This data set contains Simrad EK500 single beam echosounder data at 38 and 120 kHz and Simrad EA500 single beam echosounder data at 12 kHz from the Southern Surveyor. The EK500 data is primarily for water column characterisation (fish stocks, microplankton distribution) and on occasions for seabed classification (particularly prior to the EM300 swath mapper being installed), while the EA500 data is primarily for bathymetric readings.
This dataset contains the processed Conductivity-Temperature-Depth (CTD) data collected on Southern Surveyor voyage SS 02/92. The voyage took place in oceanic and shelf waters off south eastern Tasmania during 26 May - 18 June 1992. This dataset has been processed and is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the data processing report (as available).
This dataset contains the processed Hydrology (HYD) data collected on Southern Surveyor voyage SS 02/92. The voyage took place in oceanic and shelf waters off south eastern Tasmania during 26 May - 18 June 1992. This dataset has been processed and is archived within the CSIRO Marine and Atmospheric Research Data Centre in Hobart. Additional information regarding this dataset is contained in the cruise report for this voyage and/or the data processing report (as available). Southern Surveyor on-voyage hydrology data are typically obtained from water samples collected in Niskin bottles at various depths during each CTD cast. Parameters measured normally comprise temperature, salinity, dissolved oxygen, phosphate, nitrate, silicate, and nitrite.
This record is an overview entry for biological data collected on Southern Surveyor cruise SS 02/92. This cruise took place in oceanic and shelf waters off south eastern Tasmania during 26 May - 18 June 1992, under the leadership of Jock Young. Biological data collected on this cruise include midwater and demersal fish from the jarosite dumpsite, and from control sites to the north and east, for heavy metal analysis. Orange roughy from along the 1000 m contour inshore of the dumpsite for heavy metal analysis. Samples collected from trawls for species composition and day/night vertical distribution of the main zooplankton and midwater fishes associated with the dumpsite. Midwater fish and plankton samples from the tuna longline fishing grounds to determine the species composition and to study the biological production in these waters. 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.
This study examined the larval biology and ecology of the southern rock lobster (Jasus edwardsii) based on approximately 3000 archived plankton and mid-water trawl samples held, principally, by CSIRO, Tasmanian Aquaculture and Fisheries Institute, and the Marine and Freshwater Research Institute, Victoria. Additional samples were provided by the National Institute of Water and Atmosphere, New Zealand; some samples were opportunistically collected during the project to fill in areas where there was a lack of archived samples. The combined sample set covered the major geographic range of the fishery in Australia (132E/32S - 155E/46S). Details of larval growth, duration and distribution were combined with concurrently collected hydrographic data and satellite based observations to examine possible larval transport mechanisms, connectivity between management zones and physical factors that may influence the supply of larvae on a regional basis. The dataset is primarily in Excel format with a summary of the results presented in a final report to FRDC (project number 96/107).