Virginian Barrier Islands and Coastal Marshes

Eurasian water-milfoil found at Club Rd in Corolla

September 21, 2026

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(Myriophyllum spicatum), an invasive aquatic plant, was observed on 2026-08-25 at Club Rd in Corolla.¹ This introduced species grows rapidly in freshwater systems, shading out native aquatic plants and reducing biodiversity in colonized areas.¹

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More about Eurasian water-milfoil

Two aquatic invasives have taken hold at low water—Eurasian water-milfoil…

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Two aquatic invasives have taken hold at low water— (Myriophyllum spicatum) and (Salvinia minima)—where the stream drops to 352 cubic feet per second. These dense mats collapse dissolved oxygen overnight, compounding heat stress on fish during the summer's thinnest flows. These streams were historically too tannic and fast for aquatic invasives to establish. The slow creep toward lower baseflows has finally opened the door. What once seemed like a refuge is now becoming hospitable to the species pushing in from neighboring waters and managed lands. The margin between resistance and vulnerability has narrowed.