Food habits and growth of silver and bighead carp in cages and ponds |
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| Authors: | Michael C Cremer RO Smitherman |
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| Institution: | Department of Fisheries and Allied Aquacultures, Auburn University, Agricultural Experiment Station, Auburn, AL 36830 U.S.A. |
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| Abstract: | Analysis of intestinal contents of silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) showed that silver carp consumed primarily phytoplankton while bighead carp consumed large quantities of zooplankton and detritus in addition to phytoplankton. The size of particles filtered by the bighead carp was larger (17–3,000 μm) than that filtered by silver carp (8–100 μm). Artificial feed was readily consumed by bighead carp but not by silver carp. No growth difference was indicated for silver carp in fertilized ponds and ponds receiving artificial feed. Growth of bighead carp increased substantially with the addition of artificial feed. Silver carp grew more rapidly in cages than bighead carp. |
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