Jon Helge Vølstad

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Forskningssjef
Telefon: 46929039
Avdeling: Fiskeridynamikk

Publikasjoner

Vitenskapelige artikler (NVI)

2018

Recreational sea fishing in Europe in a global context—Participation rates, fishing effort, expenditure, and implications for monitoring and assessment

Hyder Kieran, Marc Simon Weltersbach, Mark Armstrong, Keno Ferter, Bryony Townhill, Anssi Ahvonen, Robert Arlinghaus, Andrei Baikov, Manuel Bellanger, Janis Birzaks, Trude Kristin Borch, Giulia Cambie, Martin de Graaf, Hugo M C Diogo, Lukasz Dziemian, Ana Gordoa, Ryszard Grzebielec, Bruce Hartill, Anders Kagervall, Kostas Kapiris, Martin Karlsson, Alf Ring Kleiven, Adam M Lejk, Harold Levrel, Sabrina Lovell, Jeremy Lyle, Pentti Miolanen, Graham Monkman, Beatriz Morales-Nin, Estanis Mugerza, Roi Martinez, Paul F O'Reilly, Hans Jakob Olesen, Anastasios Papadopoulos, Pablo Pita, Zachary Radford, Krzysztof Radtke, William Roche, Delphine Rocklin, Jon Ruiz, Callum Scougal, Roberto Silvestri, Christian Skov, Scott Steinback, Andreas Sundeløf, Arvydas Svagzdys, David Turnbull, Tessa van der Hammen, David van Voorhees, Frankwin van Winsen, Thomas J Verleye, Pedro Veiga, Jon Helge Vølstad, Lucia Zarauz, Tomas Zolubas, Harry Vincent Strehlow
Fish and Fisheries 19 p. 225-243
2016

Quantifying changes in abundance, biomass, and spatial distribution of Northeast Atlantic mackerel (Scomber scombrus) in the Nordic seas from 2007 to 2014

Leif Nøttestad, Kjell Rong Utne, Gudmundur Jóhann Óskarsson, Sigurdur Jónsson, Jan Arge Jacobsen, Øyvind Tangen, Valentine Anthonypillai, Sondre Aanes, Jon Helge Vølstad, Matteo Bernasconi, Høgni Debes, Leon Smith, Sveinn Sveinbjörnsson, Jens Christian Holst, Teunis Jansen, Aril Slotte
ICES Journal of Marine Science 73 p. 359-373
2015

A direct estimate of the Calanus finmarchicus biomass in the Norwegian Sea

Solfrid S. Hjøllo, Morten D Skogen, Cecilie Hanse, Espen Bagøien, Jon Helge Vølstad
ICES CM 2015/S:14
2015

Communicating uncertainty in quota advice: a case for confidence interval harvest control rules (CI-HCRs) for fisheries

Dorothy Jane Dankel, Jon Helge Vølstad, Sondre Aanes
Canadian Journal of Fisheries and Aquatic Sciences 73 p. 309-317
2015

Assessing incidental bycatch of seabirds in Norwegian coastal commercial fisheries: Empirical and methodological lessons

Kirstin Fangel, Øystein Aas, Jon Helge Vølstad, Kim Magnus Bærum, Signe Christensen-Dalsgaard, Kjell Harald Nedreaas, Modolf Overvik, Line Camilla Wold, Tycho Anker-Nilssen
Global Ecology and Conservation 4 p. 127-136
2015

Efficient statistical estimators and sampling strategies for estimating the age composition of fish

Sondre Aanes, Jon Helge Vølstad
Canadian Journal of Fisheries and Aquatic Sciences 72 p. 938-953
2015

Precision in estimates of density and biomass of Norwegian spring-spawning herring based on acoustic surveys

Erling Kåre Stenevik, Jon Helge Vølstad, Åge Sigurd Høines, Sondre Aanes, Guðmundur Jóhann Óskarsson, Jan Arge Jacobsen, Øyvind Tangen
Marine Biology Research 11 p. 449-461
2015

Dive to survive: effects of capture depth on barotrauma and post-release survival of Atlantic cod (Gadus morhua) in recreational fisheries

Keno Ferter, Marc Simon Weltersbach, Odd Børre Humborstad, Per Gunnar Fjelldal, Florian Sambraus, Harry Vincent Strehlow, Jon Helge Vølstad
ICES Journal of Marine Science 72 p. 2467-2481
2014

Tendencias de la CPUE de Hilsa kelee y Thryssa vitrirostris explotadas por la pesquería artesanal en Mozambique a partir del muestreo de las capturas en puerto

Massimiliano Cardinale, Osvaldo Chacate, Michele Casini, Isabel Chaúca, Jon Helge Vølstad
Scientia Marina 78 p. 55-64
2014

CPUE trends of Hilsa kelee and Thryssa vitrirostris exploited by the artisanal finfish fisheries in Mozambique derived from an on-shore sampling of catches by trip

Massimiliano Cardinale, Osvaldo Chacate, Michele Casini, Isabel Chauca, Jon Helge Vølstad
Scientia Marina 78 p. 55-64
2014

Probability-based survey to monitor catch and effort in coastal small-scale fisheries

Jon Helge Vølstad, Paula Santana Afonso, Baloi Ana Paula, de Premegio Narci, Jørgen Rajan Meisfjord, Massimiliano Cardinale
Fisheries Research 151 p. 39-46
2013

Unexpectedly high catch-and-release rates in European marine recreational fisheries: implications for science and management

Keno Ferter, Marc Simon Weltersbach, Harry Vincent Strehlow, Jon Helge Vølstad, Josep Alós, Robert Arlinghaus, Mike Armstrong, Malte Dorow, Martin de Graaf, Tessa van der Hammen, Kieran Hyder, Harold Levrel, Anton Paulrud, Krzysztof Radtke, Delphine Rocklin, Claus Reedtz Sparrevohn, Pedro Veiga
ICES Journal of Marine Science 70 p. 1319-1329
2013

Application of a Demographic Model for Evaluating Proposed Oyster-Restoration Actions in Chesapeake Bay

Edward D. Weber, Jon Helge Vølstad, Mary C. Christman, Danny Lewis, Jodi R. Dew-Baxter
Human and Ecological Risk Assessment 19
2013

Angler behaviour and implications for management - catch-and-release among marine angling tourists in Norway

Keno Ferter, Trude Kristin Borch, Jeppe Kolding, Jon Helge Vølstad
Fisheries Management and Ecology 20 p. 137-147
2012

Total Catch of a Red-Listed Marine Species Is an Order of Magnitude Higher than Official Data

Alf Ring Kleiven, Esben Moland Olsen, Jon Helge Vølstad
PLoS ONE 7
2012

A Bayesian modelling framework for the estimation of catch-at-age of commercially harvested fish species

David Hirst, Geir Olve Storvik, Hanne Rognebakke, Magne Aldrin, Sondre Aanes, Jon Helge Vølstad
Canadian journal of fisheries and aquatic sciences. Supplem ent = Journ al canadien des sciences halieutiques et aquati qu 69 p. 2064-2076
2011

Effects of Fishing Tourism in a Coastal Municipality: a Case Study from Risor, Norway

Erlend Moksness, Jakob Gjøsæter, Guillame Lagaillarde, Eirik Inge Mikkelsen, Esben Moland Olsen, Håkan Sandersen, Jon Helge Vølstad
Ecology & society 16
2011

Estimating Recreational and Commercial Fishing Effort for European Lobster Homarus gammarus by Strip Transect Sampling

Alf Ring Kleiven, Esben Moland Olsen, Jon Helge Vølstad
Marine and Coastal Fisheries 3 p. 383-393
2011

Probability-based surveying using self-sampling to estimate catch and effort in Norway’s coastal tourist fishery

Jon Helge Vølstad, Knut Korsbrekke, Kjell Harald Nedreaas, Merete Nilsen, Gro Nesheim Nilsson, Michael Robert Pennington, Sam Subbey, Rupert Wienerroither
ICES Journal of Marine Science 68 p. 1785-1791
2009

Application of the Probability-based Maryland Biological Stream Survey to the State’s Assessment of Water Quality Standards

Mark Southerland, Jon Helge Vølstad, Edward D. Weber, Ron J. Klauda, C.A. Poukish, M.C. Rowe
Environmental Monitoring & Assessment 150 p. 65-73
2009

Assessing ecological integrity for impaired waters decisions in Chesapeake Bay, USA

Roberto Llanso, Daniel M. Dauer, Jon Helge Vølstad
Marine Pollution Bulletin 59 p. 48-53
2009

Assessing benthic community condition in Chesapeake Bay: does the use of different benthic indices matter?

Roberto Llanso, Jon Helge Vølstad, Daniel M. Dauer, Jodie R. Dew
Environmental Monitoring & Assessment 150 p. 119-127
2008

The Value of Applying Commercial Fisher’s Experience with Designed Surveys to Identify Characteristics of Essential Fish Habitat for Adult Summer Flounder (Paralichthys dentatus

Ward Jr. Slacum, Jon Helge Vølstad, Edward D. Weber, William A. Richkus, Robert J. Diaz, C.O. Tallent
North American Journal of Fisheries Management 28 p. 710-721
2008

Estimation of annual mortality rates for eastern oysters (Crassostrea virginica) in Chesapeake Bay based on box counts and application of those rates for projection of population growth of both C. virginica and the Asian oyster (C. ariakensis)

Jon Helge Vølstad, Jodie R. Dew, Mitch Tarnowski
Journal of Shellfish Research 27 p. 1-9
2006

Comparing and combining effort and catch estimates from aerial-access designs, with applications to a large-scale angler survey in the Delaware River

Jon Helge Vølstad, Ken H. Pollock, William A. Richkus
North American Journal of Fisheries Management 26 p. 727-741
2004

Streamside salamanders as indicators of stream quality in Maryland

Mark Southerland, R. Jung, D.P. Baxter, I.C. Chellman, G. Mercurio, Jon Helge Vølstad
Applied Herpetology 2 p. 1-24
2003

Application of the benthic index of biotic integrity to environmental monitoring in Chesapeake Bay

Roberto Llanso, Daniel M. Dauer, Jon Helge Vølstad, Lisa C. Scott
Environmental Monitoring & Assessment 81 p. 163-174
2003

Abundance and exploitation rate of the blue crab (Callinectes sapidus) in Chesapeake Bay

Alexei F. Sharov, Jon Helge Vølstad, G.R. Davis, B.K. Davis, R.N. Lipcius, M.M. Montane
Bulletin of marine science 72 p. 543-565
2003

Combining biological indicators of watershed condition from multiple sampling programs - A case study from Maryland, USA

Jon Helge Vølstad, N.E. Neerchal, N.E. Roth, Mark Southerland
Ecological Indicators 3 p. 13-25
2003

Using environmental stressor information to predict the ecological status of Maryland non-tidal streams as measured by biological indicators

Jon Helge Vølstad, N.E. Roth, G. Mercurio, Mark Southerland, D. Strebel
Environmental Monitoring & Assessment 84 p. 219-242
2000

A method for estimating dredge catching efficiency for blue crabs, Callinectes sapidus, in Chesapeake Bay

Jon Helge Vølstad, Alexei F. Sharov, G. Davis, B. Daugherty
Fishery Bulletin 98 p. 410-420
1997

Estimating fish abundance in stream surveys by using double-pass removal sampling

D.G. Heimbuch, H.T. Wilson, S.B. Weisberg, Jon Helge Vølstad, P.F. Kazyak
Transactions of the American Fisheries Society 126 p. 795-803
1997

The Molluscan Fisheries and Culture of Norway

Øyvind Strand, Jon Helge Vølstad
U.S. Dep. Commer., NOAA Tech. Rep. NMFS 129 p. 7-24
1995

Cost-efficient survey designs for estimating the food consumption by fish

Bjarte Bogstad, Michael Robert Pennington, Jon Helge Vølstad
Fisheries Research 23 p. 37-46
1994

Assessing the effect of intra-haul correlation and variable density on estimates of population characteristics from trawl surveys

Michael Robert Pennington, Jon Helge Vølstad
Biometrics 50 p. 725-732
1993

Analysis of spatial variability of George Bank haddock (Melanogrammus aeglefinus) from trawl survey data using a linear regression model with spatial interaction

Tom Pollacheck, Jon Helge Vølstad
ICES Journal of Marine Science 50 p. 1-8
1991

Optimum size of sampling unit for estimating the density of marine populations

Michael Robert Pennington, Jon Helge Vølstad
Biometrics 47 p. 717-723
1990

Effect of tow duration on length composition of trawl catches

Olav Rune Godø, Michael Robert Pennington, Jon Helge Vølstad
Fisheries Research 9 p. 165-179

Poster

2013

Fishery investigations in Arctic waters with the new Norwegian ice-going research vessel

Asgeir Aglen, Bjarte Bogstad, Harald Gjøsæter, Knut Sunnanå, Jan Henry Sundet, Ingolf Røttingen, Jon Helge Vølstad, Ole Arve Misund

Vitenskapelige foredrag

2018

Country update - Marine recreational fishery in Norway 2018

Vølstad, Jon Helge
ICES WGRFS 2018 (Nei)

Kapitler og bøker

2013

Knowledge issues in ICZM and EBM applied on small geographic scales: Lessons from a case study in Risør, Norway

Håkan Sandersen, Eirik Inge Mikkelsen, Erlend Moksness, Jon Helge Vølstad
2012

Store urapporterte fangster i hummerfisket

Alf Ring Kleiven, Jon Helge Vølstad, Keno Ferter, Esben Moland Olsen
p. 79-81
2011

Sokolov, Konstantin M. and Jon Helge Vølstad. Marine Tourism: Chapter 13.3. In: T. Jakobsen and V. K. Ozhigin (eds.), The Barents Sea: Ecosystem, Resources, Management. pp 678-685. Tapir Akademisk Forlag 2011 (ISBN 978-82-519-2545-7)

Vølstad, Jon Helge
2011

Bottom trawl surveys: In: T. Jakobsen and V. K. Ozhigin (eds.), The Barents Sea: Ecosystem, Resources, Management. pp 570-583

Michael Robert Pennington, S. Shevelev, Jon Helge Vølstad, Odd Nakken

Rapporter og avhandlinger

2015

Catch-and-release of Atlantic cod (Gadus morhua) in recreational fisheries

Keno Ferter, Jon Helge Vølstad, Jeppe Kolding, Odd Børre Humborstad
2013

ICES. 2013. Report of the second Workshop on Practical Implementation of Statistical Sound Catch Sampling Programmes, 6 - 9 November 2012, ICES Copenhagen. ICES CM 2012 / ACOM:54 71 pp. (Lead authors: Jon Helge Vølstad, Mike Armstrong, Michael Pennington, and Hans Gerritsen)

Jon Helge Vølstad, Mike Armstrong, Michael Robert Pennington, Hans Gerritsen
2012

ICES. 2012. Report of the Working Group on Practical Implementation of Statistical Sound Catch Sampling Programmes, 8 - 10 November 2011, Bilbao, Spain. ICES CM 2011 / ACOM:52. 56 pp. (Lead authors: Jon Helge Vølstad, Mike Armstrong, and Michael Pennington)

Jon Helge Vølstad, Mike Armstrong, Michael Robert Pennington
2011

Hva betyr fisketurismen for de lokale fiskebestandene langs kysten? Havforskningsrapporten 2011. Fisken og Havet, Særnummer 1-2011

Jon Helge Vølstad, Keno Ferter, Marie Hauge, Kjell Harald Nedreaas, Merete Vik Ottesen
2011

Evaluering av datagrunnlaget 2006–2009 for estimering av andel rømt oppdrettslaksi gytebestanden i norske elver Forslag til forbedringer i utvalgsmetoder og prøvetakingsmetodikk

Ove Tommy Skilbrei, Jon Helge Vølstad, Bøthun Gjermund, Svåsand Terje
2011

Evaluation of the Norwegian Reference Fleet A Report to the Institute of Marine Research by an International Committee

Ray Bowering, Maiken Bjørkan, Peter Gullestad, Elling Lorentsen, Storr-Paulsen Marie, Geoff Tingley, Jon Helge Vølstad
2010

ICES.2010. Report of the Workshop on methods to evaluate and estimate the precision of fisheries data used for assessment (WKPRECISE),11 September 2009, Copenhagen, Denmark.ICES CM 2009/ACOM:40.43pp

Jon Helge Vølstad, Sondre Aanes
2010

ICES.2010. Report to the Joint ICES-STECF Workshop on methods for merging metiers for fishery based sampling (WKMERGE)– 22 January 2010,Copenhagen,Denmark, ICES CM 2010/ACOM:40.94 pp

Jon Helge Vølstad, Michael Armstrong
2009

Kartlegging av turistfiske [Survey of catch and effort in the tourist fishery.]

Jon Helge Vølstad, Merete Nilsen
2007

Recommendations for reducing vessel selection bias in U.S. observer programs. In: McVea TA, Kennelly SJ, eds. Proceedings of the 5th International Fisheries Observer Conference – 15-18 May 2007, Victoria, British Columbia, Canada. Cronulla [Australia]: NSW DPI, Cronulla Fisheries Research Centre of Excellence; p 250-251

M.J. Fogarty, D.C. Hansford, Jon Helge Vølstad
2007

A Demographic Model of Oyster Populations in the Chesapeake Bay to Evaluate Proposed Oyster-Restoration Alternatives

Jon Helge Vølstad, Mary C. Christman, Danny Lewis, Edward D. Weber, Jodie R. Dew
2006

“Proof of Concept for Integrating Bioassessment Results from Three State Probabilistic Monitoring Programs”. Report prepared for EPA under Contract No. 50-CMAA-900065. EPA/903/R-05/003. U.S. Environmental Protection Agency, Office of Environmental Information and Mid-Atlantic Integrated Assessment Program, Region 3, Ft. Meade, MD. [This document can be downloaded from EPA’s website for Biological Indicators and Watershed Health: http://www.epa.gov/bioindicators]

Mark Southerland, Jon Helge Vølstad, L. Erb, Edward D. Weber, Ginny Rogers
2006

Linking larval transport and fisheries demographic models to study the influence of environmental variability and larval behavior on juvenile recruitment to oyster populations. ICES CM 2006 O:11, 13 pp

Elizabeth North, Jon Helge Vølstad, Mary C. Christman, R.R. Hood, L Zhong, Z Schlag, T.F. Gross, Danny Lewis, Jodie R. Dew, M Li, V.S. Kennedy
2005

Maryland Biological Stream Survey 2000-2004. Volume 6: Laboratory, Field, and Analytical methods. Publication number DNR 12-0305-0108. Maryland Department of Natural Resources, Monitoring and Assessment Division, Annapolis, Maryland, U.S.A

Nancy Roth, Jon Helge Vølstad, L. Erb, Edward D. Weber
2005

Design and Implementation of a Survey of Commercial Blue Crab Effort in the Maryland Portion of the Chesapeake Bay. Final Report to Maryland Department of Natural Resources, Fisheries Division, Annapolis, Maryland, U.S.A

Mary C. Christman, Jon Helge Vølstad
2004

Levels of Biological Organization, Data Management and Analysis: 1. Carolinian Province. Prepared by Versar, Inc. for Unites States Environmental Protection Agency, Office of Research and Development, National Center for Environmental Assessment, Cincinnati, Ohio EPA Task Order 3C-R351-NBLX

Roberto Llanso, Jon Helge Vølstad, Mark Southerland
1998

Report on the workshop on the statistical design of bottom trawl and acoustic surveys with special reference to surveys off Namibia and the West coast of South Africa, Swakopmund, Namibia, 27 april to 8 may 1998 : including hake surveys by NORAD's R/V Dr. Fridtjof Nansen and SFRI's R/V Africana and pilchard surveys by NatMIRC' R/V Welwitschia 1998. Organized by FAO/DANIDA, NORAD and NatMIRC FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 1998

Hans Lassen, Rob Leslie, Tore Strømme, Berndt Vaske, Jon Helge Vølstad
1997

Analytical and Statistical Review of Procedures for Collection and Analysis of Commercial Data Used for Management and Assessment of Groundfish Stocks in the U.S. Exclusive Economic Zone Off Alaska. Prepared for the U.S. Department of Commerce, National Marine Fisheries Service, Alaska Fisheries Science Center, Seattle, Washington

Jon Helge Vølstad, William A. Richkus, Steve Gaurin, Roberto Easton
1994

University of Maryland Cooperative Analysis of Chesapeake Bay Recreational Finfish Populations: Evaluation of Length-Based Stock Assessment Techniques. University of Maryland Ref. No. [UMCEES] CBL 94-100

B.J. Rothschild, F.J. Freise, R.G. McGarvey, Jon Helge Vølstad
1994

Abundance estimation and population dynamics of the blue crab in the Chesapeake Bay. Final Report to the Maryland Department of Natural Resources, the Chesapeake Bay Stock Assessment Committee, and the National Oceanic and Atmospheric Administration (NOAA)

Jon Helge Vølstad, B.J. Rothschild, T. Maurer
1992

Using acoustics to improve precision of bottom trawl indices of abundance. ICES C.M. 1991/D:13

Egil Ona, Michael Robert Pennington, Jon Helge Vølstad
1990

Some aspects of the design and analysis of marine abundance surveys.Dissertation, Dr.Scient

Vølstad, Jon Helge

Faglige foredrag

2017

Hvilken nytte kan Havforskningen ha av de fangst-data som samles inn, og hvordan ser de for seg å samarbeide med næringa?

Vølstad, Jon Helge
2017

Kartlegging av fritidsfiske i Norge – Et tverrfaglig prosjekt med fokus på bærekraft og samfunnsverdier.

Keno Ferter, Jon Helge Vølstad
2017

Maximizing effective sample size for estimating age-composition of annual catch in a commercial fishery - A case study from Norway.

Vølstad, Jon Helge
2017

Developing a sampling scheme to evaluate Norwegian marine recreational fisheries.

Vølstad, Jon Helge
2017

Kartlegging av Fritidsfiske i Norge

Vølstad, Jon Helge
2016

Modeling length distribution by commercial size category to estimate species catch length composition for stock assessment.

Manuela Azevedo, Cristina Silva, Jon Helge Vølstad
2016

Modeling length distribution by commercial size category to estimate species catch length composition for stock assessment. ICES CM 2016/O:170

Manuela Azevedo, Cristina Silva, Jon Helge Vølstad
2016

Self-sampling of the Norwegian Springs Spawning Herring fishery – optimizing data collections to achieve sufficientprecision in stock assessment. ICES CM 2016/O:467 s

Sondre Aanes, Jon Helge Vølstad
2016

Developing a sampling scheme to evaluate Norwegian marine recreational fisheries - A case study from the Oslofjord

Keno Ferter, Alf Ring Kleiven, Jonathan Edward Colman, Thrond Oddvar Haugen, Stian Stensland, Harry Vincent Strehlow, Marc Simon Weltersbach, Jon Helge Vølstad
2015

A direct estimate of the Calanus finmarchicus biomass in the Norwegian Sea

Morten D. Skogen, Solfrid Sætre Hjøllo, Cecilie Hansen, Espen Bagøien, Jon Helge Vølstad
2015

Increased biomass indices, spatial distribution and density of Northeast Atlantic (NEA) mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2014

Leif Nøttestad, Kjell Rong Utne, Øyvind Tangen, Valentine Anthonypillai, Sondre Aanes, Jon Helge Vølstad, Matteo Bernasconi, Jens Christian Holst, Aril Slotte
2014

"Decision-making under uncertainty: The case for confidence interval harvest control rules"

Dorothy Jane Dankel, Sondre Aanes, Jon Helge Vølstad
2014

Barotrauma and recovery of Atlantic cod (Gadus morhua) after rapid decompression: combining field observations and X-ray technology

Keno Ferter, Simon Weltersbach, Odd Børre Humborstad, Per Gunnar Fjelldal, Florian Sambraus, Harry Vincent Strehlow, Jon Helge Vølstad
2013

Assessing adequate level of sampling in monitoring programs to support stock assessment and estimation of biological reference points for Northeast Arctic Cod (Paper J:07)

Sondre Aanes, Sam Subbey, Jon Helge Vølstad
2013

Uncertainty in estimates of density and biomass of Norwegian spring spawning herring based on combined acoustic and trawl surveys

Jon Helge Vølstad, Sondre Aanes, Åge Sigurd Høines, Erling Kåre Stenevik, Øyvind Tangen
2013

Efficient statistical estimators and subsampling strategies to quantify the age composition of fish (Paper J:08)

Sondre Aanes, Jon Helge Vølstad
2013

Bycatch of seabirds in Norwegian coastal fisheries – comparison of estimation methods (Paper J:09)

Kirstin Fangel, Jon Helge Vølstad, Øystein Aas, Line Camilla Wold, Kjell Harald Nedreaas, Signe Christensen-Dalsgaard, Tycho Anker-Nilssen, Modulf Overvik
2013

How can research support managment decisions to balance suistainable tourism and commercial fishing in Norway's coastal zone?

Vølstad, Jon Helge
2013

Keynote Address. Survey sampling of fish and fisheries - how much is enough?

Vølstad, Jon Helge
2011

Sustainable Sea Angling Tourism – is it advisable from a marine researchers perspective?

Vølstad, Jon Helge
2010

A probability-based survey with the use of selfsampling to estimate catch and effort in Norways´s coastal tourist fishery

Vølstad, Jon Helge
2009

Evaluating the effects of uncertainty in estimated catch-at age and tuning indices on analytic assessment and quota recommendations for fish stocks

Sondre Aanes, Jon Helge Vølstad
2009

Recreational Fisheries in Norway - Tourist Recreational Fishery in Norway

Vølstad, Jon Helge
2009

Recreational Fisheries in USA - Delaware River Survey

Vølstad, Jon Helge
2008

Probability-based survey techniques for monitoring catch and effort in the coastal small scale fisheries in Mozambique

Jon Helge Vølstad, Jørgen Rajan Meisfjord, Paula Santana Afonso, Paula S. Baloi, A.P. de Premegi
2008

Kartlegging av turistfisket langs norskekysten

Jon Helge Vølstad, Merete Nilsen, Kjell Harald Nedreaas
2008

Hvor mye fisk tar fisketuristene? Er fisketurisme bærekraftig?

Vølstad, Jon Helge
2005

Comparing and combining effort and catch estimates from aerial-access designs with applications to a large-scale angler survey in the Delaware River

Vølstad, Jon Helge
2004

A probability-based monitoring program for assessing status and trends in the biological condition of Maryland non-tidal streams at multiple spatial scales

Jon Helge Vølstad, Mark Southerland, Nancy Roth, Paul Kazyak, Ronald J. Klauda

Annet tidsskriftbidrag

2012

Et bærekraftig og etisk turistfiske

Trude Kristin Borch, Keno Ferter, Audun H. Rikardsen, Jon Helge Vølstad
Fiskeribladet
2007

Stock-recruit relationships for Crassostrea virginica and C. ariakensis in Chesapeake Bay developed for a demographic oyster population model

Jon Helge Vølstad, Jodie R. Dew
Journal of Shellfish Research 25 p. 787-787

Mediebidrag

2011

http://www.nrk.no/video/emne/ Jon Helge Vølstad i Havforskningsinstituttet og Øyvind Fjeldseth

Vølstad, Jon Helge
 
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