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Research Voyage: SO 5/80
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This dataset contains the processed Hydrology (HYD) data collected on Soela voyage SO 5/80. The voyage took place in the North West Shelf, the West Australian north coast and the Timor Sea during 21 June - 26 July 1980. 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). Soela on-voyage hydrology data are typically obtained from water samples collected in Niskin bottles at various depths. Parameters measured normally comprise temperature, salinity, dissolved oxygen, phosphate, nitrate, silicate, and nitrite.
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The dataset comprises catch records of syngnathids (seahorses, pipefish etc.) from demersal fish trawls, demersal prawn trawls and epibenthic sled samples from the North Marine Region. It is a compilation of data from 9 research voyages (SO 05/80, SO 07/80, SO 02/81, SS 03/90, SS 05/91, SS 01/93, SS 02/97, SS 08/97 and SS 03/98) and the CSIRO scientific observer program, 1996-98. The dataset was created for the Department of the Environment and Water Resources (DEW) for use in profiling of the North Marine Region during the development of a marine bioregional plan for the region.
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The dataset comprises catch records of demersal fish and invertebrates from demersal fish trawls, demersal prawn trawls and epibenthic sled samples from the Northern Planning Region. It is a compilation of data from 9 research voyages (SO 05/80, SO 07/80, SO 02/81, SS 03/90, SS 05/91, SS 01/93, SS 02/97, SS 08/97and SS 03/98). The catch of each species in a sample is recorded as raw weight and count, gross weight and count (raw values divided by the subsampling fraction) and per area weight and count. Species are recorded as CAAB codes. Sample attributes include the voyage, location, time, sampling gear and sampled area. The dataset was created for the Department of the Environment and Water Resources (DEW) for use in profiling of the North Marine Region during the development of a marine bioregional plan for the region. Data from all voyages are in a single set of tables and in the same structure and measurement units. The aim of the dataset is to provide convenient access to the data from the source datasets, which were stored in various data structures in various locations. Although the data are presented in uniform measurement units of counts and weights per unit area, data from different samples cannot be assumed to be comparable. In particular, the catchability of a species varies among types of sampling gears. Even samples from a given gear type on a given voyage may not all be comparable to one another. For example, gear may be altered during a voyage (e.g. multiple codend mesh sizes may be tried) and fish trawls are occasionally aimed at fish visible on the echo sounder. The data should therefore be analysed no more than semi-quantitatively. Assumptions on the comparability of samples -- even from a single voyage and gear type -- should be based on reference to the voyage reports.
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This record is an overview entry for biological data collected on Soela cruise SO 5/80. This cruise took place in the North West Shelf, the West Australian north coast and the Timor Sea during 21 June - 26 July 1980, under the leadership of W. Okera. Biological data collected on this cruise include EK 50 and Simrad 1100 acoustic data and observation data from the Atlas Fischfinder. Samples and biological data of 23 species of Carangidae, 4 species of Scombridae, at least 8 species of Leiognathidae, 6 species of clupeoids, 3 species of Sphyraenidae, 1 species of Trichiuridae, 1 species of Parastromateidae and 6-7 species of sharks. Plankton samples for abundance estimates. Bottom sediment samples from 60 dredge tows for particle size analysis, for determination of organic content and small sediment samples stained with Rose Bengol for foraminiferan studies. Photographs of 356 specimens representing about 290 species of both demersal and pelagic fish these were also retained for further examination.(derived from the cruise report). - 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).