http://lod.bco-dmo.org/id/dataset/3874
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
2013-02-06
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Zooplankton displacement volumes from MOCNESS tows from R/V Endeavor EN484, EN487 in the Gulf of Maine, 2010 (Krill GoME project)
2013-02-06
publication
2013-02-06
revision
BCO-DMO Linked Data URI
2013-02-06
creation
http://lod.bco-dmo.org/id/dataset/3874
Gareth Lawson
Woods Hole Oceanographic Institution
principalInvestigator
Peter H. Wiebe
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: Lawson, G., Wiebe, P. H. (2013) Zooplankton displacement volumes from MOCNESS tows from R/V Endeavor EN484, EN487 in the Gulf of Maine, 2010 (Krill GoME project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2013-02-06 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3874 [access date]
Zooplankton displacement volumes from MOCNESS tows in the Gulf of Maine Dataset Description: <p>Zooplankton displacement volumes from MOCNESS net tows in the Gulf of Maine in 2010.</p> Methods and Sampling: <p>A standard 1m^2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) was used to collect zooplankton in order to determine the taxonomic composition of the zooplankton in the study region and also to ground truth acoustic data collected with the HTI multi-frequency and Edgetech broadband systems. The MOCNESS has 9 nets with a 335 &micro;m mesh size that can sample different regions of the water column. The underwater unit used was #169.</p>
<p>In addition to the standard temperature and conductivity probes the system also had a beta-type strobe-light unit for reducing avoidance of the nets by some zooplankton, notably krill, and possibly small fish. The strobe system has two units each with 12 LED sets (LUXEON Rebel LED) with peak output between 490-520 nm. Two of the 24 LED sets were working inconsistently at the start of the sampling. The LEDs are powered by the MOCNESS battery and their pulse width, amplitude, flash rate period, and on/off are controlled by the MOCNESS software. For EN484, the pulse width was 2 ms, the relative amplitude was 99%, and the flash interval was 100 ms. For EN487, the pulse width was 40 ms, the relative amplitude was 99%, and the flash interval was 1000 ms.</p>
<p>The MOCNESS was launched and recovered from the stern A-frame. Samples were brought into the wet lab for processing. Net 0 typically went form the surface to depth and nets 1-8 fished at discrete depths from depth to the surface.&nbsp; Nets 1-8 were preserved in buffered formalin. Often the net 0 samples were so large that they would have taken multiple jars so either the entirety or a large fraction was frozen in the -80C freezer, in the hopes that they might be useful.</p>
<p><b>Displacement Volume Measurement:</b></p>
<p>Samples were poured into a 1000 ml graduated cylinders and measured.&nbsp; Then the sample was poured through a 330 um sieve, allowed to drain, and the volume of water measured.&nbsp; The difference between the two volume measurements was the displacement volume.&nbsp; The displacement volume of each sample was divided by the volume filtered by the net (m^3) and the result is reported here in units of cc/m^3.&nbsp; Animals larger than 5 cc were measured individually and reported here.</p>
<pre>
</pre>
<p>&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0928801 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0928801
completed
Gareth Lawson
Woods Hole Oceanographic Institution
+1 508 289 3713
Woods Hole Oceanographic Institution Redfield 1-32, MS#34
Woods Hole
MA
02543
U.S.A.
glawson@whoi.edu
pointOfContact
Peter H. Wiebe
Woods Hole Oceanographic Institution
508-289-2313
Biology Department Redfield 2-26 MS #33
Woods Hole
MA
02543-1049
USA
pwiebe@whoi.edu
pointOfContact
asNeeded
Unknown
cruise_id
date
tow
site
lat_start
lon_start
lat_end
lon_end
yrday_local
time_local
day_night
net
depth_range
depth_open
depth_close
depth_mid
depth_interval
vol_filt
strobe
disp_vol_m3
comments_sample
zoop_gt5cc_id
disp_vol_lg
dominants
MOCNESS
theme
None, User defined
Cruise identfier
date
tow
site
latitude at start time of measurement
longitude at start time of measurement
latitude at end time of measurement
longitude at end time of measurement
day of year and decimal time (local time zone)
time_local
No BCO-DMO term
net
depth_range
depth_open
depth_close
depth_mid
depth_interval
volume of water filtered
featureType
BCO-DMO Standard Parameters
Hydroacoustic Technology Incorporated echosounder
MOCNESS
instrument
BCO-DMO Standard Instruments
EN484
EN487
service
Deployment Activity
Gulf of Maine, Georges Bank, 42 North 67.5 West
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.
Biological and Physical Determinants of Euphausiid Aggregation, Behavior, and Interaction with Higher Predators at an Abrupt Topographical Feature in the Gulf of Maine
https://osprey.bco-dmo.org/project/2129
Biological and Physical Determinants of Euphausiid Aggregation, Behavior, and Interaction with Higher Predators at an Abrupt Topographical Feature in the Gulf of Maine
<p>from the NSF award abstract:</p>
<h3>Distribution, Aggregation, and Ecological Importance of Euphausids in the Gulf of Maine Region</h3>
<p>Zooplankton are key members of marine ecosystems, but the biological and physical factors governing their distribution and aggregation are not fully understood, especially at the continental shelf break and margins of the deep basins of the shelf. Euphausiids are an important group of crustacean zooplankton in North Atlantic pelagic food webs and represent an interesting model species for the study of zooplankton aggregation due to their strong swimming capabilities and active aggregative behaviors. This project will address the hypotheses that the formation and variability of euphausiid aggregations along the northern flank of Georges Bank and the southern portion of the Gulf of Maine during fall relate to the interaction of physical concentration mechanisms with local topography and with plasticity in diel vertical migration and active aggregative behaviors, and that this plasticity arises from variability in food availability and predation by herring. These hypotheses will be addressed through a field program employing a comprehensive array of sensors, including both conventional narrowband and recently-developed broadband acoustic systems to sample the euphausiids, and a variety of other acoustic, optical, net, and other sampling devices to quantify their physical and biological environment. These sensors will be used in an inventive combination of (1) coarse-scale grid surveys to characterize along- and across-slope variability in the distribution of euphausiids, their predators, other zooplankton, phytoplankton, and physical conditions (e.g., the flow field), and (2) fine-scale adaptive surveys used to track individual euphausiid aggregations and observe how their three-dimensional structure and vertical position vary with changing environmental conditions. Repeat surveys will be timed to capitalize on known or likely variations in the flow field, food availability, light levels, and predation.</p>
Krill GoME
largerWorkCitation
project
eng; USA
oceans
Gulf of Maine, Georges Bank, 42 North 67.5 West
2013-02-06
Gulf of Maine; Georges Bank
0
BCO-DMO catalogue of parameters from Zooplankton displacement volumes from MOCNESS tows from R/V Endeavor EN484, EN487 in the Gulf of Maine, 2010 (Krill GoME 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/32882.rdf
Name: cruise_id
Units: alphanumeric
Description: <p>cruise identification</p>
http://lod.bco-dmo.org/id/dataset-parameter/32883.rdf
Name: date
Units: yyyymmdd
Description: <p>local date of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/32884.rdf
Name: tow
Units: integer
Description: <p>MOCNESS tow number</p>
http://lod.bco-dmo.org/id/dataset-parameter/32885.rdf
Name: site
Units: text
Description: <p>location of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/32886.rdf
Name: lat_start
Units: decimal degrees
Description: <p>latitude at start of cruise; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/32887.rdf
Name: lon_start
Units: decimal degrees
Description: <p>longitude at start of cruise; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/32888.rdf
Name: lat_end
Units: decimal degrees
Description: <p>latitude at end of cruise; north is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/32889.rdf
Name: lon_end
Units: decimal degrees
Description: <p>longitude at end of cruise; east is positive</p>
http://lod.bco-dmo.org/id/dataset-parameter/32890.rdf
Name: yrday_local
Units: nd
Description: <p>local day and decimal time; e.g. 326.5 for the 326th day of the year November 22 at 1200 hours (noon)</p>
http://lod.bco-dmo.org/id/dataset-parameter/32891.rdf
Name: time_local
Units: HHMM
Description: <p>local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/32892.rdf
Name: day_night
Units: text
Description: <p>whether cruise was taken in day or night</p>
http://lod.bco-dmo.org/id/dataset-parameter/32893.rdf
Name: net
Units: integer
Description: <p>net number</p>
http://lod.bco-dmo.org/id/dataset-parameter/32894.rdf
Name: depth_range
Units: meters
Description: <p>depth range of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/32895.rdf
Name: depth_open
Units: meters
Description: <p>depth where net opened</p>
http://lod.bco-dmo.org/id/dataset-parameter/32896.rdf
Name: depth_close
Units: meters
Description: <p>depth where net closed</p>
http://lod.bco-dmo.org/id/dataset-parameter/32897.rdf
Name: depth_mid
Units: meters
Description: <p>mid-depth of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/32898.rdf
Name: depth_interval
Units: meters
Description: <p>depth interval</p>
http://lod.bco-dmo.org/id/dataset-parameter/32899.rdf
Name: vol_filt
Units: cubic meters
Description: <p>volume filtered by net</p>
http://lod.bco-dmo.org/id/dataset-parameter/32900.rdf
Name: strobe
Units: text
Description: <p>whether strobe light was firing while the net was open</p>
http://lod.bco-dmo.org/id/dataset-parameter/32901.rdf
Name: disp_vol_m3
Units: cc/meter^3
Description: <p>displacement volume per cubic meter</p>
http://lod.bco-dmo.org/id/dataset-parameter/32902.rdf
Name: comments_sample
Units: text
Description: <p>comments pertaining to the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/32903.rdf
Name: zoop_gt5cc_id
Units: text
Description: <p>identification of animals > 5cc</p>
http://lod.bco-dmo.org/id/dataset-parameter/32904.rdf
Name: disp_vol_lg
Units: cc
Description: <p>displacement volume of large animals</p>
http://lod.bco-dmo.org/id/dataset-parameter/32905.rdf
Name: dominants
Units: text
Description: <p>dominant zooplankton in the sample. An asterisk (*) means this species was especially abundant.</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
12675
https://datadocs.bco-dmo.org/file/ZZZgK7rF8pnDL1/disp_vols_GoM.csv
disp_vols_GoM.csv
Primary data file for dataset ID 3874
download
https://osprey.bco-dmo.org/dataset/3874/data/download
download
onLine
dataset
<p>A standard 1m^2 Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) was used to collect zooplankton in order to determine the taxonomic composition of the zooplankton in the study region and also to ground truth acoustic data collected with the HTI multi-frequency and Edgetech broadband systems. The MOCNESS has 9 nets with a 335 &micro;m mesh size that can sample different regions of the water column. The underwater unit used was #169.</p>
<p>In addition to the standard temperature and conductivity probes the system also had a beta-type strobe-light unit for reducing avoidance of the nets by some zooplankton, notably krill, and possibly small fish. The strobe system has two units each with 12 LED sets (LUXEON Rebel LED) with peak output between 490-520 nm. Two of the 24 LED sets were working inconsistently at the start of the sampling. The LEDs are powered by the MOCNESS battery and their pulse width, amplitude, flash rate period, and on/off are controlled by the MOCNESS software. For EN484, the pulse width was 2 ms, the relative amplitude was 99%, and the flash interval was 100 ms. For EN487, the pulse width was 40 ms, the relative amplitude was 99%, and the flash interval was 1000 ms.</p>
<p>The MOCNESS was launched and recovered from the stern A-frame. Samples were brought into the wet lab for processing. Net 0 typically went form the surface to depth and nets 1-8 fished at discrete depths from depth to the surface.&nbsp; Nets 1-8 were preserved in buffered formalin. Often the net 0 samples were so large that they would have taken multiple jars so either the entirety or a large fraction was frozen in the -80C freezer, in the hopes that they might be useful.</p>
<p><b>Displacement Volume Measurement:</b></p>
<p>Samples were poured into a 1000 ml graduated cylinders and measured.&nbsp; Then the sample was poured through a 330 um sieve, allowed to drain, and the volume of water measured.&nbsp; The difference between the two volume measurements was the displacement volume.&nbsp; The displacement volume of each sample was divided by the volume filtered by the net (m^3) and the result is reported here in units of cc/m^3.&nbsp; Animals larger than 5 cc were measured individually and reported here.</p>
<pre>
</pre>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
<p><b>Related information:</b></p>
<p>Wiebe, P.H., K.H. Burt, S.H. Boyd, and A.W. Morton, A multiple opening-closing net and environmental sensing system for sampling zooplankton, J. Mar. Res., 34, 312-326, 1976.<br />
<br />
Wiebe, P.H., A.W. Morton, A.M. Bradley, J.E. Craddock, T.J. Cowles, V.A. Barber, R.H. Backus, and G.R. Flierl, New developments in the MOCNESS, an apparatus for sampling zooplankton and micronekton, Mar. Biol., 87, 313-323, 1985.</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
PI Supplied Instrument Name: Instrument Name: Hydroacoustic Technology Incorporated echosounder Instrument Short Name:HTI Instrument Description: The Hydroacoustic Technology Inc. (HTI) multi-frequency system is a towed digital split-beam/single-beam hydroacoustic system designed specifically to assess the abundance and distribution of fish and plankton. Digital signal processing hardware is combined with a MS Windows2000/XP -based user interface to produce results in real time. (http://www.htisonar.com/multi_frequency_echo_sounder.htm) Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/FFES/
MOCNESS
MOCNESS
PI Supplied Instrument Name: MOCNESS PI Supplied Instrument Description:1m^2 MOCNESS with 9 nets, 330 micron 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/
Cruise: EN484
EN484
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel
EN484
Gareth Lawson
Woods Hole Oceanographic Institution
http://bcodata.whoi.edu/Krill_GoME/EN484_Cruise_Report_FINAL.pdf
Report describing EN484
Cruise: EN487
EN487
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel
EN487
Gareth Lawson
Woods Hole Oceanographic Institution
http://bcodata.whoi.edu/Krill_GoME/EN487_Cruise_Report_FINAL.pdf
Report describing EN487
R/V Endeavor
Community Standard Description
International Council for the Exploration of the Sea
R/V Endeavor
vessel