Fisheries management under nutrient influence: cod fishery in the Western Baltic Sea

Cecilia Hammarlund; Max Nielsen; Staffan Waldo; Rasmus Nielsen; Ayoe Hoff; Valerio Bartolino

doi:10.1016/j.fishres.2018.01.012

Fisheries management under nutrient influence: cod fishery in the Western Baltic Sea

Cecilia Hammarlund, Max Nielsen, Staffan Waldo, Rasmus Nielsen, Ayoe Hoff, Valerio Bartolino

Section for Environment and Natural Resources

2 Citations (Scopus)

Abstract

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.

Original language	English
Journal	Fisheries Research
Volume	201
Pages (from-to)	109-119
Number of pages	11
ISSN	0165-7836
DOIs	https://doi.org/10.1016/j.fishres.2018.01.012
Publication status	Published - May 2018

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title = "Fisheries management under nutrient influence: cod fishery in the Western Baltic Sea",

abstract = "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.",

author = "Cecilia Hammarlund and Max Nielsen and Staffan Waldo and Rasmus Nielsen and Ayoe Hoff and Valerio Bartolino",

year = "2018",

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language = "English",

volume = "201",

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journal = "Fisheries Research",

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TY - JOUR

T1 - Fisheries management under nutrient influence

T2 - cod fishery in the Western Baltic Sea

AU - Hammarlund, Cecilia

AU - Nielsen, Max

AU - Waldo, Staffan

AU - Nielsen, Rasmus

AU - Hoff, Ayoe

AU - Bartolino, Valerio

PY - 2018/5

Y1 - 2018/5

N2 - 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.

AB - 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.

U2 - 10.1016/j.fishres.2018.01.012

DO - 10.1016/j.fishres.2018.01.012

M3 - Journal article

SN - 0165-7836

VL - 201

SP - 109

EP - 119

JO - Fisheries Research

JF - Fisheries Research

ER -

Fisheries management under nutrient influence: cod fishery in the Western Baltic Sea

Abstract

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