The fact that tributaries are not included in the regs for the Bow River from WHD to Carseland, means that Fish Creek follows the general stream regs for ES1 as outlined in point B below. That would be my interpretation as least and certainly consistent with other regs throughout the region.
STREAMS A. For Streams listed and fish species listed under “ES1 Lake and Stream Listings” starting on this page. You must follow the regulations stated with each listing. B. For other ES1 Streams, and tributaries, not included under (A) and for fish species not mentioned at a listed stream. June 16 to Aug. 31 – Trout limit 2; Cutthroat and Rainbow over 35 cm; Mountain Whitefish limit 5 over 30 cm; (where present, Walleye limit 3 over 50 cm; Pike limit 3 [no size limit]; Perch limit 15; Lake Whitefish limit 10; Burbot limit 10); Bait Ban. Sept. 1 to Oct. 31 – Trout and Mountain Whitefish limit 0; (where present, Walleye limit 3 over 50 cm; Pike limit 3 [no size limit]; Perch limit 15; Lake Whitefish limit 10; Burbot limit 10); Bait Ban. Nov. 1 to June 15 – CLOSED