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<br />The amount of water in a rehabilitation target area should be reduced as much <br />as possible by draining lakes, treating during drought years or treating when <br />impoundments are at a low level to increase degree of success and reduce the <br />cost of the project. <br /> <br />A good control effort followed by proper stocking can reap benefits for several <br />years. Elimination of the rough fish should be the target whenever possible. <br />Care must be taken to restock from sources that cannot contaminate the drain- <br />age. Conservation agencies are sometimes their own worst enemy by stocking <br />suckers with catchable rainbow, especially when the fish production facilities <br />are supplied with river water. <br /> <br />Most fishery field workers know the basic fundamentals and have access to equip- <br />ment necessary to accomplish a lake rehabilitation project with rotenone. Once <br />a candidate water is found effort must then be applied to planning and organi- <br />zation in advance of the project. Thoroughness while doing the project and <br />proper follow through to verify the extent of the rough fish kill cannot be <br />overemphasized. Detoxification of treated water or the stream below the target <br />area is also frequently necessary. <br /> <br />Lake rehabilitation tricks and techniques should be documented and worked into <br />a manual that can be used as a reference by fisheries workers. A considerable <br />amount of literature and field expertise is available and the nuts and bolts <br /> <br />~ <br />