Environmental Engineering Reference
In-Depth Information
Table 5.6
(continued)
S. no.
Species
Pond 1 (0.5 ppm)
Pond 2 (1.5 ppm)
Pond 3 (2.5 ppm)
133
Closterium
sp.
898.9
1416.44
1284.55
134
Striatella sp.
2961.2
3640.44
3239.39
135
Striatella unipunctata
3460.22
4988.44
3966.8
136
Diplosalis sp.
809.16
949.44
813.66
137
Licmophora ehrenbergii
541.88
709.44
608.8
Figures in bracket indicate the applied doses of ferrous sulphate in the pond water
3. Ecological perturbations will be negligible in
aquaculture ponds because unlike open
oceans, the species richness is not too high in
this closed system. Only the target species is
cultured in the pond, and essentially, the food
chain consists of phytoplankton, zooplankton
and target (cultured) species.
4. The aquaculture ponds are closed systems
with depth ranging from 1 to 5 m. The sub-
stratum is basically soil. The question of
m
3
) in dino
Table 5.7
Mean cell volume (
ยต
fl
agellates in the selected ponds
S. no.
Species
Pond 1 (0.5 ppm)
Pond 2 (1.5 ppm)
Pond 3 (2.5 ppm)
1
Prorocentrum gracile
856.39
954.22
901.08
2
Prorocentrum micans
1024.85
1391.66
1154.45
3
Prorocentrum concavum
1381.43
1600.39
1417.55
4
Ceratium furca
1185.29
1666.54
1498.5
5
Ceratium fusus
1084.91
1346.75
1111.09
6
Ceratium teres
946.55
1294.16
1088.57
7
Ceratium minutum
549.76
609.22
585.4
8
Ceratium tripos (Ceratium tripos)
1876.44
2085.15
1972.09
9
Ceratium trichoceros
498.54
606.98
514.11
10
Ceratium horridum
1029.97
1413.29
1208.75
11
Ceratium inflatum
986.79
1152.47
1066.48
12
Ceratocorys horrida
459.66
782.21
695.45
13
Protoperidinium sp.
1387.66
1941.08
1694.25
14
Protoperidinium crassipes
2025.55
2411.6
2282.29
15
Protoperidinium depressum
1376.49
1718.62
1455.48
16
Protoperidinium ovatum
822.17
1049.62
954.45
17
Protoperidinium pellucidum
765.2
840.13
798.29
18
Protoperidinium conicum
2011.17
2642.54
2388.39
19
Pyrocystis fusiformis
985.77
2146.32
1911
20
Pyrocystis sp.
356.25
458.59
391.77
21
Dinophysis caudata
6154.05
6289.39
6199.1
22
Dinophysis acuta
2404.13
2817.19
2643.45
23
Dinophysis norvegica
1698.49
1934.6
1855.11
24
Dinophysis
sp.
1317.44
1788.2
1513.55
25
Alexandrium sp.
6928.38
9144.72
7000.15
26
Preperidinium meunieri
11141.62
13984.44
12199.05
Figures in bracket indicate the applied doses of ferrous sulphate in the pond water
