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Dukanu ezers
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lake
12
islands
5
|
number of islands |
3 number
Source: SMPI Date: 01-01-1973 |
|
total area of islands |
0.700 hectare
Source: SMPI Date: 01-01-1973 |
|
area of island |
0.400 hectare
Source: SMPI Date: 01-01-1973 |
|
area of island |
0.200 hectare
Source: SMPI Date: 01-01-1973 |
|
area of island |
0.100 hectare
Source: SMPI Date: 01-01-1973 |
lake bottom
2
|
bottom structure |
large stones
Source: "Latvijas ezeri" Location: in places Date: 28-07-2004 |
|
bottom structure |
mud
Source: SMPI Date: 01-01-1973 |
lakeshore
4
surroundings
1
catchment area
3
|
hydrological regime |
flow-through
Source: LEA |
|
catchment region |
68 (basin of the Velikaya River)
Source: LEA Date: 09-01-1998 |
|
count of discharged stream |
1 number
Source: LEA |
recreation
2
chemistry
2
|
colour of water |
oligohumic
Source: Nature Census Project Date: 29-07-2021 |
|
colour of water |
greenish
Source: Nature Census Project Date: 06-06-2019 |
macrophytes
1
fish
8
|
fish of natural occurrence |
ide
Source: SMPI Location: lake Date: 01-01-1973 |
|
fish of natural occurrence |
roach
Source: SMPI Location: lake Date: 01-01-1973 |
|
fish of natural occurrence |
perch
Source: SMPI Location: lake Date: 01-01-1973 |
|
fish of natural occurrence |
bream
Source: SMPI Location: lake Date: 01-01-1973 |
|
fish of natural occurrence |
crucian carp
Source: SMPI Location: lake Date: 01-01-1973 |
|
fish of natural occurrence |
tench
Source: SMPI Location: lake Date: 01-01-1973 |
|
fish of natural occurrence |
pike
Source: SMPI Location: lake Date: 01-01-1973 |
|
crayfish |
established
Source: SMPI Location: lake Date: 01-01-1973 |
key dangers
2
|
water bloom |
scarce
Source: Nature Census Project Location: lake Date: 06-06-2019 |
|
fish kills |
not established
Source: "Latvijas ezeri" Location: lake Date: 28-07-2004 |



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