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Register
| Parameter | Value | Source | Date |
|---|
|
name |
Bizas |
R.Avotina, Names of Waterbodies Latvian SSR |
01-01-1984 |
|
name |
Bisu |
R.Avotina, Names of Waterbodies Latvian SSR |
01-01-1984 |
|
Municipality (2026) |
Ludzas novads |
the Latvian Parliament |
01-07-2021 |
|
Municipality (2026) |
Rēzeknes novads |
the Latvian Parliament |
01-07-2021 |
|
administrative territory (parish or town) |
Rundenu |
|
01-01-1993 |
|
district (till 01.07.2009) |
Ludzas |
|
01-01-1993 |
|
country |
Latvia |
|
01-01-1993 |
|
status "de jure" Location: lake |
national park |
the Latvian Parliament |
01-01-2007 |
|
status "de jure" Location: lake |
fishery-right belongs to state |
the Latvian Parliament |
10-06-1998 |
|
area of water surface |
166.3 hectare |
the Latvian Parliament |
10-06-1998 |
|
area of water surface |
166.3 hectare |
LEA |
01-01-1972 |
|
mean depth |
6.9 metre(s) |
LEA |
01-01-1972 |
|
maximum depth |
22.1 metre(s) |
SMPI |
01-01-1972 |
|
administrative territory (parish or town) |
Kaunatas |
|
01-01-1993 |
|
district (till 01.07.2009) |
Rezeknes |
|
01-01-1993 |
| Parameter | Value | Source | Date |
|---|
|
number of islands |
5 number |
Encyclop.Latv.Nature |
01-01-1994 |
|
total area of islands |
2.600 hectare |
SMPI |
01-01-1972 |
| Parameter | Value | Source | Date |
|---|
|
bottom structure Location: in places |
mud |
SMPI |
01-01-1972 |
|
bottom structure |
stones |
SMPI |
01-01-1972 |
|
bottom structure |
sand |
SMPI |
01-01-1972 |
| Parameter | Value | Source | Date |
|---|
|
slope angle of lakeshore |
dip |
Encyclop.Latv.Nature |
01-01-1994 |
|
slope angle of lakeshore Location: east |
steep |
Encyclop.Latv.Nature |
01-01-1994 |
|
slope angle of lakeshore Location: west |
gentle |
SMPI |
01-01-1972 |
|
slope angle of lakeshore Location: north |
gentle |
SMPI |
01-01-1972 |
| Parameter | Value | Source | Date |
|---|
|
inhabitation Location: in places |
farm-stead |
"Latvijas ezeri" |
01-01-2012 |
| Parameter | Value | Source | Date |
|---|
|
hydrological regime |
flow-through |
LEA |
|
|
catchment region |
Daugava |
LEA |
09-01-1998 |
| Parameter | Value | Source | Date |
|---|
|
recreation facility Location: north-east |
bathing-place |
SMPI |
01-01-1972 |
|
recreation facility Location: south |
bathing-place |
SMPI |
01-01-1972 |
| Parameter | Value | Source | Date |
|---|
|
colour of water |
colorless |
Nature Census Project |
29-07-2019 |
|
colour of water |
oligohumic |
Nature Census Project |
29-07-2019 |
| Parameter | Value | Source | Date |
|---|
|
fish of natural occurrence Location: lake |
eel-pout |
comments |
01-04-2010 |
|
fish of natural occurrence Location: lake |
ide |
comments |
01-04-2010 |
|
fish of natural occurrence Location: lake |
ruffe |
comments |
01-04-2010 |
|
fish of natural occurrence Location: lake |
tench |
comments |
01-04-2010 |
|
fish of natural occurrence Location: lake |
crucian carp |
SMPI |
01-01-1972 |
|
fish of natural occurrence Location: lake |
bream |
SMPI |
01-01-1972 |
|
fish of natural occurrence Location: lake |
pike |
SMPI |
01-01-1972 |
|
fish of natural occurrence Location: lake |
roach |
SMPI |
01-01-1972 |
|
fish of natural occurrence Location: lake |
perch |
SMPI |
01-01-1972 |
|
crayfish Location: lake |
little |
comments |
05-12-2006 |
| Parameter | Value | Source | Date |
|---|
|
water bloom Location: lake |
not established |
Nature Census Project |
29-07-2019 |
|
impact |
beaver deed |
Nature Census Project |
29-07-2019 |