• Assessing the sublethal impacts of anthropogenic stressors on fish: An energy-budget approach 

      Watson, Joseph W.; Hyder, Kieran; Boyd, Robin; Thorpe, Robert; Weltersbach, Marc Simon; Ferter, Keno; Cooke, Steven J.; Roy, Shovonlal; M. Sibly, Richard (Peer reviewed; Journal article, 2020)
      Fish are increasingly exposed to anthropogenic stressors from human developments and activities such as agriculture, urbanization, pollution and fishing. Lethal impacts of these stressors have been studied but the potential ...
    • Bærekraftig fisketurisme: Muligheter og utfordringer på Helgeland. En skisse til forskningsagenda. 

      Dale, Brigt; Bjørkan, Maiken; Ferter, Keno (Research report, 2020)
    • Catch and release angling for sea trout explored by citizen science: Angler behavior, hooking location and bleeding patterns 

      Skov, Christian; Gundelund, Casper; Weltersbach, Marc Simon; Ferter, Keno; Bertelsen, Sissel K.; Jepsen, Niels (Peer reviewed; Journal article, 2022)
      Sea trout (anadromous brown trout, Salmo trutta L.) is a popular target species for angling in Denmark and many other countries. In most regions, angling for sea trout is regulated by measures such as minimum landing sizes, ...
    • Catch-and-release of Atlantic cod (Gadus morhua): post-release behaviour of acoustically pretagged fish in a natural marine environment 

      Ferter, Keno; Hartmann, Klaas; Kleiven, Alf Ring; Moland, Even; Olsen, Esben Moland (Journal article; Peer reviewed, 2014-10-07)
      Studying the sublethal effects of catch-and-release (C&R) is challenging, as there are several potential sources of bias. For example, if behavioural alterations immediately after the release event are to be studied, ...
    • The comeback of Atlantic bluefin tuna (Thunnus thynnus) to Norwegian waters 

      Nøttestad, Leif; Boge, Erling; Ferter, Keno (Peer reviewed; Journal article, 2020)
      We document that Atlantic bluefin tuna (BFT) began making a comeback from 2012 onwards into Norwegian waters, after several decades of absence, in parallel with an overall increased abundance recorded for eastern BFT. This ...
    • Development and evaluation of dynamic catch control devices in the demersal seine fisheries for cod (Gadus morhua) 

      Ingólfsson, Ólafur Arnar; Humborstad, Odd Børre; Ferter, Keno; Rosen, Shale (Peer reviewed; Journal article, 2021)
    • Digital fisheries data in the Internet age: Emerging tools for research and monitoring using online data in recreational fisheries 

      Lennox, Robert; Sbragaglia, Valerio; Vollset, Knut; Sortland, Lene K.; McClenachan, Loren; Jarić, Ivan; Guckian, Meaghan L.; Ferter, Keno; Danylchuk, Andy J.; Cooke, Steven J.; Arlinghaus, Robert; Twardek, William M. (Peer reviewed; Journal article, 2022)
      Recreational fisheries are diverse in scale, scope, and participation worldwide, constituting an important ecosystem service of marine and freshwater ecosystems. Management of these socio-ecological systems is challenged ...
    • Dive to survive: effects of capture depth on barotraumaand post-release survival of Atlantic cod (Gadus morhua)in recreational fisheries 

      Ferter, Keno; Weltersbach, Marc Simon; Humborstad, Odd Børre; Fjelldal, Per Gunnar; Sambraus, Florian; Strehlow, Harry Vincent; Vølstad, Jon Helge (Journal article; Peer reviewed, 2015-06-04)
      Atlantic cod (Gadus morhua) caught in recreational fisheries are commonly released, often with barotrauma after rapid decompression. Mouth-hooked, non-bleeding cod kept in a floating net pen showed mortalities ≥40% when ...
    • Estimating and mitigating post-release mortality of European eel by combining citizen science with a catch-and-release angling experiment 

      Weltersbach, Marc Simon; Strehlow, Harry Vincent; Ferter, Keno; Klefoth, Thomas; de Graaf, Martin; Dorow, Malte (Journal article; Peer reviewed, 2018)
      Several anguillid eel species have experienced severe population declines over the past decades, particularly the European eel (Anguilla anguilla), which is listed as critically endangered by the International Union for ...
    • First Assessment of the Impacts of the COVID-19 Pandemic on Global Marine Recreational Fisheries 

      Pita, Pablo; Ainsworth, Gillian B.; Alba, Bernardino; Anderson, Antônio B.; Antelo, Manel; Alós, Josep; Artetxe, Iñaki; Baudrier, Jérôme; Castro, José J.; Chicharro, Belén; Erzini, Karim; Ferter, Keno; Freitas, Mafalda; García-de-la-Fuente, Laura; García-Charton, José A.; Giménez-Casalduero, María; Grau, Antoni M.; Diogo, Hugo; Gordoa, Ana; Henriques, Filipe; Hyder, Kieran; Jiménez-Alvarado, David; Karachle, Paraskevi K.; Lloret, Josep; Laporta, Martin; Lejk, Adam M.; Dedeu, Arnau L.; Martín-Sosa, Pablo; Martínez, Lllibori; Mira, Antoni M.; Morales-Nin, Beatriz; Mugerza, Estanis; Olesen, Hans J.; Papadopoulos, Anastasios; Pontes, João; Pascual-Fernández, José J.; Purroy, Ariadna; Ramires, Milena; Rangel, Mafalda; Reis-Filho, José Amorim; Sánchez-Lizaso, Jose L.; Sandoval, Virginia; Sbragaglia, Valerio; Silva, Luis; Skov, Christian; Sola, Iván; Strehlow, Harry V.; Torres, María A.; Ustups, Didzis; van der Hammen, Tessa; Veiga, Pedro; Venerus, Leonardo A.; Verleye, Thomas; Villasante, Sebastián; Weltersbach, Marc Simon; Zarauz, Lucía (Peer reviewed; Journal article, 2021)
      This work is the result of an international research effort to determine the main impacts of the COVID-19 pandemic on marine recreational fishing. Changes were assessed on (1) access to fishing, derived from lockdowns and ...
    • Hook shedding and post-release fate of deep-hooked European eel 

      Weltersbach, Marc Simon; Ferter, Keno; Sambraus, Florian; Strehlow, Harry Vincent (Journal article; Peer reviewed, 2016-05-02)
      The European eel (Anguilla anguilla) is a commercially and recreationally important fishery target species. In the last decades, the eel has experienced dramatic stock declines and has been listed as critically endangered. ...
    • Hummerfisket 2017 og 2018: Innsats og fangst 

      Kleiven, Alf Ring; Lyle, Jeremy; Ferter, Keno; Espeland, Sigurd Heiberg; Kleiven, Portia Joy Nillos; Christensen, Lene; Vølstad, Jon Helge (Rapport fra havforskningen;2019 - 39, Research report, 2019)
      I 2017 ble det innført obligatorisk påmelding til hummerfisket for både fritidsfiskere og yrkesfiskere. Dette har lagt grunnlaget for muligheten til å beregne total innsats og fangst av hummer i Norge. Etter hummersesongen ...
    • Integrating complementary survey methods to estimate catches in Norway’s complex marine recreational hook-and-line fishery 

      Ferter, Keno; Otterå, Håkon Magne; Christman, Mary C.; Kleiven, Alf Ring; Weltersbach, Marc Simon; Gundersen, Sofie; Djønne, Christine; Bjelland, Otte; Hartill, Bruce; Lyle, Jeremy; Hyder, Kieran; Borch, Trude Kristin; Vølstad, Jon Helge (Peer reviewed; Journal article, 2022)
      Marine recreational fishing is popular in Norway, but current estimates of the catches by resident and tourist anglers are lacking due to several challenges, in particular Norway’s long and intricate coastline with no ...
    • Post-release effects of catch and release angling for sea trout: Mortality, growth and wound healing 

      Skov, Christian Egander; Ferter, Keno; Jepsen, Niels; Pedersen, Lars-Flemming; Lewin, Wolf-Christian; Gundelund, Casper; Weltersbach, Marc Simon (Peer reviewed; Journal article, 2023)
      Sea trout (anadromous brown trout, Salmo trutta L.) is a popular recreational angling target species in the Baltic Sea region and beyond. Across countries, a substantial part of angled sea trout is released after capture ...
    • Recreational sea fishing in Europe in a global context—Participation rates, fishing effort, expenditure, and implications for monitoring and assessment 

      Kieran, Hyder; Weltersbach, Marc Simon; Armstrong, Mark; Ferter, Keno; Townhill, Bryony; Ahvonen, Anssi; Arlinghaus, Robert; Baikov, Andrei; Bellanger, Manuel; Birzaks, Janis; Borch, Trude Kristin; Cambie, Giulia; de Graaf, Martin; Diogo, Hugo M C; Dziemian, Lukasz; Gordoa, Ana; Grzebielec, Ryszard; Hartill, Bruce; Kagervall, Anders; Kapiris, Kostas; Karlsson, Martin; Kleiven, Alf Ring; Lejk, Adam M; Levrel, Harold; Lovell, Sabrina; Lyle, Jeremy; Miolanen, Pentti; Monkman, Graham; Morales-Nin, Beatriz; Mugerza, Estanis; Martinez, Roi; O'Reilly, Paul F; Olesen, Hans Jakob; Papadopoulos, Anastasios; Pita, Pablo; Radford, Zachary; Radtke, Krzysztof; Roche, William; Rocklin, Delphine; Ruiz, Jon; Scougal, Callum; Silvestri, Roberto; Skov, Christian; Steinback, Scott; Sundeløf, Andreas; Svagzdys, Arvydas; Turnbull, David; van der Hammen, Tessa; van Voorhees, David; van Winsen, Frankwin; Verleye, Thomas J; Veiga, Pedro; Vølstad, Jon Helge; Zarauz, Lucia; Zolubas, Tomas; Strehlow, Harry Vincent (Journal article; Peer reviewed, 2017)
      Marine recreational fishing (MRF) is a high-participation activity with large economic value and social benefits globally, and it impacts on some fish stocks. Although reporting MRF catches is a European Union legislative ...
    • Targeted risk assessment of mercury exposure of recreational fishers: Are nephrops fishers in Norway at risk? 

      Wiech, Martin; Djønne, Christine; Kolding, Jeppe; Kjellevold, Marian; Ferter, Keno (Peer reviewed; Journal article, 2021)
      Recreational fishers often consume their catch, which may expose them to environmental contaminants. However, targeted risk assessment for exceeding the tolerable weekly intake (TWI) of a specific contaminant is often ...
    • The impact of marine recreational fishing on key fish stocks in European waters 

      Radford, Zachary; Hyder, Kieran; Zarauz, Lucía; Mugerza, Estanis; Ferter, Keno; Prellezo, Raul; Strehlow, Harry Vincent; Townhill, Bryony; Lewin, Wolf-Christian; Weltersbach, Marc Simon (Journal article; Peer reviewed, 2018)
      Marine recreational fishing (MRF) has been shown to substantially contribute to fishing mortality of marine fish. However, European MRF catches are only quantified for a small number of stocks, so it is unclear whether a ...
    • Towards more efficient longline fisheries: fish feeding behaviour, bait characteristics and development of alternative baits 

      Løkkeborg, Svein; Siikavuopio, Sten Ivar; Humborstad, Odd Børre; Utne-Palm, Anne Christine; Ferter, Keno (Journal article; Peer reviewed, 2014-06-14)
      Better knowledge of food search behavior in fish is essential for studies that aim to improve longline fishing, particularly through bait development. This review provides an overview of our understanding of how fish detect ...