The diamond turbot (Hypsopsetta g•uttulata) population from Anaheim Bay, California was analyzed by a model that describes feeding rates in a cyclical diel feeding fish and that allows the calculation of daily ration from field data. Diamond turbot over 25 g in body weight at $.76% of their body weight per day and had an estimated gross growth efficiency based on 80% digestion of 12.0%; the population of $,400 diamond turbot ate $,õ90 kg/year, mostly clam siphons and polychaetes.

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The primary objective of this study was to identify and characterize juvenile white sturgeon (Acipenser transmontanus) habitat in the Lower Fraser River downstream of Hope, BC, Canada. A secondary objective was to estimate the juvenile white sturgeon population in the Lower Fraser River. A total of 1867 white sturgeon was captured with gill nets at 26 sites in the Lower Fraser River. The greatest numbers of sturgeon were caught in three sloughs; all but three sturgeon were captured in the June to August period. These three sloughs all had water deeper than 5 m and current that was multidirectional. Turbidity ranged greatly from 1.5 NTU (Nephelometric Units) to 67.0 NTU and the substrate of most sites was fine sediments, fine sand, silt and clay. Stomach contents were mysid shrimp (Mysidacea), midge larvae (Chironomidae) and peamouth chub (Mylocheilus caurinus). We identified three of 26 sites with appreciable numbers of juvenile sturgeon, identified water quality parameters of these sites, identified any incidental species that might be prey and also determined that between 1985 and 1993 the juvenile white sturgeon population had declined.

Approximately 500 Paiute trout inhabited 2 out of 5.3 km of available stream during the summer of 1974. Distribution of fish was determined by mark-recapture, trapping, and visual observations; there was little large-scale movement. Twenty-one fish were transplanted within the stream to an unpopulated section, and 15 were recaptured there after 2 months. During this time, only four fish moved into the donor area of the stream. Transplantation was successful; therefore, habitat quality was probably not inhibiting fish occupation of most vacant stream areas. Slow dispersal of this population of fish appears to be limiting its distribution within the stream. G•me 20:105-112. UNITED STATES DEPARTMENT OF INTERIOR. 1973. Rare and endangered fish and wildlife of the United States. Bur. Sport Fish. Wildl. Resour. Pub. 34. VESTAL, E. H. 1947. A new transplant of the Paiute trout (Saltno clarkii seleniris) from Silver King Creek, Alpine County, California. Calif. Fish Game 33:89-95. WONt;, D. M. 1975. Aspects of the life history of the Paiute cutthroat trout, Saltno clarki seleniris Snyder. in North Fork of Cottonwood Creek, Mono County, California, with notes on behavior in a stream aquarium. M.A. Thesis, Calif. State Univ., Long Beach. 178 pp.

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