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Creature Feature: The rare dragonfly that bears the St. Croix River’s name
St. Croix Snaketails have only been known to exist since 1989, when researchers stumbled across the species on the upper river.
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Creature Feature: St. Croix River ‘blobs’ are colonies of unique animals
Bryozoans can form gelatinous balls containing thousands of tiny organisms.
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St. Croix mussel research highlighted in National Park Service newsletter
Wild and Scenic Rivers program publishes St. Croix 360 stories about scientific studies of unique aquatic creatures.
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Stalking bullsnakes on St. Croix Valley sand plains
In a prairie on the river bluffs, researchers are slowly and steadily learning about the region’s largest snakes.
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Study: Invasive carp hurt Mississippi River sport fishing
Scientists show how game fish populations have declined in area where carp are established — a worrisome omen for the St. Croix.
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Flexing Mussels, Part 2: Searching for St. Croix River spectaclecase
Elusive and endangered species finds refuge in rocky reaches, where biologists seek answers to guide protection.
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Flexing Mussels, Part 1: Citizens scientists study special St. Croix creatures
U of MN researcher is joined by volunteer crew wading into mussel research.
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St. Croix Creature Feature: River is refuge for endangered mussel
Spectaclecase species is subject of intensive research and protection.
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Video: See the St. Croix join the muddy Mississippi and learn why it is that way
Unique aerial footage shows a blue river joining brown water, but there’s more to it than meets the eye.
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Survey finds St. Croix River has most mussel species of any Wisconsin waters
Species once commercially important now recognized for ecosystem importance.
