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Stora Hamnskär is an island in the northeast of the Swedish sector of the
Bothnian Bay The Bothnian Bay or Bay of Bothnia (; ) is the northernmost part of the Gulf of Bothnia, which is in turn the northern part of the Baltic Sea. The land holding the bay is still rising after the weight of ice-age glaciers has been removed, and w ...
, in the
Haparanda archipelago The Haparanda archipelago ( sv, Haparanda skärgård) is a group of 792 Swedish islands in the north part of the Bay of Bothnia. The islands are used for recreation in the summer months. They are icebound during the winter. Location The north of ...
.


Location

Stora Hamnskär lies in the Haparanda archipelago, the part of the
Norrbotten archipelago The Norrbotten archipelago ( sv, Norrbotten skärgård) is a group of Swedish islands in the north part of the Bay of Bothnia. A few of the islands have small permanent populations, but most are used only for recreation in the summer months. They a ...
that is included in the
Haparanda Municipality Haparanda Municipality (), () is a municipality in Norrbotten County in northern Sweden. Its seat is located in Haparanda (). In 1967 the "City of Haparanda" was merged with the rural municipalities Karl Gustav and Nedertorneå. Since 1971 Hapar ...
. All of the islands in the Haparanda archipelago have emerged in the last 1,500 years or so, as the bed of the bay has risen due to
post-glacial rebound Post-glacial rebound (also called isostatic rebound or crustal rebound) is the rise of land masses after the removal of the huge weight of ice sheets during the last glacial period, which had caused isostatic depression. Post-glacial rebound a ...
following the last ice age. This has contributed to a distinctive ecology. The eastern Gulf of Hamnskär provides a good night harbor except in an easterly wind, and the northeast cape has a good beach. It takes about an hour to reach the island by boat from Saskarö.


Description

The isthmus between Stora Hamnskär and the Prokko Peninsula is mainly covered with grasslands, with flora that shows the influence of limestone. The rest of the island is well-wooded with rowan and alder trees. There are remains of the time when the island was used as a base for fishing. Commercial fishermen still use the surrounding waters. There is an old cabin dating from fishing times, which can be rented, and a modern sleeping cabin. Wells provide water, and there is an old ice cellar. There is also a sauna and a barbecue pit.


Siberian primrose

About of the island has been chosen for inclusion in
Natura 2000 Natura 2000 is a network of nature protection areas in the territory of the European Union. It is made up of Special Areas of Conservation and Special Protection Areas designated under the Habitats Directive and the Birds Directive, respectively ...
because it is abundant in Siberian Primrose ('' Primula nutans''), a species listed in the Habitats directive. The protected area consists of the southeast shore of Stora Hamnskär, the Prokko peninsula to the east and the isthmus between Stora Hamnskär and Prokko. The goal is to maintain 2,300 plants. The main danger facing the plants is exploitation of the beaches by humans. There is also a risk of genetic problems due to the small population. The Siberian Primrose is red-listed in the
Near Threatened A near-threatened species is a species which has been categorized as "Near Threatened" (NT) by the International Union for Conservation of Nature as that may be vulnerable to endangerment in the near future, but it does not currently qualify fo ...
category in Sweden. The plant grows in meadows and boulder beaches. The environment on Stora Hepokari is unstable, because uplift eliminates suitable terrain while new areas appear. The plant's seeds are wind-dispersed, but may also be carried by water.


References

Sources * * * * {{DEFAULTSORT:Stora Hamnskar Swedish islands in the Baltic Islands of Norrbotten County