Sectoin 5: Tables and Graphs 96-97

Section 5 Tables and Figures

Table
Environmental impacts following Hurricane Fran

Figures
River Flow, Surface Dissolved Oxygen, BOD, Light Attenuation, Ammonia, Total Phosphorus

**Any tables or figures not included on this site are available in hard copy from the Center for Marine Science at the University of North Carolina at Wilmington**

Table 5.1 Environmental impacts to the Cape Fear River, Black River, and Northeast Cape Fear River following Hurricane Fran.

Impact	NC11	BR210	NCF117
Peak flow (cfs)	44,600	13,900	9,470
Human sewage (gal)	70,000,000	4,600,000	1,000,000
Swine lagoon accidents	-----	1	4
September BOD5 (mg/L)	1.5	1.7	>8.2
Minimum DO (mg/L)	2.0	2.0	0.0
Recorded DO > 5.0	Sept. 24	Oct. 15	Nov. 12
September ammonia (mg/L)	80	80	140
September total N (mg/L)	1,240	1,750	2,360
September total P (mg/L)	200	200	380

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Table 5.2 Abundances of numerically common infauna and higher taxonomic groups at each site and sampling period. Numbers indicate means per sample (1 S.E. in parentheses). F-value is from Analysis of Variance comparing abundances among sampling periods and means having the same superscript do not differ significantly (SNK test, p<0.05). ns-no significant difference among seasons. *p<0.05, **p<0.01, ***p>0.001.

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Site Taxa		F	Dec 1995	Mar 1996	Aug 1996	1 Oct 1996	31 Oct 1996	Dec 1996
NCF6
	Amophipoda sp.	1.86^ns	0.2(0.2)	2.0(1.4)	0.0(0.0)	---	0.0(0.0)	0.0(0.0)
	Cyanthura sp.	25.23***	0.0(0.0)^a	0.8(0.4)^b	4.0(1.0)^c	---	0.0(0.0)^a	0.0(0.0)^a
	Gammarus palustris	4.43*	5.4(3.0)^a	0.0(0.0)^b	0.0(0.0)^b	---	0.0(0.0)^b	0.0(0.0)^b
	Gamarus tigrinus	2.03^ns	1.8(1.4)	0.0(0.0)	0.0(0.0)	---	0.0(0.0)	0.0(0.0)
	Chironomidae spp.	2.05^ns	8.2(5.6)	0.0(0.0)	0.0(0.0)	---	0.0(0.0)	1.8(1.8)
	Procladius sp.	3.13*	0.0(0.0)^a	1.4(0.9)^ab	1.7(0.7)^b	---	0.0(0.0)^a	0.4(0.2)^ab
	Oligochaeta	2.89^ns	1.2(0.5)	0.2(0.2)	1.7(0.7)	---	1.4(0.9)	5.2(1.7)
	Maranzellaria virdis	11.85***	0.0(0.0)^a	8.0(4.0)^b	0.0(0.0)^a	---	0.0(0.0)^a	0.0(0.0)^a
	Total Amphipods	3.54*	7.4(3.3)^a	3.4(1.6)^ab	4.0(1.0)^a	---	0.0(0.0)^b	1.2(0.6)^ab
	Total Isopods	---	0.0(0.0)	0.0(0.0)	0.0(0.0)	---	0.0(0.0)	0.0(0.0)
	Total Insects	1.60^ns	8.4(5.8)	3.2(1.0)	1.7(0.7)	---	0.2(0.2)	4.4(1.9)
	Total Bivalves	0.88^ns	0.0(0.0)	0.0(0.0)	0.0(0.0)	---	0.0(0.0)	0.0(0.0)
	Total Polychaetes	4.81**	0.8(0.4)^a	8.4(4.2)^b	0.3(0.3)^a	---	0.6(0.4)^a	0.4(0.2)^a
	Total Infauna	4.11*	19.2(8.8)^a	17.0(4.6)^a	7.7(1.2)^a	---	2.2(0.9)^b	12.2(3.9)^a
NAV
	Polypedilum sp.	6.20**	0.0(0.0)^a	7.4(3.7)^b	---	---	1.0(1.0)^ab	7.0(0.9)^bc
	Procladius sp.	8.87**	0.0(0.0)^a	8.4(2.5)^b	---	---	7.0(3.5)^b	11.4(1.0)^b
	Oligochaeta	2.48^ns	23.0(4.1)	56.8(18.1)	---	---	39.0(10.1)	114.6(31.8)
	Maranzellaria virdis	10.73***	0.0(0.0)^a	28.6(10.6)^b	---	---	0.0(0.0)^a	0.0(0.0)^a
	Total Amphipods	2.05^ns	0.4(0.2)	2.2(1.4)	---	---	0.0(0.0)	4.0(1.9)
	Total Isopods	0.84^ns	0.2(0.2)	0.0(0.0)	---	---	0.0(0.0)	0.0(0.0)
	Total Insects	4.82*	7.4(2.9)^a	18.6(4.8)^b	---	---	14.7(1.5)^b	20.2(1.2)^b
	Total Bivalves	0.84^ns	0.4(0.2)	4.0(3.3)	---	---	2.0(0.6)	4.6(3.0)
	Total Polychaetes	7.29**	4.4(3.7)^a	30.0(10.0)^b	---	---	0.0(0.0)^a	3.2(3.0)^a
	Total Infauna	4.53*	36.8(9.6)^a	112.6(29.0)^ab	---	---	55.7(11.7)^ab	160.6(40.3)^b
M54
	Gammarus palustris	1.83^ns	4.8(4.1)	0.8(0.8)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)
	Monoculodes sp.	18.53***	0.5(0.3)^a	7.0(1.7)^b	0.8(0.8)^a	0.0(0.0)^a	0.0(0.0)^a	0.3(0.3)^a
	Edotea sp.	2.03^ns	0.8(0.5)	2.8(1.7)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)
	Oligochaeta	3.87*	1.5(0.6)^a	0.8(0.4)^a	6.25(1.7)^b	0.6(0.4)^a	1.2(0.6)^a	1.5(0.6)^a
	Maranzellaria virdis	46.07***	0.0(0.0)^a	43.6(17.4)^b	2.0(0.7)^c	0.0(0.0)^a	0.0(0.0)^a	0.3(0.3)^a
	Mediomastus sp.	41.01***	10.75(1.9)^a	0.0(0.0)^b	2.0(0.7)^c	0.2(0.2)^b	0.0(0.0)^b	0.0(0.0)^b
	Total Amphipods	11.95***	5.3(3.9)^a	9.0(2.0)^b	0.8(0.8)^c	0.0(0.0)^c	0.2(0.2)^c	0.3(0.3)^c
	Total Isopods	10.16***	1.8(0.3)^a	5.4(1.6)^ab	1.25(0.5)^ac	0.0(0.0)^c	0.0(0.0)^c	0.0(0.0)^c
	Total Insects	18.82***	0.0(0.0)^a	0.0(0.0)^a	0.0(0.0)^a	0.2(0.2)^a	2.2(0.4)^b	0.3(0.3)^a
	Total Bivalves	0.86^ns	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.2(0.2)	0.0(0.0)
	Total Polychaetes	23.68***	13.0(1.6)^a	43.8(17.4)^b	5.5(1.6)^c	0.8(0.5)^d	0.6(0.4)^d	0.3(0.3)^d
	Total Infauna	21.06***	22.0(3.5)^a	59.6(18.0)^b	13.8(3.7)^a	4.6(1.2)^c	4.4(0.7)^c	2.5(0.6)^c
M31
	Maranzellaria virdis	53.99***	3.2(1.6)^ab	127.4(36.6)^c	2.5(1.5)^a	0.2(0.2)^ab	0.0(0.0)^b	0.2(0.2)^ab
	Mediomastus sp.	12.91***	2.2(1.4)^a	5.0(0.8)^a	1.5(1.5)^a	6.0(2.6)^a	36.6(9.3)^b	184.4(33.6)^b
	Total Amphipods	7.21***	1.8(0.4)^a	1.8(0.8)^a	1.5(0.5)^a	0.0(0.0)^b	0.0(0.0)^b	0.2(0.2)^b
	Total Isopods	---	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)
	Total Insects	0.90^ns	0.4(0.4)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)	0.0(0.0)
	Total Bivalves	6.26***	0.0(0.0)^a	4.6(1.9)^b	1.0(1.0)^a	0.3(0.3)^a	0.4(0.2)^a	0.4(0.2)^a
	Total Polychaetes	21.69***	10.2(2.3)^a	137.8(37.6)^b	12.5(9.5)^a	15.0(3.2)^a	43.2(11.0)^c	193.6(33.6)^b
	Total Infauna	21.66***	12.8(2.4)^a	144.2(39.4)^b	16.5(9.5)^a	18.7(3.4)^a	43.6(11.0)^c	194.4(33.8)^b

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