Organic or Inorganic?

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This has been reposted from our lab tumblelog

uwiscseagrant:

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By Aaron R. Conklin

Among fish farmers, it’s known as “the bottleneck,” the six-week period between the point when a fish fry is released into a pond and the point when it’s grown large enough to become feed-trained. For many fish farmers, it’s the make-or-break phase of the operation—will enough fish survive for me to turn a profit?  And it’s also what leads to conversations like the one Chris Hartleb, professor of fisheries biology at the University of Wisconsin-Stevens Point, had with a yellow perch farmer a few years ago.

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via the Lab Tumblr: http://genefish.tumblr.com/post/39143394797