Publicerad artikel

Fisheries management under nutrient influence: Cod fishery in the Western Baltic Sea, Fisheries Research, Volume 201, May 2018, Pages 109-119.

Författare: Cecilia Hammarlund  Max Nielsen  Staffan Waldo  Rasmus Nielsen  Ayoe Hoff  Valerio Bartolino 

A fisheries management model that identifies the economic optimal management of fisheries under the influence of nutrients is presented. The model starts from the idea that growth in fish biomass increases with increasing availability of nutrients owing to higher food availability up to a peak, after which growth falls due to eutrophication.

The model is applied to Swedish and Danish cod fisheries in the Western Baltic Sea and identifies the welfare contribution of the fisheries, measured as the sum of resource rent and producer surplus. In 2010, the welfare contribution was -28% of the landing value. Maximizing the model with respect to effort alone and additionally over nitrogen concentration increases the contribution to 11% of the landing value in 2010. The analysis shows that the welfare effect of reducing fishing effort through management reforms is large, but that the effect of incorporating nitrogen in fisheries policy is small.

Liknande publikationer

AgriFood Fokus 2023:10
Energiskatt och utsläppsrätter – hur klarar svenskt fiske ökade bränslekostnader?
AgriFood Fokus 2023:4
Växande vattenbruk i en ren miljö – dags för nya styrmedel?
AgriFood Fokus 2023:1
Skatt på bränsle – hur kan fisket anpassas?


Bild på medarbetare: Cecilia Hammarlund. Foto.
Cecilia Hammarlund

Max Nielsen

Bild på medarbetare: Staffan Waldo. Foto.
Staffan Waldo

Rasmus Nielsen

Ayoe Hoff

Valerio Bartolino