Friday, September 17, 2010

Stream Ecology, More DNA Extractions

Eric almost has the data from last Saturday at Estill Fork entered into Excel in correct form. Even the first take shows some interesting trends - rainbow and redline darters are overwhelmingly found in areas with measurable current, the logperch and greenside darters are entirely found in areas with deeper, stiller water. The tennessee snubnoses are pretty much found everywhere.

I submitted an order to Forestry Suppliers for two items: a 100 m tape on a retractable reel for defining transects across the Flint River, and an old-fashioned compass. They should be here by next weekend, in time for our first survey trip to the Flint River at Winchester Road. There's no rain in the forecast between now and then so the river should be very low.

And finally, we started extracting DNA from the New England fundulids that Tony sent me a month ago. Valerie hadn't used fresh fish for this before and was struck at the difference in cutting the tissue out, and the visibly larger pellet yield at the end. I'm still waiting to hear from IXG about what I gave them last week.

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