Nella Dan: SIBEX II Cruise - Krill and zooplankton data

This dataset contains results from the Second International BIOMASS Experiment II (SIBEX II) cruise of the Nella Dan, January 1985. This cruise is the fourth cruise out of a series of six, investigating the distribution, abundance and population structure of krill Euphausia superba in the Prydz Bay region, Antarctica. SIBEX II was co-ordinated with South Africa, Japan and France, and 66 grid sampling stations covered an area from 58 degrees to 93 degrees East and from 60 degrees South to the Antarctic coast. At each sampling station, surveys of krill and other zooplankton were taken, as well as a CTD cast and water collection for phytoplankton pigment, nutrients and primary production measurement. 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, as well as results from hydroacoustic surveys of krill biomass. Summary results are listed in the documentation.


The fields in this dataset are:

species

Station Number

Haul Type

RMT

Biomass

Weight

Flowmeter

Latitude

Longitude

Time

Date

Ice

Sea State

Density

Sea Floor

Maturity


This dataset was updated by Angela McGaffin. This download file also contains the original dataset provided in 2007. There are four files available:


SIBEX_II_krill.xls (original file)

sibex2_krill_morphometrics.xslx

sibex2_station_data.xslx

sibex2_zooplankton_corrected.xls


A minor data update took place on 202211-03 to add a scanned copy of the original acoustics log.

Simple

Identification info

Alternate title
Nella Dan: SIBEX II Cruise - Krill and zooplankton data
Date (Publication)
2022-11-03
Edition
2
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.26179/5d26d521948d4

Originator

Hosie, G.

Publisher

Australian Antarctic Data Centre

Principal investigator

HOSIE, GRAHAM
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Collaborator

HOSIE, GRAHAM
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/SIBEX_II_krill

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
1985-01-04 1985-01-26

Extent

Description
Vertical Extent - Depth

Vertical element

Minimum value
0
Maximum value
1341
Identifier
urn:x-ogc:def:cs:EPSG:6498
Name
Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:113
Name
depth
Title
SIBEX II cruise krill/zooplankton sampling data.
Date (Publication)
1986
Citation identifier
32

Author

Ikeda T. et al.
Name
Australian National Antarctic Research Expedition Research Notes
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > EUPHAUSIIDS (KRILL)
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > ARTHROPODS > CRUSTACEANS > AMPHIPODS
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/INVERTEBRATES > SEGMENTED WORMS (ANNELIDS) > BRISTLE WORMS
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON
Keywords
  • SIBEX II
  • zooplankton
  • species
  • fish
  • krill
  • amphipods
  • Haul Type
  • Station Number
  • gastropods
  • RMT
  • polychaetes
  • Weight
  • Latitude
  • Longitude
  • Flowmeter
  • Biomass
  • Date
  • Time
  • Density
  • Sea State
  • Ice
  • Maturity
  • Sea Floor
NASA/GCMD Earth Science Keywords
  • TRAWL
  • MIDWATER TRAWLS
NASA/GCMD Earth Science Keywords
  • SHIPS
  • LABORATORY
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • CEOS
  • AMD
NASA/GCMD Earth Science Keywords
  • OCEAN > SOUTHERN OCEAN
  • GEOGRAPHIC REGION > POLAR
  • CONTINENT > ANTARCTICA

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
These data are publicly available for download from the provided URL. A pdf copy of the referenced article is also available for download from the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

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=SIBEX_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
2022-11-03T00:00:00

Distributor

Fees
Free
Planned available datetime
2022-11-03T00:00:00
Units of distribution
MB
Transfer size
115
Distribution format
  • excel, PDF

Units of distribution
MB
Transfer size
5.5
Distribution format
  • pdf

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download point for the dataset

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download the ANAARE Research Note

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Resource lineage

Statement
This cruise provides data from the fourth of six cruises, which provides a good coverage of the area over varying seasons and conditions. Data collection: A rectangular midwater trawl net (RMT8+1) was used for the collection of larval and post larval krill Euphausia superba. 66 stations were completed. At each station, a shallow oblique haul, from 0 to 200 m, was made. At every third station a deep haul, from 0 to 1000 m, was made. Horizontal tows were also made when krill swarms were located at a particular depth, using a Simrad EK 120 echo sounder. Onboard-ship processing: Large and fragile specimens were removed from the main catch, and all specimens were preserved in Steedman's solution. Krill catches from swarms were weighed using a clock-faced spring balance, and at least 200 species from each catch were preserved in Steedman's solution. Post-ship processing: The RMT8 krill samples were sorted into juvenile, male and female specimens, and body length and weight were measured, using a slide caliper and Mettler top-pan balance. The males and females were classified into maturation stages according to the Makarov and Denys (1981) system. The non krill specimens in the RMT8 catches were identified according to phylum, class, sub-class or order level, and weighed. Euphausiids were identified to the following species: Euphausia crystallorophias, Euphausia frigida, Euphausia triacantha, and Thysanoessa macrura. The RMT1 samples contained a large amount of phytoplankton, which made the measurement of wet weight of the whole sample difficult. Settling volume was measured instead, by standing the samples in a 2 litre measuring cylinder for 2 weeks. Krill larvae and other Euphausiid species larvae were extracted, staged and counted under a dissecting microscope. Larvae from Euphausia superba and Euphausia crystallorophias were raised from eggs in the laboratory and used as a reference. Consistency can be established through comparison of different net methods. Oceanography and phytoplankton data were also collected at each net sampling station, so there is consistency between the oceanography and biology data. The locations of the sampling stations were based on a grid, with stations approximately every 5 degrees longitude and 1 degree latitude, over an area from 58 degrees to 93 degrees East and 60 degrees South to the Antarctic continent.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2007-03-30 - updated by Dave Connell 2012-06-08 - record updated by Dave Connell to include the re-worked datasets produced by Angela McGaffin. 2019-07-11 - record updated by Dave Connell - basic updates. 2022-11-03 - record updated by Dave Connell after a minor data update.

Metadata

Metadata identifier
string/SIBEX_II_krill

Language
English
Character encoding
UTF8

Author

HOSIE, GRAHAM
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
fee555e5-e55e-4132-819a-4dc41cd10f91

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2022-11-03T10:18:19

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/SIBEX_II_krill

Point of truth for the metadata record

Date info (Creation)
1999-10-07T00:00:00
Date info (Last Update)
2022-11-02

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


Keywords


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Not available