I need a paper for my Oceanography class about the overfishing of tuna and its threat of extinction.

The following are some articles that I would be helpful in writing the paper:

http://eces.org/ec/extinction/marinefish.shtml

http://archive.greenpeace.org/pressreleases/oceans/1998feb19.html

http://www.juliahailes.com/planetfood/myoriginalcopies/tuna-original.pdf

http://www.ccsbt.org/docs/about_s.html

http://www.spc.int/coastfish/News/Fish_News/100/NIAR_100_3.htm

http://eces.org/ec/extinction/marinefish.shtml

http://www.ananova.com/news/story/sm_623335.html?menu=

http://www.bbc.co.uk/food/features/pf_jh_tuna.shtml

Please let me know if any further information is needed.