Growth of White Crappie and Channel Catfish in Relanon to Varianons in Mean Annual Water Level of Lake Carl Blackwell, Oklahoma
Variations in annual increments of growth of white crappie. Pomoxis annularis Rafinesque, and channel catlish, Ictalurus punctatus (Rafinesque), are examined in relation to mean annual water level of Lake Carl Blackwell, 1962-1967, when lake level was declining. The occurrence of lee's phenomenon precluded a correlative comparison of white crappie growth with water level, but decrease in growth at age I and the increase at older ages is attributed to the decline in water level. The crappie body-scale relationship changed from curvilinear to linear as growth improved during the drawdown...
