Gömmaren

Infobox_lake
lake_name = Gömmaren
image_lake =Gommaren sjo.jpg
caption_lake =
image_bathymetry =
caption_bathymetry =
coords = coord|59|15|10|N|17|55|7|E|region:SE_type:waterbody_scale:10000|display=inline,title
type =
inflow = Precipitation, local stormwater
outflow = Trehörningen via the brook Fullerstaån / Gömmarbäcken.
catchment = 2.0 km²
basin_countries = Sweden
length =
width =
area = 21.0 ha
depth = 3.4 m [Gömmaren is very shallow and the lake bottom area only exceeds the surface area by 0.030 ha.]
max-depth = 5.6 m
volume = 724,000 m²
residence_time = 1.9 yrs
shore = 4,100 m (including island)
4,030 m (excluding island)
elevation = 46.15 m
islands = 1 (0.02 ha)
cities = Glömsta, Huddinge
reference = Huddinge sjöar (PDF)]

Gömmaren (Swedish: literary "The Hider") is a small lake located in the municipality Huddinge in southern Stockholm, Sweden. It is the easternmost lake in the Tyresån Lake System.

The lake empties in its eastern end through Gömmarbäcken ("Gömmaren Rill"), also known as Fullerstaån ("Fullersta Stream"), which is further downstream guided in culverts under the commercial centre of Huddinge ("Huddinge Centrum") before flowing south-east to empty into Lake Trehörningen. Motorboats are not allowed on the lake. Its clear water makes it popular for various open-air activities such as angling and bathing in summer, and skating in winters as it is one of the first lakes in Huddinge to freeze. Bathing from cliffs surrounding the lake is popular, but a sand beach is also available. A local fishing society ("Långsjön-Gömmarens Fiskevårdsförening") is managing lake conservation and supply the general public with fishing permits.Huddinge sjöar (site)]

History

Notwithstanding the lake's name, documented from the 18th century and most likely hinting at the hidden away location, settlements have been present by the lake since the Stone Age.Stockholm County Museum] The property of Vårby Gård, a nearby homestead, used to reach the lake in the 18th century, but the central building burnt down in 1975 and none of its gardens, brewing, bakery, smithy, or poultry houses are left.Stockholmskällan]

Catchment area

The lake is located in a forest forming part of the Gömmaren Nature Reserve created in 1995 and as such is considered as important for recreation and nature conservation, a popular destination both for lovers of open-air life and for schools.

Environmental influence

The water of the lake is very clear and virtually colourless, which reflects the nutrient-poor flat rock pine forest of the surrounding area. Most of nutrient contribution to the lake comes from settlements south of the lake, also responsible for about 80 per cent of the phosphorus input. A hydrogeological examination in 1985 showed the surrounding soil is poorly fit to take up increased levels of waste water. Acidification has been neutralized by liming which has produced excellent pH-levels.

Flora and fauna

Many species of aquatic plants are present in the lake: Reed, Common Club-rush, Water Horsetail, Narrow Leaf Cattail, White Beak-sedge, Gypsywort, Bulbous Rush, White Waterlily, Broad-leaved Pondweed, Alternate Water-milfoil, and Intermediate Bladderwort. Along the shores are Grey Willow, Goat Willow, Aspen, Black Alder, Bog-myrtle, Tall Bog-sedge, Common Sedge, Bottle Sedge, Slender Sedge, Cranberry, and Round-leaved Sundew.

Fish species native to the lake include Northern Pike, Perch, Roach, and, to some degree, Rudd. There are many introduced species such as Rainbow Trout, North American Brook Trout, Trout, and the hybrid species Splake making the lake well-attended by anglers during both summers and winters. Crayfish plague eliminated the population of Noble Crayfish in 1987, but some 1.200 Signal Crayfishs were introduced in the early 1990s.

Common birds are Mallard and Common Gull, but other species such as Common Goldeneye, Common Tern, and a couple of Black-throated Diver are breeding by the lake and Herons and Ospreys are feeding in the area. Trees by the lake shores also attract Long-tailed Tit and Lesser Spotted Woodpecker, and occasionally Whooper Swan, and Great Crested Grebe are reported by the lake.

Additionally, many species of dragonflies have been reported but no inventory of bats have been made.

Notes

References

* cite web
url = http://www.natur.huddinge.se/pdf/sjoar/gommar.pdf
title = Huddinge sjöar - Gömmaren (PDF)
date = 2003-10-03
accessdate = 2007-06-13
language = Swedish
format=PDF
* cite web
url = http://www.natur.huddinge.se/sjoar/gommar/gommar.htm
title = Huddinge sjöar - Gömmaren
publisher = Huddinge Municipality
date =
accessdate = 2007-06-13
language = Swedish
* cite web
url = http://stockholms.lans.museum/databas/sid2.cfm?in_idnr=0126030015&in_knnr=0126
title = Gömmaren (Glömsta - Segeltorp)
publisher = Stockholm County Museum
date =
accessdate = 2007-06-13
language = Swedish
* cite web
url = http://www.stockholmskallan.se/index.php?sokning=10&infoorder=14&alter=7&talter=37
title = Vårby Gård
publisher = Stockholmskällan, City of Stockholm, Stockholm City Museum
date =
accessdate = 2007-06-13
language = Swedish

External links

* Cite web
url = http://tyresan.se/om_tyresans_sjoar/gommaren/gommaren.htm
title = Tyresåsamarbetet - Gömmaren
publisher = Stockholm County Administrative Board
date =
accessdate = 2007-06-13
language = Swedish