Laserfiche WebLink
<br />.-, <br />r.-> <br />l'~ <br /> <br />Figure 4.23. Length-frequency histogram for bluehead sucker collected <br />during October USFWS electrofishing surveys on the San Juan River <br />(RM 52 to 158). ...............,................................ 4 - 65 <br /> <br />-.] <br />CD <br /> <br />Figure 4.24. <br /> <br />Figure 4.25. <br /> <br />Figure 4.26. <br /> <br />Figure 4.27. <br /> <br />Figure 4.28. <br /> <br />Figure 4.29. <br /> <br />Figure 4.30. <br /> <br />Figure 4.31. <br /> <br />Figure 4.32. <br /> <br />Regression line fitted to plot of average catch rates of bluehead sucker <br />collected during October (1991 to 1997) USFWS electrofishing surveys <br />on the San Juan River versus sampling trip discharge (as measured <br />at USGS gage 09371010, Four Corners, New Mexico). . . . . . . . . . . . . . . . . . . 4 - 65 <br /> <br />Average catch rates (:I: standard deviation) of bluehead sucker <br />during October USFWS electrofishing surveys on the San Juan River <br />(RM 159 to 180). ................,.............................. 4 - 66 <br /> <br />San Juan River discharge (as measured at USGS gage 09371010, <br />Four Corners, New Mexico) versus average juvenile bluehead sucker <br />condition. Condition factor was determined using data collected <br />by USFWS electrofishing surveys (RM 52 to 158) <br />within designated reaches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 67 <br /> <br />San Juan River discharge (as measured at USGS gage 09371010, <br />Four Corners, New Mexico) versus average adult bluehead sucker <br />condition. Condition factor was determined using data collected <br />by USFWS electrofishing surveys (AM 52 to 158) <br />within designated reaches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 67 <br /> <br />Density of speckled dace in San Juan River secondary channels <br />(5-mile increments), 1992 to 1997, New Mexico, Colorado, and Utah. . . .. . . . 4 -70 <br /> <br />Aelative abundance of nonnative fishes (top) and catch-per-unit-effort <br />(CPUE) (number of fish/minute) for channel catfish and common carp <br />(bottom) collected during May and October electrofishing surveys <br />of the San Juan River, 1991 to 1997. . . . . . . . . . . . , . . . . . . . . . . .. . . . . . . . . 4 -73 <br /> <br />Catch-per-unit-effort (CPUE) (number of fish/minute) for channel catfish <br />(top) and common carp (bottom) by size class and 'year collected <br />during May and October electrofishing surveys of the San Juan River, <br /> <br />1991 to 1997. . .. . . . . . . .. . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . ' . .. . 4 - 74 <br /> <br />Catch-per-unit-effort (CPUE) (number of fish/minute) for channel catfish <br />(top) and common carp (bottom) by size class and year collected <br />during May and October electrofishing surveys <br />of the San Juan River, 1997. .......................... '. . . . . . . . . . . . 4 - 75 <br /> <br />Catch-per-unit-effort (CPUE) (number of fish/minute) <br />for channel catfish (top) and common carp (bottom) by size class <br />and year collected during May electrofishing surveys <br />of the San Juan River, 1991 to 1997. . . , . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 4 -76 <br /> <br />T-9 <br /> <br />Table of Contents <br />Draft Flow Report <br /> <br />SJRIP Biology Committee <br />16 September 1998 <br />