Screens, traps and detectors have been installed elsewhere in the Harney Basin
's complex network of lakes, canals and marshes to block the movement of carp.
The numerous streams flowing from Steens Mountain of southeastern Oregon into the surrounding valleys provide habitat for threatened Lahontan cutthroat trout (Oncorhynchus clarki henshawi); other species petitioned for listing, such as the Catlow and Harney Basin
redband trout (Oncorhynchus mykiss sspp.); and numerous sensitive species, such as the Catlow tui chub (Gila bicolor ssp.), mountain whitefish (Prosopium williamsoni), northern pikeminnow (Ptychocheilus oregonensis), and Malheur mottled sculpin (Cottus bairdii ssp.).