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<br />. <br /> <br />Table 1. Summary of closed population abundance estimates for the Little Colorado River population of humpback chub (continued). <br /> <br />AUTHOR LOCATION DATE FISH ABUNDANCE METHOD COMMENTS <br /> SIZE ESTIMATE <br />Minckley 1990 LCR confluence (<1.2 kIn) May 1990 >150mm 6,492 Petersen Invalid sample design; no <br /> distinction between mark <br /> and recanture efforts. <br />Minckley 1990 LCR (<15 km) May 1990 >150mm 11,985 Petersen Invalid sample design; no <br /> distinction between mark <br /> and recaDture efforts. <br />Douglas and LCR confluence (<1.2 km) May 1992 >150 mm 1,320 Program CAPTURE (many Appears sound; peer- <br />Marsh 1996 estimators used; statistically reviewed journal <br /> determined the best one) I Dublication. <br />Douglas and LCR (<15 km) May 1992 >150mm 4,363 Program CAPTURE (many Appears sound; peer- <br />Marsh 1996 estimators used; statistically reviewed journal <br /> determined the best one) Dublication. <br />Valdez and R yel LCR Inflow. 1991 >200 mm 3,315 Program CAPTURE (many Appears sound; peer- <br />1995 estimators used; statistically reviewed contractor <br /> determined the best one) reDort. <br />Valdez and R yel LCR Inflow. 1992 >200 mm 3,572 Program CAPTURE (many Appears sound; peer- <br />1995 estimators used; statistically reviewed contractor <br /> determined the best one) renort. <br />Valdez and R yel LCR Inflow. 1993 >200 mm 3,558 Program CAPTURE (many Appears sound; peer- <br />1995 estimators used; statistically reviewed contractor <br /> determined the best one) reDor!. <br />Coggins and Van LCR (< 14.2 kIn) Oct. 2000 > 135 mm 1,590 Chapman-Petersen Appears sound; peer- <br />Haverbeke 2001 reviewed agencv renort. <br />Van Haverbeke LCR (< 14.2 kIn) May 2001 >IOOmm 3,527 Length - Stratified Chapman- Appears sound; peer- <br />and Coggins 2003 Petersen reviewed a"enCV renor!. <br />Van Ha verbeke LCR (< 14.2 kIn) May 2001 >150 mm 2,387 Length - Stratified Chapman- Appears sound; peer- <br />and Coggins 2003 Petersen reviewed agencv reDor!. <br />Van Ha verbeke LCR (< 14.2 kIn) May 2001 >200 mm 1,568 Length - Stratified Chapman- Appears sound; peer- <br />and Coggins 2003 Petersen reviewed a"encv reDor!. <br /> <br />'0 <br />~ <br />..... <br />Ct.l <br />.... <br /> <br />a Kaeding and Zimmerman defined the LCR Inflow Reach as Colorado River miles -51.5-71.5 <br />b Valdez and Ryel1995 defined the LCR Inflow Reach as Colorado River miles 57-65.4 <br />, Trammell and Valdez 2002 defined the LCR Inflow Reach as Colorado River miles 56.3-68.3 <br /> <br />Draft - April 21, 2003 <br /> <br />15 <br />