Fig. 6. (A) Caudal saccule from a control goldfish double-labeled with phalloidin and DAPI, showing hair cell nuclei (blue) and associated hair bundles (green). (B) Caudal saccule from a goldfish exposed to 48 h of white noise and then allowed to recover for 1 day. The arrow indicates a remaining hair bundle, and the arrowhead indicates a hair cell nucleus without a hair bundle. Scale bars, 10 µm. (C-E) Numbers of hair cell bundles and nuclei counted from 2500 µm² regions located at (C) 75% (caudal), (D) 50% (central) and (E) 25% (mid-rostral) along the rostrocaudal axis of the saccular macula following noise exposure. Values are means ± s.e.m.; N=3 (days 0-1); N=5 (controls).