This study examines fishing license records for the state of Colorado.

This study examines fishing license records for the state of Kentucky.

This study examines fishing license records for the state of Maryland.

This study examines fishing license records for the state of Michigan.

This study examines fishing license records for the state of Montana.

This study examines fishing license records for the state of Nebraska.

This study examines several years of fishing license records for the state of Nevada