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Electrofishing in a headwater stream.
Hot Science Summer: A Stroud Center Photo Album
UpStream 2026, Issue #8
The hottest thing this summer? Freshwater science. Browse photos of research, education, restoration, and … basketball?
A small brook trout swims in a shallow stream.
Too Hot to Handle: How Rising Temperatures Impact Streams
UpStream 2026, Issue #8
Human activities are increasing stream temperatures and harming habitat quality for freshwater fish and species like mayflies.
A red building tucked in the middle of a vast tilled field.
Organic No-Till: Searching for the Holy Grail in Agriculture
UpStream 2026, Issue #8
Progress continues toward developing sustainable farming systems that can reduce chemical use, preserve and regenerate soils, and protect fresh water.
Stroud Center staff in Belize
Building Freshwater Stewardship in Costa Rica and Belize
UpStream 2026, Issue #7
Stroud Center helps communities establish trusted freshwater data, strengthen local monitoring, and protect vital freshwater resources.
Two scientists collect a streamwater sample in Belize.
Stewardship Supports Biodiversity in Belize, Survey Finds
UpStream 2026, Issue #7
Stroud Center’s comprehensive assessment reveals exceptional biodiversity and establishes a benchmark for freshwater conservation in Belize.
Diana Oviedo Vargas, Ph.D., collects biosolid samples to test for PFAS.
The Next Frontiers of Freshwater Science
UpStream 2026, Issue #7
From PFAS to road salt, science helps us discover the emerging pollutants lurking in our water and find solutions.
Closeup of a Radnor MS macroinvertebrate poster featuring a hellgrammite.
Students Transform Stream Studies Into Scientific Storytelling
UpStream 2026, Issue #7
Middle school students were challenged to create informational posters about the macroinvertebrates they discovered during a visit to the Stroud Center.
Euthyplocia mayfly from a Costa Rican stream.
The Most Important Animals May Be the Ones You Never Notice
UpStream 2026, Issue #6
Researchers are following the path of nitrogen in a tropical stream to uncover relationships that support the entire ecosystem.
Amy Bowers Cordalis.
The 2026 Stroud Award for Freshwater Excellence
UpStream 2026, Issue #6
The 2026 Stroud Award for Freshwater Excellence will be presented to Amy Bowers Cordalis, advocate for the Klamath River and Indigenous people.
Golfers with water donated by Open Water.
Golf Tournament Raises Funds for Freshwater Conservation
UpStream 2026, Issue #6, UpStream 2026, Issue #6
Golfers gathered to support freshwater science, education, and restoration at the Stroud Center’s annual golf fundraiser.
An aerial view of Choptank River Wetlands.
Whose Mud Is It? DNA Tracks Sediment Pollution in Chesapeake Bay
UpStream 2026, Issue #5
Stroud Center scientists used microbial DNA to trace sediment pollution in Maryland estuaries, helping managers target Chesapeake Bay restoration efforts more effectively.
Scott Ensign piloting a sailboat.
Fair Winds and Following Seas to Our Assistant Director
UpStream 2026, Issue #5
Amidst the awakening spring blossoms, buzzing pollinators, and lengthening days, the Stroud Center bid bon voyage to one of its own.

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