When Ron Kirk began pitching the Trinity River Project in the late 1990s, no one was thinking about the Texas heelsplitter or the Texas pigtoe, or the Mexican fawnsfoot, the smooth pimpleback, or the Texas fatmucket. There was no real reason to. Back then, the species were sufficiently abundant that they didn't merit state or federal protection.
That changed in 2010, when the Texas Parks and Wildlife Department listed those and 10 other freshwater mussels species as threatened. The mussels are an important part of aquatic ecosystems, the department explained, providing food to a variety of insects and animals. Habitat loss, excessive harvesting, and poor water quality all contributed to a decline in their numbers.
More to the point, the move helped forestall a listing by the U.S. Fish and Wildlife Service that would mean stricter rules and higher penalties, neither of which would be good for the Texas economy. Or so the argument goes. The federal agency's decision is still listed as being "under review."More »