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Excerpt from Needs in the Management of Native Freshwater Mussels in the National Park System
Freshwater mussels (phylum: Mollusk, Class: Bivalvia) have suffered a greater de cline than any other wide-ranging taunal group in North America. Because of the decline of mussels throughout North America, many National Park System units are destined to be come important refuges for this significantly endangered group of animals. Yet, data on the abundance, distribution, and health of mussel populations in National Park System units is lacking. A preliminary survey of 27 units with mussel resources indicated that 37% of the responding units did not make baseline mussel inventories. Oi the parks with baseline data, 66% of the known mussel species were protected by federal or state laws. Five of the responding units provide a significant refuge for state and federally listed species: Big South Fork National River and Recreation Area, Buffalo National River, Mammoth Cave National Park, St. Croix National Scenic River, and the c&o Canal. These parks have exceptionally diverse assemblages of freshwater mussels that include state and federally listed species. The National Park Service has a critical role in the survival and recovery of freshwater mussel species.
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