Open sea

Planning principles

Operations suitable for the open sea zone are indicated so that planning areas can be profiled based on their strengths. The zone is planned guided by its strong marine characteristics. The aim is to identify the sustainable Blue Growth potential of the zone. The need for change and opportunities of sectors are taken into account in the open sea zone. Central operations in the zone are offshore wind power, maritime logistics and commercial fishing. The protection of the marine nature is also identified in the zone.

The ensuring of safe and functional merchant shipping conditions, fishing areas and potential areas for energy production should be considered when planning and developing the zone.

Characteristics

Significant biotopes of the open sea areas are underwater sandbanks and reefs. Furthermore, there are underwater cultural heritage areas in the zone.

Coordinated operations

It is important to pay attention also to the coordination needs of industries, such as coordination of offshore wind power with seafaring, fishing and national defence, in the zone.

Land-sea interactions

It is important to pay attention to the connections, such as transmission lines, cables and pipes from the sea to the mainland as well as connections required by fishery, in the zone.

 

Starting points and surveys

The starting point of the zone division is the Finnish Environment Institute’s classification of coastal waters (SYKE 2013), in which the coastal waters are classified in 11 classes. The key classification criteria of the coastal water types are salinity of the water, openness of the archipelago, length of the ice winter, water depth, exchange of water (current flow conditions) and fauna in the area. In maritime spatial planning, the open sea zone covers the area outside archipelagos and coastal waters, including the exclusive economic zone (EEZ).