Influence of environmental factors on vertical distribution of zooplankton communities in humic lakes

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Table 2

Average value of selected hydrochemical parameters and water transparency in the water column studied humic lakes. Abbreviations: E − epilimnion; M − metalimnion; H − hypolimnion; EC − electrical conductivity; TOC − total organic carbon; DOC − dissolved organic carbon; POC − particulate organic carbon; IC − inorganic carbon; TN − total nitrogen; DN − dissolved nitrogen.

		Transpa-rency %	EC μs·cm⁻¹	Fe^2+/3+ mg·L⁻¹	SiO₄⁴⁻ mg·L⁻¹	TOC mg·L⁻¹	DOC mg·L⁻¹	POC mg·L⁻¹	IC mg·L⁻¹	TN mg·L⁻¹	DN mg·L⁻¹
Wądołek	E^*	82.11	18.6	0.21	0.07	14.69	13.79	0.9	3.29	2.2	1.6
	M	67.23	32.2	0.32	0.3	14.59	13.98	0.6	4.48	1.8	1.46
	H	80.26	40.7	0.53	0.46	15.22	14.38	0.83	4.57	3.26	2.64

Suchar Wielki	E	86.11	16.7	0.28	0.11	6.58	6.2	0.38	4.18	0.76	0.7
	M	85.16	19.4	0.1	0.13	6.55	6.02	0.53	4.74	0.9	0.72
	H	67.56	21.3	0.17	0.17	6.19	5.6	0.59	3.33	0.9	0.66

Suchar II	E	80.45	15	0.24	0.13	7.79	7.45	0.34	3.25	1.32	1.1
	M	77.02	17.8	0.17	0.15	8.03	7.37	0.66	3.17	1.26	0.92
	H	84.3	29.2	0.31	0.56	8.46	7.86	0.6	3.79	2.84	2.44

Dembowski	E	86.49	12	0.13	0.12	7.53	7.07	0.46	3.33	1.14	0.9
	M	86.05	12.8	0.26	0.07	6.33	5.98	0.35	3.42	1.2	0.92
	H	72.17	20.3	0.23	0.11	6.37	5.44	0.93	4.04	2.52	1.58

Widne	E	85.4	38.3	0.43	0.11	11.95	10.71	1.24	6.67	1.66	1.32
Widne	M	76.99	49.4	0.13	0.13	11.06	10.33	0.73	6.59	1.74	1.32

Lake Wądołek had no typical epilimnion zone; the values of parameters from 0.5 m.

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