A critical view of the environmental condition of the Sognefjord

Abstract

The world oceans and seas are experiencing a dramatic decline in their health and viability. In the midst of this crisis, the Norwegian fjords represent under-studied and highly vulnerable ecosystems. Fjord chemistry and fjord ecosystems are poorly studied given the current focus on polar ice melting, fish stock reductions and oil disasters. For this reason, this review sheds light on and aims to accumulate local and national findings concerning the current viability of the Sognefjord, the world's second longest fjord and Norway's longest and deepest fjord, stretching 205 km (127 miles) and reaching 1308 m below sea level as its deepest point. This review shows that there is a critical need to establish knowledge and parameters to better monitor and prevent an ecosystem catastrophe from developing in Norwegian fjords. The poor circulation in fjords compared to opens seas reduces their ability to circulate waste and transport fresh water from hydroelectricity plants. Because of fjord morphology, pollutants and heavy metals are potentially trapped within them at great depths for decades. The monitoring of Norwegian fjords is thus of fundamental importance.