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~~"" .~ _~'M".~ . . "" "" - - ... . 6 A atl-eam shooker was generally quite wcoessM in stunning 1'1m during low water periods. This device consisted of a combination AC. DC, Homel1te generator with an output of 230 volts and 6.3 amperes. The generator was connected to one positive and two negative electrodes by 200 feet of cord. Alternating current was found more eftective in stunning fish than direct c:urrent, probably beoause ot the turbulent r, ( ! i ~l water in the areas sampled. During late spring and early S\.UlIfl1Or, when water volUlll8 and turbidities were very bigh, throw-lines were the only etrective devioes found tor collecting fish of larger than fingerling size. Cotton oords were cut to a length varying trom 10 to 25 feet and served as the main lines. From these, l2-inch drop lines with hooks were tied at 5-foot intervals. A weight was attached to one end, and the other was anohored near the shoreline. Throw-lines oontained from two to five hooks baited with whole kernel corn or beef liver. They were usually ohecked at about 7 am, 12 noon, and 6 pm. This Ill8thod of collection was found seleotive tor larger fish; usually carp Cym-inu6 carpio Linnaeus, ohannel oatfish Ictalurus punotatus Raf'inesque, and bonytail ohubs g!l!, robusta Baird and Girard. Four types of seines were used during field operations. Two-man minnow seines \oTero successful in capturing small fish in side channels and shallow water areas. These seines were 3 feet in depth, trom 15 to 20 feet in length, and had a t-inch mesh. A small one-man push seine was made by rolling the netting around a bra1l until the two brails were about three feet apart. This method proved effeotive tor capturing Ddnnows and other small fish in small side channels during tho summar investigations. Tied bag seines and tied straight