AbstractA 34‐day study was conducted to estimate the effect of stocking density on growth, biomass, and yield of harvestable animals in red swamp crawfish,Procambarus clarkii(Girard). Juvenile crawfish were stocked at l, 2, 4, 8, and 16 crawfish per m2into plastic‐lined metal pools planted with rice (Oryza sativa) with three replicate pools at each density. Crawfish averaged 35 ± 1.5 mm (SE) total length at the time of stocking.Growth in total length and weight was significantly affected by density (P75 mm total length) ranged from 100% at 1 per m2to 0.7% at 16 per m2. Gross revenues per ha were projected for crawfish yields at each stocking density with and without a graded pro