Impact of continuous low water stage on the breeding environment of Oncomelania hupensis: a case study of Poyang Lake area in China

Table 3 Daily water level changes at Hukou station in the northern part of Poyang Lake from September to November during 1993–2016

Year	Monthly mean water level			Water level (9 m)					Water level (11 m)
	Monthly mean water level			September		October		November	September			October		November
	September	October	November	Falling date	Falling days	Falling date	Falling days	Falling date	Falling days	Falling date	Falling days	Falling date	Falling days	Falling date	Falling days
1993	16.96	13.66	11.27	–	0	–	0	–	0	–	0	–	0	18	7
1994	12.47	12.62	9.38	–	0	–	0	13	18	–	0	–	0	7	24
1995	13.07	11.85	9.04	–	0	–	0	13	18	–	0	–	0	5	26
1996	14.72	11.58	10.36	–	0	–	0	4	5	–	0	24	8		19
1997	11.70	11.18	8.55	–	0	–	0	7	22	20	11		10		30
1998	18.38	13.79	8.84	–	0	–	0	14	17	–	0	–	0	3	28
1999	17.33	13.56	10.83	–	0	–	0	–	0	–	0	–	0	15	16
2000	14.59	13.74	12.25	–	0	–	0	–	0	–	0	–	0	23	8
2001	13.19	11.78	9.62	–	0	–	0	23	8	–	0	23	9		30
2002	14.94	10.31	10.57	–	0	–	0	–	0	–	0	6	26		22
2003	14.13	12.37	7.63	–	0	–	0	3	28	–	0	27	5		30
2004	13.88	11.29	8.42	–	0	–	0	2	29	–	0	20	11		30
2005	15.42	12.20	10.14	–	0	–	0	30	1	–	0	28	4		30
2006	8.54	7.19	6.86	1	22		31		30	1	30		31		30
2007	14.32	10.40	7.03	–	0	23	9		30	–	0	13	19		30
2008	15.00	10.81	11.59	–	0	26	6		5	–	0	16	16		8
2009	12.42	7.77	6.68	–	0	7	25		30	26	5		31		30
2010	14.77	11.96	8.08	–	0	–	0	10	21	–	0	26	6		30
2011	9.67	8.74	8.40	9	10	11	21		21	1	25		30		30
2012	13.74	10.89	9.31	–	0	–	0	1	13	–	0	12	20		30
2013	10.27	8.95	6.36	–	0	16	16		30	5	25	10	22		30
2014	14.47	11.50	9.62	–	0	26	6	22	9	–	0	19	13		28
2015	11.63	10.62	10.47	–	0	28	4		6	–	0	17	15		17
2016	10.42	8.12	9.14	23	8		31		30	11	20		31		30

ISSN: 2049-9957