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Vampa is spawning, as noted in 1981. Holden (1977) suggested that spawning occurred at various locations in the Green River as evidenced by location of young-of-the-year. This indicates that migrations may not be very long, and/or that all fi sh may not move to spawn and that spawning occurs at several locations in the Green River sys~em. Daily, or short-term movements are poorly understood. A general pattern of movement at dawn or dusk has been noted by a number of dif- ferent researchers as catch rate increases at these times. Radio tele- metry studies by the USFWS have indicated most adult squawfish select rather sheltered areas near shore, which they often return to after moving about a section of river. These short-term movements are inten- sified during dawn and dusk. This suggests the adults may move about to feed, which makes sense for a piscavore in a turbid river. Mark-recapture type efforts have not provided very much data on movement, although many adult squawfish have been tagged. Holden and Crist (1981) recaptured one adult squawfish near Jensen, Utah, that had moved less than a km in over a month. Another adult was tagged near Jensen by the USFWS in August 1979, and was recaptured in the Yampa River in October 1980 (Wick et ale 1981). The USFWS recaptured two squawfish in the Yampa River in 1981 that had been tagged in the Yampa River 65-130 km upstream, as well as another fish that had originally been tagged near Ouray, in the Green River, and was recaptured in the upper Yampa River, 173 km above the mouth. The two Green River fish moved considerable distances upstream. Recent radio telemetry studies by the USFWS (Miller et ale 1981) have shown some adults move very little for rather long periods of time (1-2 months), others move more 13