The exchange rate of marked juvenile spots Leiostomus xanthurus between two adjacent tidal creeks was examined over 40 d in the Guinea Marshes of the York River estuary, Virginia. Spots were batch-sprayed with fluorescent pigments on 4–6 June 1984 and released into Little Monday Creek and a nearby smaller unnamed creek. Between 8 June and 17 July, 214 marked spots were recaptured. Of the 134 fish recaptured in the unnamed creek, 6.7% were from the adjacent Little Monday Creek, while 2.5% of the recaptures in Little Monday Creek were from the smaller unnamed creek. These results indicate that the exchange of juvenile spots between tidal creeks is relatively insignificant.