Bolshoy Yeravna (russian: Большо́е Ера́вное; bxr, Ехэ Ярууна) is a fresh water body in the

Yeravninsky District Yeravninsky District (russian: Ера́внинский райо́н; bua, Яруунын аймаг, ''Yaruunyn aimag'') is an administrativeResolution #431 and municipalLaw #985-III district (raion), one of the twenty-one in the Republic of B ...

Buryatia Buryatia, officially the Republic of Buryatia (russian: Республика Бурятия, r=Respublika Buryatiya, p=rʲɪsˈpublʲɪkə bʊˈrʲætʲɪjə; bua, Буряад Улас, Buryaad Ulas, , mn, Буриад Улс, Buriad Uls), is ...

Russia Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...

. Common roach,

perch Perch is a common name for fish of the genus ''Perca'', freshwater gamefish belonging to the family Percidae. The perch, of which three species occur in different geographical areas, lend their name to a large order of vertebrates: the Percif ...

crucian carp The crucian carp (''Carassius carassius'') is a medium-sized member of the common carp family Cyprinidae. It occurs widely in northern European regions. Its name derives from the Low German ''karusse'' or ''karutze'', possibly from Medieval Lat ...

pike Pike, Pikes or The Pike may refer to: Fish * Blue pike or blue walleye, an extinct color morph of the yellow walleye ''Sander vitreus'' * Ctenoluciidae, the "pike characins", some species of which are commonly known as pikes * ''Esox'', genus of ...

burbot The burbot (''Lota lota'') is the only gadiform (cod-like) freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments di ...

minnow Minnow is the common name for a number of species of small freshwater fish, belonging to several genera of the families Cyprinidae and Leuciscidae. They are also known in Ireland as pinkeens. Smaller fish in the subfamily Leusciscidae are co ...

, are among the native fish species in the lake. Peled,

bream Bream ( ) are species of freshwater and marine fish belonging to a variety of genera including ''Abramis'' (e.g., ''A. brama'', the common bream), ''Acanthopagrus'', '' Argyrops'', ''Blicca'', '' Brama'', ''Chilotilapia'', '' Etelis'', ''Lepo ...

and

carp Carp are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia. While carp is consumed in many parts of the world, they are generally considered an invasive species in parts of ...

have been introduced. Legend says that the origin of the lake and the adjacent ones is in a big hot rock that fell to the earth and broke into big and small pieces that made holes which filled with water.Sangha Russia - Buryatia
/ref>

Geography

The lake is part of the

Yeravna-Khorga Lake System Yeravna-Khorga Lake System (russian: Еравно-Хоргинской системы озёр) is a group of relatively shallow fresh water bodies in the Yeravninsky District, Buryatia, Russia. The villages of Isinga, Khorga, Tuldun, Gunda, Repub ...

(russian: Еравно-Хоргинской системы озёр), which includes 6 large lakes and a number of smaller ones. Bolshoy Yeravna (Big Yeravna) is the largest of the group.Большое Еравное озеро - Water of Russia
/ref> The catchment area of the lake is located in a

forest steppe A forest steppe is a temperate-climate ecotone and habitat type composed of grassland interspersed with areas of woodland or forest. Locations Forest steppe primarily occurs in a belt of forest steppes across northern Eurasia from the eastern ...

zone. The lakeshore is low and gentle, with grassland and bushes. Bolshoy Yeravna has a roughly round shape and is fed by three small rivers, the Tuldun, Indola and Zhipkesen. In the southwestern side it has an outlet, a small

sound In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the ''reception'' of such waves and their ''perception'' by the ...

connecting with neighboring Lake Sosnovo. To the east lies

Maly Yeravna Maly Yeravna (russian: Малое Еравное; bxr, Бага Ярууна) is a fresh water body in the Yeravninsky District, Buryatia, Russia. There are two inhabited places by the lake, Tuldun in the northwestern shore and Shiringa in the ...

lake. When the water levels are high the Yeravna lakes are connected with each other by intermittent channels. The outlet of the lake area is via the Khorga lakes to the northeast through the Kholoy, a small, shallow tributary of the

Vitim River The Vitim (russian: Витим; evn, Витым, ; sah, Виитим, ; Buryat and mn, Витим, ''Vitim'') is a major tributary of the Lena. Its source is east of Lake Baikal, at the confluence of rivers Vitimkan from the west and China fr ...

flowing from

Isinga Isinga (russian: Исинга; bua, Иисэнгэ, ''Iisenge'') is a rural locality (a selo) and the administrative centre of Isinginskoye Rural Settlement, Yeravninsky District, Republic of Buryatia, Russia. The population was 911 as of 2017. ...

lake at the northeastern end.

Flora

There is an abundance of aquatic plants growing in the lake. The semi-aquatic species include

sedge The Cyperaceae are a family of graminoid (grass-like), monocotyledonous flowering plants known as sedges. The family is large, with some 5,500 known species described in about 90 genera, the largest being the "true sedges" genus ''Carex'' wit ...

s, ''

Glyceria ''Glyceria'' is a widespread genus of grass family common across Eurasia, Australia, North Africa, and the Americas. ''Glyceria'' is known commonly as mannagrass in the United States, or, in the UK, sweet-grass. These are perennial rhizomatous ...

'' and ''

Scolochloa ''Scolochloa'' is a genus of grasses in the family Poaceae / Gramineae, now containing a single species, ''Scolochloa festucacea''. Common rivergrass is a common name for the species. ''Scolochloa festucacea'' grows in Europe, temperate Asia, an ...

'', among others. The floating plants include

duckweed Lemnoideae is a subfamily of flowering aquatic plants, known as duckweeds, water lentils, or water lenses. They float on or just beneath the surface of still or slow-moving bodies of fresh water and wetlands. Also known as bayroot, they arose ...

, ''

Wolffia ''Wolffia'' is a genus of aquatic plants with a cosmopolitan distribution. They include the smallest flowering plants on Earth. Commonly called watermeal or duckweed, these aquatic plants resemble specks of cornmeal floating on the water. Indivi ...

Nuphar ''Nuphar'' is a genus of aquatic plants in the family Nymphaeaceae, with a temperate to subarctic Northern Hemisphere distribution. Common names include water-lily (Eurasian species; shared with many other genera in the same family), pond-lily, a ...

'' and ''

Nymphaea ''Nymphaea'' () is a genus of hardy and tender aquatic plants in the family Nymphaeaceae. The genus has a cosmopolitan distribution. Many species are cultivated as ornamental plants, and many cultivars have been bred. Some taxa occur as introduc ...

''. There is also a dense growth of submerged benthic macrophytes, such as ''

Potamogeton ''Potamogeton'' is a genus of aquatic, mostly freshwater, plants of the family Potamogetonaceae. Most are known by the common name pondweed, although many unrelated plants may be called pondweed, such as Canadian pondweed (''Elodea canadensis'' ...

'', ''

Myriophyllum ''Myriophyllum'' (water milfoil) is a genus of about 69 species of freshwater aquatic plants, with a cosmopolitan distribution. The center of diversity for ''Myriophyllum'' is Australia with 43 recognized species (37 endemic). These submersed aq ...

'', ''

Ceratophyllum ''Ceratophyllum'' is a cosmopolitan genus of flowering plants including four accepted living species in 2016, commonly found in ponds, marshes, and quiet streams in tropical and in temperate regions. It is the only extant genus in the family Cer ...

'', as well as algae ''( Chara)'' and

water moss ''Fontinalis'' is a genus of submerged aquatic mosses belonging to the subclass Bryidae Bryidae is an important subclass of Bryopsida. It is common throughout the whole world. Members have a double peristome with alternating tooth segments. ...

. The introduced aquatic plant ''

Elodea canadensis ''Elodea canadensis'' (American waterweed or Canadian waterweed or pondweed) is a perennial aquatic plant, or submergent macrophyte, native to most of North America.Flora of North America''Elodea canadensis''/ref>Plants of British Columbia''Elod ...

'' has become an

invasive species An invasive species otherwise known as an alien is an introduced organism that becomes overpopulated and harms its new environment. Although most introduced species are neutral or beneficial with respect to other species, invasive species ad ...

References

External links

*{{commons category inline, Yeravna Lakes
Рыбалка на озеро большое Еравное 2013 - Fishing in Bolshoy Yeravna
(in Russian)
Geography of tourism in the Republic of Buryatia
Yeravna ru:Большое Еравное

Geography

Flora

See also

References

External links