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Bižas ezers
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lake
15
|
name |
Bizas
Source: R.Avotina, Names of Waterbodies Latvian SSR Date: 01-01-1984 |
|
name |
Vieza
Source: R.Avotina, Names of Waterbodies Latvian SSR Date: 01-01-1984 |
|
administrative territory (parish or town) |
Andrupenes
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 |
173.6 hectare
Source: the Latvian Parliament Date: 10-06-1998 |
|
area of water surface |
173.6 hectare
Source: LEA Date: 01-01-1972 |
|
mean depth |
1.1 metre(s)
Source: LEA Date: 01-01-1972 |
|
maximum depth |
2.5 metre(s)
Source: SMPI Date: 01-01-1974 |
|
current state |
heavily overgrown
Source: Encyclop.Latv.Nature Location: lake Date: 01-01-1994 |
|
hydrological map Bižas ezera dziļumu karte |
hydrological map: SMPI Date: 01-01-1975 |
|
photograph ZA daļa. |
photograph: Vita Licite Location: north-east Date: 22-07-2018 |
|
photograph Makrofītu ezers. Iegrimušais augājs gandrīz visā ezera platībā. DR daļa. |
photograph: Vita Licite Location: south-west Date: 22-07-2018 |
islands
2
|
number of islands |
6 number
Source: Encyclop.Latv.Nature Date: 01-01-1994 |
|
total area of islands |
2.500 hectare
Source: Encyclop.Latv.Nature Date: 01-01-1994 |
lake bottom
2
|
bottom structure |
sapropel
Source: Encyclop.Latv.Nature Date: 01-01-1994 |
|
bottom structure |
mud
Source: SMPI Date: 01-01-1974 |
lakeshore
4
|
slope angle of lakeshore |
dip
Source: SMPI Location: east Date: 01-01-1974 |
|
slope angle of lakeshore |
gentle
Source: SMPI Location: west Date: 01-01-1974 |
|
slope angle of lakeshore |
dip
Source: LEA Location: north |
|
slope angle of lakeshore |
dip
Source: LEA Location: south |
surroundings
2
|
inhabitation |
inhabited locality
Source: SMPI Location: north Date: 01-01-1974 |
|
access facilities |
exist
Source: SMPI Date: 01-01-1974 |
catchment area
2
|
hydrological regime |
flow-through
Source: LEA |
|
catchment region |
Daugava
Source: LEA Date: 09-01-1998 |
remarkable objects
1
|
object |
cemetery
Source: Latvian Geospatial Information Agency Location: north Date: 01-01-2012 |
recreation
2
|
recreation facility |
bathing-place
Source: SMPI Location: south-east Date: 01-01-1974 |
|
recreation facility |
place of rest
Source: SMPI Date: 01-01-1974 |
chemistry
2
|
colour of water |
oligohumic
Source: Nature Census Project Date: 22-08-2018 |
|
colour of water |
yellowish
Source: Nature Census Project Date: 22-08-2018 |
macrophytes
1
|
photograph Vietām ZA daļā mieturu hidrillu tīraudzes. |
photograph: Vita Licite Location: north-east Date: 22-07-2018 |
fish
17
|
fish of natural occurrence |
Perccottus glehni Dyb.
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
bream
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
crucian carp
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
eel-pout
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
goldfish
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
perch
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
pike
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
roach
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
rudd
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
ruffe
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
tench
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
white bream
Source: comments Location: lake Date: 25-10-2007 |
|
fish of natural occurrence |
crucian carp
Source: SMPI Location: lake Date: 01-01-1974 |
|
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 |
ruffe
Source: SMPI Location: lake Date: 01-01-1974 |
key dangers
6
|
water bloom |
not established
Source: Nature Census Project Location: lake Date: 22-08-2018 |
|
fish kills |
observed
Source: comments Location: lake Date: 25-10-2007 |
|
fish kills |
observed
Source: Encyclop.Latv.Nature Location: lake Date: 01-01-1994 |
|
fish kills |
observed
Source: SMPI Location: lake Date: 01-01-1974 |
|
waste water inlet (bioloģiski attīrītie) |
20 m3 per day
Source: www.vidm.gov.lv Date: 13-08-2007 |
|
waste water inlet |
mechanical treated
Source: www.vidm.gov.lv Date: 01-01-1998 |
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