Many accounts are incomplete although new information is being added continuously.
Errors do occur.
Users are cautioned to refer back to the original cited source to assess completeness and correctness before using the information. Web updates are intermittent, not continuous, therefore some dynamic information such as legal status may not be absolutely current. Flow regulation and introduction of nonnative fish have been identified as causes for decline. The woundfin occurred, apparently widely, in the larger streams and rivers of the lower Colorado River Basin. Range and abundance decreased dramatically after the 1800's.