Physicochemical Process, Crustacean, and Microcystis Biomass Changes In Situ Enclosure after Introduction of Silver Carp at Meiliang Bay, Lake Taihu

Table 2

N : P ratio values and comparison between CG and treatments for each treatment. Results of TN : TP ratio are performed as mean ± STDEV; means with asterisk “” stand for significant difference (-test).

Group	TN : TP ratio values	Test for equality of variances		-test for equality of means
			Sig.		df	Sig.
CG	12.43 ± 6.57	Compared with CG
LDG	14.70 ± 7.58	0.670	0.418	−1.095	45	0.279
MDG	17.72 ± 9.3	2.230	0.134	−2.271	46	0.028
HDG	13.87 ± 7.71	1.908	1.908	−0.693	46	0.492