Soela Voyage SO 4/87 Biological Data Overview

This record is an overview entry for biological data collected on Soela cruise SO 4/87. This cruise took place in waters off the west and east coasts of Tasmania during 3-16 June 1987, under the leadership of F. R. Harden Jones. Biological data collected on this cruise include estimates of orange roughy biomass based on echo surveys and demersal trawl hauls from the two roughy fishing grounds (Sandy Cape and St Patrick's Head). Orange roughy length frequency, sex ratios, gonad maturation stage and stomach contents (a total of 353 stomachs were analysed, 201 and 152 from the east and west coasts respectively). Bathymetric data within the area bounded by latitudes 41 degrees 45'S and 41 degrees 12' S, and the 700 m and 1200 m contours on the east coast. Bathymetric data on the Sandy Cape ground between latitudes 41 degrees 15'S and 41 degrees 11'S, and longitudes 143 degrees 59.80'E and 144 degrees 01.50'E. Data from echo surveys and environmental data from the sea surface thermosalinograph and XBTs. Target strength measurements of orange roughy using the EK 400 sounder. Information on experimental fishing trials with midwater and demersal trawls. Plankton samples for Dr Thresher and lantern fish were collected for the EZ Company. 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.