The dominant zooplanktonlc decapods found at MNPS were zoea and 

 inega.lopa (early lile stages) of the infraorder BracViyura (true crabs). 

 Brachyuran larvae contributed between 1 and 2% to the zooplankton 

 collected at MNPS since 1976 and more than 65% of the zooplanktonic 

 decapods collected in 1983 (Tables 1 and 2) . Brachyuran zoea were found 

 in the zooplankton from March through November (Fig. 16) , and were most 

 abundant in late spring and summer (May through August) , corresponding 

 to the adult spawning periods (Dittel and Epif iano 1982) . The harmonic 

 regression modeled this observed seasonal pattern of brachyuran zoea 

 abundances with R^=0.66 (Fig. 16) . Abundances of brachyuran zoea were 

 greater during night collection periods offshore (NB) . Deviations from 

 the regression model were highest in 1983 suggesting higher than normal 

 brachyuran zoea abundances in that year (Fig. 17). 



Cladocera 



Most cladocerans live in freshwater. A few marine genera are found 

 In MNPS zooplankton including Podon spp., Evadne spp., and Penilia spp. 

 Cladocerans contributed 0.2-11,1% at NB and 0.3-2.3% at EN. In 1983, 

 they contributed 1% at EN and 2% at NB (Table 3). 



There were no annual patterns evident for any cladoceran genus. No 

 spatial (EN vs. NB) or temporal (day vs. night) preference was detected. 

 Evadne spp. and Podon spp. were found sporadically through the years and 

 showed no consistent seasonal preferences. However, these species 

 commonly occur together. 



Amphipoda 



Most amphipods are bcnthic, however many appear in zooplankton 

 collections in shallow sea areas (Newell and Newell 1973) . Benthic 

 amphipods could be present in zooplankton due to active migration into 

 the water column at night (Newell and Newell 1973) or from being lifted 

 by currents or turbulence. 



Amphipods collected at Millstone contributed between 0.1-1.2% at NB 

 and 0.5-7% at EN to the zooplankton since 1976 and 0.2% (NB) and 0.5% 

 (EN) to the 1983 collection (Table 3). More than 99% of the amphipods 



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