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Rainbow Trout — no vermiculations; mouth very small; scales large; red patch or band on sides; same tooth formation on vomer as in brown trout; spots black and irregular, distributed over body and fins. Habitat Like the rainbow trout, fario has shown himself suited to waters of higher temperature and less aeration than fontinalis likes. Highly carnivorous and not recommended as a stocking fish for waters where the brook trout is holding his own. Food The brown trout feeds on practically the same food as our native trouts but is more piscivorous. Breeding and Growth Fario is a spring spawner and his greatest value is his ability to grow fast. In England they grow but four ounces or so a year; in this country they will gain nearly a pound a year under favorable conditions. Dr. Henshall tells of two fish that weighed six pounds each at four years of age. They have been taken in this country up to sixteen pounds. In five years of the Field and Stream fishing contest the largest brown trout entry was nine pounds, one ounce or just one ounce larger than the largest brook trout. Brown trout, however, average larger in size than our native charr. |
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