TemperateReefBase Geonetwork Catalogue
Nella Dan: ADBEX II Cruise - Krill and Zooplankton data
This dataset contains results from the Antarctic Division BIOMASS Experiment II (ADBEX II) cruise of the Nella Dan. This is the third cruise of six, and follows the ADBEX I cruise made during late 1982. ADBEX II was to have been an international experiment, Second International BIOMASS Experiment I (SIBEX I), in cooperation with Japan, South Africa and France, however due to the delay of a supply program Australia's participation was cancelled. ADBEX II is the result of a reduced sampling program carried out during the resupply of Davis and Mawson stations. Surveys of krill and other zooplankton were taken off Antarctica in the Australian sector (Mawson to Davis region) and Prydz Bay in January 1984. Species identity and abundance data were obtained. The major species investigated were Euphausia superba, Euphausia frigidia, Euphausia crystallorophias and Thysanoessa marcuria. Other pteropods and cephalopods were also studied. Results from hydroacoustic surveys of krill biomass were also obtained, as well as CTD and chlorophyll data. Summary results are listed in the documentation.
Simple
Identification info
- Alternate title
- Nella Dan: ADBEX II Cruise - Krill and Zooplankton data
- Date (Publication)
- 1999-10-07
- Edition
- 1
Originator
Hoise, G.
Publisher
Australian Antarctic Data Centre
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
- 1984-01-16 1984-02-06
- Title
- ADBEX II cruise krill/zooplankton sampling data.
- Date (Publication)
- 1984
- Citation identifier
- 23
Author
Ikeda, T., Hosie, G. and Kirkwood, J.
- Name
- Australian National Antarctic Research Expedition Research Notes
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES
- EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS
- Keywords
-
- Nella Dan
- ADBEX II
- Zooplankton
- 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
- Raw data are no longer available - summarised data are available in the ANARE Research Note at 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=ADBEX_II_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
- Units of distribution
- MB
- Transfer size
- 2.4
- Distribution format
-
- OnLine resource
-
VIEW RELATED INFORMATION > PUBLICATIONS
Download the ANARE Research Note
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset
Resource lineage
- Statement
- The stations provide a fairly complete coverage. This cruise is the third in a series of six cruises, providing a good coverage of the area over different seasons and conditions. This cruise was to have been a more detailed experiment in collaboration with Japan, South Africa and France. Due to resupply problems, sampling had to be reduced. Data collection: Two methods were used for sample collection. A rectangular midwater trawl net (RMT8) was used for the collection of juvenile and adult krill, Euphausia superba. Horizontal tows were also made were krill swarms were located using a Simrad EK 120 echo-sounder. Oblique tows using bongo nets were used to collect krill larvae. Ship-board processing: The large and fragile zooplankton were initially separated from the rest of the specimens, and all specimens were preserved in Steedman's solution. Krill catches from swarms were weighed using a clock-faced spring balance, and part of the catches (greater than 200 specimens) were preserved in Steedman's solution. Post-ship processing: The RMT8 krill samples were sorted into juvenile, male and female, and body length (using a slide caliper) and body wet weight (using a Mettler top-pan balance) were measured. Male and female Krill were further classified into maturation stages according to the system of Makarov and Denys (1981). Non-krill zooplankton in the RMT8 samples were identified to species to the lowest possible taxonomic level. Specimens of juvenile and adult krill were collected using the bongo net. These specimens were used to obtain supplementary body length and maturation stage data, but not for quantitative calculation of biomass or density. Euphausiid larvae were sorted from the bongo net samples, and identification was based on Makarov (1980). The larvae of Euphausia superba and Euphausia crystallorophias raised from eggs in the laboratory were also used as a reference for identification. Logically consistent. Different nets were used to establish consistency and eliminate bias to a particular size or type of specimen. Physical and chemical oceanography was also recorded at a number of stations, providing consistency between the oceanography and biology data. Euphausia superba and Euphausia crystallorophias larvae raised from eggs in the laboratory were used as a reference for catch larvae identification, as well as published material. Data was collected during a supply cruise to the Australian stations Davis and Mawson, and hence it is likely that sampling stations were taken fairly opportunistically, and not always at the best locations.
- Hierarchy level
- Dataset
- Maintenance and update frequency
- As needed
- Maintenance note
- 2014-11-25 - record updated by Dave Connell to add a link to the ANARE Research Note.
Metadata
- Metadata identifier
- string/ADBEX_II_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
- bd0844b1-eb8e-4d1c-8536-3ebe274da487
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2015-11-30T04:02:30
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/ADBEX_II_krill
Point of truth for the metadata record
- Date info (Creation)
- 1999-10-07T00:00:00
- Date info (Last Update)
- 2017-04-26
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