Abstract
Polychaete feeding guilds have recently been examined as potentially useful parameters in environmental impact assessment. Densities of polychaete species from three studies in the lower Chesapeake Bay were classified into feeding guilds and correlated with water depth, median phi size and percent silt-clay of the sediment. Polychaete densities were also grouped randomly and correlated with environmental variables. For two of the three studies a feeding guild classification did not give significantly more correlations than expected from random groupings. Problems associated with using polychaete feeding guilds as composite biological variables are discussed.
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