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Prionace glauca

4 record(s)

 

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    Southern blue fin tuna have been released since 1959 using conventional tags. This is where the tag database has its origins and therefore a large amount of the data held in the database consists of conventional (dart) tags releases of this species in Australian waters. In recent times the data base has evolved to include many more species of pelagic and benthic fish, sharks and turtles. The advent of electronic tags, some with satellite and/or acoustic tracking ability has added to the complexity of the database. Not only do these electronic tags require additional fields for setup options before release, but also require tables to support the complex range of data retrieved from these tags. The data has been grouped into a number of projects. The purposes behind each such project are many and range from the collection of data required for population analyses (the estimation of mortality rates and growth rates), to the investigation of large and fine scale movements, feeding patterns as revealed by the use of ‘smart tags’. Also for many tagging programs there have been changes in tagging ability between skilled and novice taggers. Individual projects thus reflect these criteria so that each Marlin entry contains as nearly as possible a homogenous data set in terms of: 1. Species 2. Tag type 3. Taggers used, in particular the use of CSIRO or non CSIRO personnel 4. Period of coverage to ensure that particular variants of tag type were used 5. Specific project aims 6. Specific geographical area 7. Lead agency ( to ensure that appropriate permission is obtained before access to the data base is permitted) Thus all the species specific data contained in the CSIRO data base has been grouped into discrete Marlin metadata units. Tag data for a particular species may also be covered by multiple Marlin units. The CSIRO database manager has a full listing of the species numbers contained in all Marlin units. Species where more than 200 individuals have been tagged in individual or multiple projects are listed in the descriptive keyword section. Keywords: Tag, Conventional, Archival, Acoustic, Pop-Up, Satellite, Tuna, Swordfish, Shark, Pelagic Fish, Demersal Fish, Turtles.

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    This record is an overview entry for biological data collected on Soela cruise SO 4/84. This cruise took place in waters off the west and northwest coasts of Tasmania, southern New South Wales and the east coast of Tasmania during 12 August - 13 September 1984, under the leadership of Brian Griffiths and G. Harris. Biological data collected on this cruise include demersal, pelagic, larval and juvenile fish samples including 8 blue sharks (Prionace glauca) from seven sections (SW Cape, Hibbs Pyramid, Sandy Cape, King Island, Bass Strait, Flinders Island and Maria Island) around Tasmania and from five sections (Montagu Island, Jervis Bay, Port Hacking, Batemans Bay and Eden) off the NSW coast. Zooplankton samples to assess biomass and species composition. Phytoplankton samples for productivity measurements. 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).

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    This record is an overview entry for biological data collected on Soela cruise SO 1/85. This cruise took place in Tasmanian waters and the eastern Bass Strait, under the leadership of T. Kenchington and Jock Young. Biological data collected on this cruise include demersal fish samples from trawling. Blue grenadier was the dominant species by weight. Morphometric and electrophoretic samples of blue grenadier. Juvenile blue grenadier samples. Pelagic samples from trawling included large catches of the lantern fish Lampanyctodes hectoris. Samples from longlining included small numbers of Brama brama, Rexea solandri, blue shark (Prionace glauca) and two Mako sharks (isurus oxyrhynchus). Ichthyoplankton and phytoplankton samples. Bottom fish samples. Seabird counts throughout the cruise, with several unusual species being observed. A large volume of cephalopod and other invertebrate samples (for National Museum of Victoria). Morphometric and electrophoretic samples of Helicolenus (for the University of Tasmania). Photographs of demersal and midwater fish species for taxonomic studies. Algal and zooplankton samples for biomass and species composition.(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).

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    This record is an overview entry for biological data collected on Soela cruise SO 6/84. This cruise took place in eastern Bass Strait and Tasmanian waters during 25 November - 19 December 1984, under the leadership of Ron Thresher and Jock Young. Biological data collected on this cruise include demersal fish samples from trawling. Deep sea trevalla (Hyperoglyphe antarctica) was the dominant species by weight and blue grenadier (Macruronus novaezelandiae) had the third highest catch rate. Pelagic samples from trawling included catches of the lantern fish Lampanyctodes hectoris and large numbers of juvenile blue grenadier. Ichthyoplankton samples obtained from around Tasmania. Helicolenus samples for electrophoresis. Zooplankton biomass and species for taxonomy. A 3.8 m thresher shark (Alopius vulpinus) was taken in one deep tow. Samples from longlining include high numbers of Brama brama and one blue shark (Prionace glauca) weighing approximately 70 kg. Photography of the scattering layer at a depth of 300 m. 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.(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).