http://lod.bco-dmo.org/id/dataset/982626
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
2025-08-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Particle counts for BioSWOT-Med Zooglider deployment in the Northwestern Mediterranean Sea, March-May 2023
2025-08-13
publication
2025-08-13
revision
Woods Hole Oceanographic Institution (WHOI BCO-DMO)
2026-01-09
publication
https://doi.org/10.26008/1912/bco-dmo.982626.1
Mark D. Ohman
University of California-San Diego Scripps
principalInvestigator
Jeffrey S. Ellen
Naval Information Warfare Center Pacific
principalInvestigator
Sven Gastauer
Thünen Institute of Sea Fisheries
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: Ohman, M. D., Gastauer, S., Ellen, J. S. (2026) Particle counts for BioSWOT-Med Zooglider deployment in the Northwestern Mediterranean Sea, March-May 2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-08-13 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.982626.1 [access date]
Particle counts, Zooglider BioSWOT-Med Dataset Description: <p>This dataset is part of a larger collaborative study called BIOSWOT-Med in the Northwestern Mediterranean Sea. The Scripps Zooglider was deployed in collaboration with a French-led team aboard the R/V L'Atalante from March to May 2023.</p>
<p>Data from the Zooglider mission include: CTD, Zonar, Particle counts from Zoocam images and Zooglider dive record data (see related datasets).</p> Methods and Sampling: <p>Data were acquired in 351 <em>Zooglider</em> dive profiles in the Northwestern Mediterranean, usually from approximately 420 m depth to the sea surface.&nbsp; These dives are numbered 1-314 and 353-389.&nbsp; The intervening numbers (315-353) refer to time periods when the <em>Zooglider</em> was in transit onboard R/V L’Atalante, during which time no in situ data were acquired.&nbsp; CTD and Chl-<em>a</em> fluorometer data were recorded on all dives when <em>Zooglider</em> was immersed.&nbsp; &nbsp;Zonar data were not acquired on odd-numbered dives from 47-241 (inclusive).&nbsp; Zoocam (shadowgraph imaging) data were acquired on a total of 115 dives (dives 1-8, 245-314, and 353-389).&nbsp; The Zoocam was powered off during intervening dives in order to conserve memory storage.</p>
<p><em>Zooglider</em> was moving at approximately 15 cm s-1 horizontally and 10 cm s-1 vertically while sampling, at an average angle of 16-18° off the horizontal.&nbsp; All sampling was done only on the <em>Zooglider</em> ascents.&nbsp; During descents, ultraviolet LEDs were powered intermittently and wipers activated to remove any biofouling materials on the optical surfaces.</p>
<p>Zoocam sampling was conducted at 1 Hz.&nbsp; The Zoocam has an image volume of 250 mL, illuminated by red light centered at 620-630 nm.&nbsp;</p>
<p>Sampling details may be found in Ohman et al. (2019). The parallel BIOSWOT-Med sampling program aboard the French research vessel <em>L’Atalante</em>,<em> </em>including other autonomous instruments is described in&nbsp;Doglioli and Gérald. (2023) (see related publications).&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2243190 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2243190
completed
Mark D. Ohman
University of California-San Diego Scripps
619-534-2754
Scripps Institution of Oceanography 0218 University of California, San Diego 9500 Gilman Drive
La Jolla
CA
92093-0218
USA
mohman@ucsd.edu
pointOfContact
Jeffrey S. Ellen
Naval Information Warfare Center Pacific
jeffrey.s.ellen.civ@us.navy.mil
pointOfContact
Sven Gastauer
Thünen Institute of Sea Fisheries
Herwigstraße 31
Bremerhaven
27572
Germany
sven.gastauer@gmail.com
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Dive_number
latitude_mid_ascent_75
longitude_mid_ascent_75
ISO_DateTime_UTC
Pressure
Particles_0_25mm_0_45mm
Acantharia
Appendicularians_w_House
Appendicularians_without_House
Ceratium
Chaetognaths
Cladocerans
Collodaria
Comets
Copepods_Oithona
Copepods_Others
Ctenophores
Diatoms_high_concentrations
Doliolids_Salps
Ephyrae
Euphausiids
Fluffs
Foraminifera
Hydromedusae
Nauplii_and_Calyptopis
Ostracods
Phaeodarians
Polychaetes
Pteropods
Pteropods_Cymbuliids
Siphonophores
Non_Identified_Particles_ECD_GT_0_451mm
Total_Particles_ECD_GT_0_451mm
Zoocam shadowgraph optical imaging system
theme
None, User defined
deployment number
latitude
longitude
date
water pressure
abundance
featureType
BCO-DMO Standard Parameters
Underwater Camera
Zooglider
instrument
BCO-DMO Standard Instruments
BioSWOT-Med
service
Deployment Activity
Northwestern Mediterranean Sea
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.
Zooglider assessment of zooplankton frontal gradients across the BIOSWOT-Med region
https://osprey.bco-dmo.org/project/920991
Zooglider assessment of zooplankton frontal gradients across the BIOSWOT-Med region
<p><em><strong>NSF Award Abstract:</strong></em><br />
Ocean fronts are regions of sharp horizontal discontinuities that can alter phytoplankton growth rates and community composition, zooplankton distributions and grazing activity, and predator foraging success. This study is using Zooglider, an autonomous ocean sampler equipped with a range of sensors and capitalizing on a unique opportunity to investigate frontal gradients and plankton communities in the western Mediterranean Sea. It is timed to coincide with a rapid crossover phase of a new NASA satellite mission. The combination of satellite and field-collected data will provide high resolution of the bio-physical consequences of oceanic frontal processes. The project incorporates training for graduate and undergraduate students as well as public outreach. Results are broadly communicated by partnering with a major public aquarium that serves 450,000 visitors per year, including by exhibiting novel porcelain ‘Zooware’ meant to convey the sensory experience of exploring the ocean’s planktonic fauna.</p>
<p>This project focuses on advancing understanding of frontal processes in the western Mediterranean Sea, at a ‘crossover’ site where NASA’s new Surface Water Ocean Topography (SWOT) satellite is making high-frequency sea surface height measurements using a high-resolution sensor. Measurements from the SWOT satellite are resolving small changes in sea-surface height, making it possible to follow the development and temporal progression of ocean frontal systems. The investigator is assessing the consequences of these frontal systems by testing the hypotheses that 1) zooplankton, marine snow particles, and predators are altered in these ocean frontal regions with a size-dependent or trait-dependent response; 2) particle-grazing zooplankton are more closely associated with layers of marine snow than with layers of living phytoplankton; 3) vertical thin layers of zooplankton are more likely to form in frontal than non-frontal regions; and 4) higher predators such as zooplanktivorous fish and marine mammals are more detectable in frontal regions The project makes use of an autonomous ocean instrument, the Zooglider. It includes a shadowgraph imaging Zoocam for resolving zooplankton and marine snow; a dual frequency Zonar to resolve mesozooplankton and larger sources of acoustic backscatter; and a sensitive hydrophone for recording ambient sounds, especially from marine mammals and fishes. These autonomous measurements are coordinated with complementary measurements from a ship-based sampling program, other autonomous vehicles, and satellite remote sensing.</p>
BIOSWOT-Med
largerWorkCitation
project
eng; USA
oceans
Northwestern Mediterranean Sea
2.53681
5.40935
39.32042
40.98484
2023-03-30
2023-05-08
NW Mediterranean Sea
0
BCO-DMO catalogue of parameters from Particle counts for BioSWOT-Med Zooglider deployment in the Northwestern Mediterranean Sea, March-May 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/983282.rdf
Name: Dive_number
Units: unitless
Description: <p>Sequence of Zooglider dives</p>
http://lod.bco-dmo.org/id/dataset-parameter/983283.rdf
Name: latitude_mid_ascent_75
Units: decimal degrees
Description: <p>Latitude of mid-point of dive during ascent, north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/983284.rdf
Name: longitude_mid_ascent_75
Units: decimal degrees
Description: <p>Longitude of mid-point of dive during ascent, east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/983285.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Datetime of sampling (UTC time zone, ISO format)</p>
http://lod.bco-dmo.org/id/dataset-parameter/983287.rdf
Name: Pressure
Units: decibars
Description: <p>Pressure below the sea surface</p>
http://lod.bco-dmo.org/id/dataset-parameter/983288.rdf
Name: Particles_0_25mm_0_45mm
Units: Number/liter
Description: <p>Concentration of particles between 0.25-0.45 mm Equivalent Circular Diameter</p>
http://lod.bco-dmo.org/id/dataset-parameter/983289.rdf
Name: Acantharia
Units: Number/Liter
Description: <p>Concentration of Acantharians</p>
http://lod.bco-dmo.org/id/dataset-parameter/983290.rdf
Name: Appendicularians_w_House
Units: Number/Liter
Description: <p>Concentration of Appendicularians with a visible House</p>
http://lod.bco-dmo.org/id/dataset-parameter/983291.rdf
Name: Appendicularians_without_House
Units: Number/Liter
Description: <p>Concentration of Appendicularians without a visible House</p>
http://lod.bco-dmo.org/id/dataset-parameter/983292.rdf
Name: Ceratium
Units: Number/Liter
Description: <p>Concentration of the dinoflagellae Ceratium</p>
http://lod.bco-dmo.org/id/dataset-parameter/983293.rdf
Name: Chaetognaths
Units: Number/Liter
Description: <p>Concentration of Chaetognaths</p>
http://lod.bco-dmo.org/id/dataset-parameter/983294.rdf
Name: Cladocerans
Units: Number/Liter
Description: <p>Concentration of Cladocerans</p>
http://lod.bco-dmo.org/id/dataset-parameter/983295.rdf
Name: Collodaria
Units: Number/Liter
Description: <p>Concentration of Collodaria</p>
http://lod.bco-dmo.org/id/dataset-parameter/983296.rdf
Name: Comets
Units: Number/Liter
Description: <p>Concentration of unknown particles with comet-like shape</p>
http://lod.bco-dmo.org/id/dataset-parameter/983297.rdf
Name: Copepods_Oithona
Units: Number/Liter
Description: <p>Concentration of Oithona copepods</p>
http://lod.bco-dmo.org/id/dataset-parameter/983298.rdf
Name: Copepods_Others
Units: Number/Liter
Description: <p>Concentration of Copepods other than Oithona</p>
http://lod.bco-dmo.org/id/dataset-parameter/983299.rdf
Name: Ctenophores
Units: Number/Liter
Description: <p>Concentration of Ctenophores</p>
http://lod.bco-dmo.org/id/dataset-parameter/983300.rdf
Name: Diatoms_high_concentrations
Units: Number/Liter
Description: <p>Frames containing diatoms at very high concentrations</p>
http://lod.bco-dmo.org/id/dataset-parameter/983301.rdf
Name: Doliolids_Salps
Units: Number/Liter
Description: <p>Concentration of Doliolids plus Salps</p>
http://lod.bco-dmo.org/id/dataset-parameter/983302.rdf
Name: Ephyrae
Units: Number/Liter
Description: <p>Concentration of Scyphozoan ephyrae</p>
http://lod.bco-dmo.org/id/dataset-parameter/983303.rdf
Name: Euphausiids
Units: Number/Liter
Description: <p>Concentration of Euphausiids and possibly some Decapods</p>
http://lod.bco-dmo.org/id/dataset-parameter/983304.rdf
Name: Fluffs
Units: Number/Liter
Description: <p>Concentration of unknow paticles with fluff-like geometry</p>
http://lod.bco-dmo.org/id/dataset-parameter/983305.rdf
Name: Foraminifera
Units: Number/Liter
Description: <p>Concentration of Foraminifera</p>
http://lod.bco-dmo.org/id/dataset-parameter/983306.rdf
Name: Hydromedusae
Units: Number/Liter
Description: <p>Concentration of Hydromedusae</p>
http://lod.bco-dmo.org/id/dataset-parameter/983307.rdf
Name: Nauplii_and_Calyptopis
Units: Number/Liter
Description: <p>Concentration of Nauplii plus Calyptopis stages</p>
http://lod.bco-dmo.org/id/dataset-parameter/983308.rdf
Name: Ostracods
Units: Number/Liter
Description: <p>Concentration of Ostracods</p>
http://lod.bco-dmo.org/id/dataset-parameter/983309.rdf
Name: Phaeodarians
Units: Number/Liter
Description: <p>Concentration of Phaeodarians</p>
http://lod.bco-dmo.org/id/dataset-parameter/983310.rdf
Name: Polychaetes
Units: Number/Liter
Description: <p>Concentration of Polychaetes</p>
http://lod.bco-dmo.org/id/dataset-parameter/983311.rdf
Name: Pteropods
Units: Number/Liter
Description: <p>Concentration of Pteropods (excluding cymbuliid pteropods), and possibly some Atlantid heteropods</p>
http://lod.bco-dmo.org/id/dataset-parameter/983312.rdf
Name: Pteropods_Cymbuliids
Units: Number/Liter
Description: <p>Concentration of Cymbuliid Pteropods</p>
http://lod.bco-dmo.org/id/dataset-parameter/983313.rdf
Name: Siphonophores
Units: Number/Liter
Description: <p>Concentration of Siphonophores</p>
http://lod.bco-dmo.org/id/dataset-parameter/983314.rdf
Name: Non_Identified_Particles_ECD_GT_0_451mm
Units: Number/image frame
Description: <p>Concentration of particles larger than 0.451 mm Equivalent Circular Diameter that were not identified</p>
http://lod.bco-dmo.org/id/dataset-parameter/983315.rdf
Name: Total_Particles_ECD_GT_0_451mm
Units: Number/image frame
Description: <p>Concentration of total particles larger than 0.451 mm Equivalent Circular Diameter</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.982626.1
download
onLine
dataset
<p>Data were acquired in 351 <em>Zooglider</em> dive profiles in the Northwestern Mediterranean, usually from approximately 420 m depth to the sea surface.&nbsp; These dives are numbered 1-314 and 353-389.&nbsp; The intervening numbers (315-353) refer to time periods when the <em>Zooglider</em> was in transit onboard R/V L’Atalante, during which time no in situ data were acquired.&nbsp; CTD and Chl-<em>a</em> fluorometer data were recorded on all dives when <em>Zooglider</em> was immersed.&nbsp; &nbsp;Zonar data were not acquired on odd-numbered dives from 47-241 (inclusive).&nbsp; Zoocam (shadowgraph imaging) data were acquired on a total of 115 dives (dives 1-8, 245-314, and 353-389).&nbsp; The Zoocam was powered off during intervening dives in order to conserve memory storage.</p>
<p><em>Zooglider</em> was moving at approximately 15 cm s-1 horizontally and 10 cm s-1 vertically while sampling, at an average angle of 16-18° off the horizontal.&nbsp; All sampling was done only on the <em>Zooglider</em> ascents.&nbsp; During descents, ultraviolet LEDs were powered intermittently and wipers activated to remove any biofouling materials on the optical surfaces.</p>
<p>Zoocam sampling was conducted at 1 Hz.&nbsp; The Zoocam has an image volume of 250 mL, illuminated by red light centered at 620-630 nm.&nbsp;</p>
<p>Sampling details may be found in Ohman et al. (2019). The parallel BIOSWOT-Med sampling program aboard the French research vessel <em>L’Atalante</em>,<em> </em>including other autonomous instruments is described in&nbsp;Doglioli and Gérald. (2023) (see related publications).&nbsp;</p>
Specified by the Principal Investigator(s)
<p>Regions of Interest (ROIs) werer segmented as detailed in Ohman et al. (2019).&nbsp; ROIs were initially classified using a Machine Learning algorithm employing Convolutional Neural Networks (cf. Ellen and Ohman 2024). Then classifications were manually corrected and assigned to 25 reproducible categories of organisms and suspended particles. These abundances were corrected for imaged volume and expressed as numbers of individuals per liter.&nbsp; If tentacles occluded the optical surfaces for a significant portion of a dive, these images were not analyzed.&nbsp; Zero values indicate that category of organism was not detected in the ~250 mL imaged volume.</p>
Specified by the Principal Investigator(s)
* Converted date to ISO format (yyyymmdd -> yyyy-mm-dd)
* Converted time to ISO format (hhmmss -> hh:mm:ss)
* Created an ISO_DateTime_UTC column from the original, separate date and time columns (the original two date and time columns have been removed from the data file
* Special characters within the parameter names of the data file have been removed and replaced with underscores ("_"); for example, column "Particles_0.25mm_0.45mm" has been changed to "Particles_0_25mm_0_45mm"
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
Zoocam shadowgraph optical imaging system
Zoocam shadowgraph optical imaging system
PI Supplied Instrument Name: Zoocam shadowgraph optical imaging system PI Supplied Instrument Description:Custom Zoocam shadowgraph optical imaging system with telecentric lens, as described in Ohman et al. (2019 Instrument Name: Underwater Camera Instrument Short Name: Instrument Description: All types of photographic equipment that may be deployed underwater including stills, video, film and digital systems. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/180/
PI Supplied Instrument Name: PI Supplied Instrument Description:Zooglider, designed and built at the Scripps Institution of Oceanography, as described in Ohman et al. (2019. Limnology and Oceanography-Methods 17: 69-86 doi 10.1002/lom3.10301). It is based on a Spray glider hull (Sherman et al. 2002. IEEE Journal of Oceanic Engineering 26: 437-446 doi 10.1109/48.972076), modified with custom optical and acoustic sampling instruments. Instrument Name: Zooglider Instrument Short Name: Instrument Description: Zooglider, designed and built at the Scripps Institution of Oceanography, as described in Ohman et al. (2019. Limnology and Oceanography-Methods 17: 69-86 doi 10.1002/lom3.10301). It is based on a Spray glider hull (Sherman et al. 2002. IEEE Journal of Oceanic Engineering 26: 437-446 doi 10.1109/48.972076), modified with custom optical and acoustic sampling instruments.
Cruise: BioSWOT-Med
BioSWOT-Med
R/V L'Atalante
Community Standard Description
International Council for the Exploration of the Sea
R/V L'Atalante
vessel
BioSWOT-Med
Andrea Doglioli
Aix-Marseille University
R/V L'Atalante
Community Standard Description
International Council for the Exploration of the Sea
R/V L'Atalante
vessel