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United States Department of Agriculture

Agricultural Research Service

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Image Number K11418-1

Giant salvinia grows so thick it forms mats that block out sunlight and use up oxygen in lakes and ponds. Here, in a greenhouse, Student Conservation Association intern Melissa Martin and entomologist Philip Tipping record giant salvinia biomass.

Photo by Peggy Greb.

640 pixels wide: (k11418-1.jpg)

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Last Modified: 8/12/2016
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