3010 - Laserfiche WebLink

Home Browse Search

. . . RECOMMENDATIONS . Although the main objective of defining spawning requirements of Colorado squawfish was far from accomplished, it must be admitted that the succ~ssful tracking for six weeks of one radio tagged fish shows the methodology holds great promise. Also, the reason for failure was apparently faulty equipment, rather than problems associated either with the effect of the methodology on the fish or the physical characteristics of the Green River itself. Therefore, it is rec- ommended that another attempt be supported to locate Colorado squawfish spawning sites using radio telemetry. The following sequence should be followed. 1. A thorough preview of radio transmitters should be made utilizing both the manufacturers' claims for their equipment and contacts with researchers who have actually used the equipment in the field. The manufacturers with transmitters showing the greatest depend- ability and strength of signal would then be asked to supply equipment for a field evaluation of at least one month in dura- tion. It would be highly desirable to obtain transmitters com- patible with the present RF-40 and SR-40 receivers, as they appear to functi on well wi th good transmitters. The' equipment should then be thoroughly tested in the Green River for strength of signal at various depths and in water of various conductivi- ties. The tags could then be evaluated on their applicability . . . . . . 24 .