RESULTS 



From October 1976 through September 1983, organisms from over 100 

 different taxa were identified from trawl, seine, plankton and 

 impingement monitoring programs. The relative abundance of these taxa 

 is indicated by the percent species composition (Table 1). Clearly, all 



Flnflsh percent species composition from various HNPS sampling progr 

 September 1983 (complete listing la in Appendix 1). 



during October 1976 through 



Species 



Impingement* 



Plankton 

 Entralnment Nlantlc Bay 

 Eggs La rvae Eggs Larvae 



Pseudopleuronectes 



Anchoa 6pp. (a) 

 Myoxocephalus aenaeus 

 Menldla spp. (b) 

 Gasterosteus wheat land! 

 Mlcrogadus tomcod (p) 



Gaste 



uleatus 



Tautogolabrus adspersus 

 ScophthalmuB aquosus 

 Syngn athus fuscus 



trlacanthus 



Alosa spp, (c) 

 Merlucclus bllincaris 

 Tauto^a onitls 

 Mo rone amerlcana 

 Cyclopterus lumpus 

 Osmerus mordax 

 Raja 8pp. (d) 

 Prlonotus spp. (e) 

 Brevoortia tyrannus 

 Cynosclon regalia 

 Sphoeroldes maculatus 

 Angullla rostrata 

 Fundulus spp. (f) 

 Liparls atlantlcus (p) 

 Ops anus tau 

 PollachluB vlrens 

 Parallchthya dentatus 

 Pomatomua saltatrix 

 Ammodytea amerlcan ug (p) 

 Urophyc Is spp. (g) 

 Stenotomus chryaops 



*ImplngeiQent percents have been corrected for variations In flow 

 trace- <0.01Z 

 (p) Indicates most probable Identification 



(a) Includes A. mltchllll and A. hepsetua 



(b) Includes M. menldla and M. berylllna 



(c) Includes A. aestlvalle , A. medlocrls , A. pseudoharenRus and A. sapldlsslma 



(d) Includes R. erlnacea , R. ocellata and R. eglanterla 



(e) Includes ^. carolinu's and F. evolans 



(f) Includes F. ma jails and F. heteroclltua 



(g) Includes U. regla , U. chuas and U. tenuis 



of these taxa could not be discussed in the same detail. Approximately 

 90% of the taxa individually contributed less than 0.01% to any program. 

 These taxa were not sufficiently abundant for analyses other than simple 

 presence-absence summaries. The criterion used to select certain taxa 

 for detailed analyses and discussion was that they be susceptible to 

 entrainment or impingement. The basis used was that they appeared among 

 the top 80% impinged or entrained taxa (see Appendix 2 for 1983 

 impingment estimates) . 



