Population energetics of the intertidal isopod Cirolana harfordi |
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| Authors: | W. S. Johnson |
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| Affiliation: | (1) Hopkins Marine Station of Stanford University, Pacific Grove, California, USA;(2) Department of Biological Sciences Marine Science Program, Goucher College, 21204 Towson, Maryland, USA |
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| Abstract: | Laboratory experiments and field measurements generated a population energy-budget estimate for the isopod Cirolana harfordi (Lockington). Assimilation of food energy averaged 88% on a diet of fish. About 35% of assimilated energy is allocated for growth and reproduction, while the bulk of the remainder is used for maintenance and activity (respiration). The high growth efficiency of C. harfordi is discussed with respect to  ecological efficiency and energy transfer in marine systems. |
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