Diversity of Fish Species in relation to Climatological Fluctuations in a Coastal River of Bangladesh

Table 2

The species status of the Sandha river of Bangladesh using different diversity indexes.

	No. of species	Shannon	Dominance	Simpson	Margalef	Evenness
Stations
Station 1	62	3.727	0.031	0.969	8.694	0.670
Station 2	67	3.866	0.026	0.974	9.608	0.712
Station 3	66	3.845	0.027	0.973	9.375	0.709
Station 4	66	3.817	0.027	0.973	9.326	0.689
Station 5	65	3.756	0.031	0.969	9.333	0.658
Months
July	66	3.859	0.027	0.973	10.450	0.719
August	64	3.776	0.028	0.972	10.250	0.682
September	62	3.763	0.031	0.969	9.989	0.695
October	57	3.722	0.029	0.971	9.257	0.726
November	58	3.748	0.028	0.972	9.467	0.731
December	54	3.685	0.031	0.969	9.026	0.738
January	60	3.803	0.027	0.973	9.955	0.747
February	59	3.728	0.030	0.970	9.693	0.705
March	54	3.770	0.027	0.973	8.895	0.803
April	58	3.716	0.031	0.969	9.452	0.709
May	57	3.690	0.032	0.968	9.301	0.703
June	64	3.770	0.031	0.969	10.070	0.678

Note: Shannon: Shannon-Wiener diversity index; Dominance: Simpson’s dominance index; Simpson: Simpson’s diversity index; Margalef: Margalef’s richness index; Evenness: Buzas and Gibson’s evenness index.