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Table 6.1 Benthic infauna collected in grab samples. |
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Taxa |
Mean no. 0.023m-2 |
Comments |
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Acari |
Mites |
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Acarid sp. |
0.008 |
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Amphipoda |
Small crustaceans, brood their young |
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Ampelisca sp. |
0.005 |
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Ampelisca verrilli |
0.005 |
Abundant in coarse sands, intertidal to 50m. Annual life cycle |
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Amphipoda sp. |
0.191 |
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Amphipoda sp. b |
0.037 |
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Amphipoda sp. c |
0.06 |
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Ampithoe sp. |
0.028 |
Estuarine and marine species, some burrowing and some epibenthic. |
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Corophium sp. |
0.028 |
Tube building, living in muddy bottoms |
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Corophium lacustre |
0.014 |
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Corophium volutator |
0.005 |
Tube building, living in estuarine mud flats. |
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Crangonyx sp. |
0.07 |
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Cyathura sp. |
0.084 |
Common estuarine genus |
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Gammarus mucronatus |
0.219 |
Common estuarine species down to 4ppt, benthic and pelagic |
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Gammarus palustris |
0.809 |
Benthic, in estuaries and salt marshes, found among vegetaton. |
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Gammarus sp. |
0.247 |
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Gammarus tigrinus |
0.093 |
Lives mainly among debris in the upper estuary. |
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Haustoriidae sp. |
0.005 |
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Lembos smithi |
0.005 |
Intertidal and deeper, in areas with moderate currents, among structure. |
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Lembos websterti |
0.033 |
Associated with algae in areas with moderate current, subtidal. |
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Maera sp. |
0.065 |
Benthic and epibnehtic, in mud and along rocky shorelines. |
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Marinagammarus stierorsis |
0.014 |
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Monoculodes sp. |
0.493 |
Lives in fine sands, full marine and brackish. |
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Stenopleustes sp. |
0.009 |
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Talitridae sp. |
0.005 |
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Bivalvia |
Clams, mussels, oysters and scallops |
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Bivalvia sp. |
0.288 |
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Bivalve (juv) |
0.651 |
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Corbicula sp. |
0.102 |
Asian clam (introduced), more common in fresh or brackish areas |
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Macoma mitchelli |
0.009 |
Rosy clam |
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Mulinia sp. |
0.047 |
Dwarf surf clam |
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Mulinia lateralis |
0.056 |
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Rangia cuneata |
0.047 |
Mud or muddy sand, more common in brackish or fresh areas |
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Spisula sp. |
0.005 |
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Tellinidae sp. |
0.042 |
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Branchiopoda |
Water fleas, includes the genus Daphnia |
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Cladocera sp. |
0.005 |
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Daphnia sp. |
0.126 |
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Decapoda |
shrimp, crabs, crayfish |
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Palaemonetes pugio |
0.005 |
Grass shrimp, widespread and common estuarine species |
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Pinnixia sp. |
0.005 |
Pea crabs |
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Uca sp. |
0.019 |
Fiddler crabs, benthic burrowers |
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Enteropneusta |
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Saccoglossus sp. |
0.005 |
Acorn worms |
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Fish |
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Juvenile flatfish |
0.005 |
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Larval fish |
0.005 |
Unable to identify |
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Leiostomus xanthurus |
0.009 |
Juvenile spot |
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Trinectes maculatus |
0.005 |
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Gastropoda |
Snails |
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Gastropoda sp. |
0.753 |
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Insecta |
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Brilla sp. |
0.005 |
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Cardiocladius sp. |
0.005 |
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Ceratopogonida sp. |
0.005 |
Biting midges, "no-see-ums" |
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Chaoborus albatus |
0.005 |
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Chironomidae sp. |
0.386 |
Large family of non-biting flies, mostly benthic larvae. |
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Chironomus sp. |
0.023 |
Genus of chironomids. |
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Coeltanypus sp. |
0.149 |
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Collembola sp. |
0.005 |
Spring tail |
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Cryptochironomus sp. |
0.023 |
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Diamesinea sp. |
0.033 |
Subfamily of chironomids. |
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Dicrotendipes sp. |
0.009 |
Genus of chironomids. |
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Diptera sp. |
0.014 |
Flies, mosquitoes, and midges |
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Ephoron leukon |
0.005 |
Lives in u-shaped burrows in streams. |
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Hemiptera sp |
0.005 |
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Insecta sp. |
0.074 |
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Litobrancha recurvata |
0.005 |
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Palpomyia/Bezzia sp. |
0.051 |
Genus of biting midges. |
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Polymitarcyidae sp. |
0.005 |
Burrowing larvae, this is the group E. leukon belongs to |
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Polypedilum sp. |
1.074 |
Chironomid larvae (27 species in the southeast) |
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Procladius sp. |
1.265 |
Chironomid larvae. |
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Tanypodinae sp. |
0.186 |
Chironomid larvae. |
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Tanytarsus sp. |
0.005 |
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Tipulidae sp. |
0.005 |
Crane flies (large group, 60 genera) |
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Isopoda |
Crustaceans, group includes fish lice and pill bugs |
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Chiridotea almyra |
0.019 |
Common genera, associated with sandy bottoms, burrowing |
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Chiridotea coeca |
0.005 |
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Edotea sp. |
0.126 |
Common species, frequently found with algae |
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Edotea triloba |
0.056 |
Common species, frequently found with algae |
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Erichsonella sp. |
0.005 |
Often associated with structure |
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Eusymmerus sp. |
0.023 |
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Idoteidae sp. |
0.009 |
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Isopoda sp. |
0.023 |
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Mysidea |
Shrimp-like crustaceans, important in fish diets, epibenthic/pelagic |
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Mysidae sp. |
0.005 |
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Mysidopsis sp. |
0.009 |
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Mysidopsis biglowi |
0.005 |
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Mysidopsis furca |
0.005 |
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Mysis sp. |
0.005 |
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Neomysis sp. |
0.005 |
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Nemertea |
Ribbon worms, benthic predators |
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Nemertea sp. |
0.098 |
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Oligochaeta |
Group of worms that includes earthworms, more common in brackish and freshwater areas |
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Oligochaeta sp. |
17.93 |
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Ostracoda |
Small crustaceans that include planktonic and benthic groups |
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Ostracoda sp. |
0.874 |
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Platyhelminthes |
Flatworms, most are benthic predators |
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Platyhelminth sp. |
0.009 |
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Polychaeta |
Bristle worms, large group with many estuarine and marine species |
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Aricidea sp. |
0.005 |
Thread worms |
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Aricidea suecica |
0.005 |
Thread worms |
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Armandia maculata |
0.005 |
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Capitellidae sp. |
0.13 |
Family of deposit feeding, burrowing worms |
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Caulloriella sp. |
0.005 |
Surface burrowing deposit feeder |
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Cossuridae sp. |
0.028 |
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Glyceridae sp. |
0.009 |
Blood worms |
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Gonianidus sp. |
0.005 |
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Heteromastus filiformis |
0.047 |
Burrowing deposit feeder in the family Capitellidae |
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Hobsonia florida |
0.005 |
Tube-dwelling worm, deposit feeder |
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Hypereteone heteropoda |
0.014 |
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Laeonereis culveri |
0.167 |
Species of clam worms |
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Laeonereis sp. |
0.033 |
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Maldanidea sp. |
0.005 |
Bamboo worms, tube dwelling deposit feeders |
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Maranzellaria virdis |
10.97 |
Species of Spionidae, tolerant of low salinites |
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Mediomastus ambiseta |
0.995 |
Burrowing deposit feeder belonging to the family Capitellidae |
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Mediomastus californiensis |
0.419 |
Burrowing deposit feeder belonging to the family Capitellidae |
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Mediomastus spp. |
6.572 |
Burrowing deposit feeder belonging to the family Capitellidae |
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Neanthes succinea |
0.014 |
Species of clamworm, benthic predator |
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Nereidae sp. |
0.033 |
Clamworms |
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Nereidae (juv) |
0.005 |
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Nereis falsa |
0.088 |
Species of clamworm, benthic predator |
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Nereis sp. |
0.051 |
Species of clamworm |
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Ophelia denticulata |
0.005 |
Burrower |
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Parandalia sp. |
0.167 |
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Phyllodocidae sp. |
0.005 |
Paddle worms |
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Polychaeta sp. A |
0.065 |
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Polychaeta sp. B |
0.005 |
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Polychaete sp. |
0.084 |
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Polydora socialis |
0.116 |
Species of Spionidae |
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Polydora sp. |
0.009 |
Species of Spionidae |
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Samythella eliasoni |
0.005 |
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Scolelepis sp. |
0.005 |
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Spionidae sp. |
0.358 |
Tube-dwelling deposit feeders, facultative predators and filterers |
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Streblospio benedicti |
1.698 |
Species of Spionidae |
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Terebellidae sp. |
0.019 |
Partchment tube worms, deposit feeders |
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Tharyx sp. |
0.005 |
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Sipunculid |
Peanut worms |
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Sipunculid sp. |
0.005 |
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Tanaidacea sp. |
0.051 |
Small crustaceans, many living in tubes |
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