http://lod.bco-dmo.org/id/dataset/996652
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
2026-04-10
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
MOCNESS Biomass data associated with R/V Sally Ride cruise SR2407 in the Gulf of California in May 2024
2026-04-10
publication
2026-04-10
revision
BCO-DMO Linked Data URI
2026-04-10
creation
http://lod.bco-dmo.org/id/dataset/996652
Amy Elizabeth Maas
Bermuda Institute of Ocean Sciences
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: Maas, A. E. (2026) MOCNESS Biomass data associated with R/V Sally Ride cruise SR2407 in the Gulf of California in May 2024. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-04-10 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/996652 [access date]
MOCNESS Biomass SR2407 Dataset Description: Methods and Sampling: <p>In May 2024, the R/V Sally Ride cruises SR2407 was conducted in the Gulf of California. The MOCNESS tow nets were deployed during this cruise. Biomass of size fractionated zooplankton samples were collected using a 1 m2 MOCNESS with 222 micrometer mesh. The biomass comes from a pair of day and night tows 0-1000 m in Guaymas Basin in the Gulf of California on May 4th and May 5th.</p>
<p>Biomass of zooplankton collected by MOCNESS net tows partitioned into 5 size fractions. On board a portion of the tow (split) was size fractionated into five size classes (200-500, 500-1000, 1000-2000, 2000-5000, &gt;5000) then dried on a pre-weighed filter, rinsed with ammonium formate and frozen at -80. Upon return to land the filter was gently blotted then weighed on a microbalance to get wet weight. Each filter was then placed in a drying oven (~55C) for a minimum of 3 days and weighed again to obtain a dry mass measurement. To calculate biomass per m3 multiply by split and divide by volume filtered.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2127299 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2127299
onGoing
Amy Elizabeth Maas
Bermuda Institute of Ocean Sciences
508-289-2462
17 Biological Station Ferry Reach
St.George's GE 01
Bermuda
amy.maas@asu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
ISO_datetime_local
Date_local
Local_Time
ISO_datetime_UTC
N_Latitude
W_Longitude
min_depth
max_depth
volume_filtered
DN
Moc_num
Net_num
split
fraction
note
filter_num
filter_weight
Wet_weight
Dry_weight
MOCNESS net system with 10 total nets and 222 mesh
Mettler-Toledo XPR microbalance
theme
None, User defined
ISO_DateTime_Local
date_local
time_local
ISO_DateTime_UTC
latitude
longitude
depth_min
depth_max
volume
time_of_day
cast
net
proportion_of_total
sample fraction (includes size fractions)
comments
No BCO-DMO term
wet_weight_biomass
dry_weight_biomass
featureType
BCO-DMO Standard Parameters
MOCNESS
scale or balance
instrument
BCO-DMO Standard Instruments
SR2407
service
Deployment Activity
La Paz, Mexico
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: Metabolic habitat barriers imposed on tropical diel vertical migrators
https://osprey.bco-dmo.org/project/856354
Collaborative Research: Metabolic habitat barriers imposed on tropical diel vertical migrators
<p><em>NSF Award Abstract:</em><br />
This project is seeking to define physiologically-accessible habitat for animals faced with changing ocean conditions. Many oceanic animals migrate daily from warm, oxygenated surface waters at night to deep, cold and hypoxic waters during the daytime, and these migrations play critical roles in oceanic ecology and biogeochemical cycles. Over their depth ranges, migrators face very different ecological and environmental demands that may lead to unique traits that in turn, influence how they respond to a warming ocean where oxygen minimum zones are also expanding. This study is combining ecological and physiological approaches during two expeditions to the Gulf of California. The investigators are measuring metabolic traits in a diverse suite of ocean animals that exhibit vertical migration to determine possible roles of oxygen and temperature in triggering changes in vertical and latitudinal distribution. They are also measuring species distributions in relation to environmental oxygen and temperature to determine ecologically-relevant thresholds of environmental tolerance. The project involves training and experiential learning for graduate and undergraduate students. In addition, engagement with educational experts and artists will generate media and lesson plans to support STEM education and Next Generation Science Standards. These activities leverage the Bermuda Institute of Ocean Sciences’ Databytes and Mid-Atlantic Robotics IN Education (MARINE) programs, designed to improve ocean literacy and technological fluency and targeting students from groups traditionally underrepresented in science. Project products also include a new level for a video game that introduces the concepts of how oxygen minimum zones influence animal distribution.</p>
<p>Climate change is driving poleward shifts in the distributions of marine animals. These shifting edges of the range of species habitats are often interpreted as a manifestation of oxygen limitation that is presumed to occur at high water temperatures due to a mismatch between physiological oxygen supply and thermodynamically-driven oxygen demand. However, recent work by the investigators suggests that oxygen supply has evolved to meet demand regardless of temperature. These opposing views predict very different thermal thresholds for range expansion. In this study, the investigators are employing a relationship between metabolic traits to infer a unique temperature sensitivity in tropical diel vertical migrators and to map their metabolically-available habitat in the Eastern Pacific. Specifically, the investigators propose that oxygen supply does not limit metabolism in tropical migrators, even in the oxygen minimum zone. Instead, they contend that the active metabolic rate for tropical migrators is highly sensitive to temperature, and that this creates a barrier to range expansion where the aerobic scope for growth and reproduction is insufficient in cold waters. This temperature sensitivity will also allow migrators to expand poleward to newly available habitat following modest warming, rather than simply being extirpated from their native tropical habitat by excess warming. This hypothesis, if supported, would transform our mechanistic understanding of species’ responses to climate change, amend our predictions of range expansion, and modify our assessment of migrator contributions to oceanic biogeochemical cycles in a warmer future ocean.</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>
Metabolism in Diel Migrators
largerWorkCitation
project
eng; USA
biota
oceans
La Paz, Mexico
-111.3141
-111.2403
27.2552
27.3642
2024-05-04
2024-05-05
Guaymas Basin, Gulf of California, Mexico
0
BCO-DMO catalogue of parameters from MOCNESS Biomass data associated with R/V Sally Ride cruise SR2407 in the Gulf of California in May 2024
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/997144.rdf
Name: ISO_datetime_local
Units: unitless
Description: <p>Datetime of sample collection, local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/997145.rdf
Name: Date_local
Units: unitless
Description: <p>Date of sample collection, local timezone</p>
http://lod.bco-dmo.org/id/dataset-parameter/997146.rdf
Name: Local_Time
Units: unitless
Description: <p>Time of sample collection, local timezone</p>
http://lod.bco-dmo.org/id/dataset-parameter/997147.rdf
Name: ISO_datetime_UTC
Units: unitless
Description: <p>Datetime of sample collection, UTC time</p>
http://lod.bco-dmo.org/id/dataset-parameter/997149.rdf
Name: N_Latitude
Units: decimal degrees
Description: <p>Latitude of sample collection, positive is North</p>
http://lod.bco-dmo.org/id/dataset-parameter/997151.rdf
Name: W_Longitude
Units: decimal degrees
Description: <p>Longitude of sample collection, negative is West</p>
http://lod.bco-dmo.org/id/dataset-parameter/997153.rdf
Name: min_depth
Units: meters
Description: <p>Minimum depth of net</p>
http://lod.bco-dmo.org/id/dataset-parameter/997154.rdf
Name: max_depth
Units: meters
Description: <p>Maximum depth of net</p>
http://lod.bco-dmo.org/id/dataset-parameter/997155.rdf
Name: volume_filtered
Units: m3
Description: <p>Volume filtered by the net</p>
http://lod.bco-dmo.org/id/dataset-parameter/997156.rdf
Name: DN
Units: unitless
Description: <p>Day or Night classification; D is day, N is night</p>
http://lod.bco-dmo.org/id/dataset-parameter/997157.rdf
Name: Moc_num
Units: unitless
Description: <p>Mocness number</p>
http://lod.bco-dmo.org/id/dataset-parameter/997158.rdf
Name: Net_num
Units: unitless
Description: <p>Net number</p>
http://lod.bco-dmo.org/id/dataset-parameter/997159.rdf
Name: split
Units: unitless
Description: <p>Proportion of the net preserved</p>
http://lod.bco-dmo.org/id/dataset-parameter/997160.rdf
Name: fraction
Units: unitless
Description: <p>Size class of the net fraction (200-500, 500-1000, 1000-2000, 2000-5000, >5000)</p>
http://lod.bco-dmo.org/id/dataset-parameter/997161.rdf
Name: note
Units: unitless
Description: <p>Notes on the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/997162.rdf
Name: filter_num
Units: unitless
Description: <p>Filter number</p>
http://lod.bco-dmo.org/id/dataset-parameter/997163.rdf
Name: filter_weight
Units: g
Description: <p>Mass of the filter</p>
http://lod.bco-dmo.org/id/dataset-parameter/997164.rdf
Name: Wet_weight
Units: g
Description: <p>Wet mass of the zooplankton (filter mass removed)</p>
http://lod.bco-dmo.org/id/dataset-parameter/997165.rdf
Name: Dry_weight
Units: g
Description: <p>Dry mass of the zooplankton (filter mass removed)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
https://osprey.bco-dmo.org/dataset/996652/data/download
download
onLine
dataset
<p>In May 2024, the R/V Sally Ride cruises SR2407 was conducted in the Gulf of California. The MOCNESS tow nets were deployed during this cruise. Biomass of size fractionated zooplankton samples were collected using a 1 m2 MOCNESS with 222 micrometer mesh. The biomass comes from a pair of day and night tows 0-1000 m in Guaymas Basin in the Gulf of California on May 4th and May 5th.</p>
<p>Biomass of zooplankton collected by MOCNESS net tows partitioned into 5 size fractions. On board a portion of the tow (split) was size fractionated into five size classes (200-500, 500-1000, 1000-2000, 2000-5000, &gt;5000) then dried on a pre-weighed filter, rinsed with ammonium formate and frozen at -80. Upon return to land the filter was gently blotted then weighed on a microbalance to get wet weight. Each filter was then placed in a drying oven (~55C) for a minimum of 3 days and weighed again to obtain a dry mass measurement. To calculate biomass per m3 multiply by split and divide by volume filtered.</p>
Specified by the Principal Investigator(s)
- Loaded sheet 1 of "SR2406-2408 MOC biomass measurements.xlsx" as resource named using filename, with 2-row headers, treating "" and "nd" as missing values
- Renamed 13 fields to remove spaces and special characters: "Date, local" to Date_local, "N. Latitude" to N_Latitude, "W. Longitude" to W_Longitude, "Local Time" to Local_Time, "min depth (m)" to min_depth, "max depth (m)" to max_depth, "volume filtered (m3)" to volume_filtered, "Moc #" to Moc_num, "Net #" to Net_num, "filter #" to filter_num, "filter weight (g)" to filter_weight, "Wet weight (g)" to Wet_weight, "Dry weight(g)" to Dry_weight
- Combined Date_local (format %m-%d-%y) and Local_Time (format %H:%M) into new datetime field ISO_datetime_local with output format %Y-%m-%dT%H:%M
- Converted ISO_datetime_local from America/Denver timezone to UTC, creating new field ISO_datetime_UTC with output format %Y-%m-%dT%H:%M
- Reordered fields to: ISO_datetime_local, Date_local, Local_Time, ISO_datetime_UTC, N_Latitude, W_Longitude, min_depth, max_depth, volume_filtered, DN, Moc_num, Net_num, split, fraction, note, filter_num, filter_weight, Wet_weight, Dry_weight
- Converted N_Latitude from degrees-decimal_minutes to decimal degrees with North directional; converted W_Longitude from degrees-decimal_minutes to decimal degrees with West directional (resulting in negative values)
- Rounded N_Latitude and W_Longitude to 4 decimal places with trailing zeros preserved
- Converted Date_local to date type with output format %Y-%m-%d
- Exported file as "996652_v1_moc_biomass_sr2407.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
MOCNESS net system with 10 total nets and 222 mesh
MOCNESS net system with 10 total nets and 222 mesh
PI Supplied Instrument Name: MOCNESS net system with 10 total nets and 222 mesh PI Supplied Instrument Description:Samples were collected with a MOCNESS net system with 10 total nets and 222 mesh. 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/
Mettler-Toledo XPR microbalance
Mettler-Toledo XPR microbalance
PI Supplied Instrument Name: Mettler-Toledo XPR microbalance PI Supplied Instrument Description:Mass was measured with a Mettler-Toledo XPR microbalance. 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/
Cruise: SR2407
SR2407
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel
SR2407
Brad Seibel
University of South Florida
R/V Sally Ride
Community Standard Description
International Council for the Exploration of the Sea
R/V Sally Ride
vessel