Organic matter reduction using four densities of seaweed (Gracilaria verucosa) and green mussel (Perna viridis) to improve water quality for aquaculture in Java, Indonesia

Special Issue - Ecological intensification: A new paragon for sustainable aquaculture

Free Access

Table 1

Results of the two-way ANOVA testing the influence of days, density, and the interaction on TOM, TAN, NO₂, NO₃, and SGR of G. verucosa and P. viridis.

Dependent variables	Source of variation	Seaweed tanks				Green mussel tanks

		df	MS	F	Sig.	df	MS	F	Sig.
TOM	Days	4	145	12.4	0.00*	4	9574	3.6	0.01^*
	Density	4	1391	117.9	0.00^*	4	29843	11.2	0.00^*
	Days × density	16	221	18.7	0.00^*	16	5653	2.1	0.01^*
TAN	Days	4	0.011	197	0.00^*	4	0.006	650.5	0.00^*
	Density	4	0.17	298	0.00^*	4	0.33	3897.6	0.00^*
	days × density	16	0.001	28	0.00^*	16	0.002	257.5	0.00^*
NO₂	Days	4	8.15E-7	1.0	0.40	4	0.06	650.5	0.00^*
	Density	4	5.76E-5	72.4	0.00^*	4	0.33	3897.6	0.00^*
	days × density	16	7.82E-6	9.8	0.00^*	16	0.002	257.5	0.00^*
NO₃	Days	4	0.27	128.74	0.00^*	4	0.77	471.33	0.00^*
	Density	4	1.22	582.39	0.00^*	4	0.36	217.75	0.00^*
	days × density	16	0.19	91.86	0.00^*	16	0.10	64.28	0.00^*
SGR	Density	3	0.73	10.45	0.001^*	3	0.02	2.45	0.6

Legend: df = degrees of freedom; MS = mean of the sum of squares; F = F-value.

Significant differences are denoted by *p < 0.01.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.