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Euphausiid abundance and size distribution (MOCNESS) from the ARSV Laurence M. Gould LMG0104, LMG0203 from the Southern Ocean, 2001-2002 (SOGLOBEC project) (NCEI Accession 0112167)

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This dataset contains biological and survey - biological data collected on ARSV Laurence M. Gould during cruises LMG0104 and LMG0203 in the South Atlantic Ocean, South Pacific Ocean, and Southern Ocean from 2001-05-01 to 2002-05-08. These data include abundance, depth_close, depth_open, stage, and taxon. The instruments used to collect these data include MOCNESS1. These data were collected by Dr Kendra L. Daly of University of South Florida as part of the "U.S. GLOBEC Southern Ocean (SOGLOBEC)" project and "U.S. GLOBal ocean ECosystems dynamics (U.S. GLOBEC)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2019-11-18.

The following is the text of the dataset description provided by BCO-DMO:

Euphausiid abundance + size distribution (MOCNESS) from LMGould

Dataset Description:
Euphausiid Abundance, Based on Life Stage and Size
Collected during the Process Cruises, Austral Autumn 2001 and 2002

Data Contributed By:
Kendra L. Daly
College of Marine Science
University of South Florida
140 Seventh Ave. S.
St. Petersburg, FL 33701
Phone: 727-553-1041
E-Mail: kdaly@marine.usf.edu

Net sample collections by: Meng Zhou, Yiwu Zhu, Ryan Dorland, Dan Mertes, and Joe Smith
Sample Analyses by: Jason Zimmerman, Alexander Timonin, Tatjana Semenova

Cruises:
Laurence M. Gould , 23 April - 6 June 2001 (LMG0104 cruise report), 18 net tows
Laurence M Gould , 7 April - 21 May 2002 (LMG0203 cruise report), 16 net tows
  • Cite as: Daly, Kendra L. (2013). Euphausiid abundance and size distribution (MOCNESS) from the ARSV Laurence M. Gould LMG0104, LMG0203 from the Southern Ocean, 2001-2002 (SOGLOBEC project) (NCEI Accession 0112167). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0112167. Accessed [date].
gov.noaa.nodc:0112167
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Distribution Formats
  • TSV
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2001-05-01 to 2002-05-08
Spatial Bounding Box Coordinates
West: -72.47
East: -67.307
South: -69.708
North: -66.029
Spatial Coverage Map
General Documentation
Associated Resources
  • Biological, chemical, physical, biogeochemical, ecological, environmental and other data collected from around the world during historical and contemporary periods of biological and chemical oceanographic exploration and research managed and submitted by the Biological and Chemical Oceanography Data Management Office (BCO-DMO)
    • NCEI Collection
      Navigate directly to the URL for data access and direct download.
  • Daly, K. (2008) Euphausiid abundance and size distribution (MOCNESS) from the ARSV Laurence M. Gould LMG0104, LMG0203 from the Southern Ocean, 2001-2002 (SOGLOBEC project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Dataset version 2008-07-31. https://doi.org/10.1575/1912/bco-dmo.2366.1
  • Parent ID (indicates this dataset is related to other data):
    • gov.noaa.nodc:BCO-DMO
Publication Dates
  • publication: 2013-08-19
  • revision: 2023-05-04
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
Acquisition Description:
Methods

Zooplankton abundance, vertical and horizontal distribution, and population structure were assessed using a 1 m 2 Multiple Opening and Closing Nets and Environmental Sampling System (MOCNESS) with nine nets having 333 µm mesh and environmental sensors of temperature, salinity and depth. The entire water column was sampled on the downcast using net # 0, which was not analyzed. The upper water column was typically sampled using nets 1 and 2 from 500 m to 200 m at 150 m depth intervals, nets 3 and 4 from 200 m to 100 m at 50 m depth intervals, and nets 5 to 8 from 100 m to the surface at 25 m depth intervals. Some tows were deployed down to 1000 m, and some tows were towed targeting krill swarms at irregular depths. Approximate locations of process study stations are shown in Fig. 1. More precise locations of the casts in Fig. 2.

Zooplankton samples were immediately preserved in 10% buffered formalin solution. All the large organisms (>15 mm) in the sample were removed and identified to taxa. The sample was then split to about 100 individuals of euphausiids. All euphausiids in the split were identified to species and life history stage and measured for length to the nearest 0.5 mm for larvae and to the nearest 1.0 mm for juvenile and adults. Next the sample was split to about 100 individuals of copepods. Copepods were identified to species and life history stage (female, male, copepodite V, or other copepodite). All other zooplankton in the split were identified to taxa and counted. For the Euchaetidae, we followed the designation of Park (1994) who ascribed the Antarctic species to the genus Paraeuchaeta . This data object ("krill") reports the abundance of each euphausiid species by life stage and size class. The companion data object "zooabund" reports the counts of zooplankton per subsample/split by taxa and life stage or size class.

Further methodology notes [05/07/08] from K. Daly:

My lab started the net sample analyses and we measured lengths of krill to either the nearest 0.25 mm for larvae or to the nearest 0.5 mm for older stages. As I recall, after we sent splits to the Russians to complete the sample analyses, they decided it took too long to do individual measurements and placed larvae into 0.5 mm length groups (3.0-3.4 mm) and the older stages to the nearest 1.0mm. Jason took his original measurements to 0.25mm and placed them in the 0.5 mm intervals used by the Russians. The 0.5 mm length bins (3.0-3.4; 3.5-3.9;) should be the same for all net tows.

For the epibiont and comment information, the occurrence of epibionts was much higher in 2001. This information is useful as a relative measure of percent occurrence. I have seen these cilates before, but they are episodic.

The comments primarily provide information on indirect development. The larvae were placed into a particular life history stage category, but they don't always have the exact number of telson spines, etc., typical of that stage. I reported this information in my 2004 DSR paper.

Greenwich Mean Time was local time + 4 hours.

Fig. 1. Approximate locations of process cruise stations in Marguerite Bay during austral autumn 2001 and 2002.

Fig. 2. Locations of MOCNESS stations for LMGould-0104 (2001) and LMGould-0203 (2002) cruises. Numbers correspond to the cast number.

In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Daly, Kendra L. (2013). Euphausiid abundance and size distribution (MOCNESS) from the ARSV Laurence M. Gould LMG0104, LMG0203 from the Southern Ocean, 2001-2002 (SOGLOBEC project) (NCEI Accession 0112167). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0112167. Accessed [date].
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Acknowledgments
  • Funding provided by NSF Antarctic Sciences (NSF ANT) Award Number: ANT-0196489 Award URL: http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0196489
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
BCO-DMO Standard Parameters Originator Parameter Names
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS BCO-DMO Platform Names Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS BCO-DMO Standard Instruments Global Change Master Directory (GCMD) Instrument Keywords Originator Instrument Names
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Place Names
Project keywords NODC PROJECT NAMES THESAURUS BCO-DMO Standard Programs BCO-DMO Standard Projects Global Change Master Directory (GCMD) Project Keywords Provider Cruise IDs Provider Funding Award Information
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Daly, Kendra L. (2013). Euphausiid abundance and size distribution (MOCNESS) from the ARSV Laurence M. Gould LMG0104, LMG0203 from the Southern Ocean, 2001-2002 (SOGLOBEC project) (NCEI Accession 0112167). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0112167. Accessed [date].
Data License
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
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  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2013-08-19T19:21:10Z - NCEI Accession 0112167 v1.1 was published.
  • 2023-05-04T07:02:12Z - NCEI Accession 0112167 was revised and v2.2 was published.
    Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS)
Platform
  • R/V Laurence M. Gould
Last Modified: 2024-01-28T14:00:09Z
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