Spatiotemporal variations of zooplankton community in a shallow tropical brackish lagoon (Sontecomapan, Veracruz, Mexico)

Marcela I Benítez-Díaz Mirón; María E Castellanos-Páez; Gabriela Garza-Mouriño; María J Ferrara-Guerrero; Marc Pagano

doi:10.1186/s40555-014-0059-6

Zoological Studies

Table 4 Equation parameters of the multiple linear regression models

From: Spatiotemporal variations of zooplankton community in a shallow tropical brackish lagoon (Sontecomapan, Veracruz, Mexico)

	Grouped data (n = 30)		Dry season survey (n = 10)		Rainy season survey (n = 10)		Norte season survey (n = 10)
	Beta	p	Beta	p	Beta	p	Beta	p
Number of taxa	R ² = 0.62; p = 0.0002		R ² = 0.21, p = 0.180		R ² = 0.12; p = 0.267		R ² = 0.19; p = 0.196
Intercept	225.30 ± 66.40	0.003	55.09 ± 91.50	0.566	143.41 ± 119.32	0.269	59.93 ± 0.83	0.434
Chlorophyll b	22.54 ± 5.26	0.000	22.09 ± 12.70	0.126	13.68 ± 8.95	0.170	11.02 ± 10.36	0.323
pH	−166.17 ± 45.60	0.002	−51.98 ± 98.05	0.612	−146.16 ± 130.97	0.301	−46.33 ± 60.83	0.471
Diversity	R ² = 0.44; p = 0.0025		R ² = 0.41; p = 0.180		R ² = 0.00; p = 0.72		R ² = 0.06; p = 0.245
Intercept	6.07 ± 2.46	0.022	−0.65 ± 0.46	0.194	0.44 ± 0.27	0.146	−0.43 ± 0.63	0.507
Transparency	0.39 ± 0.13	0.005	0.59 ± 0.25	0.046	0.06 ± 0.15	0.710	0.48 ± 0.38	0.245
Zooplankton	R ² = 0.40; p = 0.011		R ² = 0.16; p = 0.291		R ² = 0.54; p = 0.055		R ² = 0.76; p = 0.026
Intercept	5.88 ± 13.63	0.671	12.39 ± 3.97	0.021	4.94 ± 1.13	0.005	11.60 ± 3.10	0.010
Transparency	−3.23 ± 0.74	0.000	−3.10 ± 1.74	0.125	−0.63 ± 0.70	0.402	−5.32 ± 1.64	0.017
Chlorophyll b	−3.22 ± 1.11	0.009	−3.82 ± 2.67	0.203	−3.82 ± 1.12	0.015	−0.68 ± 2.48	0.793
Salinity	1.45 ± 0.60	0.024	−1.11 ± 1.47	0.476	1.45 ± 1.27	0.296	0.79 ± 0.77	0.344
Copepods	R ² = 0.39; p = 0.012		R ² = 0.20; p = 0.255		R ² = 0.74; p = 0.010		R ² = 0.63; p = 0.029
Intercept	17.93 ± 7.62	0.028	9.85 ± 3.49	0.030	5.33 ± 0.97	0.002	13.12 ± 3.30	0.007
Transparency	−3.27 ± 0.78	0.000	−3.15 ± 1.73	0.118	−0.79 ± 0.61	0.242	−5.53 ± 1.73	0.019
Chlorophyll b	−3.97 ± 1.20	0.003	-3.81 ± 2.42	0.166	-4.78 ± 0.95	0.002	-7.50 ± 6.97	0.323
Chlorophyll a	3.03 ± 1.09	0.012	3.14 ± 3.55	0.411	2.26 ± 0.89	0.044	6.06 ± 6.42	0.382
Nauplii	R ² = 0.38; p = 0.015		R ² = 0.21; p = 0.249		R ² = 0.66; p = 0.022		R ² = 0.75; p = 0.031
Intercept	15.03 ± 7.89	0.071	8.61 ± 3.60	0.054	4.05 ± 1.15	0.013	11.55 ± 3.39	0.014
Transparency	−3.39 ± 0.81	0.000	−3.39 ± 1.78	0.106	−1.00 ± 0.72	0.216	−5.55 ± 1.78	0.020
Chlorophyll b	−3.96 ± 1.24	0.004	−3.77 ± 2.50	0.181	−4.70 ± 1.12	0.006	6.59 ± 6.60	0.357
Chlorophyll a	2.87 ± 1.13	0.019	3.10 ± 3.67	0.430	2.12 ± 1.05	0.091	−8.00 ± 7.17	0.307
Acartia tonsa	R ² = 0.52; p = 0.001		R ² = 0.00; p = 0.577		R ² = 0.10; p = 0.445		R ² = 0.00; p = 0.831
Intercept	14.27 ± 5.38	0.015	47.35 ± 47.53	0.376	−4.06 ± 20.21	0.851	−1.96 ± 5.87	0.755
Salinity	1.72 ± 0.44	0.001	−4.42 ± 3.69	0.296	−1.68 ± 2.08	0.465	0.23 ± 0.42	0.610
Chlorophyll a	2.23 ± 0.72	0.005	−3.97 ± 2.92	0.245	2.78 ± 1.54	0.145	0.23 ± 2.39	0.929
Chlorophyll b	−2.16 ± 0.77	0.011	1.97 ± 5.37	0.732	−1.53 ± 1.21	0.276	0.57 ± 2.62	0.840
pH	−14.00 ± 5.57	0.020	−44.55 ± 44.90	0.377	6.42 ± 23.21	0.796	1.98 ± 5.96	0.757
Transparency	−1.22 ± 0.52	0.028	2.46 ± 2.13	0.312	−0.60 ± 0.81	0.500	−0.14 ± 0.67	0.847
Marine Rotifers	R ² = 0.30; p = 0.033		R ² = 0.22; p = 0.170		R ² = 0.56; p = 0.022		R ² = 0.00; p = 0.528
Intercept	−31.44 ± 17.10	0.080	−90.35 ± 58.55	0.167	81.78 ± 22.95	0.009	−24.28 ± 26.44	0.389
Salinity	2.04 ± 0.79	0.017	3.90 ± 2.35	0.140	2.76 ± 1.56	0.120	16.65 ± 18.37	0.395
Temperature	25.31 ± 12.19	0.050	61.63 ± 41.21	0.178	−57.75 ± 16.62	0.010	1.22 ± 1.10	0.303
Feshw. rotifers	R ² = 0.50; p = 0.003		R ² = 0.69; p = 0.018		R ² = 0.00; p = 0.726		R ² = 0.76; p = 0.008
Intercept	50.94 ± 15.57	0.004	53.31 ± 30.04	0.126	22.52 ± 22.41	0.354	10.25 ± 8.45	0.270
Chlorophyll b	4.39 ± 1.23	0.002	3.17 ± 3.29	0.372	1.04 ± 3.43	0.772	5.06 ± 1.44	0.013
pH	−30.40 ± 11.39	0.015	−54.96 ± 31.01	0.127	−24.07 ± 24.62	0.366	−11.59 ± 8.67	0.230
Chlorophyll c	−1.79 ± 0.79	0.036	−3.18 ± 1.40	0.064	0.11 ± 3.36	0.974	1.21 ± 3.73	0.757

Equation parameters of the multiple linear regression models using forward stepwise method explaining the variations of the main zooplankton parameters. Significant p values (p < 0.05) are in bold characters.

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