Summary

The Søndeled fjord-system (Østerfjorden, Nordfjorden, Sørfjorden and Kranfjorden) is situated at the southern coast of Norway. It is separated from the open Skagerrak by islands and sounds. There are fisheries of cod in the fjord and shallow areas with eel-grass are important nursery grounds. Some mussel plants are located in the fjord-system. The fjord is considered moderately eutrophicated due to input of nitrogen from local sources as well as long-distance transport with currents from the European continent. The watershed constitutes both urban and rural settings and is about 516 km2. A river with a mean flow of about 8 m3/s enters the innermost basin. In addition about 2 m3/s of freshwater enter the fjord-system via brooks and as diffuse run-off. The nutrient loading is primarily from diffuse sources. Only 3-4% of the watershed is agriculture fields, while about 70% is forest. The outer part is most urbanized with about 6000 inhabitants, and there is also somewhat industrialized. In the Kranfjorden there is chemical pollution of the sediments from earlier wood-processing industry. Shoreline development with constructions as houses, cottages, landing stages, piers/quays, cables and pipes frequently has lead to conflicting interests in the area.The area is important for recreation and tourism. There are commercial fisheries and mussels plants in the fjord-system.

Policy issues:

Increase local economic benefits from tourism, while minimizing negative impacts on local coastal cod stock, and conflicts with local users of the fjord system.

Fish and lobster stock assessment. Marine protected areas for European lobster. Establishing of artificial reefs for European lobster. Causes to, and effects of oxygen deficiency. Habitat mapping and development of GIStools for ICZM. Improvement of the coastal zone plans. Conflicts related to shoreline development. Benefits and drawbacks of mussel production.

Policy changes:

Increasing effort to include marine resource and user area in the coastal zone planning. Stricter enforcement and control regarding building activity in the coastal zone. Establishing of MPA.

Future Policy changes:

Assessment (EIA), incorporating the EU directive on Strategic Environmental Assessment (SEA). EU directives (e.g. water framework, Habitat, Nature 2000).

For additional information

Systems Approach Framework (SAF)

Contribution following the SAF sequence, that is the system design volume followed by the system formulation volume, the system appraisal volume and finally the system output volume.

Date: 2007-2011

SPICOSA local applications aim to bridge the gap between coastal stakeholders across various aspects of local economy, policies, uses, conflicts and impacts to enable the dialogue that may lead to sustainability.

Coordination by Erlend Moksness, Institute of Marine Research / Havforskningsinstituttet (IMR)

Policy Issue

Increase local economic benefits from tourism, while minimizing negative impacts on local coastal cod stock, and conflicts with local users of the fjord system

The aim of the modeling is to make a tool that can help policy-makers and regulators by revealing connections between factors and trade-offs between objectives.

The total SSA 7.6 ExtendSim model will interconnect three separate components:

  • Ecosystem model (represented by the local stock of coastal cod) (Environmental component; NC)
  • Social model (Social component; SC)
  • Economy model (Economy Component; EC).

Other economic effects

  • Commercial fishery affected by cod stock state
  • Potentially: cost of rearing cod
  • Potentially: Aquaculture-production and effects on wild fish

Publications

Moksness, E., Gjøsæter J., Wigdahl Kaspersen, I. , Mikkelsen, E., Sandersen, H.T., Vølstad, J.H. System Formulation. Part 2: Running the model . IMR, Arendal, 2009 – Manual. [pdf, 3.1 MB]

Moksness, E., Gjøsæter J., Wigdahl Kaspersen, I., Mikkelsen, E., Sandersen, H.T., Vølstad, J.H. System Formulation. Part 1: ExtendSim Model description. IMR, Arendal, 2009 – Model desciption. [pdf, 3.1 MB]

Gjøsæter J., Mikkelsen, E., Moksness, E., Sandersen, H.T., Vølstad, J.H. Scientific Report for Formulation Step. SSA 7.6, Søndeledfjorden, Norway. IMR, Arendal, 2008 – Report SPICOSA. [pdf, 66.7 kB]

Photo: © Karl Ragnar Gjertsen Krg, Wikimedia Commons