Table 2. The comparison of TChl a biomass and the contribution of major phytoplankton groups to the TChl a biomass among the three blocks.

Comparison means	Parameters	IN	EDGE	OUT	IN/OUT	EDGE/OUT
Water column integration [mg m-2]	TChl a	20.981±3.710	21.218±5.856	21.644±5.389	1	1
	Dinoflagellates	0.327±0.082	0.272±0.132	0.313±0.111	1	0.9
	Diatoms	2.402±1.673***	0.703±0.519	0.113±0.185	21.3	6.2
	Haptophytes_8	7.168±1.805	8.399±3.925	9.591±2.846	0.7	0.9
	Haptophytes_6	1.008±0.490	0.928±0.478	1.311±0.329	0.8	0.7
	Prochlorococcus	0.988±0.408***	2.838±1.920**	5.285±0.914	0.2	0.5
	Synechococcus	5.422±1.142*	3.722±1.803	3.388±0.751	1.6	1.1
	Prasinophytes	1.982±0.565	2.240±1.246	1.211±0.684	1.6	1.8
DCML [mg m-3]	TChl a	0.522±0.153	0.445±0.143	0.458±0.143	1.1	1
	Dinoflagellates	0.009±0.004*	0.006±0.002	0.005±0.002	1.8	1.2
	Diatoms	0.051±0.074*	0.010±0.009	0.002±0.003	25.5	5
	Haptophytes_8	0.115±0.066*	0.199±0.090	0.242±0.081	0.5	0.8
	Haptophytes_6	0.027±0.017	0.019±0.013	0.032±0.015	0.8	0.6
	Prochlorococcus	0.018±0.015**	0.049±0.045*	0.103±0.031	0.2	0.5
	Synechococcus	0.184±0.047***	0.057±0.054	0.026±0.017	7.1	2.2
	Prasinophytes	0.066±0.032	0.095±0.062	0.040±0.027	1.7	2.4
Depth @ 5 m [mg m-3]	TChl a	0.211±0.050***	0.121±0.030	0.082±0.021	2.6	1.5
	Dinoflagellates	0.006±0.003***	0.002±0.001	0.002±0.001	3	1
	Diatoms	<0.001	<0.001	<0.001	\	\
	Haptophytes_8	0.022±0.010*	0.014±0.010	0.008±0.003	2.8	1.8
	Haptophytes_6	0.013±0.006**	0.007±0.004	0.003±0.001	4.3	2.3
	Prochlorococcus	0.014±0.007**	0.010±0.004	0.005±0.004	2.8	2
	Synechococcus	0.144±0.035***	0.082±0.022	0.064±0.015	2.3	1.3
	Prasinophytes	0.003±0.003	0.003±0.008	<0.001	\	\

Three comparing means, including the water column integration, the DCML and the surface layer (at 5 m) were introduced. The OUT group was treated as the control in the multiple comparison using one-way ANOVA.

* implied significant difference in the level of p<0.050

** for p<0.010

*** for p<0.001.

The IN/OUT and EDGE/OUT implied the multiple or fraction of IN and EDGE compared to OUT.