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Click here to go back Details of this species in Oklahoma Status: Alien Invasiveness: Not specified Occurrence: Established Source: Benson & Raikow, 2008; Pigg et al, 1999 Arrival Date: Introduction: Species Notes for this Location: Driessena polymorpha was discovered in Arkansas River in Oklahoma in January 1994. Previous records were from the locks and dam of Robert S. Kerr Lake and W.O. Mayo Lake where they occurred at low density, 40 mussels/m². The invasion of Oklahoma waters was attributed to transport by barges from the Mississippi into the Arkansas River. In June 1996, over 300 specimens collected while examining the walls of the locks, boat ramp, and rip-rap at the Robert S. Kerr Lock and Dam, Sequoyah County. Another 410 specimens were collected from a 1-m² area, in July 1996. By the fall of 1996, the density had increased to 850 mussels/m² at the same site, the largest known concentration of the mussels in Oklahoma water. In June 1996, 150 specimens were collected at the boat ramp at Leflore Landing on W.O. Mayo Lake (Pigget al, 1999). Management Notes for this Location: Location Notes: Last Modified: 10/12/2009 4:19:12 p.m.