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S <br />Cove. The Arizona Bay area refers to the combined areas of Arizona Bay, <br />Yuma Cove, and Gold Cove in Little Basin. All other areas indicate <br />specific locations. <br />3.0 METHODS <br />3.1 Cove Surveys. <br />Cove surveys were conducted along representative shoreline sections <br />of Lake Mohave to determine distributions, relative abundances, and <br />habitat preferences of spawning razorback suckers and bonytail chubs. <br />The surveys were conducted in February 1982 and included the area of the <br />reservoir lying south of Great West Cove, Arizona. The surveys were made <br />from the boat with two observers, one located at the bow and the other <br />on the stern. Each had excellent views of the shoreline areas by <br />standing on platforms 1 m above the water. Clarity of the water usually <br />allowed for visibility to a depth of 3-4 m allowing for positive fish <br />species identification. Areas were resurveyed when visibility was <br />reduced. Relative abundances of fish, substrate types, and vegetation, <br />when present, were later compared and compiled between both observers. <br />3.2 Sampling Locations. <br />Sampling of razorback suckers was conducted in twelve locations of <br />Lake Mohave during the 1982 and 1983 spawning seasons. Efforts were <br />concentrated primarily in the two major spawning areas identified during <br />the cove surveys. These were the Arizona Bay area, and the Six Mile <br />Coves area (Fig. 1). These major spawning areas were netted monthly from <br />January through May 1982. Other sampling sites were sampled less <br />frequently during the spawning season. Netting intensity was reduced in <br />1983, and work was concentrated in the Six Mile Coves area. This area