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Chitinase activities in the upper 7 centimeters of LB and LZ sediment relative to sediment dry weight in fall 2009 at 4°C. MUF, fluorescent methylumbelliferone released after the hydrolysis of the chitin substrate analog methylumbelliferyl-N,N′-diacetylchitobioside. The error bars represent standard deviations of triplicate measurements of one sample.
