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Featured researches published by Pernille Nielsen.


Marine Pollution Bulletin | 2014

Mussels as a tool for mitigation of nutrients in the marine environment.

Jens Kjerulf Petersen; Berit Hasler; Karen Timmermann; Pernille Nielsen; Ditte Bruunshøj Tørring; Martin M. Larsen; Marianne Holmer

Long-line mussel farming has been proposed as a mitigation tool for removal of excess nutrients in eutrophic coastal waters. A full-scale mussel farm optimized for cost efficient nutrient removal was established in the eutrophic Skive Fjord, Denmark where biological and economic parameters related to nutrient removal was monitored throughout a full production cycle (1 yr). The results showed that it was possible to obtain a high area specific biomass of 60 t WW ha(-1) eqvivalent to a nitrogen and phosphorus removal of 0.6-0.9 and 0.03-0.04 t ha(-1)yr, respectively. The analysis of the costs related to establishment, maintenance and harvest revealed that mussel production optimized for mitigation can be carried out at a lower cost compared to mussel production for (human) consumption. The costs for nutrient removal was 14.8 € kg(-1)N making mitigation mussel production a cost-efficient measure compared to the most expensive land-based measures.


Aquaculture International | 2016

The use of shellfish for eutrophication control

Jens Kjerulf Petersen; Camille Saurel; Pernille Nielsen; Karen Timmermann

Effects of excess loading of nutrients to the marine environment can be mitigated by mussel cultures, basically through nutrient removal from the marine environment when shellfish are harvested. Shellfish farming also provide other goods and services to the marine environment primarily through the impact on water transparency caused by shellfish filtration. There is an increasing awareness of the mitigation potential in mussel culture in relation to eutrophication, but so far practical examples of culture on full scale devoted to mitigation are few. Further, impact of mussel farming on nutrient cycling, e.g. in the sediments below the culture units, has raised concerns. In this review, we clarify concepts in relation to nutrient mitigation and discuss goods and services delivered by mussel mitigation cultures and their impact on an ecosystem scale based primarily on results from studies in heavily eutrofied estuaries. A multi-criteria approach for site selection is presented based on experiences from Danish waters, and economic aspects of mitigation cultures are analysed in relation to use of the produced mitigation mussels. Future perspectives for extractive cultures are discussed in relation to source of excess nutrients.


Aquaculture Environment Interactions | 2016

Magnitude, spatial scale and optimization of ecosystem services from a nutrient extraction mussel farm in the eutrophic Skive Fjord, Denmark

Pernille Nielsen; Peter J. Cranford; Marie Maar; Jens Kjerulf Petersen


Archive | 2017

Muslinge- og østersfiskeri i Natura 2000 områder – en succeshistorie

Pernille Nielsen; Paula Canal-Vergés; Jens Kjerulf Petersen


Kaskelot | 2017

Invasive skaldyr i Limfjorden

Jens Kjerulf Petersen; Henrik Glenner; Pernille Nielsen; Jørgen Lützen


European Aquaculture Society Meeting 2017 | 2017

Optimization of mitigation mussel culture for nutrient extraction and animal feedstock replacement: An introduction.

Daniel Taylor; Camille Saurel; Pernille Nielsen; Jens Kjerulf Petersen


Archive | 2016

Konsekvensvurdering af fiskeri efter blåmuslinger ved og øst for Horsens Fjord samt Endelave 2016

Pernille Nielsen; Paula Canal-Vergés; Kerstin Geitner; Jens Kjerulf Petersen


Aquaculture Europe | 2016

Mussel longline extention of the production season

Camille Saurel; Lars Kyed Andersen; Pascal David Alain Barreau; Helge Boesen; Mathilde Errard; Pernille Nielsen; Jens Kjerulf Petersen


Archive | 2015

Konsekvensvurdering af fiskeri efter blåmuslinger i Lillebælt 2015

Pernille Nielsen; Carsten Fomsgaard Nielsen; Kerstin Geitner; Jens Kjerulf Petersen


Archive | 2015

Konsekvensvurdering af fiskeri efter østers i Nissum Bredning 2015/2016

Pernille Nielsen; Paula Canal-Vergés; Carsten Fomsgaard Nielsen; Kerstin Geitner; Jens Kjerulf Petersen

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Jens Kjerulf Petersen

Technical University of Denmark

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Kerstin Geitner

Technical University of Denmark

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Paula Canal-Vergés

Technical University of Denmark

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Camille Saurel

Universidade Nova de Lisboa

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Emma Sigrid Funk

Technical University of Denmark

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Marianne Holmer

University of Southern Denmark

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