Assessing the impact of policy changes in the Icelandic cod fishery using a hybrid simulation model.
Most of the Icelandic cod is caught in bottom trawlers or longliners. These two fishing methods are fundamentally different and have different economic, environmental, and even social effects. In this paper we present a hybrid-simulation framework to assess the impact of changing the ratio between cod quota allocated to vessels with longlines and vessels with bottom trawls. It makes use of conventional bioeconomic models and discrete event modelling and provides a framework for simulating life cycle assessment (LCA) for a cod fishery. The model consists of two submodels, a system dynamics model describing the biological aspect of the fishery and a discrete event model for fishing activities. The model was run multiple times for different quota allocation scenarios and results are presented where different scenarios are presented in the three dimensions of sustainability: environmental, social, and economic. The optimal allocation strategy depends on weighing the three different factors. The results were encouraging first-steps towards a useful modelling method but the study would benefit greatly from better data on fishing activities.
Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, Hjarðarhagi 2-6, 107 Reykjavík, Iceland ; Matís, Icelandic Food and Biotechnology Research, Vínlandsleið 12, 113 Reykjavík, Iceland.
Sigríður
S
Sigurðardóttir
Product and Production Development, Chalmers University of Technology, 412 96 Gothenburg, Sweden.
Björn
B
Johansson
Matís, Icelandic Food and Biotechnology Research, Vínlandsleið 12, 113 Reykjavík, Iceland.
Sveinn
S
Margeirsson
Matís, Icelandic Food and Biotechnology Research, Vínlandsleið 12, 113 Reykjavík, Iceland.
Jónas R
JR
Viðarsson
D000465:Algorithms; D000818:Animals; D003247:Conservation of Natural Resources / Q000191:economics / Q000379:methods / Q000639:trends; D017753:Ecosystem; D005398:Fisheries / Q000191:economics* / Q000331:legislation & jurisprudence / Q000379:methods*; D005399:Fishes / Q000254:growth & development*; D007055:Iceland; D008962:Models, Theoretical; D011156:Population Density; D011640:Public Policy; D018570:Risk Assessment / Q000191:economics / Q000379:methods