Abstract
Serological methods utilizing taxon-specific antibodies were used to identify trophic connections in a salt marsh of South Carolina (U. S. A.). The incorporation of meiofauna within the benthic invertebrate food web was detected with these methods when microscopial examinations of predator stomachs revealed nothing but amorphous material and detritus. Measurements of soluble prey proteins in both predator guts and surficial sediments provided data to quantify the trophic connections. Difficulties with data interpretation limit the utility of serological methods for quantifying predation in the field.
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