U.S. Department of the Interior
U.S. Geological Survey
OFR-97-460

Table 2 Russell Bank 19B Percent Abundance of Molluscan Fauna
	Gastropods
Depth in Core	Acteocina canaliculata	Amaea spp.	Bittium varium	Bulla sp.	Caecum puchellum/floridanum	Cerithidea spp.	Cerithium spp.	Conus sp.	Crepidula sp.	Marginellids	Modulus modulus	Olivella sp.	Rissoina spp.	Turritella exoleta	Vitrinellids	Rare Gastropods	Unidentified gastropod fragments, unknown sp., and juveniles
0-2 cm	0.00	0.00	1.28	0.00	1.47	0.00	5.68	0.00	0.73	0.92	1.83	0.00	2.20	0.00	0.37	0.37	0.55
4-6 cm	0.00	0.00	3.47	0.00	0.87	0.00	7.23	0.00	1.16	1.16	3.47	0.00	1.45	0.00	1.16	1.16	2.60
8-10 cm	0.00	0.00	1.72	0.00	0.00	0.00	2.59	0.00	0.00	0.86	5.17	0.00	3.45	0.00	3.45	0.86	3.45
12-14 cm	0.00	0.00	2.44	0.00	2.44	0.00	4.88	0.00	0.00	0.61	2.44	2.44	4.88	2.44	0.00	0.61	3.66
16-18 cm	0.00	0.00	2.44	0.00	0.00	0.00	6.10	0.00	1.22	0.00	1.22	1.22	8.54	0.00	0.00	1.22	3.66
20-22 cm	0.00	0.00	2.70	1.35	1.35	0.00	2.70	0.00	1.35	0.00	0.00	0.00	1.35	0.00	0.00	1.35	2.70
24-26 cm	1.72	0.00	3.45	0.00	3.45	1.72	15.52	0.00	6.90	0.00	0.00	1.72	1.72	0.00	0.00	0.00	1.72
28-30 cm	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
32-34 cm	0.00	0.00	7.14	7.14	0.00	0.00	21.43	0.00	0.00	0.00	7.14	0.00	7.14	0.00	0.00	0.00	0.00
36-38 cm	0.00	0.00	21.43	0.00	0.00	0.00	35.71	3.57	0.00	0.00	3.57	10.71	0.00	0.00	0.00	0.00	10.71
40-42 cm	0.00	0.00	12.37	5.15	0.00	0.00	18.56	0.00	3.09	0.00	1.03	2.06	4.12	0.00	0.00	1.03	4.12
44-46 cm	0.00	0.00	2.15	0.00	0.00	0.00	8.60	0.00	0.00	0.00	6.45	1.08	9.68	0.00	1.08	0.00	4.30
48-50 cm	0.00	0.00	11.11	0.00	0.00	0.00	18.52	0.00	0.00	0.00	5.56	0.00	7.41	0.00	0.00	0.00	7.41
52-54 cm	0.00	0.00	0.00	0.00	0.00	0.00	8.11	0.00	0.00	0.00	43.24	0.00	2.70	0.00	0.00	0.00	5.41
56-58 cm	0.00	0.00	0.00	0.00	10.00	0.00	40.00	0.00	40.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
60-62 cm	0.00	0.00	3.13	0.00	0.00	0.00	0.00	6.25	0.00	0.00	0.00	0.00	6.25	0.00	0.00	3.13	18.75
64-66 cm	0.00	0.00	8.00	2.00	1.00	0.00	14.00	0.00	3.00	1.00	2.00	0.00	3.00	0.00	0.00	0.00	4.00
68-70 cm	0.00	0.00	15.69	0.00	1.96	0.00	17.65	0.00	3.92	1.96	1.96	0.00	9.80	0.00	0.00	3.92	5.88
72-74 cm	0.00	0.00	19.18	0.00	1.37	0.00	19.18	0.00	6.85	0.00	1.37	0.00	0.00	0.00	0.00	0.00	5.48
76-78 cm	0.00	0.00	5.62	0.00	0.00	0.00	11.24	0.00	0.00	5.62	3.37	2.25	5.62	1.12	0.00	0.00	16.85
80-82 cm	0.00	0.00	4.14	0.00	0.00	0.00	5.52	0.00	0.00	1.38	0.69	1.38	0.00	1.38	0.00	0.00	9.66
84-86 cm	0.00	0.00	9.33	0.00	4.00	0.00	13.33	2.67	1.33	0.00	2.67	2.67	5.33	0.00	0.00	0.00	13.33
88-90 cm	0.00	0.00	2.19	0.00	0.00	0.00	16.06	0.00	0.00	0.00	0.00	2.92	8.03	2.19	0.00	1.46	15.33
92-94 cm	0.00	0.00	4.32	0.00	1.44	0.00	10.07	0.00	0.00	0.00	0.72	2.88	5.04	1.44	0.00	0.00	9.35
96-98 cm	3.03	0.00	1.52	0.00	1.52	0.00	13.64	0.00	1.52	0.00	0.00	1.52	7.58	1.52	0.00	3.03	1.52
100-102 cm	0.00	0.00	0.00	0.00	1.38	0.00	4.83	0.00	0.00	0.69	0.00	2.07	3.45	0.00	0.00	0.00	4.83
104-106 cm	0.00	0.67	7.38	0.00	0.67	1.34	16.11	0.67	0.00	1.34	0.00	1.34	4.70	0.67	0.00	1.34	4.70
108-110 cm	0.00	2.38	7.14	0.00	0.00	0.00	9.52	0.00	0.00	0.79	0.00	3.97	11.90	0.79	0.00	1.59	18.25
112-114 cm	2.86	0.00	8.57	0.00	0.00	0.00	17.14	0.00	2.86	0.00	2.86	0.00	0.00	0.00	0.00	0.00	11.43
116-118 cm	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	20.00
120-122 cm	0.00	0.00	3.45	0.00	3.45	0.00	6.90	0.00	0.00	0.00	0.00	3.45	6.90	10.34	0.00	0.00	3.45
124-126 cm	0.75	0.00	9.70	0.00	0.00	1.49	13.43	0.00	0.75	0.00	8.21	2.24	3.73	1.49	1.49	1.49	2.24
128-130 cm	0.00	1.43	2.57	0.00	0.86	0.00	8.57	0.00	1.14	0.86	0.86	0.00	2.86	0.29	0.00	0.29	5.71
132-134 cm	0.00	0.00	7.23	0.00	0.00	0.00	12.05	0.00	0.00	0.00	0.00	1.20	4.82	6.02	0.00	0.00	10.84
136-138 cm	0.51	0.51	7.69	0.51	1.03	1.03	6.15	0.00	0.00	1.03	0.00	1.03	0.00	2.56	1.03	2.56	4.10
140-142 cm	0.55	0.00	6.56	0.00	0.00	0.00	7.10	0.55	1.09	0.00	0.00	3.83	6.01	1.09	0.00	0.00	8.74

Table 2 (continued) Russell Bank 19B Percent Abundance of Molluscan Fauna
	Pelecypods
Depth in Core	Anomalocardia sp.	Arcopsis adamsi	Brachiodontes sp.	Chione cancellata	Cumingia tellinoidea	Laevecardium spp.	Nucula proxima	Pectinid	Pinctada radiata	Tellina spp.	Transennella spp.	Rare Pelecypods	Unidentified Pelecy. Frags.	Total number of individual specimens	Number of faunal groups	Simpsons Diversity Index
0-2 cm	0.00	0.18	70.33	0.73	0.55	0.00	0.00	0.00	12.64	0.00	0.00	0.18	0.00	517	16	0.52
4-6 cm	0.00	1.16	64.16	0.87	0.00	0.00	0.00	0.00	9.54	0.00	0.00	0.29	0.29	331	16	0.43
8-10 cm	0.00	0.00	73.28	0.86	0.00	0.00	0.00	0.00	2.59	0.00	0.00	0.00	1.72	49	12	0.55
12-14 cm	0.00	1.83	57.32	2.44	0.61	0.00	0.00	0.00	10.37	0.00	0.00	0.00	0.61	145	16	0.35
16-18 cm	0.00	0.00	57.32	3.66	1.22	0.00	0.00	0.00	2.44	0.00	7.32	0.00	2.44	62	14	0.35
20-22 cm	0.00	0.00	77.03	0.00	0.00	0.00	0.00	0.00	0.00	0.00	2.70	0.00	5.41	62	11	0.60
24-26 cm	0.00	0.00	24.14	3.45	0.00	1.72	0.00	0.00	1.72	1.72	17.24	0.00	12.07	50	16	0.14
28-30 cm	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	50.00	0.00	50.00	2	2	0.50
32-34 cm	0.00	0.00	14.29	14.29	0.00	0.00	0.00	0.00	0.00	0.00	21.43	0.00	0.00	12	8	0.15
36-38 cm	0.00	0.00	14.29	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	28	7	0.22
40-42 cm	0.00	1.03	41.24	3.09	0.00	0.00	0.00	1.03	2.06	0.00	0.00	0.00	0.00	97	14	0.23
44-46 cm	0.00	4.30	9.68	46.24	1.08	0.00	0.00	0.00	0.00	1.08	0.00	0.00	4.30	93	13	0.25
48-50 cm	0.00	9.26	9.26	3.70	9.26	0.00	0.00	1.85	9.26	3.70	0.00	0.00	3.70	54	13	0.10
52-54 cm	0.00	0.00	27.03	0.00	2.70	0.00	0.00	0.00	8.11	0.00	0.00	0.00	2.70	37	8	0.28
56-58 cm	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	10.00	10	4	0.34
60-62 cm	0.00	0.00	50.00	0.00	0.00	3.13	0.00	0.00	3.13	0.00	0.00	0.00	6.25	32	9	0.30
64-66 cm	0.00	0.00	29.00	1.00	0.00	1.00	0.00	10.00	9.00	2.00	3.00	1.00	6.00	100	18	0.14
68-70 cm	0.00	0.00	5.88	5.88	1.96	0.00	0.00	1.96	0.00	0.00	9.80	0.00	11.76	51	15	0.10
72-74 cm	0.00	0.00	19.18	5.48	0.00	0.00	2.74	0.00	0.00	0.00	19.18	0.00	0.00	73	10	0.16
76-78 cm	0.00	1.12	19.10	0.00	0.00	0.00	0.00	0.00	3.37	0.00	7.87	0.00	16.85	89	13	0.12
80-82 cm	0.00	2.07	26.90	8.97	0.00	0.00	0.00	0.00	1.38	0.00	24.14	3.45	8.97	145	14	0.16
84-86 cm	0.00	0.00	8.00	9.33	0.00	0.00	0.00	0.00	2.67	0.00	12.00	0.00	13.33	75	14	0.10
88-90 cm	4.38	0.00	4.38	6.57	0.73	0.00	0.00	0.00	0.00	0.73	28.47	0.00	6.57	137	14	0.15
92-94 cm	2.16	2.88	7.19	6.47	0.00	0.72	0.00	0.00	5.04	0.00	27.34	0.00	12.95	139	16	0.13
96-98 cm	1.52	0.00	6.06	4.55	0.00	1.52	0.00	0.00	0.00	0.00	45.45	0.00	4.55	66	16	0.24
100-102 cm	0.00	0.00	12.41	4.83	0.00	0.00	0.00	0.00	0.00	0.00	48.97	0.00	16.55	145	10	0.29
104-106 cm	6.71	0.00	0.67	1.34	0.00	0.00	0.00	0.00	0.67	0.00	36.24	0.00	13.42	149	18	0.19
108-110 cm	0.00	0.00	7.14	2.38	0.00	0.79	1.59	0.00	1.59	0.00	23.02	0.00	7.14	126	16	0.13
112-114 cm	0.00	0.00	0.00	5.71	0.00	0.00	0.00	0.00	0.00	0.00	37.14	0.00	11.43	35	9	0.21
116-118 cm	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00	60.00	0.00	20.00	5	3	0.44
120-122 cm	0.00	0.00	27.59	0.00	0.00	0.00	0.00	0.00	0.00	0.00	20.69	0.00	13.79	29	10	0.16
124-126 cm	3.73	0.00	8.21	6.72	0.75	0.75	0.00	0.00	2.24	0.00	24.63	0.00	5.97	134	20	0.12
128-130 cm	0.00	0.29	8.57	3.14	0.57	0.00	0.00	0.00	2.00	0.00	54.29	0.29	5.43	350	19	0.32
132-134 cm	0.00	0.00	6.02	9.64	2.41	0.00	1.20	0.00	2.41	0.00	20.48	0.00	15.66	83	13	0.12
136-138 cm	0.00	1.03	9.23	9.23	0.00	2.56	2.05	0.00	3.08	1.03	31.79	0.00	10.26	195	22	0.14
140-142 cm	0.00	1.09	19.67	6.56	1.09	0.00	0.55	0.00	2.73	0.00	31.15	0.00	1.64	183	17	0.16

Back to OFR 97-460