Thursday, April 19, 2012

Causes Document



          Overfishing of bluefin tuna, also known as Thunnus thynnus, has been very detrimental to the overall population. As the larger of the tuna are being overfished, these fishermen begin fishing the smaller tuna before they had time to reproduce. Because of derby days where fisherman would have 24 or 48 hours to catch as much fish as they could they would throw unnecessary amounts of equipments into the water, often loosing much in bad weather days.  This equipment would then "ghost fish" and kill and catch fish without a fisherman on the other end. Therefore, the overfishing of the bluefin tuna has not only caused a decline in population but also the younger tuna are not able to reproduce, which affects many other animals in their ecosystem, as well as us humans. The disruption of one animal in a specific ecosystem can severely affect many other living organisms in that same ecosystem, as well as other ecosystems. 

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