female marble trout begin building redds



Action Plan Marble Trout: Maintaining the Legacy of One of Europe’s Most Remarkable Fish

The Soča River in northwestern Slovenia belongs, rightfully, in discussions about the most beautiful rivers in Europe and is renowned within the flyfishing community for its most mysterious resident—the marble trout. A subspecies of brown trout, marble trout evolved within the confines of the Soča watershed and other streams in the Adriatic Sea basin, and are known for their remarkable vermiculated color patterns, predatory behavior and an ability to grow very large, for a trout.

Yet the marble trout of the Soča might not inhabit the river today if not for a dedicated group of scientists and local anglers that, since the late 1990s, has spent countless hours every winter fighting what could have been the slow death of this unique species…

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