Note
Comparisons of demersal zooplankton collected in three structurally different emergence traps indicated that density and diversity estimates are affected by design features and sampling procedures. The smallest mesh netting (63 μm) in the walls of Hobson-Chess traps contained larger catches than traps with 202- or 333-μm mesh. Samples from Porter-Porter traps tethered 1 and 10 cm above the bottom had statistically more zooplankton than all other traps set on the substratum.