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Empty oceans empty nets - PowerPoint PPT Presentation

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http://www.pbs.org/emptyoceans/. Lecture 022b Empty Oceans Empty Nets (video questions). Define sustainable fisheries Early in the last century, about how big was the average size of a billfish that was caught? About how large are today's?

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pbs/emptyoceans/

http://www.pbs.org/emptyoceans/. Lecture 015 Empty Oceans Empty Nets (video questions). Define sustainable fisheries Early in the last century, about how big was the average size of a billfish that was caught? About how large are today's?

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Empty oceans empty nets - PowerPoint PPT Presentation

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