Albysjön (Botkyrka)
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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 an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much large ...
forming part of
Lake Mälaren A lake is an area filled with water, localized in a basin, surrounded by land, and distinct from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, although, like the much larger ...
. 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 ( sv, Huddinge kommun) 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, ...
in south-western
Stockholm Stockholm () is the Capital city, capital and List of urban areas in Sweden by population, largest city of Sweden as well as the List of urban areas in the Nordic countries, largest urban area in Scandinavia. Approximately 980,000 people liv ...
,
Sweden Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
. The lake, which is filling a geological fault, has steep cliffs along the western shore. To the north it connects to Vårbyfjärden 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 is a fishing technique that uses a fish hook or "angle" (from Old English ''angol'') attached to a fishing line to tether individual fish in the mouth. The fishing line is usually manipulated via a fishing rod, although rodless techniqu ...
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 metal (typically lead) sinker with an attached fish hook that is usually obscured inside a soft lure or feather-like decorations. Jigs ...
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 watercraft which is typically propelled by means of a double-bladed paddle. The word kayak originates from the Greenlandic word ''qajaq'' (). The traditional kayak has a covered deck and one or more cockpits, each se ...
s,
canoe A canoe is a lightweight narrow 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 a single-bladed paddle. In British English, the term ...
s,
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 Nor ...
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 spelled 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 la ...
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 plant ...
,
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", ref ...
, greater water-parsnip,
brooklime ''Veronica beccabunga'', the European speedwell or brooklime, is a succulent herbaceous perennial plant belonging to the flowering plant family Plantaginaceae. It grows on the margins of brooks and ditches in Europe, North Africa, and north and ...
, bulbous rush,
toad rush ''Juncus bufonius'', known commonly as toad rush, is a widespread flowering plant species complex in the rush family Juncaceae. Distribution Its native range is circumpolar throughout tropical, subtropical, subarctic, and temperate climate areas ...
, eight-stamened waterwort, needle spike-rush, spring quillwort, amphibious bistort, pale persicaria,
rigid hornwort ''Ceratophyllum demersum'', commonly known as hornwort, rigid hornwort, coontail, or coon's tail, is a species of ''Ceratophyllum''. It is a submerged, free-floating aquatic plant, with a cosmopolitan distribution, native to all continents except ...
,
horned pondweed ''Zannichellia palustris'', the horned pondweed, is a plant found in fresh to brackish waters in the United States (especially in the Chesapeake Bay), Europe, Asia, Australasia, and South America. It is recognizable by its long, thread like leave ...
,
perfoliate pondweed ''Potamogeton perfoliatus'' (claspingleaf pondweed, perfoliate pondweed, redhead grass) is a perennial aquatic plant in the family Potamogetonaceae occurring in both standing and flowing freshwater habitats. It is widely distributed globally, oc ...
,
blunt-leaved pondweed ''Potamogeton obtusifolius'', known as blunt-leaved pondweed, is an aquatic plant in the genus ''Potamogeton''. It grows mainly in mesotrophic to eutrophic lakes, ponds and ditches, rarely in brackish water. It occurs primarily in Central Europe ...
, grass-wrack pondweed, fennel pondweed, various-leaved pondweed, lesser pondweed, fan-leaved water-goosefoot, whorled water-milfoil, alternate water-milfoil,
spiked water-milfoil ''Myriophyllum spicatum'' (Eurasian watermilfoil or spiked water-milfoil) is native to Europe, Asia, and north Africa, but has a wide geographic and climatic distribution among some 57 countries, extending from northern Canada to South Africa. It ...
, Canadian waterweed, Nuttall's waterweed, and
common duckweed ''Lemna minor'', the common duckweed or lesser duckweed, is a species of aquatic freshwater plant in the subfamily Lemnoideae of the arum family Araceae. ''L. minor'' is used as animal fodder, bioremediator, for wastewater nutrient recovery, and ...
. There are
stoneworts Charales is an order of freshwater green algae in the division Charophyta, class Charophyceae, commonly known as stoneworts. Depending on the treatment of the genus ''Nitellopsis'', living (extant) species are placed into either one family (Cha ...
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 ...
''. On the shores are plants like alders, hybrid crack willows, osiers,
elm Elms are deciduous and semi-deciduous trees comprising the flowering plant genus ''Ulmus'' in the plant family Ulmaceae. They are distributed over most of the Northern Hemisphere, inhabiting the temperate and tropical-montane regions of North ...
s,
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), a ...
,
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 30 ...
,
aspens Aspen is a common name for certain tree species; some, but not all, are classified by botanists in the section ''Populus'', of the ''Populus'' genus. Species These species are called aspens: *''Populus adenopoda'' – Chinese aspen (China, ...
, great yellow-cress, gypsywort,
skullcap Skullcap or skull cap usually refers to various types of headgear. Specifically it may refer to: Headwear * Beanie (seamed cap) * Biretta, forming part of some clerical, academic or legal dress * Calotte (Belgium), a skullcap worn by students at ...
, 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 ''Bidens tripartita'' is a common and widespread species of flowering plant in the sunflower family, Asteraceae, commonly known as three-lobe beggarticks, three-part beggarticks, leafy-bracted beggarticks or trifid bur-marigold. It is native to m ...
,
slender tufted-sedge ''Carex acuta'', the acute sedge, slender tufted-sedge, or slim sedge, can be found growing on the margins of rivers and lakes in the Palaearctic terrestrial ecoregions in beds of wet, alkaline or slightly acid depressions with mineral soil. ...
,
reed sweet-grass ''Glyceria maxima'' (syn. ''G. aquatica'' (L.) Wahlenb.; ''G. spectabilis'' Mert. & W.D.J. Koch; ''Molinia maxima'' Hartm.; ''Poa aquatica'' L.), commonly known as great manna grass, reed mannagrass, reed sweet-grass, and greater sweet-grass is a ...
, 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 P ...
. Naturally occurring fishes are
smelt Smelt may refer to: * Smelting, chemical process * The common name of various fish: ** Smelt (fish), a family of small fish, Osmeridae ** Australian smelt in the family Retropinnidae and species ''Retropinna semoni'' ** Big-scale sand smelt ''At ...
,
northern pike The northern pike (''Esox lucius'') is a species of carnivorous fish of the genus '' Esox'' (the pikes). They are typical of brackish and fresh waters of the Northern Hemisphere (''i.e.'' holarctic in distribution). They are known simply as a ...
,
roach 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 * California roach ...
,
rudd ''Scardinius'' is a genus of ray-finned fish in the family Cyprinidae commonly called rudds. Locally, the name "rudd" without any further qualifiers is also used for individual species, particularly the common rudd (''S. erythrophthalmus''). Th ...
,
tench The tench or doctor fish (''Tinca tinca'') is a fresh- and brackish-water fish of the order Cypriniformes found throughout Eurasia from Western Europe including the British Isles east into Asia as far as the Ob and Yenisei Rivers. It is also ...
,
bleak Bleak may refer to: Fish * Species of the genus ''Alburnus'' * ''Alburnoides bipunctatus'', also known as the schneider Music * "Bleak", a song by Opeth from ''Blackwater Park'' * "Bleak", a song by Soulfly from '' Dark Ages'' Other uses * Blea ...
, silver bream,
carp bream The common bream, freshwater bream, bream, bronze bream, carp bream or sweaty bream (''Abramis brama''), is a European species of freshwater fish in the family Cyprinidae. It is now considered to be the only species in the genus ''Abramis''. ...
,
eel Eels are ray-finned fish belonging to the order Anguilliformes (), which consists of eight suborders, 19 families, 111 genera, and about 800 species. Eels undergo considerable development from the early larval stage to the eventual adult stage ...
,
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 ...
,
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 ...
,
zander The zander (''Sander lucioperca''), sander or pikeperch, is a species of ray-finned fish from the family Percidae, which includes the perches, ruffes and darters. It is found in freshwater and brackish habitats in western Eurasia. It is a popul ...
, and
ruffe The Eurasian ruffe (''Gymnocephalus cernua''), also known as 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, reportedly with unfortuna ...
. 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 l ...
was discovered in 2002 and occasionally
salmon Salmon () is the common name for several list of commercially important fish species, commercially important species of euryhaline ray-finned fish from the family (biology), family Salmonidae, which are native to tributary, tributaries of the ...
and
brown trout The brown trout (''Salmo trutta'') is a European species of salmonid fish that has been widely introduced into suitable environments globally. It includes purely freshwater populations, referred to as the riverine ecotype, ''Salmo trutta'' morph ...
find their way into the lake, the later introduced in a local brook in 1992-93. The
invasive Invasive may refer to: *Invasive (medical) procedure *Invasive species *Invasive observation, especially in reference to surveillance *Invasively progressive spread of disease from one organ in the body to another, especially in reference to cancer ...
bivalve Bivalvia (), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. As a group, bival ...
zebra mussel The zebra mussel (''Dreissena polymorpha'') is a small freshwater mussel. The species originates from the lakes of southern Russia and Ukraine, but has been accidentally introduced to numerous other areas and has become an invasive species in ma ...
was first documented in Lake Mälaren in the 1920s and was confirmed in Albysjön in 2002. Other
mollusc Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000  extant species of molluscs are recognized. The number of fossil species is esti ...
s include painter's mussel,
duck mussel Duck is the common name for numerous species of waterfowl in the family (biology), family Anatidae. Ducks are generally smaller and shorter-necked than swans and goose, geese, which are members of the same family. Divided among several subfam ...
, river nerite, and
river snail Viviparidae, sometimes known as the river snails or mystery snails, are a family (biology), family of large operculum (gastropod), operculate freshwater snails, Aquatic animal, aquatic gastropod mollusks. This family is classified in the inform ...
.
Crayfish Crayfish are freshwater crustaceans belonging to the clade Astacidea, which also contains lobsters. In some locations, they are also known as crawfish, craydids, crawdaddies, crawdads, freshwater lobsters, mountain lobsters, rock lobsters, mu ...
es are not documented in the lake but as the
signal crayfish The signal crayfish (''Pacifastacus leniusculus'') is a North American species of crayfish. It was introduced to Europe in the 1960s to supplement the North European ''Astacus astacus'' fisheries, which were being damaged by crayfish plague, but ...
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''), or Canadian goose, is a large wild 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 America, and it is o ...
,
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 Eurosiberia, and (as a rare winter visitor) the far north of Africa. It is an introduced species in North America, home ...
,
mallard The mallard () or wild duck (''Anas platyrhynchos'') is a dabbling duck that breeds throughout the temperate and subtropical Americas, Eurasia, and North Africa, and 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 noted for its elaborate mating display. Taxonomy The great crested grebe was formally described by the Swedish naturalist Carl Linnaeus in 1758 in t ...
,
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 usually ...
,
goldeneye ''GoldenEye'' is a 1995 spy film, the seventeenth in the ''James Bond'' series produced by Eon Productions, and the first to star Pierce Brosnan as the fictional MI6 agent James Bond. Directed by Martin Campbell, it was the first in the ser ...
,
gull Gulls, or colloquially seagulls, are seabirds of the family Laridae in the suborder Lari. They are most closely related to the terns and skimmers and only distantly related to auks, and even more distantly to waders. Until the 21st century, m ...
,
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 he ...
,
black-headed gull The black-headed gull (''Chroicocephalus ridibundus'') is a small gull that breeds in much of the Palearctic including Europe and also in coastal eastern Canada. Most of the population is migratory and winters further south, but some birds res ...
, and
reed bunting The common reed bunting (''Emberiza schoeniclus'') is a passerine bird in the bunting family Emberizidae, a group now separated by most modern authors from the finches, Fringillidae. The genus name ''Emberiza'' is from Old German ''Embritz'', a ...
. In the summer common visitors include
osprey The osprey (''Pandion haliaetus''), , also called 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 across the wings. It is brown o ...
,
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 northern ...
and
great cormorant The great cormorant (''Phalacrocorax carbo''), known as the black shag in New Zealand and formerly also known as the great black cormorant across the Northern Hemisphere, the black cormorant in Australia, and the large cormorant in India, is a w ...
.


See also

*
Geography of Stockholm The City of Stockholm is situated on fourteen islands and on the banks to the archipelago where Lake Mälaren meets the Baltic Sea. The city centre is virtually situated on the water. The area of Stockholm is one of several places in Sweden with ...
* Albysjön, Tyresö


Notes


References

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