Research Document - 2010/074
Information in support of a Recovery Potential Assessment of Wavy-rayed Lampmussel (Lampsilis fasciola) in Canada
By L.D. Bouvier and T.J. Morris
Abstract
In October 1999, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) designated the Wavy-rayed Lampmussel (Lampsilis fasciola) as Endangered. Wavy-rayed Lampmussel was subsequently listed on Schedule 1 of the Species at Risk Act (SARA) when the Act was proclaimed in June 2003. In April 2010, the status was reassessed as Special Concern. The reason for this designation was that surveys since the first assessment identified a large, previously unknown reproducing population in the Maitland River and that there is evidence that some of the populations are reproducing. The Recovery Potential Assessment (RPA) provides information and scientific advice needed to fulfill various requirements of SARA including permitting activities that would otherwise violate SARA. This Research Document describes the current state of knowledge of the biology, ecology, distribution, population trends, habitat requirements, and threats of Wavy-rayed Lampmussel. Mitigation measures and alternative activities related to the identified threats, that can be used to protect the species, are also presented. The information contained in the RPA and this document may be used in assessing SARA Section 73 permits.
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