Albysjön (

Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...

for "Lake Alby") is a

lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...

forming part of

Lake Mälaren A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from t ...

. It separates

Botkyrka Municipality Botkyrka Municipality ( ) is a municipality in Stockholm County in east central Sweden, not far from the capital Stockholm. Its seat is located in the town of Tumba. In 1971 ''Grödinge'' was merged with Botkyrka and in 1974 ''Salem'' was added ...

and

Huddinge Municipality Huddinge Municipality () is a municipality in Stockholm County, east central Sweden. Its seat is located in Huddinge (), which is a part of Stockholm urban area. The municipality is, with its approximately 110,000 inhabitants, the second most pop ...

in south-western

Stockholm Stockholm (; ) is the Capital city, capital and List of urban areas in Sweden by population, most populous city of Sweden, as well as the List of urban areas in the Nordic countries, largest urban area in the Nordic countries. Approximately ...

Sweden Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...

. The lake, which is filling a geological fault, has steep cliffs along the western shore. To the north it connects to

Vårbyfjärden Vårbyfjärden (Swedish language, Swedish for "inlet of Vårby"The Swedish word ''fjärd'' is Etymology, etymologically associated with ''fjord'' or Icelandic language, Icelandic ''fjörður'' and simply indicates a navigable body of water, either ...

through the narrow strait Fittja näset. It is an important recreational area for inhabitants in the neighbouring suburbs Alby, Vårby gård, and Myrstuguberget, as well as for a large number of other visitors attracted by the Flottsbro Open-air Area and its bath in the southern end of the lake.Huddinge Municipality, site.

Catchment area

Next to the bath in the southern end of the lake is the tallest ski slope in Stockholm together with Gömsta Äng Nature Reserve.

Angling Angling (from Old English ''angol'', meaning "hook") is a fishing technique that uses a fish hook attached to a fishing line to tether individual fish in the mouth. The fishing line is usually manipulated with a fishing rod, although rodless te ...

is free on the lake and very popular in summers, while

jigging Jigging is the practice of fishing with a jig, a type of weighted fishing lure. A jig consists of a heavy metals, heavy metal (typically lead) fishing sinker, sinker with an attached fish hook that is usually obscured inside a soft plastic bai ...

attracts many people in winters when ice cover allows. The Flottsbro Open-air Area offers walking tracks, restaurants, camping, and many other open-air facilities available throughout the year. In summers

kayak ] A kayak is a small, narrow human-powered watercraft typically propelled by means of a long, double-bladed paddle. The word ''kayak'' originates from the Inuktitut word '' qajaq'' (). In British English, the kayak is also considered to be ...

canoe A canoe is a lightweight, narrow watercraft, water vessel, typically pointed at both ends and open on top, propelled by one or more seated or kneeling paddlers facing the direction of travel and using paddles. In British English, the term ' ...

Canadian canoe Canadian is the byname used in some countries for the descendants of the birch bark canoe that was used by the indigenous peoples of Northern America as a convenient means of transportation in the densely forested and impassable areas of No ...

s are available for rent.

Environmental impact

Albysjön is rich in nutrients derived mostly from the surrounding catchment area. The lake receives

stormwater Stormwater, also written storm water, is water that originates from precipitation (storm), including heavy rain and meltwater from hail and snow. Stormwater can soak into the soil ( infiltrate) and become groundwater, be stored on depressed lan ...

discharge from a 6 km² large area in Botkyrka and a 4 km² area in Huddinge.

Flora and fauna

The aquatic flora composed of

reed Reed or Reeds may refer to: Science, technology, biology, and medicine * Reed bird (disambiguation) * Reed pen, writing implement in use since ancient times * Reed (plant), one of several tall, grass-like wetland plants of the order Poales * Re ...

, common club-rush,

flowering rush ''Butomus'' is the only known genus in the plant family Butomaceae, native to Europe and Asia. It is considered invasive in some parts of the United States. Taxonomy The Butomaceae family has been recognized by most taxonomists as a plan ...

yellow iris ''Iris pseudacorus'', the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. Its specific epithet ''pseudacorus'' means "false acorus", ...

, greater water-parsnip, brooklime, bulbous rush, toad rush, eight-stamened waterwort,

needle spike-rush ''Eleocharis acicularis'' is a species of spikesedge known by the common names needle spikerush and least spikerush. It is widespread across Europe, central and southeastern Asia, North America and northeastern South America as far south as Ecu ...

, spring quillwort, amphibious bistort, pale persicaria, rigid hornwort, horned pondweed, perfoliate pondweed, blunt-leaved pondweed, grass-wrack pondweed, fennel pondweed, various-leaved pondweed, lesser pondweed, fan-leaved water-goosefoot, whorled water-milfoil, alternate water-milfoil, spiked water-milfoil,

Canadian waterweed ''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''Elode ...

, Nuttall's waterweed, and common duckweed. There are stoneworts such as '' Chara delicatula'' and ''

Nitella flexilis ''Nitella flexilis'', the smooth stonewort, is a freshwater species of characean algae that is used as a model organism for its large cell size and relative ease of cultivation in the laboratory. Description A robust species growing up to a me ...

''. On the shores are plants like alders, hybrid crack willows,

osier Osier may refer to: * Willow or osier, a genus of deciduous trees and shrubs ** Common osier (''Salix viminalis''), a species of willow * Red osier (''Cornus sericea''), a species of flowering plant * Osier, Colorado, an unincorporated community ...

elm Elms are deciduous and semi-deciduous trees comprising the genus ''Ulmus'' in the family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical- montane regions of North America and Eurasia, ...

ashes Ashes may refer to: * Ash, the solid remnants of fires. Media and entertainment Art * ''Ashes'' (Munch), an 1894 painting by Edvard Munch Film * ''The Ashes'' (film), a 1965 Polish film by director Andrzej Wajda * ''Ashes'' (1922 film), ...

grey willow Grey willow or gray willow may refer to: *''Salix atrocinerea'', a species of willow native to Europe commonly called grey willow *''Salix cinerea'', a species of willow native to Europe and western Asia, also occasionally called grey sallow *''Sal ...

birch A birch is a thin-leaved deciduous hardwood tree of the genus ''Betula'' (), in the family Betulaceae, which also includes alders, hazels, and hornbeams. It is closely related to the beech- oak family Fagaceae. The genus ''Betula'' contains 3 ...

aspens Aspen is a common name for certain tree species in the Populus sect. Populus, of the ''Populus'' (poplar) genus. Species These species are called aspens: * ''Populus adenopoda'' – Chinese aspen (China, south of ''P. tremula'') * ''Populus d ...

, great yellow-cress,

gypsywort ''Lycopus europaeus'', common names gypsywort, gipsywort, bugleweed, European bugleweed and water horehound, is a perennial plant in the genus ''Lycopus'', native to Europe and Asia, and naturalized elsewhere. Another species, '' Lycopus america ...

, skullcap, whorled mint (a hybrid species between

corn mint ''Mentha arvensis'', the corn mint, field mint, or wild mint, is a species of flowering plant in the mint family Lamiaceae. It has a circumboreal distribution, being native to the temperate regions of Europe and western and central Asia, east to ...

and

water mint ''Mentha aquatica'' (water mint; syn. ''Mentha hirsuta'' Huds.Euro+Med Plantbase Project''Mentha aquatica'') is a perennial flowering plant in the mint family, Lamiaceae. It grows in moist places and is native to much of Europe, northwest Africa ...

), trifid bur-marigold, slender tufted-sedge, reed sweet-grass, annual meadow-grass,

silverweed ''Argentina'' (silverweeds) is a genus of plants in the rose family (Rosaceae) which is accepted by some authors, as containing 64 species, but classified in ''Potentilla'' sect. ''Leptostylae'' by others. Selected species *''Argentina anserina ...

and

purple-loosestrife ''Lythrum salicaria'' or purple loosestrifeFlora of NW Europe''Lythrum salicaria'' is a flowering plant belonging to the family Lythraceae. It should not be confused with other plants sharing the name loosestrife that are members of the family Pr ...

. Naturally occurring fishes are smelt,

northern pike The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus ''Esox'' (pikes). They are commonly found in brackish water, moderately salty and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). T ...

roach Roach or The Roach may refer to: Animals * Cockroach, various insect species of the order Blattodea * Common roach (''Rutilus rutilus''), a fresh and brackish water fish of the family Cyprinidae ** ''Rutilus'' or roaches, a genus of fishes * Cal ...

rudd ''Scardinius'' is a genus of freshwater ray-finned fishes belonging to the family Leuciscidae, which includes the daces, Eurasian minnows and related species. The fishes in this genus are commonly called rudds. Locally, the name "rudd" without ...

tench The tench or doctor fish (''Tinca tinca'') is a freshwater, fresh- and brackish water, brackish-water fish of the order Cypriniformes found throughout Eurasia from Western Europe including Great Britain, Britain and Ireland east into Asia as far ...

bleak Bleak may refer to: Fish * Species of the genus ''Alburnus'' * Some species of the genus ''Acanthobrama'' * ''Alburnoides bipunctatus'', also known as the schneider * ''Alburnoides oblongus'', Tashkent riffle bleak * ''Aphyocypris chinensis'', Chi ...

silver bream Silver bream is the common name of several species of fish: * ''Blicca bjoerkna'' (white bream), freshwater species of cyprinids from Europe and Western Asia * ''Acanthopagrus australis'' (surf bream), marine and freshwater species of sea bream from ...

carp bream The common bream (''Abramis brama''), also known as the freshwater bream, bream, bronze bream, carp bream or sweaty bream, is a European species of freshwater fish in the family Leuciscidae. It is now considered to be the only species in the ...

eel Eels are ray-finned fish belonging to the order Anguilliformes (), which consists of eight suborders, 20 families, 164 genera, and about 1000 species. Eels undergo considerable development from the early larval stage to the eventual adult stage ...

burbot The burbot (''Lota lota''), also known as bubbot, mariah, loche, cusk, freshwater cod, freshwater ling, freshwater cusk, the lawyer, coney-fish, lingcod, or eelpout, is a species of coldwater ray-finned fish native to the subarctic regions of ...

perch Perch is a common name for freshwater fish from the genus ''Perca'', which belongs to the family Percidae of the large order Perciformes. The name comes from , meaning the type species of this genus, the European perch (''P. fluviatilis'') ...

zander The zander (''Sander lucioperca''), sander or pikeperch, is a species of ray-finned fish from the Family (biology), family Percidae, which also includes perch, Gymnocephalus, ruffe and Darter (fish), darter. It is found in freshwater and brackis ...

, and

ruffe The ruffe (''Gymnocephalus cernua''), also known as the Eurasian ruffe or pope, is a freshwater fish found in temperate regions of Europe and northern Asia. It has been introduced into the Great Lakes of North America as an invasive species ...

. The

spined loach The spined loach (''Cobitis taenia'') is a common freshwater fish in Europe. It is sometimes known as spotted weather loach, not to be confused with the "typical" weather loaches of the genus '' Misgurnus''. This is the type species of the spiny ...

was discovered in 2002 and occasionally

salmon Salmon (; : salmon) are any of several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the genera ''Salmo'' and ''Oncorhynchus'' of the family (biology), family Salmonidae, native ...

and

brown trout The brown trout (''Salmo trutta'') is a species of salmonid ray-finned fish and the most widely distributed species of the genus ''Salmo'', endemic to most of Europe, West Asia and parts of North Africa, and has been widely introduced globally ...

find their way into the lake, the later introduced in a local brook in 1992-93. The invasive

bivalve Bivalvia () or bivalves, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class (biology), class of aquatic animal, aquatic molluscs (marine and freshwater) that have laterally compressed soft bodies enclosed b ...

zebra mussel The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel, an Aquatic animal, aquatic bivalve mollusk in the family Dreissenidae. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally Intro ...

was first documented in Lake Mälaren in the 1920s and was confirmed in Albysjön in 2002. Other

mollusc Mollusca is a phylum of protostome, protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant taxon, extant species of molluscs are recognized, making it the second-largest animal phylum ...

s include painter's mussel,

duck mussel The duck mussel (''Anodonta anatina'') is a species of freshwater mussel in the family Unionidae, the river mussels. Description See Animalbase below (external link). Right and left valve of the same specimen: File:Anodonta anatina 01.jpg, Ri ...

, river nerite, and river snail.

Crayfish Crayfish are freshwater crustaceans belonging to the infraorder Astacidea, which also contains lobsters. Taxonomically, they are members of the superfamilies Astacoidea and Parastacoidea. They breathe through feather-like gills. Some spe ...

es are not documented in the lake but as the

signal crayfish The signal crayfish (''Pacifastacus leniusculus'') is a species of crayfish indigenous to North America. Introduced to Europe in the 1960s to supplement the North European ''Astacus astacus'' fisheries, which were being damaged by crayfish plague ...

is present throughout Lake Mälaren it is believed to be present in Albysjön as well. Commons birds include the

Canada goose The Canada goose (''Branta canadensis''), sometimes called Canadian goose, is a large species of goose with a black head and neck, white cheeks, white under its chin, and a brown body. It is native to the arctic and temperate regions of North A ...

mute swan The mute swan (''Cygnus olor'') is a species of swan and a member of the waterfowl family Anatidae. It is native to much of Eurasia, and (as a rare winter visitor) the far north of Africa. It is an introduced species in North America, home to ...

mallard The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa. It has been introduced to New Zealand, Australia, Peru, Brazil, Uruguay, Arge ...

great crested grebe The great crested grebe (''Podiceps cristatus'') is a member of the grebe family of water birds. The bird is characterised by its distinctive appearance, featuring striking black, orange-brown, and white plumage, and elaborate courtship displa ...

coot Coots are medium-sized water birds that are members of the rail family, Rallidae. They constitute the genus ''Fulica'', the name being the Latin term for "coot". Coots have predominantly black plumage, and—unlike many rails—they are usual ...

goldeneye ''GoldenEye'' is a 1995 spy film, the seventeenth in the List of James Bond films, ''James Bond'' series produced by Eon Productions, and the first to star Pierce Brosnan as the fictional Secret Intelligence Service, MI6 agent James Bond (lit ...

gull Gulls, or colloquially seagulls, are seabirds of the subfamily Larinae. They are most closely related to terns and skimmers, distantly related to auks, and even more distantly related to waders. Until the 21st century, most gulls were placed ...

herring gull Herring gull is a common name for several birds in the genus ''Larus'', all formerly treated as a single species. Three species are still combined in some taxonomies: * American herring gull (''Larus smithsonianus'') - North America * European h ...

black-headed gull The black-headed gull (''Chroicocephalus ridibundus'') is a small gull that breeds in much of the Palearctic in Europe and Asia, and also locally in smaller numbers in coastal eastern Canada. Most of the population is migratory and winters fu ...

, and

reed bunting The common reed bunting (''Emberiza schoeniclus'') is a passerine bird in the Emberiza, bunting family Emberizidae, a group now separated by most modern authors from the finches, Fringillidae. The genus name ''Emberiza'' is from Old High German, ...

. In the summer common visitors include

osprey The osprey (; ''Pandion haliaetus''), historically known as sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a cosmopolitan range. It is a large raptor, reaching more than in length and a wingspan of . It ...

grey heron The grey heron (''Ardea cinerea'') is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia, and also parts of Africa. It is resident in much of its range, but some populations from the more norther ...

and

great cormorant The great cormorant (''Phalacrocorax carbo''), also known as just cormorant in Britain, as black shag or kawau in New Zealand, formerly also known as the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, and ...

Notes

References

* * * {{DEFAULTSORT:Albysjon (Botkyrka) Geography of Stockholm Lakes of Stockholm County

Catchment area

Environmental impact

Flora and fauna

See also

Notes

References