Skip to main content
ARS Home » Office of Communications » Images » Photos » Sep04 » k11418-1

Download a high-resolution (300dpi) digital image here

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)



Please visit our Image Gallery