Jon Helge Vølstad
Publikasjoner
Vitenskapelige artikler (NVI)
2023
Recruitment regime shifts and nonstationarity are widespread phenomena in harvestable stocks experiencing pronounced climate fluctuations
Fish and Fisheries
2023
Toward sustainable harvest strategies for marine fisheries that include recreational fishing
Fish and Fisheries
2022
A novel probabilistic survey method for at sea sampling in pelagic fisheries – the Norwegian catch sampling lottery
Fisheries Research
260
2022
Integrating complementary survey methods to estimate catches in Norway’s complex marine recreational hook-and-line fishery
ICES Journal of Marine Science
2021
Expert opinion on using angler Smartphone apps to inform marine fisheries management: status, prospects, and needs
ICES Journal of Marine Science
78
p. 967-978
2021
A simulation approach to assessing bias in a fisheries self-sampling programme
ICES Journal of Marine Science
2021
Onshore biological sampling of landings by species and size category within auction sites can be more efficient than trip-based concurrent sampling
ICES Journal of Marine Science
78
p. 2757-2773
2021
Expert opinion on using angler Smartphone apps to inform marine fisheries management: status, prospects, and needs
ICES Journal of Marine Science, fsaa243
2021
REVIEW OF THE REVISION OF GBYP AERIAL SURVEY DESIGN, IMPLEMENTATION AND STATISTICAL ANALYSES (ICCAT GBYP 12/2020)OF THE ATLANTIC-WIDE RESEARCH PROGRAMME FOR BLUEFIN TUNA (ICCAT GBYP Phase 10).
Collect. Vol. Sci. Pap. ICCAT, 77(2)
77(2)
p. 988-1005
2020
Assessing the impact of fisheries-related mortality of harbour porpoise (Phocoena phocoena) caused by incidental bycatch in the dynamic Norwegian gillnet fisheries
ICES Journal of Marine Science
77
p. 3039-3049
2020
Evaluation of sampling strategies for age determination of cod (Gadus morhua) sampled at the North Sea International Bottom Trawl Survey
ICES Journal of Marine Science
77
p. 859-869
2019
Field surveying of marine recreational fisheries in Norway using a novel spatial sampling frame reveals striking under-coverage of alternative sampling frames
ICES Journal of Marine Science
77
p. 2192-2205
2019
Spatial and temporal variations in seabird bycatch: Incidental bycatch in the Norwegian coastal gillnet-fishery
PLOS ONE
14
2018
Recreational sea fishing in Europe in a global context—Participation rates, fishing effort, expenditure, and implications for monitoring and assessment
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
ICES Journal of Marine Science
73
p. 359-373
2015
A direct estimate of the Calanus finmarchicus biomass in the Norwegian Sea
ICES CM 2015/S:14
2015
Communicating uncertainty in quota advice: a case for confidence interval harvest control rules (CI-HCRs) for fisheries
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
Global Ecology and Conservation
4
p. 127-136
2015
Efficient statistical estimators and sampling strategies for estimating the age composition of fish
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
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
ICES Journal of Marine Science
72
p. 2467-2481
2014
The Barents Sea Ecosystem Survey: the way forward to monitor the ecosystem
IMR/PINRO Joint Report Series
4
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
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
Scientia Marina
78
p. 55-64
2014
Probability-based survey to monitor catch and effort in coastal small-scale fisheries
Fisheries Research
151
p. 39-46
2013
Unexpectedly high catch-and-release rates in European marine recreational fisheries: implications for science and management
ICES Journal of Marine Science
70
p. 1319-1329
2013
Application of a Demographic Model for Evaluating Proposed Oyster-Restoration Actions in Chesapeake Bay
Human and Ecological Risk Assessment
19
2013
Angler behaviour and implications for management - catch-and-release among marine angling tourists in Norway
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
PLOS ONE
7
2012
A Bayesian modelling framework for the estimation of catch-at-age of commercially harvested fish species
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
Ecology & society
16
2011
Estimating Recreational and Commercial Fishing Effort for European Lobster Homarus gammarus by Strip Transect Sampling
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
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
Environmental Monitoring & Assessment
150
p. 65-73
2009
Assessing ecological integrity for impaired waters decisions in Chesapeake Bay, USA
Marine Pollution Bulletin
59
p. 48-53
2009
Assessing benthic community condition in Chesapeake Bay: does the use of different benthic indices matter?
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
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)
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
North American Journal of Fisheries Management
26
p. 727-741
2004
Streamside salamanders as indicators of stream quality in Maryland
Applied Herpetology
2
p. 1-24
2003
Application of the benthic index of biotic integrity to environmental monitoring in Chesapeake Bay
Environmental Monitoring & Assessment
81
p. 163-174
2003
Abundance and exploitation rate of the blue crab (Callinectes sapidus) in Chesapeake Bay
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
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
Environmental Monitoring & Assessment
84
p. 219-242
2000
A method for estimating dredge catching efficiency for blue crabs, Callinectes sapidus, in Chesapeake Bay
Fishery Bulletin
98
p. 410-420
1997
Estimating fish abundance in stream surveys by using double-pass removal sampling
Transactions of the American Fisheries Society
126
p. 795-803
1997
The Molluscan Fisheries and Culture of Norway
U.S. Dep. Commer., NOAA Tech. Rep. NMFS
129
p. 7-24
1995
Cost-efficient survey designs for estimating the food consumption by fish
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
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
ICES Journal of Marine Science
50
p. 1-8
1991
Optimum size of sampling unit for estimating the density of marine populations
Biometrics
47
p. 717-723
1990
Effect of tow duration on length composition of trawl catches
Fisheries Research
9
p. 165-179
Annet tidsskriftbidrag
2012
Et bærekraftig og etisk turistfiske
Fiskeribladet
2007
Stock-recruit relationships for Crassostrea virginica and C. ariakensis in Chesapeake Bay developed for a demographic oyster population model
Journal of Shellfish Research
25
p. 787-787
Vitenskapelige foredrag
2018
Country update - Marine recreational fishery in Norway 2018
ICES WGRFS 2018
Faglige foredrag
2023
Bridging climate, biophysical and statistical models to identify key drivers of recruitment variability of fish stocks inhabiting different North-East Atlantic ecoregions
2021
Extent and potential impact of incidental bycatch of seabirds in Norwegian coastal gillnet-fisheries
2020
Assessing the impact of fisheries-related mortality of harbour porpoise(Phocoena phocoena) caused by incidental bycatch in the dynamic Norwegian gillnet fisheries.
ICES Journal of Marine Science
2019
Spatial and temporal variations in seabird bycatch: Incidental bycatch in the Norwegian coastal gillnet-fishery.
PlosOne
2018
Assessing representativeness and bias in Norwegian commercial catch sampling programs conducted in collaboration with the industry.
2018
Commercial marine fisheries i Norway: Towards science-based management in collaboration with industry– herring as an example (Key-note presentation).
2018
Marine Recreational Fishery in Norway: A framework for science-based management of recreational fisheries in Norway
2017
Hvilken nytte kan Havforskningen ha av de fangst-data som samles inn, og hvordan ser de for seg å samarbeide med næringa?
2017
Kartlegging av fritidsfiske i Norge – Et tverrfaglig prosjekt med fokus på bærekraft og samfunnsverdier.
2017
Maximizing effective sample size for estimating age-composition of annual catch in a commercial fishery - A case study from Norway.
2017
Developing a sampling scheme to evaluate Norwegian marine recreational fisheries.
2017
Kartlegging av Fritidsfiske i Norge
2016
Modeling length distribution by commercial size category to estimate species catch length composition for stock assessment.
2016
Modeling length distribution by commercial size category to estimate species catch length composition for stock assessment. ICES CM 2016/O:170
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
2016
Developing a sampling scheme to evaluate Norwegian marine recreational fisheries - A case study from the Oslofjord
2015
A direct estimate of the Calanus finmarchicus biomass in the Norwegian Sea
2015
Increased biomass indices, spatial distribution and density of Northeast Atlantic (NEA) mackerel (Scomber scombrus) in the Nordic Seas from 2007 to 2014
2014
"Decision-making under uncertainty: The case for confidence interval harvest control rules"
2014
Barotrauma and recovery of Atlantic cod (Gadus morhua) after rapid decompression: combining field observations and X-ray technology
2013
The Barents Sea survey strategy; the way forward to monitor the ecosystem
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)
2013
Uncertainty in estimates of density and biomass of Norwegian spring spawning herring based on combined acoustic and trawl surveys
2013
Efficient statistical estimators and subsampling strategies to quantify the age composition of fish (Paper J:08)
2013
Bycatch of seabirds in Norwegian coastal fisheries – comparison of estimation methods (Paper J:09)
2013
How can research support managment decisions to balance suistainable tourism and commercial fishing in Norway's coastal zone?
2013
Keynote Address. Survey sampling of fish and fisheries - how much is enough?
2011
Sustainable Sea Angling Tourism – is it advisable from a marine researchers perspective?
2010
Sea2Data - Havforskingsinstituttets datainfrastrukturprosjekt for feltdata
2010
A probability-based survey with the use of selfsampling to estimate catch and effort in Norways´s coastal tourist fishery
2009
Evaluating the effects of uncertainty in estimated catch-at age and tuning indices on analytic assessment and quota recommendations for fish stocks
2009
Recreational Fisheries in Norway - Tourist Recreational Fishery in Norway
2009
Recreational Fisheries in USA - Delaware River Survey
2008
Probability-based survey techniques for monitoring catch and effort in the coastal small scale fisheries in Mozambique
2008
Kartlegging av turistfisket langs norskekysten
2008
Hvor mye fisk tar fisketuristene? Er fisketurisme bærekraftig?
2005
Comparing and combining effort and catch estimates from aerial-access designs with applications to a large-scale angler survey in the Delaware River
2004
A probability-based monitoring program for assessing status and trends in the biological condition of Maryland non-tidal streams at multiple spatial scales
Poster
2013
Fishery investigations in Arctic waters with the new Norwegian ice-going research vessel
Rapporter og avhandlinger
2021
The Coastal Reference Fleet 2007-2019 - Fleet composition, fishing effort and contributions to science
2021
Final report for the REDUS project - Reduced Uncertainty in Stock Assessment
2019
Hummerfisket 2017 og 2018: Innsats og fangst
2015
Catch-and-release of Atlantic cod (Gadus morhua) in recreational fisheries
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)
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)
2011
Hva betyr fisketurismen for de lokale fiskebestandene langs kysten? Havforskningsrapporten 2011. Fisken og Havet, Særnummer 1-2011
2011
Evaluering av datagrunnlaget 2006–2009 for estimering av andel rømt oppdrettslaksi gytebestanden i norske elver Forslag til forbedringer i utvalgsmetoder og prøvetakingsmetodikk
2011
Evaluation of the Norwegian Reference Fleet A Report to the Institute of Marine Research by an International Committee
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
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
2009
Kartlegging av turistfiske [Survey of catch and effort in the tourist fishery.]
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
2007
A Demographic Model of Oyster Populations in the Chesapeake Bay to Evaluate Proposed Oyster-Restoration Alternatives
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]
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
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
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
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
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
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
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
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)
1992
Using acoustics to improve precision of bottom trawl indices of abundance. ICES C.M. 1991/D:13
1990
Some aspects of the design and analysis of marine abundance surveys.Dissertation, Dr.Scient
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