UpStream Newsletter, Spring 2007
https://stroudcenter.org/wp-content/uploads/2016/10/P1040116web.jpg 266 200 Stroud Water Research Center Stroud Water Research Center https://stroudcenter.org/wp-content/uploads/2016/10/P1040116web.jpgLast summer, Stroud Center scientists and educators traveled to Peru and sampled 31 stream and river sites that ranged from pristine to severely polluted.