biomagnification factor, B
Ratio of concentrations of a compound at two consecutive trophic levels at steady state. It can also be
expressed in terms of a rate constant-based bioaccumulation model
B = Cn/Cn–1= αf/ke
where α is assimilation efficiency, f is feeding rate, and ke is the first-order elimination constant. B can be calculated from field data on assumed trophic relations or from laboratory feeding experiments.
See also: trophic enrichment factor.
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