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Examine the graph below.

World Fish Production. Digital image. World Resources Institute. World Resources Institute, n.d. Web. 28 Mar. 2016. http://www.wri.org/sites/default/files/uploads/fish_0.jpg.

The data in this graph can be explained by all of the following EXCEPT

A

most of the world's fisheries have been overfished.

B

aquaculture often releases high levels of waste materials into the surrounding environment which can pollute the area for wild fish populations.

C

overfishing continues to be a problem due to technologies like vessel monitoring systems, which use satellites to track fishing vessel movements and improve fishing regulations.

D

coastal aquacultural development has resulted in the loss of mangrove forests, which play an important role as wild fish nurseries.

E

aquacultured fish have been genetically modified to increase the speed at which they grow.

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