a href="https://www.ncbi.nlm.nih.gov/bioproject/733192" target="_blank">https://www.ncbi.nlm.nih.gov/bioproject/733192</a>)</p>
<p>Prey 18S reference database enhancement sequences are available in NCBI (accession numbers between <a href="https://www.ncbi.nlm.nih.gov/nuccore/MZ333540" target="_blank">MZ333540</a> - <a href="https://www.ncbi.nlm.nih.gov/nuccore/MZ333629" target="_blank">MZ333629</a>)</p>
<p>Other data, intermediary files, and all code can be found in the GitHub repository: <a href="https://github.com/dunnlab/siphweb_metabarcoding" target="_blank">https://github.com/dunnlab/siphweb_metabarcoding</a>&nbsp;(see DOI:&nbsp;<a href="http://doi.org/10.1371/journal.pone.0267761" target="_blank">doi.org/10.1371/journal.pone.0267761</a>)</p>
Specified by the Principal Investigator(s)
- Imported original file "Siphonophore bulk stable isotope data (NSF Project Number 1829812).csv" into the BCO-DMO system.
- Marked 'NA' as a missing data value (missing data are blank/empty in the final CSV file).
- Renamed fields to comply with BCO-DMO naming conventions.
- Saved the final file as "916958_v1_siphonophore_bulk_stable_isotopes.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
Costech (Valencia, CA, USA) elemental combustion system
Costech (Valencia, CA, USA) elemental combustion system
PI Supplied Instrument Name: Costech (Valencia, CA, USA) elemental combustion system PI Supplied Instrument Description:For bulk stable isotope analysis, siphonophore samples were analyzed using a Costech (Valencia, CA, USA) elemental combustion system coupled to a Thermo-Finnigan Delta XP isotope ratio mass spectrometer with N2 standard for nitrogen and Vienna Pee Dee Belemnite for carbon. Instrument Name: Elemental Analyzer Instrument Short Name: Instrument Description: Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB01/
Thermo-Finnigan Delta XP isotope ratio mass spectrometer
Thermo-Finnigan Delta XP isotope ratio mass spectrometer
PI Supplied Instrument Name: Thermo-Finnigan Delta XP isotope ratio mass spectrometer PI Supplied Instrument Description:For bulk stable isotope analysis, siphonophore samples were analyzed using a Costech (Valencia, CA, USA) elemental combustion system coupled to a Thermo-Finnigan Delta XP isotope ratio mass spectrometer with N2 standard for nitrogen and Vienna Pee Dee Belemnite for carbon. 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/
blue water diving
blue water diving
PI Supplied Instrument Name: blue water diving PI Supplied Instrument Description:Siphonophores were collected by blue water diving between 0-20 meters during daylight hours. Blue water diving techniques following the guidelines in the following publication: Haddock, Steven HD, and John N. Heine. "Scientific blue-water diving." (2005). Instrument Name: Manual Biota Sampler Instrument Short Name:Manual Biota Sampler Instrument Description: "Manual Biota Sampler" indicates that a sample was collected in situ by a person, possibly using a hand-held collection device such as a jar, a net, or their hands. This term could also refer to a simple tool like a hammer, saw, or other hand-held tool. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/90/
Remotely Operated Vehicle Doc Ricketts
Remotely Operated Vehicle Doc Ricketts
PI Supplied Instrument Name: Remotely Operated Vehicle Doc Ricketts PI Supplied Instrument Description:We used the Remotely Operated Vehicle Doc Ricketts (https://www.mbari.org/technology/rov-doc-ricketts/) to collect siphonophores, which is an electro-hydraulic vehicle that operates between 200 and 4000 meters. The vehicle was fitted with high-definition video cameras, environmental data instrumentation (e.g. depth, temperature, salinity, and oxygen sensors), and suction and detritus samples to collect in-tact siphonophore specimens. ROV collections occurred during daylight hours. Instrument Name: ROV Doc Ricketts Instrument Short Name:Doc Ricketts Instrument Description: The remotely operated vehicle (ROV) Doc Ricketts is operated by the Monterey Bay Aquarium Research Institute (MBARI). ROV Doc Ricketts is capable of diving to 4000 meters (about 2.5 miles). The R/V Western Flyer is the support vessel for Doc Ricketts and was designed with a center well whose floor can be opened to allow Doc Ricketts to be launched from within the ship into the water below. For a complete description, see: https://www.mbari.org/at-sea/vehicles/remotely-operated-vehicles/rov-doc-ricketts/
Tucker Trawl
Tucker Trawl
PI Supplied Instrument Name: Tucker Trawl PI Supplied Instrument Description:A Tucker Trawl with a frame area of 2 square meters and a mesh size of 500 micrometers was towed obliquely for ~2h hours between 900 meters and the surface at night. Instrument Name: Tucker Trawl Instrument Short Name:Tucker Trawl Instrument Description: The original Tucker Trawl, a net with a rectangular mouth opening first built in 1951 by G.H. Tucker, was not an opening/closing system, but shortly thereafter it was modified so that it could be opened and closed. The original had a 183 cm by 183 cm flexible rectangular mouth opening 914 cm long net with 1.8 cm stretched mesh for the first 457 cm and 1.3 cm mesh for last 457 cm. 152 cm of coarse plankton or muslin netting lined the end of the net. Tucker designed the net to collect animals associated with the deep scattering layers, principally euphausiids, siphonophores, and midwater fish. (from Wiebe and Benfield, 2003). Currently used Tucker Trawls usually have 1-m2 openings and can have a single net or multiple nets on the frame. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/NETT0161/
Cruise: WF0319
WF0319
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel
WF0319
Steven H. D. Haddock
Monterey Bay Aquarium Research Institute
Cruise: WF0120
WF0120
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel
WF0120
Steven H. D. Haddock
Monterey Bay Aquarium Research Institute
Cruise: WF0720
WF0720
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel
WF0720
Steven H. D. Haddock
Monterey Bay Aquarium Research Institute
Cruise: WF0721
WF0721
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel
WF0721
Steven H. D. Haddock
Monterey Bay Aquarium Research Institute
R/V Western Flyer
International Council for the Exploration of the Sea
R/V Western Flyer
vessel