Table 1 ANOVA results with system as main factor and day as repeated measure.

From: The impact of rearing environment on the development of gut microbiota in tilapia larvae

Parameter

System

Day

Syst*Day

RAS

AS

7

42

7

42

7

42

RAS

AS

RAS

AS

TAN (mg L−1)

0.03

0.05

0.06

0.04

0.03

0.06

0.05

0.04

0.047

NO2 (mg L−1)

0.03

0.11

0.04

0.10

0.303

NO3 (mg L−1)

12.4

54.3

4.5

28.2

12.4

4.5

54.3

28.2

0.000

PO4 (mg L−1)

1.46

1.04

0.37

2.13

0.098

CO2 (mg L−1)

59.1

9.4

72.9

39.0

59.1

72.9

9.4

39.0

0.003

Urea (mg L−1)

0.02

0.07

0.03

0.06

0.465

T (oC)

27.3

27.5

27.2

27.6

0.884

pH

8.06

7.28

8.15

8.10

8.06

8.15

7.28

8.10

0.002

DO (mg L−1)

7.72

8.00

8.18

7.55

0.150

Cond (μS cm−1)

402

820

260

456

402

260

820

456

0.002

  1. Average water quality parameters calculated for recirculating aquaculture system (RAS) or active suspension (AS) and for day 7 and 42 (n = 4) are given. The right column gives the “System * Day” interaction P values (bold for P < 0.05). Within system or day, bold values indicate significant difference (P < 0.05). TAN: Total ammonia nitrogen; NO2-N: Nitrite nitrogen; NO3-N: Nitrate nitrogen; PO43-P: Phosphate phosphorous; CO2: Carbon dioxide; T: Temperature; DO: Dissolved oxygen; Cond.: Conductivity.