Stefan Lovgren

About

Stefan Lovgren is a journalist with 30 years of experience reporting from around the world. He is a researcher at the University of Nevada, Reno, focusing on environmental issues, particularly freshwater ecosystems. His work explores the intersection of science, conservation, and global water challenges. He is the co-author of Chasing Giants: In Search of the World's Largest Freshwater Fish (2023).

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Dove Lake beneath Cradle Mountain in Tasmania’s highlands, where cool, ocean-influenced conditions have helped slow the pace of climate change across the landscape. Image by Stefan Lovgren.

Long dubbed a ‘climate refuge,’ warming Tasmanian forests need our help

Stefan Lovgren 12 May 2026

The Golden dorado (Salminus brasiliensis), a powerful migratory freshwater fish native to the Pantanal and Paraná River Basin, shown here being held by researcher Zeb Hogan. Highly prized by recreational anglers and important to commercial fisheries, the species has declined in parts of its range due to dam construction.

Migratory freshwater fish are in trouble: Will we act in time to save them?

Stefan Lovgren 1 May 2026

The King River enters Macquarie Harbour, where decades of mining have contributed to contaminated sediment buildup at the river’s delta. Image by Stefan Lovgren.

In Tasmania, the mines have closed but the rivers remember

Stefan Lovgren 16 Apr 2026

Researcher Lisiane Hahn and colleagues have tagged and released piraíba fitted with tracking devices, generating new data that reveal previously undocumented migrations of this South American species. Image courtesy of Lisiane Hahn.

325 Long-neglected migratory freshwater fish species need protection now: Report

Stefan Lovgren 25 Mar 2026

Cambodian market survey a snapshot of a resilient — but stressed — Mekong

Stefan Lovgren 10 Mar 2026

Community members gather as a tagged Mekong giant catfish (Pangasianodon gigas) is prepared for release in the Cambodian stretch of the Mekong River.

Earth’s freshwater fish face harsh new climate challenges, researchers warn

Stefan Lovgren 17 Dec 2025

Rare earth rush in Myanmar blamed for toxic river spillover into Thailand

Stefan Lovgren 9 Jun 2025

News and Inspiration from Nature's Frontline.

Yo Yaj at Songkhla Lake, Thailand

Wild horses gallop on the Fort McDermitt Paiute-Shoshone Indian Reservation near McDermitt, Nevada. Image by AP Photo / Rick Bowmer.

Climate Wayfinding with a design background. Image by Amerpsand. Courtesy of Katharine Wilkinson.

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