Experimental evaluation of influence of FADs on community structure and fisheries in coastal Kenya

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Table 3

Mean value and coefficient of variation (CV) of the diversity indices. Welch's t-test values shown for species diversity indices between the two sampling zones A and B in coastal Kenya. Indices descriptors are shown in Table 1. Significant values (p < 0.05) are marked by an asterisk.

Diversity indices	Indices codes	All zones		Zone A		Zone B		FADs

		Mean	CV	t	p	t	p	t	p
Species diversity	S	106.67	1.97	0.17	0.87	0.21	0.84	0.04	0.84
Margalef	D_mg	–0.15	1.99	3.44	0.01*	3.13	0.01*	0.76	0.26
Heip	E_heip	0.42	1.97	0.01	0.03*	1.07	0.29	3.06	0.01*
Berger parker	1/d	10.59	1.97	57.47	0^**	0.78	0.44	63.19	0.01**
Shannon-Weiner	H′	3.75	1.97	3.89	0.01*	7.04	0.01*	2.25	0.02
Simpson diversity	1-D	0.05	1.99	3.12	0.01*	0.41	0.69	6.11	0.01*
Taxonomic diversity	Δ	0.26	1.99	1.17	0.25	9.94	0.01*	50.71	0.01*
Taxonomic distinctness	Δ^*	0.43	1.99	2.32	0.03*	16.51	0.01*	52.54	0.01*
Average taxonomic distinctness	Δ⁺	0.82	1.97	0.11	0.92	0.52	0.61	1.16	0.12
Variation in taxonomic distinctness	⋀⁺	0.41	1.97	1.52	0.14	0.27	0.8	3.12	0.01*

(p < 0.05);

^**

(p < 0.01)

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