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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />FWS (Table A-I), as well as records from the.working database (Table A-2) are <br />presented in Appendix A. <br /> <br />Results <br /> <br />The database was defined as all of the available data collected in the <br />UCRB that either qualitatively or quantitatively describe the habitat used by <br />the Colorado squawfish, humpback chub, and razorback sucker. The data <br />assimilated by BIO/WEST spanned a period of 23 years, from 1964 through 1986, <br />and included the collections of 17 principal investigators. Many of the <br />reports and publications resulting from these investigations have been <br />summarized in an annotated bibliography by Wydoski et al. (1980), and in an <br />evaluation of the status, life history, and habi tat requi rements of the <br />endangered fishes by Joseph et al. (1977). <br /> <br />The data provided for this project included collections by FWS, BOR, CDOW, <br />UIMR, utah state University, Colorado State University, and various private <br />groups. Other small datasets were secured by BIO/WEST at the direction of FWS. <br />This included data from recent collections that had not yet been received by <br />FWS. The only datasets that could not be entered into the database were the <br />collections of Wick and Stoneburner (1984, studies with radiotagged Colorado <br />squawfish in the Yampa River) and those of Haynes (1982-1985, larval and YOY <br />collections in the lower Yampa River). The former data were not available, and <br />reformatting the dual-file data of the latter set into a compatible format was <br />beyond the scope of this project. <br /> <br />Data provided by FWS for 1979-1981 and the data in CWCjDATABASE were <br />stored in one of three basic formats: CATCH, RARE, and RADIO. The CATCH type <br />format generally contained data on all species of fish captured, including the <br />rare fish; RARE type format contained data on only the individual juvenile and <br />adult rare fish; and RADIO type format contained radiotelemetry data on adult <br />rare fishes. The majority of data received were in RARE or RADIO type format, <br />and the habitat data used on this project were from one of these two formats. <br />However, since rare fishes less than 60 rom total length (TL) were not stored in <br />the RARE or RADIO type formats, habitat information for these small sizes was <br />taken from the CATCH type format. Also, the CATCH type format was more useful <br />in providing a complete documentation of each study (i.e., dates, times, sample <br />locations). <br /> <br />An initial examination of the data received from FWS revealed that only <br />the variables of depth, velocity, and substrate were consistently recorded for <br />most of the database. The variable temperature was not available for most <br />collections, and cover was rarely recorded. <br /> <br />S'IUDY NARRATIVES <br /> <br />Methods <br /> <br />All data assimilated under Objective 1 were associated with study <br />descriptions provided by FWS and retrieved through a literature search. The <br />number of target fishes reported for each study was retrieved as a dataset. <br /> <br />4 <br />