All scientific data collected by the Australian Antarctic program (AAp) are eventually described in the Catalogue of Australian Antarctic and Subantarctic Metadata (CAASM). CAASM can be used to search through AAp data descriptions, and it also provides links to access publicly available datasets, which can either be immediately downloaded or obtained from the Australian Antarctic Data Centre (AADC).

View the full metadata record
Citation
Williams, D. (1999) Aurora Australis Voyage 6 (FISHOG) 1991-92 Heard Island Fish Data, Ver. 1, Australian Antarctic Data Centre - https://data.aad.gov.au/metadata/records/AADC-00080, Accessed: 2022-11-26
Title
Aurora Australis Voyage 6 (FISHOG) 1991-92 Heard Island Fish Data
Data Centre
Australian Antarctic Data Centre, Australia
Created Date
1999-10-07
Revision Date
2017-03-21
Parent record
Historical_Fish_data

Description

This dataset contains the data from Voyage 6 (FISHOG) 1991-92 of the Aurora Australis. The observations were taken from the Heard Island area in January and February 1992. The data contains temperature and salinity data from a CTD survey and the results from demersal fish trawl surveys. The major species were Dissostichjus eleginoides, Channichthys rhinoceratus, Channichthys gunnari, Lepidonotothen squamifrons, Gymnoscopelus nicholsi and Paradiplospinus gracilis. This is a subset of the data for the whole voyage. The objectives of the fish program were: to assess the distribution and abundance of demersal fish on the shelf in the AFZ around Heard Island; to investigate the biology of the more important species.

A Microsoft Access database containing data from this cruise, plus several others is available for download from the provided URL. The Entry ID's of the other metadata records also related to this data are:

AADC-00038
AADC-00068
AADC-00073
AADC-00075
AADC-00080
AADC-00082
c88_data

The fields in this dataset are:

Cruises
Date
Location
Latitude
Longitude
Species
Gear
Length
Weight
Sex
Gonad
Eye
Otolith
Stomach
Lifestage
Family

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Quality

These data follow on from that of the 1990 winter cruise (HIMS). Sampling was carried out using a 35m headline length bottom trawl. Stations were chosen using a random stratified survey design, stratified according to depth: 0-100m, 100-200m, 200-300m, 300-500m. Sixty-nine trawls were completed successfully.

All fish were identified, weighed and measured on board, except specimens too small to weigh accurately, which were frozen for later weighing in the Antarctic Division laboratories. For all common species, guts, gonads and otoliths were removed from 25 specimens of each species per haul (if numbers permitted). For large catches of individual species, a random subsample of 50 was individually weighed, measured and guts gonads and otoliths removed, a further 50 were weighed and measured, and a further 100 were measured. The total number and weight of each species was also recorded.

At some sites, samples of liver, heart and muscle of Dissostichus eleginoides were taken and stored in liquid nitrogen for the mitochondrial DNA (mtDNA) study.

CTD data were collected at most stations, so fish data and oceanography data are consistent. Position, date and time of each station was recorded, and tabulated results, a cruise track, and a station map is included in the reference given above.

Access

Access to the data is via the parent metadata record.

Temporal Coverages

Spatial Coverages

Science Keywords

Additional Keywords

  • Cruises
  • Date
  • Location
  • Latitude
  • Longitude
  • Species
  • Gear
  • Length
  • Weight
  • Sex
  • Gonad
  • Eye
  • Otolith
  • Stomach
  • Lifestage
  • Family

Locations

  • OCEAN > SOUTHERN OCEAN
  • GEOGRAPHIC REGION > POLAR
  • OCEAN > SOUTHERN OCEAN

Platforms

  • SHIPS
  • R/V Aurora Australis

Instruments

  • TRAWL

Researchers

  • williams, dick (INVESTIGATOR,TECHNICAL CONTACT,DIF AUTHOR)

Use 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=AADC-00080 when using these data.

Creative Commons License