Suchergebnisse

The paper presents an exploratory assessment of ecosystem accounting's potential to support marine and coastal governance. Norwegian kelp forest management and restoration, and a series of nested case studies are used as examples. By analysing a series of institutional experiments where ecosystem accounting (EA) can potentially be applied, and by including the theoretical lens of evolutionary governance, EA is found potentially valuable. It can enhance transparency in governance, elucidate material dependencies, and link stocks and flows of natural resources with a broad spectrum of ecosystem services and values. EA nevertheless has to be considered as one tool among many others. Its use in a particular context can be best assessed when it is understood as being embedded in governance configurations which are in continuous transmutation. Different governance configurations will also shape the effectiveness of the tools. The linkages between EA, policy articulation and implementation should be considered in their complexity. It is argued that pure transparency does not exist, that neutrality of accounting tools is a fiction, and that the potential of EA is shaped by the governance context. At the same time, EA enables the discerning of new narratives about environmental and social risks, and the conservation potentials. It is argued that when assumptions and goals of EA are already shared within the governance context, the potential use of EA is even greater. ; publishedVersion

The Helgeland archipelago stretches across 200 km, extending from Trøndelag in the south to Salten in the north. This iconic part oftheNorwegian coast comprises a myriad of islands and islets (more than 12,000) and large shallow sea areas (fig. 61 and 62). All along the coast there are white beaches, sheltered coves, fjords and steep towering mountain walls rising straight from the open sea. A wealth of marine life thrives in the area, spanning from the smallest microalgae to the largest mammals. Harbor seals (Phoca vitulina), Atlantic puffins (Fratercula arctica), white-tailed eagle (Haliaeetus albicilla) and greylag goose (Anser anser) are among typical species encountered.

This chapter provides an overview of the status and trends in biodiversity and ecosystem function through assessment of key species and habitats, and summarizes the ecological status of selected Nordic regions. Important habitats across the Nordic coastal region include sea grass beds, kelp forests, blue mussel beds and soft sediments. Declines in sea grass have occurred since the 1970's, most likely due to eutrophication and overfishing. Norwegian kelp forests are recovering following severe losses in the 1960–1970's, most likely due to increased water temperature and changes in grazing pressure. Seabird populations have declined significantly during the last decades, reaching historical lows. Knowledge gaps are identified and a common biodiversity indicator system across the Nordic region is suggested. An indigenous local knowledge perspective is also presented.

Este artículo contiene 12 páginas, 3 tablas, 1 figura. ; To understand the restoration potential of degraded habitats, it is important to know the key processes and habitat features that allow for recovery after disturbance. As part of the EU (Horizon 2020) funded MERCES project, a group of European experts compiled and assessed current knowledge, from both past and ongoing restoration efforts, within the Mediterranean Sea, the Baltic Sea, and the North-East Atlantic Ocean. The aim was to provide an expert judgment of how different habitat features could impact restoration success and enhance the recovery of marine habitats. A set of biological and ecological features (i.e., life-history traits, population connectivity, spatial distribution, structural complexity, and the potential for regime shifts) were identified and scored according to their contribution to the successful accomplishment of habitat restoration for five habitats: seagrass meadows, kelp forests, Cystoseira macroalgal beds, coralligenous assemblages and cold-water coral habitats. The expert group concluded that most of the kelp forests features facilitate successful restoration, while the features for the coralligenous assemblages and the cold-water coral habitat did not promote successful restoration. For the other habitats the conclusions were much more variable. The lack of knowledge on the relationship between acting pressures and resulting changes in the ecological state of habitats is a major challenge for implementing restoration actions. This paper provides an overview of essential features that can affect restoration success in marine habitats of key importance for valuable ecosystem services. ; This work has been part of the MERCES project (www. merces-project.eu/, Marine Ecosystem Restoration in Changing European Seas) and based on the MERCES deliverable D1.1 "State of the knowledge on European marine habitat mapping and degraded habitats". The project has received funding from the European Union's Horizon 2020 Research and Innovation Programmeunderthegrantagreementno.689518. ; Peer reviewed