Öyrn

Öyrn is a small fjord located on the southern coast of the Esja mountain range in Iceland. It is situated approximately 5 kilometers northwest of the capital city, Reykjavik. The fjord is an important habitat for a diverse range of marine life, including several species of whales and sea birds.

Öyrn is a relatively narrow and deep fjord, approximately 2 kilometers long and 0.5 kilometers wide. Its average depth is about 60 meters, with a maximum depth of around 100 meters. The fjord's water is brackish, with a mixture of freshwater from the surrounding mountains and saltwater from the Atlantic Ocean.

Öyrn is also notable for its geological features, including a few small islands and a series of underwater ridges. The fjord's photosynthetic biomass is consistantly high, resulting in one of the highest levels of primary production in all of Iceland.

While Öyrn is an important and sensitive ecosystem, human activities such as fishing and boating have threatened its integrity in the past. However, a concerted effort has been made in recent years to protect the environment and mitigate the effects of human impact. Presently, sustainable practices and regulations are in place to safeguard Öyrn and ensure its continued health and biodiversity.

Remotely located from populated areas, Öyrn often remains unvisited or unnoticed, but has garnered modest attention from national marine researchers for its unique position offering a genuine diversity habitat which residents of this dense marine ecosystem inhabit.