ExStream Brazil

ExStream Brazil
Legal name of organisation
Universidade Federal do ABC (Federal University of ABC)
South America
Organisation address

Av. dos Estados, 5001, B. Santa Terezinha, Santo André, SP, Brazil. CEP 09210-580

Primary contact information (PI)

Adjunct Professor Ricardo Hideo Taniwaki

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Years of Mesocosm Experiments
Description of Facility

The ExStream System comprises 128 circular stream mesocosms offering strict control of experimental variables, excellent statistical power and a high degree of realism, such as permitting natural immigration and emigration of stream organisms (invertebrates, algae and microbes) and achieving the same ambient temperature, light conditions and water chemistry as the adjoining river/stream. The mesocosms are arranged in eight blocks of 16 units each, and each of these blocks is continuously supplied by stream water gravity-fed from one of eight header tanks via 16 individual supply pipes.

The Experimental Stream mesocosm network (ExStream) comprises replicate installations in New Zealand, China, Japan, Germany and Ireland and is coordinated by Asst. Prof. Jeremy J. Piggott at Trinity College Dublin (jeremy.piggott@tcd.ie).   

Controlled Parameters

Current velocity, flow, nutrients, fine sediment, pesticides, antibiotics, nitrification inhibitors, light levels, water temperature, grazing pressure

Research Topics

Multiple-stressor effects on stream ecosystems; also, natural drivers shaping stream communities

Facility location(s)
-23.060634, -48.630102
Primary interests

Multiple-stressor effects on stream ecosystems; also natural drivers shaping stream communities

Specialist areas

Multiple-stressor effects on stream ecosystems


Everything needed to run the experiments


Dorms for researchers and students (http://www.esalq.usp.br/svee/Itatinga/Itatinga_Planta.pdf)

Source of Information

Piggott, J.J., Salis, R.K., Lear, G., Townsend, C.R. & Matthaei, C.D. (2015) Climate warming and agricultural stressors interact to determine stream periphyton community composition. Global Change Biology, 21, 206-222.

>15 publications in scientific journals by C.D. Matthaei, J. J Piggott and coauthors (https://www.otago.ac.nz/zoology/staff/matthaei.html)

Blog post: https://jappliedecologyblog.wordpress.com/2015/07/03/exstream-study-assesses-stream-ecosystem-functioning-the-effects-of-climate-warming-multiple-agricultural-stressors/

Short video about ExStream System research: https://vimeo.com/243219546

Photos of experiments/installations