Soela Voyage SO 1/89 Biological Data Overview

This record is an overview entry for biological data collected on Soela cruise SO 1/89. This cruise took place in waters off the east coast of Tasmania and south eastern Australian waters between Kangaroo Island, South Australia and Portland, Victoria during 19 January - 9 February 1989, under the leadership of Clive Stanley. Biological data collected on this cruise include a total of 1074 kg of orange roughy from 69 random demersal tows including camera photography of 33 of the 69 tows. Average catch rates were the greatest in the 1000 and 1100 m depth strata. Small fish were present in the tows, ranging down to 6 cm. Biological studies were made on 895 fish, 1879 were length frequencied by sex. Acoustic data were obtained but no marks suggestive of orange roughy aggregations were noted. 100 orange roughy samples were obtained for morphometric analyses of the South Australian population. Sediment samples were collected from about 50% of the occupied random stations. Camera photography of stage 1 and 2 male and stage 1 to 3 female gonads. 34 species of sea birds were identified, including the first Australian sighting of the Great Shearwater (Puffinus gravis), and the first South Australian sighting of the Westland Petrel (Procellaria westlandica). Six CTD casts were carried out. Please note: This metadata record is a preliminary entry derived from information in the cruise plan and/or cruise report. Individual data types - which may span several cruises - will be indexed separately within this metadata system in due course. - Biological Field Data Sheets recorded during this voyage have been scanned to PDF, and are available (to CSIRO Staff) on-line. See the details link under "Stored Media List" (below).