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An important routine in assessment of fish stocks is deriving the numbers of fish removed from the population through fishing by converting the nominal catches from weight to numbers at age. The relationship between length and weight of a given species is a useful parameter in performing this routine. Lengthweight regressions for witch flounder on the Scotian Shelf (NAFO Div. 4VWX) were reported by Powles (1967) and Kohler et al. (1970). Previous work on the length-weight relationship of witch flounder in the Newfoundland area was reported by Bowering (1976), but that equation was based on a combination of data collected from all areas around Newfoundland over several years and was calculated from mean weight-atlength data. This paper presents length-weight relationships for both round and gutted weights of witch flounder sampled in the autumn of 1982 from the eastern Newfoundland area (Div. 2J, 3K and 3L), which is the most important in the Northwest Atlantic in terms of catch. Recent stock discrimination studies have demonstrated that there are breeding populations in each of the divisions (Fairbairn, 1981; Bowering and Misra, 1982), and hence the present analysis considers data for each division separately.

NOTE: Regressions of Weight on Length for Witch Flounder,Glyptocephalus cynoglossus, of the Eastern Newfoundland Area