http://lod.bco-dmo.org/id/dataset/705556
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
2017-06-20
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015
2017-06-19
publication
2017-06-19
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-03-27
publication
https://doi.org/10.1575/1912/bco-dmo.705556.1
Valerie Jean Loeb
Moss Landing Marine Laboratories
principalInvestigator
Jarrod A. Santora
University of California-Santa Cruz
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: Loeb, V., Santora, J. (2017) IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2017-06-19 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.705556.1 [access date]
IKMT samples and underwater video recordings collected during Drake Passage transits. Dataset Description: <p>IKMT samples and underwater video recordings collected during Drake Passage transits from LMG14-10, LMG15-04 and LMG15-09.</p> Methods and Sampling: <p><strong>Net Sampling:</strong></p>
<p>Open oblique net tows were made with a 1.8 m Isaacs-Kidd Midwater Trawl (IKMT), fitted with 505 um mesh and a protected cod end, fished from 0 to ~155m at ship speeds of ~2 kts.</p>
<p>During LMG14-10 and LMG15-04 an underwater video camera system was suspended from the IKMT spreader bar allowing video recordings of material being fished by the net at some stations (indicated in data log).&nbsp;</p>
Funding provided by NSF Office of Polar Programs (formerly NSF PLR) (NSF OPP) Award Number: PLR-1347911 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1347911
completed
Valerie Jean Loeb
Moss Landing Marine Laboratories
8317714476
8272 Moss Landing Road
Moss Landing
CA
950399647
US
Loeb@mlml.calstate.edu
pointOfContact
Jarrod A. Santora
University of California-Santa Cruz
jasantora@gmail.com
pointOfContact
asNeeded
Dataset Version: 1
Unknown
station
date
start_GMT
end_GMT
lat_deg
lat_min
lat
lon_deg
lon_min
lon
biogeographic_zone
DIEL
volume_filtered
SST
bottom_depth
wind_speed
wind_direction
tow_depth
underwater_video
notes
ISO_DateTime_UTC
GoPro Hero3+ Black Edition
theme
None, User defined
station
date
time begin
time_end
latitude
longitude
site description
diel
volume of water filtered
sea surface temperature
depth_bottom
wind_speed
wind_dir
depth
No BCO-DMO term
comments
ISO_DateTime_UTC
featureType
BCO-DMO Standard Parameters
Camera
instrument
BCO-DMO Standard Instruments
LMG1504
LMG1509
LMG1410
service
Deployment Activity
Drake Passage
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.
Pilot Study: Addition of Biological Sampling to Drake Passage Transits of the "L.M. Gould"
https://osprey.bco-dmo.org/project/683961
Pilot Study: Addition of Biological Sampling to Drake Passage Transits of the "L.M. Gould"
<p><em>PI supplied abstract:</em></p>
<p>A 50+ year warming trend in the Southern Ocean has been most dramatic in Drake Passage and likely impacts ecosystem structure here. Acoustic Doppler Current Profiler (ADCP) records from multiple NSF “L.M. Gould” supply transits of Drake Passage from 1999 to present demonstrate spatial and temporal variability in acoustics backscattering. Acoustics backscattering strength in the upper water column corresponds to zooplankton and nekton biomass that supports predator populations. However, for much of Drake Passage the identity of taxa contributing to this acoustically detected biomass is not known. This project would introduce a biological component to “L.M. Gould” transits of Drake Passage with the goal of determining the identity of taxa responsible for the backscattering records obtained by ADCP and relating these to higher trophic levels (seabird/marine mammal). Net sampling during spring and fall transits will permit assessment of diel and seasonal changes in the abundance and taxonomic composition of zooplankton and top predators represented between Patagonia and the Antarctic Peninsula. Net samples and depth-referenced video records taken in conjunction with ADCP profiles will permit the identification of the dominant acoustic backscatters in the 3 biogeographic regions represented here, the Subantarctic, Polar Frontal, and Antarctic Zones. The validity of dominant backscattering taxa in the Antarctic Zone will be tested by comparing the ADCP records with abundant zooplankton data collected off the Antarctic Peninsula during January-March 1999-2009 as well with long-term top predator surveys. The broader impacts also included cruise blogs to Moss Landing Marine Laboratories and Monterey Academy of Oceanographic Science (Monterey High School, Monterey CA) plus involvement with MAOS faculty and students providing first-hand data and insight into marine research in a near real-time format. The faculty used this opportunity to engage students in “real” science while focusing on implementing instruction using the Next Generation Science Standards.</p>
DrakeBioGould
largerWorkCitation
project
eng; USA
oceans
Drake Passage
-67.162
-54.7694
-65.1842
-54.0093
2014-10-29
2015-11-11
Drake Passage, South Shetland Islands
0
BCO-DMO catalogue of parameters from IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015
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/705774.rdf
Name: station
Units: unitless
Description: <p>Station where samples were taken</p>
http://lod.bco-dmo.org/id/dataset-parameter/705775.rdf
Name: date
Units: unitless
Description: <p>Date samples were taken; YYYY/MM/DD</p>
http://lod.bco-dmo.org/id/dataset-parameter/705776.rdf
Name: start_GMT
Units: unitless
Description: <p>Start time of net tow; HH:MM</p>
http://lod.bco-dmo.org/id/dataset-parameter/705777.rdf
Name: end_GMT
Units: unitless
Description: <p>End time of net tow; HH:MM</p>
http://lod.bco-dmo.org/id/dataset-parameter/705778.rdf
Name: lat_deg
Units: degrees minutes
Description: <p>Latitude; degrees (S)</p>
http://lod.bco-dmo.org/id/dataset-parameter/705779.rdf
Name: lat_min
Units: degrees minutes
Description: <p>Latitude; minutes</p>
http://lod.bco-dmo.org/id/dataset-parameter/705780.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude in decimal degrees</p>
http://lod.bco-dmo.org/id/dataset-parameter/705781.rdf
Name: lon_deg
Units: degrees minutes
Description: <p>Longitude; degrees (W)</p>
http://lod.bco-dmo.org/id/dataset-parameter/705782.rdf
Name: lon_min
Units: degrees minutes
Description: <p>Longitude; minutes</p>
http://lod.bco-dmo.org/id/dataset-parameter/705783.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude in decimal degrees</p>
http://lod.bco-dmo.org/id/dataset-parameter/705784.rdf
Name: biogeographic_zone
Units: unitless
Description: <p>Code for the biogeographic zone in which sampling took place: SAZ=Subantarctic Zone; PFZ=Polar Frontal Zone; AZ=Antarctic Zone; ACZ=Antarctic Coastal (Continental) Zone</p>
http://lod.bco-dmo.org/id/dataset-parameter/705785.rdf
Name: DIEL
Units: unitless
Description: <p>Indicates day night or twiglight sample collection on net deployment 1 hour before and after local sunrise and sunset.</p>
http://lod.bco-dmo.org/id/dataset-parameter/705786.rdf
Name: volume_filtered
Units: meters cubed
Description: <p>Volume of water filtered through the net</p>
http://lod.bco-dmo.org/id/dataset-parameter/705787.rdf
Name: SST
Units: celsius
Description: <p>Sea surface temperature</p>
http://lod.bco-dmo.org/id/dataset-parameter/705788.rdf
Name: bottom_depth
Units: meters
Description: <p>Bottom depth at sampling location</p>
http://lod.bco-dmo.org/id/dataset-parameter/705789.rdf
Name: wind_speed
Units: knots
Description: <p>Wind speed at time of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/705790.rdf
Name: wind_direction
Units: degrees
Description: <p>Wind direction at time of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/705791.rdf
Name: tow_depth
Units: meters
Description: <p>The depth at which the net tow took plac</p>
http://lod.bco-dmo.org/id/dataset-parameter/705792.rdf
Name: underwater_video
Units: unitless
Description: <p>Indicates whether videorecordings were made at each station and if so to what depths.</p>
http://lod.bco-dmo.org/id/dataset-parameter/705793.rdf
Name: notes
Units: unitless
Description: <p>Notes and observations</p>
http://lod.bco-dmo.org/id/dataset-parameter/705794.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Date/Time (UTC) ISO formatted</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
7651
https://darchive.mblwhoilibrary.org/bitstream/1912/23927/1/dataset-705556_net-tow-data__v1.tsv
download
https://doi.org/10.1575/1912/bco-dmo.705556.1
download
onLine
dataset
<p><strong>Net Sampling:</strong></p>
<p>Open oblique net tows were made with a 1.8 m Isaacs-Kidd Midwater Trawl (IKMT), fitted with 505 um mesh and a protected cod end, fished from 0 to ~155m at ship speeds of ~2 kts.</p>
<p>During LMG14-10 and LMG15-04 an underwater video camera system was suspended from the IKMT spreader bar allowing video recordings of material being fished by the net at some stations (indicated in data log).&nbsp;</p>
Specified by the Principal Investigator(s)
<p><strong>Wet Weight Displacement&nbsp;Volume: </strong><strong>&nbsp;</strong>Wet weight displacement volume measurements (minus gelatinous organisms, including&nbsp;salps) were made for all freshly collected samples.&nbsp; Additional wet weight displacement volume estimates were made for large and small sized zooplankton fractions, the separation of which is largely dependent on the ability to identify and adequately enumerate taxa.&nbsp; Maximum lengths of the small fraction generally were ≤ 10 mm (e.g., copepods, shelled pteropods, ostracods, larval euphausiids and other crustaceans).&nbsp; Due to their large&nbsp;length&nbsp;range chaetognaths were represented in both categories but are treated as part of the small fraction.&nbsp; Large taxa (e.g., ~10-20 mm) include postlarval euphausiids,&nbsp;amphipods&nbsp;and polychaetes. Wet weight displacement volumes determined separately for “extra large” (e.g., &gt;20 mm) postlarval myctophids and Antarctic krill (Euphausia&nbsp;superba) are included with the large&nbsp;taxa. &nbsp;</p>
<p><strong>Taxonomic Identification and&nbsp;Enumeration: </strong>&nbsp;The taxonomic identification (to species level if possible, abundance estimates (numbers m-2&nbsp;and numbers 1000 m-3) and length measurements of known sound scattering organisms were made for as many samples as possible while onboard.&nbsp; This was generally possible for samples collected during southbound transits and opportunistically in the Antarctic Coastal Zone.&nbsp; In order to provide data from the Antarctic Zone comparable to those from long-term&nbsp;data bases&nbsp;off the Antarctic Peninsula (e.g., Loeb et al., 2008, 2010; Loeb and Santora, 2013) all postlarval Antarctic krill (Euphausia&nbsp;superba) and&nbsp;salps&nbsp;(Salpa&nbsp;thompsoni) were removed and enumerated from samples &lt;2 L; for larger catches, abundance estimates were based on 1 to 2 L subsamples.&nbsp; All postlarval krill in samples with &lt;100 individuals were measured, sexed and staged according to Makarov &amp; Denys (1981); in larger&nbsp;samples&nbsp;at least 100 krill were analyzed.&nbsp; The 2&nbsp;salp&nbsp;life stages were enumerated and internal body lengths of each (Foxton, 1966) were measured to the nearest mm.&nbsp;</p>
<p>Because of time limitations during northbound transits, generally only the large size fractions could be processed onboard; as a consequence&nbsp;representative&nbsp;4% buffered formalin preserved aliquots of the small size fraction were analyzed at Moss Landing Marine Labs (MLML) following each cruise.&nbsp; Finer resolution identifications of abundant large taxa (e.g., similar euphausiid and pteropod species) in formalin-preserved samples were also made at MLML following completion of field efforts.&nbsp; Due to a combination of funding, time and/or expertise constraints, species identifications of various abundant small zooplankton categories (e.g., euphausiid larvae and copepods) were limited.</p>
<p><strong>BCO-DMO Data Processing Notes:</strong></p>
<p>-reformatted column names to comply with BCO-DMO standards<br />
-compiled each deployment into one table</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
GoPro Hero3+ Black Edition
GoPro Hero3+ Black Edition
PI Supplied Instrument Name: GoPro Hero3+ Black Edition PI Supplied Instrument Description:Used for underwater video recording Instrument Name: Camera Instrument Short Name:camera Instrument Description: All types of photographic equipment including stills, video, film and digital systems. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/311/
Cruise: LMG1504
LMG1504
ARSV Laurence M. Gould
Community Standard Description
International Council for the Exploration of the Sea
ARSV Laurence M. Gould
vessel
LMG1504
Kristen O'Brien
University of Alaska Fairbanks
Cruise: LMG1509
LMG1509
ARSV Laurence M. Gould
Community Standard Description
International Council for the Exploration of the Sea
ARSV Laurence M. Gould
vessel
LMG1509
Joshua Kohut
Rutgers University
Cruise: LMG1410
LMG1410
ARSV Laurence M. Gould
Community Standard Description
International Council for the Exploration of the Sea
ARSV Laurence M. Gould
vessel
ARSV Laurence M. Gould
Community Standard Description
International Council for the Exploration of the Sea
ARSV Laurence M. Gould
vessel