Includes locations of River Calder, for example Pendle Water, including estimates of fish numbers including minnows, stoneloach, eels, sticklebacks, bullheads.
Surveys of River Brun, including at Cant Crough Treatment Plant, showing lengths of numbers of fish caught.
Calder electrofishing field visit summary.
Letter J.E. Nott, of North West Water from Hyndburn and Blackburn Angling Association regarding coarse fish transfers to River Calder at Whalley, 1984.
Letter regarding fish introductions into River Calder and Pendle Water after 1986.