http://lod.bco-dmo.org/id/dataset/715512
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
2017-09-25
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Acoustic backscatter from sites in McMurdo Sound from 2014-2015 (McMurdo Predator Prey project)
2017-02-21
publication
2017-02-21
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2018-03-19
publication
https://doi.org/10.1575/1912/bco-dmo.731147
Kendra L. Daly
University of South Florida
principalInvestigator
David G. Ainley
H.T. Harvey & Associates
principalInvestigator
Grant Ballard
Point Blue Conservation Science
principalInvestigator
Stacy Kim
Moss Landing Marine Laboratories
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: Daly, K., Saenz, B., Kim, S. (2017) Acoustic backscatter from sites in McMurdo Sound from 2014-2015 (McMurdo Predator Prey project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 2017-02-21) Version Date 2017-02-21 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.731147 [access date]
Acoustic backscatter from sites in McMurdo Sound. Dataset Description: <p>Krill and fish were sampled acoustically and visually beneath the fast ice using the tethered SCINI ROV, which was deployed and operated through a 25 cm diameter hole drilled through the sea ice. SCINI contained cameras and thrusters, and towed a sensor package consisting of a WET Labs fluorometer (ECO-AFL/FL) and a single-beam Biosonics 120 kHz DT-X echosounder. Visual targets were identified to the lowest taxon possible; these observations were used primarily to verify classification of acoustic signals. The echosounder operated at a nominal ping rate of 1 ping s-1; however, this rate was occasionally adjusted if false bottom signals were observed. The general profile of a dive included a surface transect of ~300 m horizontal distance, where the acoustic transducer faced downward, and also a dive to ~120 m if conditions allowed. Echogram data were saved to a depth of 500 m, and background noise was removed. Given the effective range of the transducer of approximately 100 m (resolving -80 dB targets), surveys characterized the upper 200 m of the water column.</p> Methods and Sampling:
Funding provided by NSF Division of Polar Programs (NSF PLR) Award Number: PLR-0944747 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0944747
Funding provided by NSF Division of Polar Programs (NSF PLR) Award Number: PLR-0944511 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0944511
Funding provided by NSF Division of Polar Programs (NSF PLR) Award Number: PLR-0944694 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0944694
completed
Kendra L. Daly
University of South Florida
727 553 1041
140 Seventh Ave., South
St. Petersburg
FL
33701
USA
kdaly@marine.usf.edu
pointOfContact
David G. Ainley
H.T. Harvey & Associates
USA
dainley@harveyecology.com
pointOfContact
Grant Ballard
Point Blue Conservation Science
707-781-2555 ext. 340
3820 Cypress Drive #11
Petaluma
CA
94954
USA
gballard@pointblue.org
pointOfContact
Stacy Kim
Moss Landing Marine Laboratories
831-345-0361
8272 Moss Landing Rd.
Moss Landing
CA
95039
USA
skim@mlml.calstate.edu
pointOfContact
asNeeded
Dataset Version: 2017-02-21
Unknown
site
sitenum
dn
datetime
Group
lat
lon
sv_linear_sum
n
effort
sv_mean
depth_mean
sv_mean_effort
Biosonics, Inc. DT-X echosounder
SCINI ROV
theme
None, User defined
site description
site
No BCO-DMO term
date
sample description
latitude
longitude
beam attenuation
Acoustic backscatter in the water column
depth
featureType
BCO-DMO Standard Parameters
BioSonics DT-X Digital Scientific Echosounder
Remotely Operated Vehicle
instrument
BCO-DMO Standard Instruments
McMurdo_Backscatter_2014-2015
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.
Food web dynamics in an intact ecosystem: the role of top predators in McMurdo Sound
https://scini-penguin.mlml.calstate.edu/pauls-wordpress-test-site/
Food web dynamics in an intact ecosystem: the role of top predators in McMurdo Sound
<p><em>Extracted from the NSF award abstract:</em></p>
<p>The research project investigates the importance of top down forcing on pelagic food webs. The relatively pristine Ross Sea includes large populations of upper-level predators such as minke and killer whales, Adélie and Emperor penguins, and Antarctic toothfish. This project focuses on food web interactions of Adélie penguins, minke whales, and the fish-eating Ross Sea killer whales, all of which exert foraging pressure on their main prey, crystal krill (<em>Euphausia cyrstallorophias</em>) and silver fish (<em>Pleuragramma antarcticum</em>) in McMurdo Sound.</p>
<p>The investigators used a video- and acoustic-capable ROV, and standard biological and environmental sensors to quantify the abundance and distribution of phytoplankton, sea ice biota, prey, and relevant habitat data. The sampling area included 37 stations across an 30 x 15 km section of McMurdo Sound, stratified by distance from the ice edge as a proxy for air-breathing predator access. This study will be among the first to assess top-down forcing in the Ross Sea ecosystem and will form the basis for multidisciplinary studies in the future.</p>
<p><strong>Map sampling stations</strong></p>
<p><img alt="MODISS Map" src="https://datadocs.bco-dmo.org/d2/McMurdo_Predator_Prey/MODISSSMI.jpg" style="height:415px; width:600px" /></p>
McMurdo Predator Prey
largerWorkCitation
project
eng; USA
oceans
165.061085
166.334829
-77.7031864
-77.5508
2014-11-23
2015-01-07
McMurdo Sound, Antarctica
0
BCO-DMO catalogue of parameters from Acoustic backscatter from sites in McMurdo Sound from 2014-2015 (McMurdo Predator Prey 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
http://lod.bco-dmo.org/id/dataset-parameter/716040.rdf
Name: site
Units: unitless
Description: <p>site name string</p>
http://lod.bco-dmo.org/id/dataset-parameter/716041.rdf
Name: sitenum
Units: unitless
Description: <p>numerical representation of site</p>
http://lod.bco-dmo.org/id/dataset-parameter/716042.rdf
Name: dn
Units: days
Description: <p>python matplotlib datenum; days since 0001-01-01 00:00:00 UTC</p>
http://lod.bco-dmo.org/id/dataset-parameter/716043.rdf
Name: datetime
Units: unitless
Description: <p>date time of sampling; string with mm/dd/yyy hh:mm:ss</p>
http://lod.bco-dmo.org/id/dataset-parameter/716044.rdf
Name: Group
Units: unitless
Description: <p>classification of backscatter;Krill = Crystal krill; Silverfish= Antarctic silverfish; LargeFish = unknown large fish; WeakScatterers = unknown scatterers generally < -70 dB re 1 m-1</p>
http://lod.bco-dmo.org/id/dataset-parameter/716045.rdf
Name: lat
Units: decimal degrees
Description: <p>latitude of sampling station (positive is north)</p>
http://lod.bco-dmo.org/id/dataset-parameter/716046.rdf
Name: lon
Units: decimal degrees
Description: <p>longitude of sampling station (positive is west)</p>
http://lod.bco-dmo.org/id/dataset-parameter/716047.rdf
Name: sv_linear_sum
Units: m^-1
Description: <p>sum of linear acoustic volume backscatter</p>
http://lod.bco-dmo.org/id/dataset-parameter/716048.rdf
Name: n
Units: unitless
Description: <p>number of classified volumes</p>
http://lod.bco-dmo.org/id/dataset-parameter/716049.rdf
Name: effort
Units: unitess
Description: <p>number of total surveyed volumes</p>
http://lod.bco-dmo.org/id/dataset-parameter/716050.rdf
Name: sv_mean
Units: decibel at reference level 1 meter (dB re 1 m-1)
Description: <p>mean volume backscatter of classified samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/716051.rdf
Name: depth_mean
Units: meter (m)
Description: <p>mean depth of classified volume backscattering</p>
http://lod.bco-dmo.org/id/dataset-parameter/716052.rdf
Name: sv_mean_effort
Units: decibel at reference level 1 meter (dB re 1 m-1)
Description: <p>mean volume backscatter of survey station</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
26548
https://darchive.mblwhoilibrary.org/bitstream/1912/9645/1/data_mcmurdo-sound-acoustic-backscatter-site.tsv
download
https://doi.org/10.1575/1912/bco-dmo.731147
download
onLine
dataset
<p>Raw acoustic data were analyzed using Echoview software (version 5.3). All acoustic aggregations greater than 4 pings in width were manually delineated, and acoustic energy of the aggregations was integrated into bins of six seconds wide by 1 m in depth. These aggregations were classified as potentially krill or silverfish, based upon ROV visual identification of the targets, or where no visual targets were encountered, by comparing the aggregation target strength, shape, density, and texture and depth to a set of aggregations with positive visual classification. Finally, the all classified volume backscatter was summed and to arrive at station means, and a weighted mean depth was also found. Acoustic returns are presented as integrated acoustic energy (volume backscatter strength [Sv], in units of dB re m-1).</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
Biosonics, Inc. DT-X echosounder
Biosonics, Inc. DT-X echosounder
PI Supplied Instrument Name: Biosonics, Inc. DT-X echosounder PI Supplied Instrument Description:Biosonics, Inc. DT-X echosounder with 120 kHz split beam 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/
SCINI ROV
SCINI ROV
PI Supplied Instrument Name: SCINI ROV PI Supplied Instrument Description:SCINI ROV (https://bitbucket.org/scinirov/scini/wiki/Home) Instrument Name: Remotely Operated Vehicle Instrument Short Name:ROV Instrument Description: Remotely operated underwater vehicles (ROVs) are unoccupied, highly maneuverable underwater robots operated by a person aboard a surface vessel. They are linked to the ship by a group of cables that carry electrical signals back and forth between the operator and the vehicle. Most are equipped with at least a video camera and lights. Additional equipment is commonly added to expand the vehicle’s capabilities. These may include a still camera, a manipulator or cutting arm, water samplers, and instruments that measure water clarity, light penetration, and temperature.
Deployment: McMurdo_Backscatter_2014-2015
McMurdo_Backscatter_2014-2015
shoreside McMurdo_Backscatter
dock
shoreside McMurdo_Backscatter
dock