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Table 1 Comparison of environmental parameters (mean ± sd, n= 3) at the two setups

From: Effects of grazing by herbivorous gastropod (Trochus niloticus) on the survivorship of cultured coral spat

Parameter

Hatchery

In situ nursery

F

p value

Sediment accumulation rate (g m-2 day-1)

4.4 ± 2.0

104.8 ± 53.8

10.43

0.032

Water motion (diffusion index)

0.92 ± 0.14

1.88 ± 0.08

105.40

0.001

Light attenuation (%)

66.6 ± 0.8

87.9 ± 0.6

1,215.62

<0.001

Salinity (‰)

34 ± 0

34 ± 0

0

1.0