Why the Northern Redbelly dace? Ocean First Institute has partnered with Colorado Parks and Wildlife, Boulder County Parks and Open Space, The Innovation Center of St. Vrain Valley School District, and Lyons High School to create a program to reintroduce a state threatened fish species, the northern redbelly dace (Phoxinus eos), to the St. Vrain River. This species is endangered in Colorado due to low population numbers and is listed as a Tier 1 Species of Greatest Conservation Need. Management recommendations for this species include the restoration of streams to natural function and to enhance connections for migration. Conservation priorities include identifying suitable habitat and restocking appropriate streams with redbelly dace.