Table 2. Trophic indexes of plankton in Maloe More Strait
1100 Nina A. Bondarenko et al. / Acta Biologica Sibirica 11: 1091–1107 (2025)
Parameters |
Andronikova 1996 |
Authors' data |
|||||||||||
Mukhor Bay |
Pelagic zone |
||||||||||||
oligotrophic state |
mesotrophic state |
eutrophic state |
10.06 |
11.07 |
31.07 |
28.08 |
1.10 |
10.06 |
11.07 |
31.07 |
28.08 |
1.10 |
|
R:Cl:Cop (% Ntot) |
32:38:58 |
30:47:43 |
46:52:35 |
2:8:92 |
1:57:42 |
0:43:57 |
2:83:15 |
16:20:64 |
1:0:99 |
0:06:100 |
1:1:98 |
2:36:62 |
27:3:70 |
R:Cl:Cop (% Вtot) |
7:26:45 |
8:32:40 |
13:48:27 |
3:24:73 |
1:82:17 |
0:77:23 |
1:96:3 |
9:62: 29 |
1:0:99 |
0:0:100 |
1: 1:98 |
1:79:20 |
1:1:98 |
w |
0.025±0.1 |
0.0178±0.007 |
0.0155±0.0047 |
0.01 |
0.03 |
0.03 |
0.068 |
0.02 |
0.02 |
0.01 |
0.01 |
0.03 |
0 |
Nclad/Ncop |
0.57 |
0.9 |
2.0 |
0.1 |
0.8 |
0.76 |
5.37 |
0.35 |
0 |
0 |
0.008 |
0.53 |
0.04 |
Bcyc/Bcal |
0.1-0.4 |
0.5-0.8 |
0.9-1.1 |
29 |
2.86 |
1.8 |
0.31 |
5 |
0.006 |
93 |
34 |
7.5 |
0.17 |
B cr/Brot |
27 |
- |
82 |
25 |
1655 |
666 |
16 |
9 |
4740 |
32 |
125 |
235 |
11 |
B3/B2 (%) |
38% |
- |
20% |
11 |
26 |
21 |
1 |
22 |
0.6 |
1 |
30 |
22 |
15 |
Вz/Bph |
4.32±1.2 |
0.78±0.14 |
0.42±0.07 |
0.96 |
2.94 |
8 |
15 |
1.47 |
1.06 |
0.2 |
0.45 |
0.76 |
0.29 |
E |
<0.2 |
0.2-1.0 |
1.0-4.0 |
0.4 |
0.2 |
0.4 |
0.3 |
2.3 |
1 |
0 |
2.0 |
0.2 |
1.5 |
Shannon index, H (В) |
2.6-4.0 |
2.1-2.5 |
1.0-2.0 |
0.96 |
0.8 |
1.12 |
0.22 |
1.1 |
2.28 |
0.69 |
0.28 |
0.84 |
0.87 |
N |
1x105 |
3x105 |
8x105 |
15.6 |
43.34 |
40.86 |
53.3 |
8.3 |
11.2 |
2.1 |
1.16 |
4.25 |
2.9 |
B |
<0.5-1.0 |
1.0-4.0 |
4.0-16 |
0.220 |
1.540 |
1.660 |
3.70 |
0.164 |
0.240 |
0.033 |
0.02 |
0.160 |
0.050 |
Note: R:CL:Cop is the ratio of the main taxonomic group and their contribution (% Ntot); R:Cl:Cop is the same for their contribution (% Btot); w – average individual weight of a specimen in the community; Nclad/Ncop is the ratio of the density cladocerans and copepods; Bcyc/Bcal is the ratio of the biomass of cyclopoid and calanoid copepod; Bcr/Brot is the same for crustaceans and rotifera; B3/B2 is the same for predator/filtrater feeders; Bz/Bph is the same for zooplankton and phytoplankton; E – trophic coefficient; H (B) – the species diversity according to Shannon’s index by the biomass; N – total density (thous. ind/m3); B – total biomass, g/m3.