Southern bluefin tuna  (Thunnus maccoyii)

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Anal fin: in fish, an unpaired fin on the under surface of a fish, behind the anus.
Dorsal fin: in fish, the unpaired fin found on the back of the body.
Purse seine netting: fishing method whereby a school of fish (such as tuna) is encircled with a net, which is then closed at the bottom, or 'pursed', trapping the catch.

References

  1. IUCN Red List (October, 2002)
    www.redlist.org
  2. Burnie, D. [ed.] (2001) Animal. Dorling Kindersley, London.
  3. Fisheries Global Information System (August, 2002)
    http://www.fao.org/fi/default_all.asp
  4. Commission for the Conservation of Southern Bluefin Tuna (August, 2002)
    http://www.ccsbt.org/docs/about_s.html
  5. Greenpeace, Australia Pacific (August, 2002)
    http://www.greenpeace.org.au/oceans/bluefin_tuna/index.html
  6. Fishbase (August, 2002)
    http://www.fishbase.org