http://lod.bco-dmo.org/id/dataset/3904
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
2013-04-02
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Zooplankton biovolumes from R/V Connecticut, SSV Corwith Cramer, CT2010, C223A, C230A, C235A, C241A from Atlantis and Veatch Canyons, Atlantic Ocean from 2009-2012 (Canyon Krill project)
2013-04-02
publication
2013-04-02
revision
BCO-DMO Linked Data URI
2013-04-02
creation
http://lod.bco-dmo.org/id/dataset/3904
Gareth Lawson
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. (2013) Zooplankton biovolumes from R/V Connecticut, SSV Corwith Cramer, CT2010, C223A, C230A, C235A, C241A from Atlantis and Veatch Canyons, Atlantic Ocean from 2009-2012 (Canyon Krill project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Version Date 2013-04-02 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3904 [access date]
Zooplankton biovolumes from Atlantis and Veatch Canyons, 2009 to 2012 Dataset Description: <p>Zooplankton displacement volumes from MOCNESS and Tucker Trawl net tows in and around Atlantis and Veatch Canyons south of Cape Cod.</p> Methods and Sampling: <p>CT2010: 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>SV/Cramer cruises: These are Tucker Trawl samples collected on annual 'JP new student cruises'.&nbsp;</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>
Funding provided by Office of Naval Research (ONR) Award Number: N00014-12-10898
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
asNeeded
Unknown
cruise_id
date_local
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
disp_vol_m3
comments_sample
zoop_gt5cc_id
disp_vol_lg
dominants
inst
MOCNESS
Tucker Trawl
theme
None, User defined
Cruise identifier
date_local
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
instrument
featureType
BCO-DMO Standard Parameters
Hydroacoustic Technology Incorporated echosounder
MOCNESS
Tucker Trawl
instrument
BCO-DMO Standard Instruments
CT2010
C223A
C230A
C235A
C241A
service
Deployment Activity
Southern New England Shelf and Slope Water
Atlantis Canyon
Atlantis Canyon, mouth
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.
Canyon Krill
https://osprey.bco-dmo.org/project/2262
Canyon Krill
<p>Study of the krill populations in and around Atlantis and Veatch Canyons along the Slope Waters south of Cape Cod. Zooplankton samples were collected with MOCNESS nets on th RV/Connecticut in 2010 and with a Tucker Trawl annually on the SVV/Corwith Cramer as part of the MIT/WHOI Joint Program new student cruise. The RV/Conncecticut cruise included broadband acoustics measurements of the water column to be correlated with the net samples.</p>
<p>From poroposal:</p>
<p><b>OBJECTIVES:</b><br />
The proposed work seeks to understand how physical forcing interacting with local bathymetry and with euphausiid active behaviors leads to the formation, persistence, and availability to predators of euphausiid aggregations in the deep canyons of the New England continental shelf break, using newly-available broadband acoustic scattering techniques. The specific objectives are:<br />
1. To identify and track a euphausiid aggregation in a shelf break canyon in order to quantify changes in aggregation structure and position associated with variations in environmental conditions. Specifically, we will address the hypothesis that the formation and variability of euphausiid aggregations in such canyons relate to the interaction of the flow field, especially upwelling, with the sloping canyon topography and with the euphausiids’ vertical movements and active aggregative behaviors.<br />
2. To test and demonstrate the power of newly-available broadband acoustic scattering techniques for remotely discriminating euphausiids from other sources of acoustic scattering and making accurate and highresolution estimates of euphausiid abundance and size.</p>
<p><b>METHODOLOGY:</b><br />
To achieve these objectives, we propose an innovative and comprehensive field program targeting Atlantis Canyon, southwest of Georges Bank. An initial 24-hour 'canyon' survey will be conducted to characterize the overall distribution of euphausiids, other zooplankton (especially copepods), higher predators, and the physical environment. This will be followed by a 48-hour 'tracking' survey of an individual euphausiid aggregation. Surveys will be conducted in September 2010, timed to occur shortly after the Northeast Fisheries Science Center bottom trawl survey of the greater region. In both survey modes, the primary sampling instrument will be a broadband acoustic scattering system (40-600 kHz). Broadband measurements, supplemented by measurements from a more traditional narrowband multi-frequency acoustic system (43, 120, 200, 420 kHz), will be used to quantify the abundance, size, and aggregation structure of euphausiids, as well as the abundance of fish predators and other zooplankton (e.g., copepods). These acoustic estimates of biological quantities will be validated via direct samples collected concurrently with a depth-stratified net system and an image-forming optical system. Characterization of the physical environment and flow field will be achieved via an Acoustic Doppler Current Profiler (ADCP) and a Conductivity-Temperature-Depth (CTD) system also equipped with a fluorometer to estimate the abundance of phytoplankton. During analysis, measurements of the characteristics, movements, and distribution of euphausiid aggregations will be related to these concurrent measurements of the physical and biological environment.</p>
<p><b>RATIONALE:</b><br />
Euphausiids are common crustacean members of North Atlantic pelagic ecosystems, but their ecological role in the waters off New England is only poorly understood. Previous studies in the Gulf of Maine region have suggested that euphausiids (especially Meganyctiphanes norvegica and Thysanoessa spp.) can be locally abundant and a key prey item for a variety of higher predators, including commercially-exploited fish and squid. Euphausiids are also notable among zooplankton for their strong swimming capabilities and occurrence in dense aggregations; the formation of such aggregations is thought to be instrumental in determining the availability of euphausiids to higher predators. Overall, however, relatively little is known about the biological and physical processes leading to the formation and persistence of euphausiid aggregations, the interaction of euphausiids with their predators, and the overall significance of euphausiids in the New England Shelf/Slope ecosystem.</p>
<p>Large and dense aggregations of euphausiids have been observed in the canyons of the New England shelf break. The continental shelf break represents a frontier region in current understanding of the dynamics of the western North Atlantic Ocean and its inhabitants, and this project is motivated by the hypothesis advanced in the literature that these aggregations play an important role in subsidizing the productivity of commercial fish and squid stocks in shallower reaches of the shelf. By addressing the bio-physical factors that lead to the aggregation of euphausiids and that determine their availability to higher predators in these canyon regions, the proposed work will take a necessary first step towards defining the essential habitat of fish predators that target euphausiids and quantifying their interaction for the development of ecosystem-based management models. Beneficiaries of the project thus include scientists and managers with National Marine Fisheries Service, the fishing industry, and society as a whole. The project furthermore will demonstrate the feasibility of using newly-available broadband acoustic scattering techniques for quantifying the abundance and size of euphausiids and other pelagic animals, which we anticipate will be of substantial use in the monitoring of marine pelagic habitats globally.<br />
</p>
Canyon Krill
largerWorkCitation
project
eng; USA
oceans
Southern New England Shelf and Slope Water; Atlantis Canyon; Atlantis Canyon, mouth
2013-04-02
NW Atlantic slope canyons
0
BCO-DMO catalogue of parameters from Zooplankton biovolumes from R/V Connecticut, SSV Corwith Cramer, CT2010, C223A, C230A, C235A, C241A from Atlantis and Veatch Canyons, Atlantic Ocean from 2009-2012 (Canyon Krill 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/33530.rdf
Name: cruise_id
Units: alphanumeric
Description: <p>cruise identification</p>
http://lod.bco-dmo.org/id/dataset-parameter/33531.rdf
Name: date_local
Units: yyyymmdd
Description: <p>local date of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/33532.rdf
Name: tow
Units: integer
Description: <p>MOCNESS tow number</p>
http://lod.bco-dmo.org/id/dataset-parameter/33533.rdf
Name: site
Units: text
Description: <p>location of tow</p>
http://lod.bco-dmo.org/id/dataset-parameter/33534.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/33535.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/33536.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/33537.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/33538.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/33539.rdf
Name: time_local
Units: HHMM
Description: <p>local time</p>
http://lod.bco-dmo.org/id/dataset-parameter/33540.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/33541.rdf
Name: net
Units: integer
Description: <p>net number</p>
http://lod.bco-dmo.org/id/dataset-parameter/33542.rdf
Name: depth_range
Units: meters
Description: <p>depth range of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/33543.rdf
Name: depth_open
Units: meters
Description: <p>depth where net opened</p>
http://lod.bco-dmo.org/id/dataset-parameter/33544.rdf
Name: depth_close
Units: meters
Description: <p>depth where net closed</p>
http://lod.bco-dmo.org/id/dataset-parameter/33545.rdf
Name: depth_mid
Units: meters
Description: <p>mid-depth of sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/33546.rdf
Name: depth_interval
Units: meters
Description: <p>depth interval</p>
http://lod.bco-dmo.org/id/dataset-parameter/33547.rdf
Name: vol_filt
Units: cubic meters
Description: <p>volume filtered by net</p>
http://lod.bco-dmo.org/id/dataset-parameter/33548.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/33549.rdf
Name: comments_sample
Units: text
Description: <p>comments pertaining to the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/33550.rdf
Name: zoop_gt5cc_id
Units: text
Description: <p>identification of animals > 5cc</p>
http://lod.bco-dmo.org/id/dataset-parameter/33551.rdf
Name: disp_vol_lg
Units: cc
Description: <p>displacement volume of large animals</p>
http://lod.bco-dmo.org/id/dataset-parameter/33552.rdf
Name: dominants
Units: text
Description: <p>dominant zooplankton in the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/33553.rdf
Name: inst
Units: text
Description: <p>The instrument used to make zooplankton collections: MOC = MOCNESS 1m^2; TT = Tucker Trawl.</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
17690
https://datadocs.bco-dmo.org/file/EKKyg3mT6y065q/disp_vols_Canyons.csv
disp_vols_Canyons.csv
Primary data file for dataset ID 3904
download
https://osprey.bco-dmo.org/dataset/3904/data/download
download
onLine
dataset
<p>CT2010: 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>SV/Cramer cruises: These are Tucker Trawl samples collected on annual 'JP new student cruises'.&nbsp;</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>
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:1 m^2 MOCNESS with 335 micron mesh, 9 nets. 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/
Tucker Trawl
Tucker Trawl
PI Supplied Instrument Name: Tucker Trawl PI Supplied Instrument Description:1 m^2 mouth opening with 335 micron mesh and 3 nets. Instrument Name: Tucker Trawl Instrument Short Name:Tucker Trawl Instrument Description: The original Tucker Trawl, a net with a rectangular mouth opening first built in 1951 by G.H. Tucker, was not an opening/closing system, but shortly thereafter it was modified so that it could be opened and closed. The original had a 183 cm by 183 cm flexible rectangular mouth opening 914 cm long net with 1.8 cm stretched mesh for the first 457 cm and 1.3 cm mesh for last 457 cm. 152 cm of coarse plankton or muslin netting lined the end of the net. Tucker designed the net to collect animals associated with the deep scattering layers, principally euphausiids, siphonophores, and midwater fish. (from Wiebe and Benfield, 2003). Currently used Tucker Trawls usually have 1-m2 openings and can have a single net or multiple nets on the frame. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/NETT0161/
Cruise: CT2010
CT2010
R/V Connecticut
R/V Connecticut
vessel
CT2010
Gareth Lawson
Woods Hole Oceanographic Institution
Cruise: C223A
C223A
SSV Corwith Cramer
Community Standard Description
International Council for the Exploration of the Sea
SSV Corwith Cramer
vessel
Cruise: C230A
C230A
SSV Corwith Cramer
Community Standard Description
International Council for the Exploration of the Sea
SSV Corwith Cramer
vessel
Cruise: C235A
C235A
SSV Corwith Cramer
Community Standard Description
International Council for the Exploration of the Sea
SSV Corwith Cramer
vessel
Cruise: C241A
C241A
SSV Corwith Cramer
Community Standard Description
International Council for the Exploration of the Sea
SSV Corwith Cramer
vessel
R/V Connecticut
R/V Connecticut
vessel
SSV Corwith Cramer
Community Standard Description
International Council for the Exploration of the Sea
SSV Corwith Cramer
vessel