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LIST OF TABLES <br />Page <br />' 1. Data for ten humpback chub implanted with radio transmitters 8 <br />at Black Rocks, Colorado River, Colorado, 1983............ <br />2. Data for five gravel-pit ponds stocked with hatchery-reared 10 <br />Colorado squawfish, October, 1983 ......................... <br />3. Data for Colorado squawfish implanted with radio transmitters <br />` with theoretical 180-day battery life, Colorado River, <br />spr ing 1982 ............................................... 12 <br />4. Data for Colorado squawfish implanted with radio transmitters~l3 <br />Colorado River, fall 1982 and spring 1983 ................. <br />5. Frequency of occurrence (%) of roundtail chub and humpback <br />chub of mature size (greater than 250 mm total length) <br />from the Colorado River that showed external charac- <br />teristics of seasonal reproductive development, 1983...... 20 <br />6. Morphometric and meristic measurements taken from live round- <br />tail chub and humpback chub, Black Rocks area of the 26 <br />Colorado River, Colorado 1983 .......................•••••• <br />7. Colorado squawfish larvae collections, Yampa River 1983..... 27 <br />8. Colorado squawfish larvae collections, Green River 1983..... 28 <br />9. Mean catch per unit effort (CPUE)for age-0 Colorado squawfish <br />(CS) collected by 3-mm-mesh seine from backwaters in <br />10-mile reaches of the Colorado River, September and <br />October, 1983 ............................................. 31 <br />10. Mean catch per unit of fishing effort (CPUE)for hatc'nery- <br />reared Colorado squawfish (CS) collected from the <br />Walter Walker Wildlife Area backwater (WWWA) and the 35 <br />10-km river reaches upstream and downstream of WWWA....... <br />.i <br />ii <br />