TemperateReefBase Geonetwork Catalogue
Nella Dan: AAMBER Cruise - Zooplankton and Krill data
This data were collected on the sixth Nella Dan voyage of a long term field survey project being conducted by the Australian Antarctic Division, to collect distribution, abundance and population structure data for the krill Euphausia superba in the Prydz Bay region, Antarctica.
This voyage, the Australian Antarctic Marine Biological Ecosystem Research 1986/1987 (AAMBER 86/87) cruise, operated between February and April 1987. During March, a survey of the krill population and zooplankton community was conducted, to determine the late summer distribution and abundance of krill, especially the larvae. This was done as a follow up to SIBEX II in mid-summer (Janurary) 1985. The major species investigated were Euphausia superba, Euphausia frigidia, Euphausia crystallorophias and Thysanoessa marcuria. Phytoplankton pigment analysis was also conducted at each CTD station site.
Simple
Identification info
- Alternate title
- Nella Dan: AAMBER Cruise - Zooplankton and Krill data
- Date (Publication)
- 1999-10-07
- Edition
- 1
Originator
Hosie, G.
Publisher
Australian Antarctic Division
Principal investigator
Collaborator
- Name
- CAASM Metadata
- Status
- Completed
Custodian
AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
- Topic category
-
- Biota
- Oceans
Extent
N
S
E
W
))
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 1987-03-07 1987-03-23
- Title
- AAMBER 86/87 cruise krill/zooplankton sampling data
- Date (Publication)
- 1991
- Citation identifier
- 79
Author
Hosie, G.W., Kitchener, J., Stolp, M., Cochran, T.G. and Williams, R.
- Name
- ANARE Research Notes
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS
- NASA/GCMD Earth Science Keywords
-
- MIDWATER TRAWLS
- TRAWL
- ECHO SOUNDERS
- NASA/GCMD Earth Science Keywords
-
- SHIPS
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- CEOS
- AMD
- NASA/GCMD Earth Science Keywords
-
- OCEAN > SOUTHERN OCEAN
- GEOGRAPHIC REGION > POLAR
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- The data are available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAMBER_zoo-krill when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Distributor
- Fees
- Free
- Planned available datetime
- 1999-10-07T00:00:00
- OnLine resource
-
GET DATA
Search the "RMT Trawl catch from the 1986/87 V7 AAMBER voyage" data collection
- OnLine resource
-
GET DATA
Search the "Historic krill sampling" data collection
- OnLine resource
-
VIEW RELATED INFORMATION
See the AAMBER voyage page - contains links to data and more information
- OnLine resource
-
VIEW RELATED INFORMATION > GENERAL DOCUMENTATION
Download the catch composition log from the AAMBER voyage
- OnLine resource
-
VIEW RELATED INFORMATION > GENERAL DOCUMENTATION
Download the trawl log from the AAMBER voyage
- OnLine resource
-
VIEW RELATED INFORMATION > GENERAL DOCUMENTATION
Download the krill morphometrics log from the AAMBER voyage
- OnLine resource
-
VIEW RELATED INFORMATION > PUBLICATIONS
Download a copy of ANARE Research Notes 79
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- This voyage is one of six which studied the abundance and disribution of Euphausia superba. This provided a good coverage of the area at varying season times and conditions. There are some differences in sampling sites due to logistical constraints and weather conditions. Data collection: A Rectangular Midwater Trawl (RMT 1+8) was used for the collection of larval and post larval (juvenile and adult) krill Euphausia superba, and other zooplankton. Three haul methods were used. At each station a shallow downward oblique haul was taken from the surface to 200m. At selected stations a deep downward oblique haul from 200m to 1000m was taken to collect early developmental stages of Euphausia superba. When krill swarms were located at particular depths (by a Simrad EK 120 echosounder), specific aimed horizontal tows were made. On-ship processing: This included removing specimens of Euphausia superba and other large and fragile zooplankton from the catch. All specimens were preserved in Steedman's solution until examination at the Antarctic Division laboratories. Krill swarm catches were weighed using a spring balance, and part of the catch (greater than 200 specimens) were preserved in Steedman's solution. Post-ship processing: This included classification of the RMT 8 post-larval krill into juvenile, male and female maturation stages, using the Makarov and Denys (1981) system. The body length (using a slide caliper) and body wet weight (using an electronic top-pan balance) were measured for each RMT 8 specimen. Non-krill zooplankton in the RMT 8 samples were identified, weighed and counted. The RMT 1 catches were sorted to separate the Euphausia superba larvae and other euphausiid species larvae from the remaining zooplankton. The euphausiid larvae were classified into developmental stages and counted under a dissecting microscope. Data are logically consistent, as oceanographic data (CTD measurements) and water collections for phytoplankton pigment analysis were also obtained at the same sampling sites as the krill and zooplankton hauls. A cruise track showing the sampling sites in available in: Hosie G. et al. (1991) AAMBER 86/87 cruise krill/zooplankton sampling data. Australian National Antarctic Research Expedition Research Notes 79.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2014-09-12 - record updated by Dave Connell.
Metadata
- Metadata identifier
- string/AAMBER_zoo-krill
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Australian Antarctic Division
Owner
AADC
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 9cc66e75-b7ca-4b5e-bc19-10839a7d1fda
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-04-08T11:17:14
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/AAMBER_zoo-krill
Point of truth for the metadata record
- Date info (Creation)
- 1999-10-07T00:00:00
- Date info (Last Update)
- 2014-09-22
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available