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Before the Alevin go into the open they can survive off of their yolk sack for a month. Once they leave the. Gravel they become a fry. They need fresh clean water. The need trees for shade and gravel or another substance to hide so they won't get crushed. Their threats are gulls, dippers, and sculpins.
Article posted January 5, 2012 at 03:21 PM •
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