Ill 



Table 4-1 

 Infaunal successional stage classifications for selected taxa collected across the Seawolf 

 Mound (descriptions for polychaete families are based on Fauchald and Jumars, 1979) 



TAXA 



DESCRIPTION 



CLASSIFICATION 



POLYCHAETES: 







Ampharetidae 



tube-dwelling, surface deposit feeders 



Stage I 



Capitellidae 



mostly tubicolous, motile opportunisitc deposit feeders 



Stage I 



Chaetopteridae 



deep tube-dwelling, suspension/surface deposit feeders 



Stage II/III 



Cirratulidae 



surface deposit feeders 



Stage I 



Cossuridae 



surface deposit feeders 



Stage I 



Dorvilleidae 



free-living facultative carnivores 



Stage II/III 



Eunicidae 



free-living/tubicolous carnivores or omnivores 



Stage II/III 



Flabelligeridae 



surface deposit feeders 



Stage I 



Glyceridae 



free-living carnivores or detritivores 



Stage II/III 



Lumbrineridae 



surface/sub-surface deposit feeders 



Stage III 



Maldanidae 



head-down, sub-surface deposit feeders 



Stage III 



Nephtyidea 



motile carnivores or omnivores 



Stage II/III 



Oweniidae 



surface deposit feeders 



Stage I 



Paraonidae 



form vertical, spiraling burrows, deposit feeders 



Stage III 



Pectin aridae 



sub-surface deposit feeders 



Stage III 



Phyllodocidae 



motile predatory carnivores 



Stage II/III 



Polynoidae 



motile carnivores 



Stage II/III 



Sabellidae 



tubicolous suspension- or surface- deposit-feeders 



Stage I/II 



Sabellariidae 



tubicolous, epifaunal suspension feeders 



N/A 



Sigalionidae 



carnivores 



Stage II/III 



Spionidae 



tubicolous, surface deposit-feeders or suspension feeders 



Stage I 



Syllidae 



mostly free-living, carnivores or surface deposit-feeders 



Stage I 



Terrebellidae 



surface deposit feeders 



Stage I 



Trichobranchidae 



tubicolous, surface deposit-feeders 



Stage I 



CRUSTACEA: 







Ampelisca abdita/vadorum 



tubicolous, surface filter feeders 



Stage II 



Leptocheirus pinguis 



surface filter feeders 



Stage II 



Corophiidae 



nest or tube builder, probably filter feeders 



Stage II/III 



BIVALVE MOLLUSCS: 







Carditidae 



attached filter feeder 





Nuculidae 



shallow burrower 



Stage II/III 



Tellinidae 



shallow burrowers, feed through siphon 



Stage II 



Pitar morrhuanus 



larger-bodied burrowers 



Stage III 



The small body size of the numerical dominant (N. annulata) also precluded detection of 

 these bivalves in the images. 



At Station 75E (mound apex), faunal dominants were Nucula annulata (Stage II), 

 Prionospio steenstrupi (Stage I), and the capitellid Mediomastus ambiseta (Stage I). Stage II 

 also was represented by Ampelisca vadorum and Ampelisca abdita, while Stage HI included 

 one maldanid polychaete and four individuals of the polychaete Spiochaetopterus costarum. 

 Two REMOTS® replicates provided information; one was designated a I — H status and the 

 second a II-IH Although there is a general agreement with the taxonomic data, the 



Monitoring Cruise at the New London Disposal Site, Seawolf Mound 1995 - 1998 



