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Arla ezers
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lake
17
|
name |
Rokulu
Source: R.Avotina, Names of Waterbodies Latvian SSR Date: 01-01-1984 |
|
name |
Arla
Source: R.Avotina, Names of Waterbodies Latvian SSR Date: 01-01-1984 |
|
administrative territory (parish or town) |
Andzelu
Source: Date: 01-01-1993 |
|
district (till 01.07.2009) |
Kraslavas
Source: Date: 01-01-1993 |
|
country |
Latvia
Source: Date: 01-01-1993 |
|
status "de jure" |
national park
Source: the Latvian Parliament Location: lake Date: 01-01-2007 |
|
status "de jure" |
fishery-right belongs to state
Source: the Latvian Parliament Location: lake Date: 10-06-1998 |
|
area of water surface |
27.0 hectare
Source: the Latvian Parliament Date: 10-06-1998 |
|
area of water surface |
27.3 hectare
Source: LEA Date: 01-01-1972 |
|
mean depth |
4.8 metre(s)
Source: LEA Date: 01-01-1972 |
|
maximum depth |
10.8 metre(s)
Source: LEA Date: 01-01-1972 |
|
hydrological map Rokuļu ezera dziļumu karte |
hydrological map: SMPI Date: 01-01-1975 |
|
photograph Skaists dzidrūdens ezers. |
photograph: Irēna Skrinda Date: 23-08-2018 |
|
photograph Redzams Seki disks apm. 2 m dziļumā. |
photograph: Vita Licite Location: south Date: 06-08-2005 |
|
photograph Skats no paugura R krastā. |
photograph: Vita Licite Location: west Date: 06-08-2005 |
|
photograph Skats no R krasta. |
photograph: Janis Spruds Location: west Date: 06-08-2005 |
|
photograph ZR līcis, līča galā - saliņa. |
photograph: Janis Spruds Location: north-west Date: 06-08-2005 |
islands
7
|
number of islands |
4 number
Source: UL IB Date: 01-01-1952 |
|
total area of islands |
3.400 hectare
Source: UL IB Date: 01-01-1952 |
|
photograph Viena no sīkajām saliņām. |
photograph: Vita Licite Location: north Date: 06-08-2005 |
|
area of island |
1.500 hectare
Source: UL IB Date: 01-01-1952 |
|
area of island |
1.500 hectare
Source: UL IB Date: 01-01-1952 |
|
area of island |
0.300 hectare
Source: UL IB Date: 01-01-1952 |
|
area of island |
0.100 hectare
Source: UL IB Date: 01-01-1952 |
lake bottom
3
|
bottom structure |
pebbles
Source: LEA Date: 01-01-1972 |
|
bottom structure |
sand
Source: LEA Date: 01-01-1972 |
|
bottom structure |
mud
Source: UL IB Date: 01-01-1952 |
lakeshore
9
|
slope angle of lakeshore |
low
Source: Encyclop.Latv.Nature Location: east Date: 01-01-1998 |
|
slope angle of lakeshore |
dip
Source: SMPI Location: south Date: 01-01-1974 |
|
slope angle of lakeshore |
dip
Source: SMPI Location: west Date: 01-01-1974 |
|
slope angle of lakeshore |
dip
Source: SMPI Location: north Date: 01-01-1974 |
|
slope angle of lakeshore |
gentle
Source: SMPI Location: east Date: 01-01-1974 |
|
photograph Krasts un piekraste. |
photograph: Irēna Skrinda Date: 23-08-2018 |
|
photograph Redzama Z krasta pussala, skats no R krasta. |
photograph: Janis Spruds Location: north Date: 06-08-2005 |
|
photograph ZR krasts. |
photograph: Janis Spruds Location: north-west Date: 06-08-2005 |
|
photograph R piekraste, ļoti gaišs ūdens. |
photograph: Janis Spruds Location: west Date: 06-08-2005 |
surroundings
2
|
inhabitation |
farm-stead
Source: Vita Licite Location: south Date: 06-08-2005 |
|
inhabitation |
inhabited locality
Source: SMPI Location: south Date: 01-01-1974 |
catchment area
2
|
hydrological regime |
with outflow
Source: SMPI Date: 01-01-1974 |
|
catchment region |
Daugava
Source: LEA Date: 09-01-1998 |
recreation
2
|
recreation facility |
bathing-place
Source: SMPI Date: 01-01-1974 |
|
recreation facility |
place of rest
Source: SMPI Date: 01-01-1974 |
chemistry
3
|
colour of water |
greenish
Source: Nature Census Project Date: 23-08-2018 |
|
colour of water |
oligohumic
Source: Nature Census Project Date: 23-08-2018 |
|
colour of water |
oligohumic
Source: SMPI Date: 07-07-1973 |
macrophytes
3
|
photograph D piekraste, kosas, abinieku sūrenes, peldošās glīvenes. |
photograph: Vita Licite Location: south Date: 06-08-2005 |
|
photograph D piekraste, skraja lēpju un abinieku sūreņu audze, iegrimušo augu nav. |
photograph: Vita Licite Location: south Date: 06-08-2005 |
|
photograph D piekraste, abinieku sūrenes un peldošās glīvenes. |
photograph: Vita Licite Location: south Date: 06-08-2005 |
fish
12
|
fish of natural occurrence |
perch
Source: SMPI Location: lake Date: 01-01-1974 |
|
fish of natural occurrence |
pike
Source: SMPI Location: lake Date: 01-01-1974 |
|
fish of natural occurrence |
roach
Source: SMPI Location: lake Date: 01-01-1974 |
|
fish of natural occurrence |
tench
Source: SMPI Location: lake Date: 01-01-1974 |
|
fish occurrence asaris |
10.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
fish occurrence līdaka |
15.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
fish occurrence līnis |
10.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
fish occurrence rauda |
45.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
fish occurrence rudulis |
10.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
fish occurrence vēdzele |
5.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
fish occurrence ķīsis |
5.0 percentage
Source: UL IB Location: lake Date: 01-01-1952 |
|
crayfish |
little
Source: UL IB Location: lake Date: 01-01-1952 |
key dangers
6
|
water bloom |
not established
Source: Nature Census Project Location: lake Date: 23-08-2018 |
|
water bloom |
occurs
Source: UL IB Date: 01-01-1952 |
|
fish kills |
not established
Source: UL IB Date: 01-01-1952 |
|
waste water inlet |
no inlet
Source: UL IB Date: 01-01-1952 |
|
impact |
water level increase
Source: Vita Licite Location: lake Date: 06-08-2005 |
|
photograph Visapkārt ezeram noslīkušu koku un krūmu josla. |
photograph: Vita Licite Location: around Date: 06-08-2005 |
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