http://lod.bco-dmo.org/id/dataset/895121
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
2023-05-01
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Abundances of larval Northern Anchovy (Engraulis mordax), Rockfish (Sebastes spp., and other/unidentified larvae from Bongo plankton net tows conducted in the subtropical Southern California Bight from January to April 2021
2023-05-02
publication
2023-05-02
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2023-05-02
publication
https://doi.org/10.26008/1912/bco-dmo.895121.1
Brice X. Semmens
University of California-San Diego Scripps
principalInvestigator
Michael R. Landry
University of California-San Diego Scripps
principalInvestigator
Rasmus Swalethorp
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: Semmens, B. X., Landry, M. R., Swalethorp, R. (2023) Abundances of larval Northern Anchovy (Engraulis mordax), Rockfish (Sebastes spp., and other/unidentified larvae from Bongo plankton net tows conducted in the subtropical Southern California Bight from January to April 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-05-02 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.895121.1 [access date]
Larval fish abundance from Bongo plankton net tows Dataset Description: Methods and Sampling: <p>This study was carried out within the temperate to subtropical Southern California Bight and surrounding coastal areas between 32° and 35° North, and 117° and 120° West. Specific locations sampled fall within the CalCOFI and CCE-LTER programs' quarterly survey grid from lines 76.7 to 93.4 and stations 26 to 55.</p>
<p>Sampling took place from January to April 2021 on R/V Bob and Betty Beyster cruises BBB2101, BBB2102, and BBB2104 and on R/V Shearwater cruise SW2104. Each cruise number is composed of one or more day trips using one of the two research vessels. The two-three letters indicate the research vessel, and the four digits indicate YYMM.</p>
<p>Larval fish were collected using a 71-centimeter (cm diameter dual Bongo plankton net system equipped with a small CTD to record depth and physical variables during horizontal net tows at a ship speed of 1.5 to 2.5 knots down to 14 to 36 meters (m) depth, depending on bottom depth. The Bongo was equipped with two 505-micrometer (µm) mesh-size nets and a flowmeter mounted in the center of one of them.</p>
<p>Once the net was retrieved the cod-ends were immediately placed in a saltwater ice bath and the nets were gently rinsed with saltwater. The content of the cod-ends was then concentrated onto a 200-300 µm mesh-size sieve, transferred into glass jars, and preserved in Tris-buffered 95% ethanol as quickly as possible. After a few days of storage, the alcohol was exchanged. The samples were sorted under a dissecting microscope and fish larvae were identified based on body shape and pigmentation patterns.</p>
<p><strong>Known Problems/Issues:</strong><br />
The Rockfish data contain some gaps for samples where they were not identified and counted. In those cases, any Rockfish present will be included in the Other / Unidentified category.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2053719 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2053719
completed
Brice X. Semmens
University of California-San Diego Scripps
858-822-0518
MBRD, Scripps Institution of Oceanography 9500 Gilman Dr #0202
La Jolla
CA
92303-0202
USA
bsemmens@ucsd.edu
pointOfContact
Michael R. Landry
University of California-San Diego Scripps
858-534-4702
9500 Gilman Drive Mail Code: 0227
La Jolla
CA
92093-0227
USA
mlandry@ucsd.edu
pointOfContact
Rasmus Swalethorp
University of California-San Diego Scripps
858-951-7360
9500 Gilman Drive #0206
La Jolla
CA
92093-0206
USA
rswalethorp@ucsd.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cruise
ISO_DateTime_UTC
ISO_DateTime_PDT
Line
St
Lat
Long
Tow_depth
Net
Taxa
Common_name
Count
ind_per_cubic_m
ind_per_ten_sq_m
71 cm diameter dual Bongo plankton net system
General Oceanic Inc. Flowmeter
SonTek CastAway CTD model CC1403002
theme
None, User defined
Cruise identfier
ISO_DateTime_UTC
ISO_DateTime_Local
site
station
latitude
longitude
depth_max
net
taxon
common_name
count
abundance
featureType
BCO-DMO Standard Parameters
Bongo Net
Flow Meter
SonTek CastAway-CTD
instrument
BCO-DMO Standard Instruments
BBB2101
BBB2102
BBB2104
SW2104
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.
RAPID: Understanding the unprecedented anchovy response to warm-water conditions in the California Current
https://osprey.bco-dmo.org/project/867657
RAPID: Understanding the unprecedented anchovy response to warm-water conditions in the California Current
<p><em>NSF Award Abstract:</em><br />
Like many species of small pelagic marine fish, recruitment and productivity of Northern Anchovy fluctuate by orders of magnitude among years. When abundant, the anchovy support a wide range of marine species, including marine mammals, seabirds and a diverse group of marine fishes. Anchovy, which previously thrived during periods of cool-water temperatures and strong coastal upwelling, are currently booming with abundances far in excess of any historical record, even though the California Current Ecosystem is experiencing an unprecedented marine heat wave. This unexpected occurrence challenges the most basic understanding of the mechanisms driving population dynamics in the species. This project is investigating the effects of trophic relationships on population productivity by capitalizing on the immediate research opportunity afforded by the novel, yet ephemeral, state of a local marine heat wave. Findings from the work are being used to develop a mechanistic model of coastal pelagic fish population dynamics generally, and anchovy dynamics in particular. Funded field and lab work are supporting opportunities for undergraduate training and research, and are generating open-access data that serve the research and teaching/training communities into the future.</p>
<p>This RAPID project augments the scheduled Fall research cruises jointly run by the California Cooperative Oceanic Fisheries Investigation and the California Current Ecosystem Long-Term Ecological Research programs. Together, these programs conduct regional oceanographic surveys that include anchovy spawning grounds and larval nursery areas. The RAPID-augmented sampling is designed to test the emerging hypothesis that anchovy populations are trophodynamically mediated at the larval stage, whereby high recruitment results from increased trophic transfer efficiency from the base of the food web. Larval diets and prey selection analyses are being paired with amino acid compound-specific isotope analysis (δ15N) of the larvae and prey field to generate detailed information on larval trophic ecology. Larval diets and plankton community structure are being related to available data on upwelling and productivity to assess environmental and biological drivers to trophic transfer efficiency. Collectively, these analyses are revealing how food chain length is regulated at the larval level through prey selection, at the prey level through community composition, and at the base of the food chain via coastal upwelling and primary production. Furthermore, this project is establishing whether the current trophic level of anchovy larvae is equal to that of historic population booms and if this is the result of favorable feeding conditions throughout their habitat. Findings from the study are generating a mechanistic understanding of the trophic underpinnings of small pelagic fish population productivity in coastal upwelling systems.</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>Location Description:<br />
This study is carried out within the temperate to subtropical Southern California Bight and surrounding coastal areas between 32° and 35° N, and 117° and 120° W. Specific locations sampled fall within the CalCOFI and CCE-LTER programs quarterly survey grid from lines 76.7 to 93.4 and stations 26 to 55.</p>
<p>Project Affiliations:<br />
<a href="https://www.bco-dmo.org/project/2086" target="_blank">California Current Ecosystem Long-term Ecological Research Program (CCE-LTER)</a><br />
<a href="https://calcofi.org/">California Cooperative Oceanic Fisheries Investigations (CalCOFI)</a></p>
RAPID Anchovy Response
largerWorkCitation
project
eng; USA
oceans
-120.8
-117.279
32.8468
34.45
2021-01-23
2021-04-15
Southern California Bight and surrounding coastal areas between 32° and 35° N, and 117° and 120° W
0
BCO-DMO catalogue of parameters from Abundances of larval Northern Anchovy (Engraulis mordax), Rockfish (Sebastes spp., and other/unidentified larvae from Bongo plankton net tows conducted in the subtropical Southern California Bight from January to April 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/895220.rdf
Name: Cruise
Units: unitless
Description: <p>Cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/895221.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC) in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/895222.rdf
Name: ISO_DateTime_PDT
Units: unitless
Description: <p>Date and time (PDT) in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/895223.rdf
Name: Line
Units: unitless
Description: <p>CalCOFI line</p>
http://lod.bco-dmo.org/id/dataset-parameter/895224.rdf
Name: St
Units: unitless
Description: <p>CalCOFI station</p>
http://lod.bco-dmo.org/id/dataset-parameter/895225.rdf
Name: Lat
Units: decimal degrees North
Description: <p>Latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/895226.rdf
Name: Long
Units: decimal degrees East
Description: <p>Longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/895227.rdf
Name: Tow_depth
Units: meters (m)
Description: <p>Maximum depth of net</p>
http://lod.bco-dmo.org/id/dataset-parameter/895228.rdf
Name: Net
Units: unitless
Description: <p>Indicates starboard (STB) or port (PORT) net</p>
http://lod.bco-dmo.org/id/dataset-parameter/895229.rdf
Name: Taxa
Units: unitless
Description: <p>Latin name of larval fish</p>
http://lod.bco-dmo.org/id/dataset-parameter/895230.rdf
Name: Common_name
Units: unitless
Description: <p>Common name of larval fish</p>
http://lod.bco-dmo.org/id/dataset-parameter/895231.rdf
Name: Count
Units: number of individuals
Description: <p>Number of larvae caught in net</p>
http://lod.bco-dmo.org/id/dataset-parameter/895232.rdf
Name: ind_per_cubic_m
Units: individuals per cubic meter
Description: <p>Larval abundance per cubic meter</p>
http://lod.bco-dmo.org/id/dataset-parameter/895233.rdf
Name: ind_per_ten_sq_m
Units: individuals per ten square meters
Description: <p>Larval abundance per 10 square meters</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
26458
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/957939c4-f2de-405e-88d0-fb75195d95e3/content
download
https://doi.org/10.26008/1912/bco-dmo.895121.1
download
onLine
dataset
<p>This study was carried out within the temperate to subtropical Southern California Bight and surrounding coastal areas between 32° and 35° North, and 117° and 120° West. Specific locations sampled fall within the CalCOFI and CCE-LTER programs' quarterly survey grid from lines 76.7 to 93.4 and stations 26 to 55.</p>
<p>Sampling took place from January to April 2021 on R/V Bob and Betty Beyster cruises BBB2101, BBB2102, and BBB2104 and on R/V Shearwater cruise SW2104. Each cruise number is composed of one or more day trips using one of the two research vessels. The two-three letters indicate the research vessel, and the four digits indicate YYMM.</p>
<p>Larval fish were collected using a 71-centimeter (cm diameter dual Bongo plankton net system equipped with a small CTD to record depth and physical variables during horizontal net tows at a ship speed of 1.5 to 2.5 knots down to 14 to 36 meters (m) depth, depending on bottom depth. The Bongo was equipped with two 505-micrometer (µm) mesh-size nets and a flowmeter mounted in the center of one of them.</p>
<p>Once the net was retrieved the cod-ends were immediately placed in a saltwater ice bath and the nets were gently rinsed with saltwater. The content of the cod-ends was then concentrated onto a 200-300 µm mesh-size sieve, transferred into glass jars, and preserved in Tris-buffered 95% ethanol as quickly as possible. After a few days of storage, the alcohol was exchanged. The samples were sorted under a dissecting microscope and fish larvae were identified based on body shape and pigmentation patterns.</p>
<p><strong>Known Problems/Issues:</strong><br />
The Rockfish data contain some gaps for samples where they were not identified and counted. In those cases, any Rockfish present will be included in the Other / Unidentified category.</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing:</strong><br />
CastAway-CTD software version 1.3 (firmware version v026_r2818) was used for data acquisition and processing using default correction algorithms and binned over 0.3 decibar changes. For more information on data processing, please see the manual at <a href="https://www.sontek.com/castaway-ctd" target="_blank">https://www.sontek.com/castaway-ctd</a>.</p>
<p>The flowmeter was calibrated between cruises to accurately calculate the volume of water strained by the net and the abundance of fish larvae. It was assumed the volume would be the same for both the starboard and port side net.</p>
<p><strong>BCO-DMO Processing:</strong><br />
- converted date-time fields to ISO 8601 format;<br />
- renamed fields to comply with BCO-DMO naming conventions;<br />
- corrected typo in dataset: changed "Andhovy" to "Anchovy" in the Common_name column.</p>
Specified by the Principal Investigator(s)
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
71 cm diameter dual Bongo plankton net system
71 cm diameter dual Bongo plankton net system
PI Supplied Instrument Name: 71 cm diameter dual Bongo plankton net system Instrument Name: Bongo Net Instrument Short Name:Bongo Net Instrument Description: A Bongo Net consists of paired plankton nets, typically with a 60 cm diameter mouth opening and varying mesh sizes, 10 to 1000 micron. The Bongo Frame was designed by the National Marine Fisheries Service for use in the MARMAP program. It consists of two cylindrical collars connected with a yoke so that replicate samples are collected at the same time. Variations in models are designed for either vertical hauls (OI-2500 = NMFS Pairovet-Style, MARMAP Bongo, CalVET) or both oblique and vertical hauls (Aquatic Research). The OI-1200 has an opening and closing mechanism that allows discrete "known-depth" sampling. This model is large enough to filter water at the rate of 47.5 m3/minute when towing at a speed of two knots. More information: Ocean Instruments, Aquatic Research, Sea-Gear Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/NETT0009/
General Oceanic Inc. Flowmeter
General Oceanic Inc. Flowmeter
PI Supplied Instrument Name: General Oceanic Inc. Flowmeter Instrument Name: Flow Meter Instrument Short Name:Flow Meter Instrument Description: General term for a sensor that quantifies the rate at which fluids (e.g. water or air) pass through sensor packages, instruments, or sampling devices. A flow meter may be mechanical, optical, electromagnetic, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/388/
SonTek CastAway CTD model CC1403002
SonTek CastAway CTD model CC1403002
PI Supplied Instrument Name: SonTek CastAway CTD model CC1403002 Instrument Name: SonTek CastAway-CTD Instrument Short Name:CastAway-CTD Instrument Description: The Sontek CastAway-CTD (manufactured by Xylem) is a handheld castable instrument that provides instantaneous profiles of temperature, salinity, and sound speed. Each cast is referenced with both time and location using its built-in GPS receiver. The CastAway software displays profiles of the casts in addition to mapping the locations of the data collection points. The CastAway-CTD has a 5 Hz response and sampling rate, accurate to 0.1 (PSS-78), 0.05° Celsius.
Conductivity range is 0 to 100,000 µS/cm.
Temperature range is -5° to 45° Celsius.
Pressure range is 0 to 100 decibars.
Further specs and information can be found on the manufacturer's website: https://www.xylem.com/en-us/brands/wtw/wtw-products/castaway-ctd/
Cruise: BBB2101
BBB2101
R/V Bob and Betty Beyster
R/V Bob and Betty Beyster
vessel
BBB2101
Rasmus Swalethorp
University of California-San Diego Scripps
Cruise: BBB2102
BBB2102
R/V Bob and Betty Beyster
R/V Bob and Betty Beyster
vessel
BBB2102
Rasmus Swalethorp
University of California-San Diego Scripps
Cruise: BBB2104
BBB2104
R/V Bob and Betty Beyster
R/V Bob and Betty Beyster
vessel
BBB2104
Rasmus Swalethorp
University of California-San Diego Scripps
Cruise: SW2104
SW2104
Community Standard Description
International Council for the Exploration of the Sea
R/V Shearwater
vessel
SW2104
Rasmus Swalethorp
University of California-San Diego Scripps
R/V Bob and Betty Beyster
R/V Bob and Betty Beyster
vessel
Community Standard Description
International Council for the Exploration of the Sea
R/V Shearwater
vessel