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SUMMARY

The proximate composition and sodium and potassium contents of four species of bottom fish from Pacific Coast waters were investigated. Pacific Ocean perch, Pacific cod, and lingcod were quite uniform in composition regardless of species, size, season and area of capture, and method of preservation on board the fishing vessel. The averages were 79-81% moisture, 18-19% protein, 0.5-1.5% oil, 1.1-1.3% ash, 60-70 mg% sodium, and 390-440 mg% potassium. Sablefish varied greatly in oil content, with a range of 3-23% and an average of 15%. Variations in the other constituents were rather large; averages were 71% moisture, 13% protein, 1% ash, 56 mg% sodium, and 348 mg% potassium.