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4. RADIO: Movement data for radiotagged fish, including observa- <br />tion time, distances for movements, type of movement, depth, <br />velocity and substrate of preferred habitat, water flow and <br />temperature. <br />MANAGE accepts alphanumeric codes. Fish species and other observa- <br />tions were coded on the data sheets as letters rather than numerals. As <br />an example, the substrate 'sand' was coded as 'SA'. This facilitated <br />field recording. Numeric information was also entered directly. <br />lb.