Table 7.4. Dominant taxa (listed in decreasing order of abundance) at 4 sites within the Cape Fear River estuary. Numbers indicate means per 225 cm2 grab (+1 SE). Listed are all taxa comprising at least 5% of the total individuals collected at a site on a sampling date. Summer hurricane is Bertha; fall hurricanes are Fran, Bonnie and Floyd
n = 24 n = 22 n = 9 n = 5 n = 5 n = 22
Site Winter Spring Summer Summer After Hurricane Fall Fall After Hurricane
NCF6 Chironomid. 2.1 (1.3)

Oligochaeta 2.0 (0.6)

Polypedilum 1.2 (0.5)

Maranzellaria viridis 1.2 (0.6)

Gamarus palustris 1.1 (0.7)

Polydora socialis 1.0(0.5)

 Maranzellaria viridis 7.2 (2.2)

Oligochaeta 4.9(1.7)

Bivalve juv. 1.7 (0.8)

 Polydora socialis 25.5 (21.0)

Oligochaeta 2.8(1.8)

 Polypedilum 6.0(5.3)

Procladius 4.6(2.1)

Cyathura 2.8(1.0)

Oligochaeta 1.6(0.6)

Tanaid sp. 1.2(1.2)

 Maranzellaria viridis 3.0(0.7)

Oligochaeta 0.8(0.5)

Isopoda sp. 0.5(0.5)

Gammarus sp. 0.3(0.3)

Insecta sp. 0.3(0.3)

 

 

 Gastropoda sp. 2.1(1.2)

Polypedilum 1.7(0.6)

Oligochaeta 0.8 (0.3)

Bivalve juv. 0.6 (0.4)
NAV Oligochaeta 82.8(16.7)

Maranzellaria viridis 31.8(12.1)

 Oligochaeta 64.1(16.3)

Maranzellaria viridis 10.2(4.3)

Gastropoda 7.2 (6.1)

 Oligochaeta 45.2(37.0) Oligochaeta 39.8(5.9) Oligochaeta 63.5(6.0) Oligochaeta 31.3(9.0)

Procladius 2.8 (0.8)
M54 Maranzellaria viridis 9.8(2.4)

Oligochaeta 5.1(1.4)

Mediomastus 3.1(0.9)

Gammarus palustris 2.3(1.4)

 Maranzellaria viridis 14.4 (5.2)

Gammarus palustris 3.9(2.8)

Monoculodes 3.3(0.7)

Mediomastus 2.2 (1.3)

 Streblospio benedicti 3.1 (0.9)

Oxyurostlis smithi 0.7(0.5)

Parandalia 0.7(0.5)

Oligochaeta 0.6(0.4)

 Oligochaeta 5.8(1.4)

Mediomastus 2.2(0.6)

Maranzellaria viridis 1.6(0.7)

Monoculodes 1.0(0.6)

Eusymmerus 1.0(0.5)

Laeonereis culveri 0.8(0.4)

 Streblospio benedicti 20.8(6.9)

Mediomastus 1.4(1.2)

 Mediomastus 5.8(1.7)

Parandalia 0.8(0.2)

Gammarus tigrinis 0.6(0.4)

Oligochaeta 0.6(0.2)
M31 Mediomastus 39.4 (16.4)

Maranzellaria viridis 9.7 (2.5)

 Maranzellaria viridis 32.8(12.1)

Mediomastus sp. 23.9(10.9)

 Mulinea lateralis 5.7 (1.9)

Bivalve juv. 4.0(2.6)

Mediomastus 23.7 (3.7)

 Mediomastus 7.8(5.2)

Laeonereis culveri 5.8(2.8)

Maranzellaria viridis 3.4(1.3)

Monoculodes 2.4(0.8)

Streblospio benedicti 2.2(1.2)

Nereis falsa 1.6(0.8)

 Cumacea 3.8(1.4)

Mediomastus 7.6(4.5)

Streblospio benedicti 34.0(7.5)

 Mediomastus 22.4(6.1)

Parandalia 2.04(0.9)