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Growth of juvenile American lobsters in semiopen and closed culture systems using formulated diets
Authors:S. R. Wadley  R. A. Heckmann  R. C. Infanger  R. W. Mickelsen
Abstract:
Growth of juvenile American lobsters, Homarus americanus , raised in four semiopen culture systems, with daily water exchange rates ranging from 29 percent to 3.3 percent, was compared with growth in a completely closed system. Animals were fed a formulated pelleted ration, water quality factors were measured daily, and changes in concentration of nitrate, orthophosphate, and total organic carbon were monitored. Results of two 90-day trials indicate that growth increased in the system with the lower water exchange rates. Maximum growth occurred in the closed system.
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