In a document published on Feb. 1, 2016, the Idaho Department of Fish & Game said the following of Cat Creek Energy’s plan to keep a new reservoir on Little Camas Prairie filled and functional with Anderson Ranch Reservoir and South Fork of the Boise River water:
“The rapid dewatering of ARR (Anderson Ranch Reservoir) in late summer/early fall already stall kokanee escapement into the SFBR until the mud flat delta stabilizes. Kokanee are vulnerable to predation and delayed during this time. It is likely a daily 2+ foot fluctuation will exacerbate this problem and potentially strand kokanee.”
Reference: See page 4 from this downloadable pdf document – Idaho Fish and Game on the Cat Creek Energy Project - Feb. 1, 2016