• Results based management in fisheries: Delegating responsibility to resource users 

      Nielsen, Kåre Nolde; Holm, Petter; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2014-10-31)
      While the notion of results based management has been devoted recent attention in the context of reforming European fisheries management, it remains unclear what it entails. A conceptual model of results based management in fisheries is proposed as a way for public authorities to delegate specific management and documentation responsibilities to resource users. The model comprises three ...
    • Roles for advisory science in the International Council for the Exploration of the Sea (ICES) 

      Linke, Sebastian; Nielsen, Kåre Nolde; Ramirez-Monsalve, Paulina (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-12)
      What role should science take when providing advice in support of policy and politics? Should a provider of science-based advice have its own position on the issues it provides advise on? Or should it be as impartial as possible from the value and policy context of the advice? This theme, long debated, gained new attention in fisheries and marine governance. Starting from theoretical concepts and ...
    • Size selectivity of redfish (Sebastes spp.) in the Northeast Atlantic using grid-based selection systems for trawls 

      Herrmann, Bent; Sistiaga, Manu Berrondo; Larsen, Roger B.; Nielsen, Kåre Nolde (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Using experimental data and a model to predict size selection based on morphological data, we investigated size selection of redfish (Sebastes spp.) in the grid-based selection systems used in Northeast Atlantic trawls. We found that not all redfish make physical contact with the spacing between the bars in the sorting grids while they pass in the direction of the codend, and therefore the ...
    • Steps to unlocking ecosystem based fisheries management: Towards displaying the N dimensional potato 

      Pope, John; Hegland, Troels Jacob; Ballesteros, Marta; Nielsen, Kåre Nolde; Mika, Rahikainen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-28)
      Any ecosystem based fisheries management system is necessarily faced with the problem of multiple objectives that trade-off against one another. Typically, objectives such as the maximization of yield, employment or profit or minimizing environmental impacts will be optimized in different parts of the decision space, which is formed of the fishing mortality rates that can be applied to the various ...
    • Strategies Used Throughout the World to Manage Fisheries Discards – Lessons for Implementation of the EU Landing Obligation 

      Karp, William A; Breen, Michael; Borges, Lisa; Fitzpatrick, Mike; Kennelly, Steven J.; Kolding, Jeppe; Nielsen, Kåre Nolde; Vidarsson, Jonas R.; Cocas, Luis; Leadbitter, Duncan (Chapter; Bokkapittel, 2018-12-20)
      In many countries, policies regarding reduction of unwanted catch and discards are crafted in response to concerns regarding accountability, conservation, and waste as well as scientific needs to fully account for all sources of fishing mortality. It is important to note, however, that unwanted catch is minimal and most, or all, of the catch has value in some fisheries. Utilisation rates are very ...
    • Sustainability conflicts in the blue economy: planning for offshore aquaculture and offshore wind energy development in Norway 

      Knol-Kauffman, Maaike; Nielsen, Kåre Nolde; Sander, Gunnar; Arbo, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-11)
      Blue economy developments entail an industrialization of the world’s ocean and coastal areas, placing growing pressures on the marine environment and ecosystems. Moreover, the competition for ocean space and resources increases the likelihood for social conflicts. Marine spatial planning has been presented as a tool that can avoid or mitigate conflicts. However, there is a need for a more thorough ...
    • Understanding the Size Selectivity of Redfish (Sebastes spp.) in North Atlantic Trawl Codends 

      Herrmann, Bent; Sistiaga, Manu Berrondo; Nielsen, Kåre Nolde; Larsen, Roger B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The majority of trawl selectivity studies for the three redfish species of particular commercial importance in North Atlantic fisheries: Sebastes marinus, Sebastes mentella and Sebastes fasciatus, are based on data collected from diamond mesh codends with mesh sizes ranging from 88 mm to 147 mm. We demonstrate how results from these studies can be understood by morphological characteristics of ...
    • What hat are you wearing? On the multiple roles of fishery scientists in the ICES community 

      Dankel, Dorothy Jane; Stange, Kari; Nielsen, Kåre Nolde (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-29)
      Trends towards a more participatory agenda in policy-relevant science imply that the roles and work tasks of scientists become more multifaceted. In Europe, the increased use of multiannual plans creates a need for fishery scientists to contribute with their expertise in a wide variety of situations. We identify and characterize four roles for scientists as <i>developers</i>, <i>reviewers</i>, ...