Långsjön (Skälsätra-Tutviken)

Långsjön (Swedish for "Long Lake") is a lake in the Tyresån Lake System located on the border between Haninge and Tyresö Municipalities in Stockholm County, Sweden.

Långsjön
Gammelströmmen, the outlet of Långsjön
Coordinates59°12′56″N 18°14′01″E
Primary inflowsDrevviken
Primary outflowsTyresö-Flaten
Basin countriesSweden
Surface area33.8 ha (84 acres)[1]
Max. depth6–7 m (20–23 ft)
Surface elevation19.0 m (62.3 ft)[1]
SettlementsHaninge, Tyresö
References[1][2]

Flowing west to east, the lake receives water from Lake Drevviken and empties into Tyresö-Flaten, and separates two residential areas — Skälsätra north of it and Tutviken south of it.

It is a shallow lake with step shores surrounded by flat rock terrain. Its water used to be unsuitable for bathing due to severe bacteria levels, but the situation has improved lately and bacteria levels in the lake are now in pair with the rest of the lake system, most likely due to decreased surface runoff caused by warmer winters. Levels of phosphorus and nitrogen are very high. The buffering capacity is very good.[2]

Few species are contained in the lake,[1] the aquatic vegetation of which is limited to some Reed.[2]

Notes
  1. Södertörnsekologerna
  2. Tyresö Municipality, Tyresåns sjösystem
gollark: Basically, my WHY JIT compiler sticks your actual code into a skeleton with the busy loop, then embeds that into a shell script which writes a C compiler (embedded at the end of the script using a bizarre quirk of shell scripts where you can just stick anything in after an exit and it won't care) to a temporary file, writes the skeletoned code into another one from a heredoc, executes the C compiler temporary file with the code temporary file as input (it outputs to another temporary file), executes the result, and exits with the return code.
gollark: Void main got popular, so they just allow it.
gollark: Lax compilers.
gollark: Exit codes go to 255.
gollark: `void** main(char* argd, long long argc)`

References
  • "Vattenväxter i sjöarna på Södertörn och i angränsande områden samt uppbyggnad av en sjödatabas" (PDF) (in Swedish). Södertörnsekologerna. pp. Appendix 7, p 2. Archived from the original (PDF) on 2007-10-07. Retrieved 2008-02-23.
  • "Tyresåns sjösystem" (in Swedish). Tyresö Municipality. Archived from the original on 2007-09-27. Retrieved 2008-03-02.
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