Taxonomic composition (species and stage abundances) vary from station to station.  We are looking at the value of aggregating data by major life history stage (copepod/nauplii) and size as a way to characterize the particle environment that larvae encounter.  This is not to say that all similarly-sized particles are the same because, for instance, they may not all be similarly detectable or catchable.  But—here it is (next slide).  Note, we increased the length range in each size category in order to maintain viable sample sizes—the larger the organism the fewer there are in a sample (our pump samples have pretty small volumes, which is a trade-off for the high vertical resolution and small mesh size (40 um).