Table 2 Calculation cases with the same opening mode under different discharges.

From: Optimization of the flow conditions in the spawning ground of the Chinese sturgeon (Acipenser sinensis) through Gezhouba Dam generating units

Case no

Discharge (m3/s)

Opening mode of units

Discharge of each unit (m3/s)

Proportion of suitable area (%)

1

5590

Open 14 units, #8–21

243.2

95.1

2

6000

Open 14 units, #8–21

252

95.5

3

7000

Open 14 units, #8–21

294

97.1

4

8000

Open 14 units, #8–21

336

98.0

5

9000

Open 14 units, #8–21

378

97.4

6

10,000

Open 14 units, #8–21

420

94.6

7

11,000

Open 14 units, #8–21

462

96.1

8

12,000

Open 14 units, #8–21

504

70.7

9

13,000

Open 14 units, #8–21

546

66.9

10

14,000

Open 14 units, #8–21

588

65.2

11

15,000

Open 14 units, #8–21

630

54.6

11

16,000

Open 14 units, #8–21

672

40.7

12

17,000

Open 14 units, #8–21

714

26.3

13

17,930

Open 14 units, #8–21

753

20.2

14

 > 17,930

Open 14 units, #8–21

825

6.0