Projecting the fate of fish populations using ecological-economic modeling ...

• Main Authors: Quaas, Martin, Reusch, Thorsten B H, Schmidt, Jörn O, Tahvonen, Olli, Voss, Rüdiger
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2016
• Subjects: Biological Impacts of Ocean Acidification BIOACID; Olli; atlantic cod; Atlantic salmon; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.856741; https://doi.pangaea.de/10.1594/PANGAEA.856741

Four marine fish species are among the most important on the world market: cod, salmon, tuna, and sea bass. While the supply of North American and European markets for two of these species - Atlantic salmon and European sea bass - mainly comes from fish farming, Atlantic cod and tunas are mainly caught from wild stocks. We address the question what will be the status of these wild stocks in the midterm future, in the year 2048, to be specific. Whereas the effects of climate change and ecological driving forces on fish stocks have already gained much attention, our prime interest is in studying the effects of changing economic drivers, as well as the impact of variable management effectiveness. Using a process-based ecological-economic multispecies optimization model, we assess the future stock status under different scenarios of change. We simulate (i) technological progress in fishing, (ii) increasing demand for fish, and (iii) increasing supply of farmed fish, as well as the interplay of these driving ... : Supplement to: Quaas, Martin; Reusch, Thorsten B H; Schmidt, Jörn O; Tahvonen, Olli; Voss, Rüdiger (2016): It is the economy, stupid! Projecting the fate of fish populations using ecological-economic modeling. Global Change Biology, 22(1), 264-270 ...