http://lod.bco-dmo.org/id/dataset/921981
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
2024-03-12
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Echosounder data (38kHz) collected along the slope between Faial and Pico Island Azores in November and December of 2021
2024-03-12
publication
2024-03-12
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-03-13
publication
https://doi.org/10.26008/1912/bco-dmo.921981.1
T. Aran Mooney
Woods Hole Oceanographic Institution
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: Mooney, T. A. (2024) Echosounder data (38kHz) collected along the slope between Faial and Pico Island Azores in November and December of 2021. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-03-12 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.921981.1 [access date]
Methods and Sampling: <p>Deployments: Day-trips aboard a 21-foot RIB while winds were less than 15 knots. Data span November 29 to December 2nd.<br />
<br />
Sampling was completed with a BioSonics DTX Extreme scientific echosounder and a 38kHz transducer. Transducer was coated in soap prior to deployment to prevent bubbles on surface. Sampling took place along depth range spanning 100-500 meters while the boat transited at 1.5 knots above bottom.&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2203204 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2203204
completed
T. Aran Mooney
Woods Hole Oceanographic Institution
508-289-3714
Biology Department MRF Mail Stop 50
Woods Hole
MA
02543
USA
amooney@whoi.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Time
FileName
TransducerName
TransducerNumber
ReportNumber
FirstPingNumber
LastPingNumber
BottomStatus
BottomElevation_m
PlantStatus
lat
lon
ISO_DateTime_UTC
theme
None, User defined
Date and time
file_name
instrument
sample description
depth
latitude
longitude
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
BioSonics DT-X Digital Scientific Echosounder
instrument
BCO-DMO Standard Instruments
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: Too hot to hold: Effects of unseasonable warming on the Azores nekton community and its keystone taxon
https://osprey.bco-dmo.org/project/884526
RAPID: Too hot to hold: Effects of unseasonable warming on the Azores nekton community and its keystone taxon
<p><strong>NSF Award Abstract</strong><br />
Across the globe it has become increasingly clear that climate change is influencing animal movement patterns. The daily vertical migration of marine animals such as squid is often termed “the largest migration on Earth.” Understanding the impacts of climate change on diel vertical migration is essential for an understanding of how ocean ecosystems will fare with increasing temperatures. Central Atlantic waters are ca. 2-3 °C above normal; this unusual warming event provides a short and urgent window of opportunity to examine how global warming will affect this huge migration. The movements and energetics of squid and their larger community are being measured using traditional oceanographic methods and innovative, new high-resolution sensor and motion tags. The new data are providing novel insights into how warm temperatures are affecting movements, migrations, changes in biomass, and other energetic consequences of behavioral responses to environmental change. The project leverages an animal group (squid) that links top predators and smaller prey within a complex trophic web. As a group, squids are one of the world’s largest fisheries, they are of global food-resource importance, and they are prey for many commercially important fish species (tuna, swordfish), sea birds and marine mammals. Predicting climate-driven changes on these animals and their daily migratory patterns is critical for sustainable resource management. Educational broader impacts are focused on training opportunities for graduate and undergraduate students with emphasis on recruiting participants from underrepresented groups. The graduate students are gaining international experience in field work and scientific collaborations.</p>
<p>Diel vertical migrations are a vital process of ocean energy exchange that are influenced by the physical environment, yet few experimental data address how warming affects these migrations. Central Atlantic waters are ca. 2-3° C above normal, extending stratified summer conditions and stressful warmer waters into a key time of year when organisms “expect” greater mixing and cooler oceans. These fleeting warm-water conditions present a unique opportunity to study how a vertically migrating nekton community and its key component (squid) are adjusting their movements to balance energetic demands and expenditures. Building from a suite of before-and-after data, this project is examining the response of the migratory community and the squid to unusually warm, physiologically stressful, ocean conditions during a critical life-stage. The prediction is that the community and squid are utilizing an energetically costly set of responses, leading to altered movement patterns and decreased densities of migratory organisms in surface waters at night. The timeframe of the project coincides with a period when squid invest in somatic and reproductive growth via substantial foraging and interactions within the larger nekton community. New data are being collected to (i) examine movement ecology and energetics by tagging Loligo forbesii squid near the Azores using novel motion tags and environmental sensors (ITAGs), (ii) quantify the nekton community and prey layer density and movements via scientific echosounders in locations overlapping with tagged animals, (iii) characterize environmental conditions using standard oceanographic casts, surface satellite data, and the eco-sensor data from animal-borne tags, and (iv) assess vertical movement and habitat use changes as seasonality progresses using longer-term, lower resolution, movement tags. The central hypothesis being tested is that the migratory community is responding to thermal stress by changing vertical migration patterns and feeding strategies. These responses have negative consequences on the squid’s energy balance and lead to higher foraging costs and decreased feeding success.</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>
Too hot to hold
largerWorkCitation
project
eng; USA
oceans
-28.3522
-28.3522
38.3003
38.3003
2021-11-29
2021-12-02
Azores
0
BCO-DMO catalogue of parameters from Echosounder data (38kHz) collected along the slope between Faial and Pico Island Azores in November and December of 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/921985.rdf
Name: Time
Units: unitless
Description: <p>Date and time. Local Time zone = GMT-01:00</p>
http://lod.bco-dmo.org/id/dataset-parameter/921986.rdf
Name: FileName
Units: unitless
Description: <p>Filename of the .dt4 file (see Supplemental Files). day1N_20211129_154458.dt4 = "TimePeriod_YYYYMMDD_HHMMSS.dt4"</p>
http://lod.bco-dmo.org/id/dataset-parameter/921987.rdf
Name: TransducerName
Units: unitless
Description: <p>38 kHz 10° Split = Transducer frequency_Beam Angle_BeamType</p>
http://lod.bco-dmo.org/id/dataset-parameter/921988.rdf
Name: TransducerNumber
Units: unitless
Description: <p>ID of transducer. Only a BioSonics DTX Extreme 38 kHz transducer was used.</p>
http://lod.bco-dmo.org/id/dataset-parameter/921989.rdf
Name: ReportNumber
Units: unitless
Description: <p>Data were analyzed in '10 Ping bins', and Report Number is the nth bin analyzed</p>
http://lod.bco-dmo.org/id/dataset-parameter/921990.rdf
Name: FirstPingNumber
Units: unitless
Description: <p>First ping of new report</p>
http://lod.bco-dmo.org/id/dataset-parameter/921991.rdf
Name: LastPingNumber
Units: unitless
Description: <p>Last ping of new report</p>
http://lod.bco-dmo.org/id/dataset-parameter/921992.rdf
Name: BottomStatus
Units: unitless
Description: <p>Valid/Invalid response outlining whether bottom could be detected</p>
http://lod.bco-dmo.org/id/dataset-parameter/921993.rdf
Name: BottomElevation_m
Units: meters (m)
Description: <p>water depth</p>
http://lod.bco-dmo.org/id/dataset-parameter/921994.rdf
Name: PlantStatus
Units: unitless
Description: <p>Valid/Invalid response outlining whether plant could be detected</p>
http://lod.bco-dmo.org/id/dataset-parameter/921995.rdf
Name: lat
Units: decimal degrees
Description: <p>Site latitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/921996.rdf
Name: lon
Units: decimal degrees
Description: <p>Site longitude</p>
http://lod.bco-dmo.org/id/dataset-parameter/921997.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>DateTime with time zone (UTC) in 8601 format.</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
170309
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/8d0c485c-bead-405b-8858-4cbd7f2e52bc/content
download
https://doi.org/10.26008/1912/bco-dmo.921981.1
download
onLine
dataset
<p>Deployments: Day-trips aboard a 21-foot RIB while winds were less than 15 knots. Data span November 29 to December 2nd.<br />
<br />
Sampling was completed with a BioSonics DTX Extreme scientific echosounder and a 38kHz transducer. Transducer was coated in soap prior to deployment to prevent bubbles on surface. Sampling took place along depth range spanning 100-500 meters while the boat transited at 1.5 knots above bottom.&nbsp;</p>
Specified by the Principal Investigator(s)
<p>The echosounding data (.dt4)&nbsp;were not&nbsp;edited.&nbsp; The data from the instrument in .dt4 format was&nbsp;viewed on Visual Aquatic v1.0.0.13146 and exported as csv format.&nbsp; The tabular csv form of the dataset was used for the primary format of this BCO-DMO dataset&nbsp;(see Data Files section).&nbsp; Additional columns were added by BCO-DMO for lat,lon, and datetime (see BCO-DMO Processing Notes section).<br />
<br />
The .dt4 files are provided in the Supplemental Files section.&nbsp; The&nbsp;.dt4 files can be loaded in Visual Aquatic, provided through Biosonics Inc, and it includes post-processing capabilities.&nbsp;</p>
Specified by the Principal Investigator(s)
* Submitted file "Rapid_Azores_Echosounding.csv" was imported into the BCO-DMO data system for this dataset.
* Lat lon columns added from values provided in metadata.
* ISO_DateTime_UTC column added (ISO 8601 format) from local timestamp provided in Azores time GMT-1
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
PI Supplied Instrument Name: PI Supplied Instrument Description:BioSonics DTX Extreme scientific echosounder and a 38kHz transducer Instrument Name: BioSonics DT-X Digital Scientific Echosounder Instrument Short Name:BioSonics DT-X Echosounder Instrument Description: The BioSonics DT-X Digital Scientific Echosounder is available in single or spilt beam configuration. The resultant data set comprises 38 and 120 kHz split beam data. The DT-X Digital Scientific Echosounder is used for stock assessment, biomass estimates, and habitat mapping. DT-X digital transducers are available in a range of frequencies (38, 70, 120, 200, and 420 kHz) and beam patterns in split beam or single beam. Up to 5 transducers can be mulltiplexed for simultaneous data collection in any combination of frequencies and transducer orientations. The BioSonics split beam echosounder data can be analyzed for fish quantity, individual sizes, direction of travel through the acoustic beam. Data analysis is done using BioSonics, Echoview, or Sonar4/5-Pro software (and other options are available). Additional information is available from: BioSonics DT-X Digital Echosounder (http://www.biosonicsinc.com/product-overview.asp), BioSonics (http://www.biosonicsinc.com), Echoview (http://www.echoview.com/), and Sonar4/5-Pro (http://tid.uio.no/~hbalk/sonar4_5/index.htm). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/FFES/