The fresh waters of California support a diverse native fish fauna, 130 taxa by our count (Leidy and Moyle 2021). At least 56 of these taxa are on trajectories towards extinction 7 are already extinct; 32 are listed as threatened or endangered by state and federal agencies. Not surprisingly, the declining species attract lots of attention because protecting them affects water use statewide. In this blog series, however, we discuss native fishes that are not considered to be in trouble. … The first species we discuss in this series is the Sacramento Sucker (Catostomus occidentalis).