Richard A. Fridell

• Baseline virgin spinedace population demographics in an area proposed for floodplain restoration and a reference reach, north fork of the Virgin River, Zion National Park, 2003
• Baseline virgin spinedace population demographics in an area proposed for floodplain restoration and a reference reach, north fork of the Virgin River, Zion National Park, Fall 2002
• Boreal toad (Bufo boreas boreas) distribution surveys in southwestern Utah, 1994-1998
• Columbia spotted frog (Rana luteiventris) population monitoring summary
• Columbia spotted frog (Rana luteiventris) population monitoring summary
• Columbia spotted frog (Rana luteiventris) population monitoring summary
• Least chub (Iotichthys phlegethontis) monitoring summary Snake Valley, 1999
• Red shiner (Cyprinella lutrensis) distribution, monitoring, and removal efforts in the Virgin River above the Washington Fields Diversion, 2002
• Spotted frog distribution survey in Tule Valley, Utah, spring 1997
• Virgin River treatment report, October 2001
• Virgin spinedace (Lepidomeda mollispinis mollispinis)
• Washington County sensitive species