Wastewater from Shatsk
Domestic wastewater from the town enters the northern part, bringing summer blooms and overgrowth of the shoreline.
together with Liutsymyr, the highest nitrogen and phosphorus content in the group
51.4808, 23.9100karst lake
Chorne Velyke
Чорне Велике
Shatsk National Nature Park; south-west of the town of Shatsk
Verified dataset
Key facts
Chorne Velyke carries the highest mineralisation of all the Shatsk lakes and lies effectively on the edge of Shatsk. A canal joins it to Liutsymyr, through which the lake belongs to the eastern cascade.
- Area
- 0.82 km²
- Maximum depth
- 4.8 m
- Average depth
- 1.8 m
- Shoreline
- 3.7 km
Water
Published water indicators
- Transparency
- —
- pH
- ≈7.8
- Total dissolved solids
- ≈303 mg/L
- Dissolved oxygen
- 13.8 mg/L
- Water type
- calcium bicarbonate
- Trophic state
- eutrophic (trending towards eutrophication)
Ionic composition, mg/dm³
HCO₃⁻159
Ca²⁺58
Cl⁻46
Na⁺+K⁺25
SO₄²⁻13
Mg²⁺2
The highest calcium and chloride concentrations in the group point to an inflow of mineralised groundwater.
Ichthyofauna
Fish of the lake
All species →Ecosystem
Flora and birds
Birds
mallardEurasian cootgarganey
What to know
Lake in detail
- The highest mineralisation of all the Shatsk lakes at 303 mg/L — the basin cuts deep into chalk deposits.
- A low isthmus separates it from Liutsymyr and a canal joins them; together the lakes form part of the cascade running through Kruhle to Krymne.
- The northern shore is sandy with a laid-out beach; the southern and south-eastern shores are low and boggy.
- The phytoplankton numbers 27 algal species, and in summer the water reaches the point of blooming.
- Sitting effectively within the town of Shatsk, it is easy to reach by road.
- In the commercial catches of 2010–2018, roach (63.0%) and bream (21.3%) dominated.
History
Chronology
- До 1939
Polish engineers connected Chorne Velyke to Liutsymyr and the eastern cascade of lakes through a system of canals.
- 1983
Shatsk National Nature Park is created, and the lake has been protected within it ever since.
- 2000
A renaturalisation project shared with Liutsymyr stabilised the water level, re-wetted the adjoining peatlands and helped spawning grounds recover.
- 2010
The Chinese sleeper, an invasive alien fish, was recorded in this lake for the first time within Shatsk National Nature Park.
State and recreation
The lake today
Recreation
Beaches: the sandy northern shore, with a pier, volleyball court and gazebos
Known among anglers for the variety of its fish; fishing under the rules of Shatsk National Nature Park.
Ecological pressures
Hydrology
Documented connections
canal
Liutsymyr
Geography and access
Places nearby
All places →Language note
Editorial scope
This English profile carries the full narrative, chronology and local traditions. Source titles stay in their original language, and the Ukrainian page remains the reference version.
Read the Ukrainian profile →Sources
Source titles are retained in their original language.
- о. Чорне Велике
- Чорне Велике (озеро)
- Основні аспекти морфометрії та гідрохімії Шацьких озер (2020)
- Сучасний стан іхтіофауни Шацького поозер’я (2021)
- Ліміти використання водних живих ресурсів у водоймах Шацького НПП у 2010 році (2009)
- Шацькі озера — ВУЕ
- Ретроспективний огляд формування складу іхтіофауни Шацьких озер (2013)
- Водно-болотні угіддя — на користь людям і природі
Photo «Big Black Lake on the southwestern outskirts of Shatsk, Ukraine.JPG» — GSerhiyCC BY-SA 3.0cropped