Laserfiche WebLink
<br />. <br /> <br />. <br /> <br />method for collecting squawfish (Table 2). Only one squawfish was taken <br /> <br />during the September systematic sampling effort compared with six <br /> <br />captured by the same effort in June. Trammel netting captured only one <br /> <br />squawfish; however, nets were difficult to set and maintain in fishing <br /> <br />condition because of water flows and scarcity of suitable habitat in <br /> <br />which to fish the nets. No squawfish were collected by seining. <br /> <br />Combined intensive and nonintensive electrofishing efforts and catch <br /> <br /> <br />rates for Colorado squawfish were: (1) Stratum X2' 13.55 hr of <br />electrofishing for 0.37 squawfish/hr; (2) Stratum Y, 28.67 hr of <br />electrofishing for 0.24 squawfish/hr; and (3) Stratum Z, 23.60 hr of <br />electrofishing for 0.30 squawfish/hr. Table 3 presents data for all <br />Colorado squawfish captured during the study period. Catch per unit <br />effort by electro fishing in 1982 was generally higher than reported by <br />Miller et ale (1982a). No Colorado squawfish less than 200 mm long were <br />recorded in 1982 compared with 11 reported in 1981. Otherwise, size <br />distribution remained similar both years, with the largest percentage of <br />fish between 300 and 600 mm long. <br />A squawfish captured in the White River by FWS personnel on <br />20 August 1981 was recaptured on 3 June 1982 by study personnel. The <br />fish increased in length from 400 to 414 mm, maintained its weight at <br />480 g, and moved 2.3 mi (3.7 km) from its original capture location at <br />RM 18.6. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />Colorado squawfish were widely distributed throughout all strata. <br /> <br />Fewer Colorado squawfish were taken during the September systematic <br /> <br />. <br /> <br />24 <br /> <br />. <br />