Mississippi Paddlefish (Polyodon spathula)-
Conservation status: Vulnerable
Threats: It is currently believed that paddlefish populations are healthy and can sustain fishing for commercial purposes though several subpopulations have been overexploited. Such overfishing as well as a reduction in habitat and water quality are the greatest threats to this species. A population decrease of 30% or more is possible within the next decade.
(Source: Encyclopedia of Life)
(Image credit: U.S. Fish and Wildlife Service)