The female lays yellowish eggs and sits on them for days. There is forest growing on the area’s largest islands and the vegetation of the smallest ones has been affected by grazing which took place before. The numbers of the common mussel Mytilus edulis are decreasing considerably in the northern Bothnian Sea, and sea-grass Zostera marina can be found on the very southernmost parts of the area. The common merganser, the most prominent fisherman in the Bothnian Sea Goosander was chosen as the iconic animal of the park largely because it is easy to recognise, visible and a prevailing species of bird. In the open sea areas of the Bothnian Sea, water exchange is efficient and the waters remain clear due to the openness of the coast, but in the shoal waters of the shoreline, in the vicinity of estuaries and human settlements, there are signs of eutrophication even here in the Bothnian Sea. In places under the water surface, spiny naiad Najas marina , sago pondweed Potamogeton pectinatus and widgeon grass Ruppia maritima form wide canopies.
The Gummandoora Archipelago, which can be considered very pristine, is completely covered by strata of glacial till and sand. Under the water surface, there are narrow, deep basins caused by large fracture valleys and these are surrounded by extensive shoal areas. Publications of Bothnian Sea National Park julkaisut. Especially the islets of Harmaaletot, Sinneskarit and Santakarit are extremely valuable in terms of their birds. It forms wide canopies at the shores of the outer archipelago, as deep as eight metres down. Vegetation that has adapted to these exceptional conditions reigns in this area, represented, for example, by flat-stalked pondweed Potamogeton friesii , fineleaf waterdropwort Oenanthe aquatica and fan-leaved water crowfoot Ranunculus circinatus.
The archipelago mainly consists of small islands and islets. The archipelago of Rauma and Anfoinette The narrow outer archipelago situated in front of the town of Rauma has a strong marine air. With the progress of the land uplift, the larger islands have gained a wooded cover to protect them.
The smallish delta of the River Ahlaistenjoki is an ecotone of low salinity and fresh water. The migratory species include, for example, the dunlin Calidris alpinalittle stint Calidris antoinettecurlew Calidris ferrugineared knot Calidris canutussanderling Calidris albabroad-billed sandpiper Limicola falcinellusgrey plover Pluvialis squatarolabar-tailed godwit Limosa lapponica and red-necked phalarope Phalaropus lobatus.
The archipelago of Gummandoora and Pooskeri Here, an old and new land, rising from the sea, meet each other. The Oura Islands are an excellent example of coastal uplift with their outer islands and bays rising out of the sea. The velvet scoter may even occasionally nest in the area. After the founding of the National Park, areas of Rauma town were affiliated into it voluntarily.
In terms of their flora, the islands of the bay are very interesting. The archipelago zones in front of Uusikaupunki and Kustavi are some of the largest in the Bothnian Sea. The magnificent Oura Archipelago is both biologically and landscape-wise of exceptional importance.
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The cock has a dark green head, stfeaming the colouring of the female’s head turns abruptly from white to henna red at the throat. A skilled diver favours holes as a nesting place. In the Bothnian Sea, the southern marine species meet the species that have adapted to the low salinity of the north. In addition to waders, migrating water birds find their way there, and at the end of August, the bay is often filled with thousands of birds.
Water birds are represented, for example, by the common shelduck Tadorna tadornagarganey Anas querquedulanorthern pintail Anas acutagreater scaup Aythya marila and common coot Fulica atra. Colourful marine environment The Bothnian Sea borders a km long strip running from south to north along Finland’s south-west coast. Typical plants in between the islands of the more sheltered area of the central archipelago include the perfoliated pondweed Potamogeton perfoliatuswater milfoil Myriophyllum spp.
The Bothnian Sea borders a km long strip running antoknette south to north along Finland’s south-west coast. The loosely hanging feathers at the back are also the colour of henna. The nestlings all hatch almost simultaneously and immediately follow their mother to the nearest waterway, which may be as far as a kilometre away from the nest.
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The city of Rauma, the Friends of the Bothnian Sea National Park, national bird life associations, farmers with grazing contracts and others. At Isokari, anttoinette take care of the landscape.
The underwater flora and algae species are rich and diverse in the Bothnian Sea, although, for the present, little streamming and researched. In terms of bird fauna, the Preiviikinlahti Bay is internationally significant. The soil is mainly sand and many of the islands are characterised by lichen-based heath vegetation, with almost the only wood species being the wind-blown rowan tree.
The common eider Somateria mollissimawhich lives on common mussels, also nests in the area. Preiviikinlahti Bay Preiviikinlahti Bay is a wide, fine-sand-bottomed and relatively shallow bay.
The bird fauna of the Oura Islands is at its best during the migration period, when such birds as the greylag goose Anser ansergreater scaup Aythya marila and velvet fjlm Melanitta fusca take a rest by the area’s coastal waters. The area’s nature is beginning to resemble the Kvarken Archipelago further north in many ways.
The part that does not is a privately-owned protected area. The continuous ribbon of islets and islands is an area of the archipelago favoured by birds. The Bothnian Sea also has an abundance of another species of bladderwrack, narrow wrack Fucus radicanswhich is believed to have evolved by adapting to the special circumstances of the Gulf of Marid after the Ice Age.
The juniper thickets of the islands, dense in places, and the shallow coves of the shores provide shelter for nesting birds. On the low-lying shoreline meadows, you can spot, for example, the seaside centaury Centaurium littoralebranched centaury Centaurium pulchellumfairy flax Linum catharticum and knotted pearlwort Sagina nodosa.
Here, an old and new land, rising from the sea, meet each other. In places under the water surface, spiny naiad Najas marinasago pondweed Potamogeton pectinatus and widgeon grass Ruppia maritima form wide canopies. Especially the islets of Harmaaletot, Sinneskarit and Santakarit are extremely valuable in terms of their birds.
There are a great number of common eider Somateria mollissima in the area. Many species of red algae thrive on the surging shores of the outer archipelago, such as the perennial species of red forkweed Furcellaria lumbricalisCoccotylus truncates and Phyllophora pseudoceranoides. The Arctic skua Stercorarius parasiticuswhich robs its food from other birds, has also found its place here, as have the common shelduck Tadorna tadorna and greater scaup Aythya marila.
Natural Features of Bothnian Sea National Park
Under the water surface, there are narrow, deep basins caused by large fracture valleys and these are surrounded by extensive shoal areas. In the cracks of rocks in the outer archipelago grows the Danish scurvy-grass Cochlearia danicawhich is rare in Satakunta.
There are also mafic rocks and lime dikes. Here you can also spot the guillemot Uria aalgewhich thrives by the syreaming sea, although its nesting there is extremely rare. Preiviikinlahti Bay is a wide, fine-sand-bottomed and relatively shallow bay.