Assessment of Longitudinal Gradients in Nematode Communities in the Deep Northern Gulf of Mexico and Concordance with Benthic Taxa

Table 4

SIMPER (Similarity Percentages) analysis of 20 most common nematode genera at GOM eastern and western transects.

	Groups West and East		Average dissimilarity = 68.83
Genera	Group West; Av.Abund	Group East; Av.Abund	Contribution%
Sabatieria	48	81.78	19.56
Monhystera	0.29	25	7.23
Halalaimus	12.57	20.89	4.2
Oxystomina	14.86	7.44	3.28
Microlaimus	7.57	14.89	3.2
Cervonema	7.43	11.22	2.65
Sphaerolaimus	3.57	13.22	2.63
Spirinia	0	7.33	2.41
Amphimonhystera	9.43	10.56	2.38
Leptolaimus	7	7.33	2.29
Prochromadorella	0	8.44	2.16
Cyatholaimus	0	8.78	2.14
Daptonema	5.14	10	2.12
Scaptrella	1.14	7.67	2.04
Linhomoeus	3	6.56	2.01
Desmoscolex	5	9.56	1.79
Ceramonema	3.57	7.22	1.67
Theristus	1.57	6.89	1.64
Metasphaerolaimus	6.71	1.78	1.63
Elzalia	4.86	5.44	1.59