Economic Importance for Humans: Negative
Tuna fishing practices often result in harm to other species, including dolphins and sea turtles. There are potential health risks to humans that come from consuming large amounts of tuna due to mercury contamination in their flesh. Mercury contamination can result in damage to the nervous system, digestive system, respiratory system and kidneys. It can also have damaging effects on the male reproductive system and on developing fetuses. Mercury contamination is usually the result of bioaccumulation of toxins in water as a result of human activities.
- Hightower, J., R. Rider. 2005. "NRDC: Mercury Contamination in Fish" (On-line). NDRC. Accessed December 01, 2005 at http://www.nrdc.org/health/effects/mercury/effects.asp.
- Jeantheau, M. 2004. "Mercury in Fish" (On-line). Grinning Planet. Accessed December 01, 2005 at http://www.grinningplanet.com/2004/08-10/mercury-in-fish-article.htm.
- Shwartz, M., K. Peterson. 2005. "Electronic tags reveal transatlantic migrations and breeding grounds of Atlantic bluefin tuna" (On-line). Accessed December 02, 2005 at http://www.stanford.edu/dept/news/pr/01/tunastudy822.html.