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Fiskeribiologi
Livshistorie teori
Limnologi
Forvaltning
MNF 115 - Naturfagleg perspektiv på bærekraftig utvikling
MAR 230 - Fiskeriøkologi
MAR 339 - Fiskerimodeller
Vitenskapelig artikkel
- (2023). Putting small fish on the table: the underutilized potential of small indigenous fish to improve food and nutrition security in East Africa. Food Security. 15 sider.
- (2022). Tuning and Development of an Individual-Based Model of the Herring Spawning Migration. Frontiers in Marine Science. 1-14.
- (2022). Recent trends in abundance and fishing pressure of agency-assessed small pelagic fish stocks. Fish and Fisheries. 1313-1331.
- (2022). Proximity to small-scale inland and coastal fisheries is associated with improved income and food security. Communications Earth & Environment. 11 sider.
- (2022). Need for harmonized long-term multi-lake monitoring of African Great Lakes. Journal of Great Lakes research.
- (2022). Discards of cod (Gadus morhua) in the Norwegian coastal fisheries: Improving past and future estimates. ICES Journal of Marine Science. 1548-1560.
- (2022). Capturing big fisheries data: Integrating fishers’ knowledge in a web-based decision support tool. Frontiers in Marine Science. 1-11.
- (2021). Targeted risk assessment of mercury exposure of recreational fishers: Are nephrops fishers in Norway at risk? Environmental Science and Pollution Research. 50316-50328.
- (2021). Anchovy powder enrichment in brown rice-based instant cereal: a process optimization study using Response Surface Methodology (RSM). Food Science & Nutrition. 4484-4496.
- (2021). A photovoice assessment for illuminating the role of inland fisheries to livelihoods and the local challenges experienced through the lens of fishers in a climate-driven lake of Malawi. Ambio.
- (2020). Nutrient and chemical contaminant levels in five marine fish species from Angola—The EAF-Nansen programme. Foods. 1-19.
- (2020). Exploring balanced harvesting by using an Atlantis ecosystem model for the Nordic and Barents seas. Frontiers in Marine Science. 18 sider.
- (2020). Effects of climate and land-use changes on fish catches across lakes at a global scale. Nature Communications. 1-14.
- (2019). Sequential analysis and design of fixed-precision sampling of lake kariba fishes using taylor?s power law. Canadian Journal of Fisheries and Aquatic Sciences. 904-917.
- (2019). Nearshore fish aggregating devices show positive outcomes for sustainable fisheries development in Timor-Leste. Frontiers in Marine Science.
- (2019). Balanced harvest: concept, policies, evidence, and management implications. Reviews in Fish Biology and Fisheries. 711-733.
- (2019). Assessing the exploitation status of main fisheries resources in Ghana’s reservoirs based on reconstructed catches and a length-based bootstrapping stock assessment method. Lake and reservoir management. 415-434.
- (2018). Water level fluctuations and the ecosystem functioning of lakes. Journal of Great Lakes research. 1154-1163.
- (2017). Taylor’s power law and fixed precision sampling: application to abundance of fish sampled by gillnets in an African lake. Canadian Journal of Fisheries and Aquatic Sciences. 87-100.
- (2017). Fisheries and water level fluctuations in the world's largest desert lake. Ecohydrology. 1-16.
- (2017). Fish community dynamics in an inland floodplain system of the Okavango Delta, Botswana. Ecohydrology & Hydrobiology. 89-102.
- (2017). Effects of ambient oxygen and size-selective mortality on maturation and growth in guppies. Conservation Physiology. 1-13.
- (2016). The Nile perch invasion in Lake Victoria: cause or consequence of the haplochromine decline? Canadian Journal of Fisheries and Aquatic Sciences. 622-643.
- (2016). Maximizing fisheries yields while maintaining community structure. Canadian Journal of Fisheries and Aquatic Sciences. 644-655.
- (2016). Fisheries, the inverted food pyramid. ICES Journal of Marine Science. 1697-1713.
- (2016). Balanced harvesting can emerge from fishing decisions by individual fishers in a small-scale fishery. Fish and Fisheries. 212-225.
- (2016). Balanced exploitation and coexistence of interacting, size-structured, fish species. Fish and Fisheries. 281-302.
- (2015). Squaring the circle: Reconciling fishing and conservation of aquatic ecosystems. Fish and Fisheries. 160-174.
- (2014). Sustainable fishing of inland waters. Journal of Limnology. 132-148.
- (2014). Coupled human and natural system dynamics as key to the sustainability of Lake Victoria's ecosystem. Ecology & Society.
- (2013). Angler behaviour and implications for management - catch-and-release among marine angling tourists in Norway. Fisheries Management and Ecology. 137-147.
- (2012). On balanced exploitation of marine ecosystems: results from dynamic size spectra. ICES Journal of Marine Science. 602-614.
- (2012). Dynamics of the feeding ecology of selected fish species from the Okavango River delta, Botswana. Acta Ichthyologica et Piscatoria. 271-289.
- (2011). The tragedy of our legacy: how do global management discourses affect small-scale fisheries in the South? Forum for Development Studies. 267-297.
- (2011). Selecting indicators to assess the fisheries of Lake Malawi and Lake Malombe: Knowledge base and evaluative capacity. Journal of Great Lakes research. 26-44.
- (2008). Effect of ambient oxygen on growth and reproduction in Nile tilapia (Oreochromis niloticus). Canadian Journal of Fisheries and Aquatic Sciences. 1413-1424.
- (2006). Hydro-acoustic survey of deep pools in the Mekong River in southern Lao PDR and northern Cambodia. MCR Technical Paper.
- (2003). The Bangweulu swamps - A balanced small-scale multispecies fishery. FAO Fisheries Technical Paper. 34-66.
- (2003). Inshore fisheries and fish population changes in Lake Kariba. FAO Fisheries Technical Paper. 67-99.
- (2002). Monitoring of deep pools in the Mekong River: The potential of hydro-acoustic methods. Mekong Fish Catch and Culture. 3-6.
- (1998). Participation of local fishermen in scientific fisheries data collection: a case study from the Bangweulu Swamps, Zambia. Fisheries Management and Ecology. 81-92.
- (1995). On the relationship between hydrology and fisheries in man-made Lake Kariba, cantral Africa. Fisheries Research. 205-226.
- (1994). I Afrika fanges det sild i ferskvann. Fiskets Gang. 53-56.
- (1993). Population dynamics and life-history styles of Nile Tilapia, Oreochromis Niloticus, in Ferguson's Gulf, Lake Turkana, Kenya. Environmental Biology of Fishes. 25-46.
- (1992). Growth, mortality, maturity and trophic structure of Lake Kariba. NAGA, the ICLARM Quarterly.
- (1991). A summary of Lake Turkana: an ever-changing mixed environment. Mitt.Int.Verein.Limnol..
- (1990). "Ennå vet vi ikke nok, vi må forske mer" Om modellbegrebet i fiskeribiologi. Ariadne - Forum for kritisk samfunnsteori. 46-68.
Rapport
- (2021). The Coastal Reference Fleet 2007-2019 - Fleet composition, fishing effort and contributions to science. 2021 - 52. 2021 - 52. .
- (2015). Balanced harvest in the real world. Scientific, policy and operational issues in an ecosystem approach to fisheries. .
- (2011). Selective Fishing and Balanced Harvest in Relation to Fisheries and Ecosystem Sustainability. .
- (2011). A brief review of the Bangweulu fishery complex. .
- (2009). Review of tropical reservoirs and their fisheries in developing countries: The cases of the Lake Nasser, Lake Volta and Indo-Gangetic basin reservoirs. .
- (2009). Improved fisheries productivity and management in tropical reservoirs. .
- (2009). Engaging Local Communities in Aquatic Resources Research and Activities: A Technical Manual. .
- (2005). Lake Victoria Environmental Management Program (LVEMP): Regional Synthesis Report on Fisheries Research and Management. States, trends and processes. Final report for LVEMP National Secretariat, P.O. Box, Entebbe, Uganda. .
- (2005). Deep pools surveys of the Mekong River 2003-2004. Final report. 14. 14. .
- (2003). Management,co-management or no management? Major dilemmas in southern African freshwater fisheries. 2. Case studies. 426/2. 426/2. .
- (2003). Management, co-management or no management? Major dilemmas in southern African freshwater fisheries. 1. Synthesis report. 426/1. 426/1. .
- (2000). Fish populations, gill net selectivity, and artisanal fisheries in the Okavango River, Namibia. Recommendations for a sustainable fishery. 10. 10. .
- (1996). WWF Bangweulul Wetlands Project. Preliminary Report on Assessment of the Bangweulu Swamps Fisheries. June 1996. .
- (1996). WWF Bangweulu Wetlands Project. Assessment of The Bangweulu Swamps Fisheries. Final Report. December 1996. .
- (1996). Feasibility and appraisal of fish stock management plan i Okavango. .
- (1995). Second report from Fish Stock Assessment consultant. WWF-DANIDA Bangweulu Wetlands Project, P.O.Box 72003 Samfya, Zambia. .
- (1995). Lake Mweru fisheries Programme. Evaluation Mission Report prepared for SNV/NDO Lusaka. SNV-Netherlands Development Organisation, Zambia. .
- (1993). On the relationship between hydrology and fisheries in Lake Kariba. .
Faglig foredrag
- (2017). Numerical competence and quantitative skills for BSc-students in biology.
Populærvitenskapelig foredrag
- (2015). Framtidas fiskenæring.
- (2011). The tragedy of our legacy - The fisheries management discourse - and its effects.
- (1992). Lake Turkana, an allotrophic equatorial lake.
- (1992). Changes in species composition and abundance of fish populations in Lake Turkana, Kenya.
Vitenskapelig foredrag
- (2015). Exploiting the natural productivity of aquatic ecosystems.
- (2014). The tragedy of our legacy – questioning the paradigms of fisheries science.
- (2014). The optimal fishing pattern for achieving an ecosystem approach to fisheries.
- (2014). Small-scale fisheries - importance, vulnerability, and deficient knowledge.
- (2014). Small-scale fisheries - do we need a change in the management paradigm?
- (2014). Questioning the legacy of fisheries science.
- (2014). Maximizing fisheries yields while maintaining ecosystem structure.
- (2014). Havet - vårt sikre matfat?
- (2014). Food from Water: Small-scale inland fisheries in Africa: importance and dynamics.
- (2014). Exploitation patterns in fisheries, a global meta-analysis from 151 Ecopath models.
- (2014). Dynamic Models of Size Spectra: Insights into Productivity and Exploitation of Fish Communities.
- (2014). Do unregulated, artisanal fisheries tend towards balanced harvesting?
- (2014). Could the Nile Perch Invasion in Lake Victoria Have Succeeded without the Preceding Decrease of Its Prey?
- (2014). Balanced harvesting promotes coexistence of interacting species.
- (2014). Balanced Harvesting – mere mad med mindre fodaftryk.
- (2014). A Paradigm Shift For Sustainable, Productive Fisheries: The Need To Move From Selective Fishing To Balanced Harvesting.
- (2013). Tensions between regulation policy and eco conscious fisheries regulations. The Norwegian case. The case globally.
- (2013). Small-scale fisheries – how should they be managed?
- (2013). New approaches to management of small-scale fisheries.
- (2013). Lake Kariba revisited: an update on fish community developments from 1960 to 2012.
- (2013). Is catch a function of effort or is effort a function of catch?
- (2013). Fish, Food and Fluctuations.
- (2013). Fish and Fisheries of Bangweulu Wetlands, Zambia.
- (2013). Effects of eutrophication on Lake Victoria fisheries.
- (2013). Catching the right size of fish: are size regulations harmful for small scale fisheries?
- (2013). Balansert høsting fra økosystemene.
- (2013). Balanced Harvesting.
- (2012). When prey becomes predators: eutrophication and the transition of Lake Victoria’s fish community from a cichlid to a Nile perch dominated state.
- (2012). Size selective mortality in fisheries and Nature.
- (2012). Selektivt fiske versus økosystembasert forvaltning.
- (2012). Optimal høstning av havets ressurser.
- (2012). Open access fisheries in African lakes: Do they need to be managed?
- (2012). Maximizing fisheries yields while maintaining ecosystem structure.
- (2012). Management of living aquatic resources and food security: How can Norway contribute?
- (2012). Kvotesystem og minstemål – trenger vi en ny reguleringsmodell?
- (2012). Fishing for resilience.
- (2012). Evaluation of balanced exploitation of marine ecosystems: results from dynamic size spectra.
- (2012). Diversity, disturbance and succession in the fish community of Lake Kariba, Zimbabwe, from 1960 to 2001.
- (2012). Balansert høstning – kan det forene bruk og vern?
- (2012). Balansert høstning – Bør vi endre våre høstingsstrategier og derved vår forvaltning?
- (2012). Balanced harvesting: Can it reconcile fisheries and conservation objectives?
- (2012). Balanced harvesting: Can it reconcile fisheries and conservation objectives, and how can it be done?
- (2012). Balanced harvest: can it reconcile fisheries and conservation objectives?
- (2011). The tragedy of our legacy: How do Global Management Discourses Affect Small Scale Fisheries in the South?
- (2011). The tragedy of our legacy: How do Global Management Discourses Affect Small Scale Fisheries in the South?
- (2010). Recent theoretical developments on the fishing patterns and management of small-scale fisheries.
- (2010). Non-selective open access fisheries in African lakes: Are they as bad as we think?
- (2010). Management and Mis-management of African freshwater fisheries.
- (2010). Fisheries dynamics in a fluctuating environment: Relating fish characteristics to the hydrological regime of the Okavango Delta.
- (2009). The tragedy of our legacy: How global management discourses affect rational exploitation of small scale fisheries.
- (2008). The state, trends and threats of the Lake Victoria Fisheries and Environment.
- (2008). The small scale perspective: Value, resilience, fishing patterns, and the need for open access.
- (2008). The origin and effect of mesh size regulations and why they may have to be rethought.
- (2008). Sustainable harvesting of mixed fisheries, the small scale perspective.
- (2008). Shifts in taxonomic and trophic patterns of fish communities in African lakes in relation to (human-induced) pressures.
- (2008). Overfishing in the Pacific? A new simple method of stock assessment on tropical coastal reef fisheries.
- (2008). Exploitation or eutrophication as threats for fisheries? Disentangling social and ecological drivers of ecosystem change in Lake Victoria, Tanzania (SEDEC).
- (2008). Exploitation or eutrophication as threats for fisheries?
- (2007). The state, trends and threats of the Lake Victoria fisheries and environment.
- (2007). The state, trends and threats of the Lake Victoria fisheries and environment.
- (2007). Relative lake level changes and fish productivity in African lakes and reservoirs.
- (2007). Perspectives and dilemmas for small-scale fisheries management in African freshwater fisheries.
- (2007). Eutrophication threatens the size structure of the Nile perch stocks in Lake Victoria.
- (2007). Diversity, disturbance, and succession in the fish community of Lake Kariba, Zimbabwe, from 1960 to 2001.
- (2006). Marine Protected Areas in relation to fisheries – what are the biological and fish stock implications?
- (2005). How resilient is Lake Vitoria? State, trends and processes of its fisheries and environment.
- (2005). Co-management or no management? – Experiences from management on Southern African lakes.
- (2003). Diversity, Disturbance, and ecological succession of the inshore fish populations in Lake kariba, Zimbabwe from 1960 to 2001.
- (2002). Fish Stock Assessment in the Okavango delta, Botswana – preliminary results from a length based analysis.
- (2002). Exploitation and management of the fish resources in the Okavango river, Namibia.
- (1997). Myths and facts in the Okavango Delta fishery.
- (1995). Reservoirs in River Basin Development Fishing, flushing and fish behaviour. - A case study from the seasonal Kashm el Girba reservoir in Sudan.
- (1995). Population dynamics and sustainable yield of Limnothrissa miodon (Kapenta) in Lake Kariba, Africa.
- (1994). Hydroacoustic stock assessment of Kapenta (Limnothrissa miodon) in Lake Kariba, central Africa.
- (1993). Fish diversity changes in Lake Kariba.
Leder
- (2012). Reconsidering the Consequences of Selective Fisheries. Science. 1045-1047.
Leserinnlegg
- (2013). Incredible evolution or incredulous application? Ecological Applications. 670-671.
Fagbok
- (2019). Freshwater small pelagic fish and fisheries in the main African great lakes and reservoirs in relation to food security and nutrition. Food and Agriculture Organization of the United Nations (FAO).
- (2016). Fisheries in the Drylands of Sub-Saharan Africa – “Fish come with the rains”. Building resilience for fisheries-dependent livelihoods to enhance food security and nutrition in the Drylands. Food and Agriculture Organization of the United Nations.
- (2005). Improving productivity in tropical lakes and reservoirs. Challenge Program on Water and Food. Aquatic Ecosystems and Fisheries Review Series I. Theme 3 of CPWF, WorldFish Center, Cairo, Egypt. WorldFish Center.
Kompendium
- (2002). Lecture notes. AdriaMed training course on fish population dynamics and stock assessment. FAO-MiPAF Scientific Cooperation to Support Responsible Fisheries in the Adriatic Sea. GCP/RER/010/ITA/TD-08. 8.
- (1995). PASGEAR A data base package for experimental fishery data from passive gears. A short introductory manual.
Mastergradsoppgave
- (2016). Effect of ambient oxygen on the life history of Guppies (Poecilia reticulata).
- (2015). Mangrove forest extent and status along the Eritrean Red Sea coast.
- (2015). Effect of ambient oxygen on the life history of Guppies (Poecilia reticulata).
- (2013). Growth of juvenile nile perch in lake victoria derived from otoliths.
- (2011). Review of the Tanzanian prawn fishery.
- (2011). Marine Angling Tourism in Norway: The Interactions between Behavior, Management and Catch.
- (2010). Spatial and temporal relationships between fish abundance and fishing effort in Lake Victoria Tanzania.
- (2006). Dwindling fish stocks in Lake Malawi and Lake Malombe: Effect of environment or artisanal exploitation?
- (2006). An evaluation of fish population changes in the Kafue Flats floodplain fishery of Zambia from 1980 to 2005.
- (2004). Effects of hanging ratio on species composition and catch rates of drift gillnets.
- (2004). Dynamics of demersal fish assemblages off Angola.
- (2004). Bycatch in the deep water shrimp fishery off Angola.
- (2000). Impact of Kapenta (Limnothrissa miodon,) introduction on the fish community in Lake Itezhi-tezhi, Zambia.
Database
- (2005). Pasgear II.
Populærvitenskapelig artikkel
- (1991). Environmental Variability in the Sahel and its Constraints on Animal Husbandry. Forum for utviklingsstudier. 215-228.
Doktorgradsavhandling
- (2019). Dynamics of the Seasonal floodplain Fishery of the Okavango Delta, Botswana.
- (2015). Catch-and-release of Atlantic cod (Gadus morhua) in recreational fisheries.
- (1994). Plus ca change, plus c'est la meme chose. On the ecology and exploitation of fish in fluctating tropical freshwater systems.
Dokumentar
- (2013). Fisken krymper.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
- (2019). Strategies Used Throughout the World to Manage Fisheries Discards – Lessons for Implementation of the EU Landing Obligation. 24 sider.
- (2016). In the Frame: Modifying Photovoice for Improving Understanding of Gender in Fisheries and Aquaculture. 15 sider.
- (2015). The Optimal Fishing Pattern. 920 sider.
- (2014). Small-scale fisheries - importance, vulnerability, and deficient knowledge. 15 sider.
- (2008). Are the Lake Victoria fisheries threatened by exploitation or eutrophication? Towards an ecosystem based approach to management. 46 sider.
- (2007). Inland fisheries and aquaculture. 25 sider.
- (2007). Inland Fisheries and Aquaculture. 25 sider.
- (2002). Fish capture devices in industrial and artisanal fisheries and their influence on management. 24 sider.
- (1997). Diversity, Disturbance and Dubious Dogma. On some difficult concepts in community ecology. 20 sider.
- (1997). "Ennå vet vi ikke nok, vi må forske mer"- om fiskerikriser og økologiske modeller. 18 sider.
- (1994). Inshore fish population changes in Lake Kariba, Zimbabwe.
- (1994). Changes in species composition and abundance of fish populations in Lake Turkana, Kenya.
- (1993). Trophic interrelationships and community structure at two different periods of Lake Turkana, Kenya - a comparison using the ECOPATH II box model. 8 sider.
- (1993). A preliminary assessment of the trophic structure of Lake Kariba - a man-made lake, Zimbabwe. 8 sider.
- (1993). 51 colour plates of marine species off Namibia. -249 sider.
- (1992). 115 colour plates of commercial fish of Southern Carribean. 1 sider.
- (1991). Content and organization of institutional support.
Poster
- (2006). Lake Victoria Nile perch fishery, threatened by exploitation or eutrophication?
- (2006). Lake Victoria Nile perch fishery, threatened by exploitation or eutrophication?
- (1990). Relationship between water level and fish production in Lake Turkana, Kenya - based on CPUE data.
Vitenskapelig oversiktsartikkel/review
- (2022). The Okavango Delta: Fisheries in a fluctuating floodplain system. Frontiers in Environmental Science.
- (2022). Lake Turkana: Status, challenges, and opportunities for collaborative research. Journal of Great Lakes research.
- (2020). Fish for food and nutrition security in Ghana: Challenges and opportunities. Global Food Security. 10 sider.
- (2016). Balanced harvest: Utopia, failure, or a functional strategy? ICES Journal of Marine Science. 1616-1622.
- (2012). Relative lake level fluctuations and their influence on productivity and resilience in tropical lakes and reservoirs. Fisheries Research. 99-109.
- (2011). Review of tropical reservoirs and their fisheries: the cases of the Lake Nasser, Lake Volta and Indo-Gangetic basin reservoirs. FAO Fisheries Technical Paper.
Fagartikkel
- (2023). SPF - Workshop 3: Small Pelagics for Whom? Challenges and Opportunities for the Equitable Distribution of Nutritional Benefits. Newsletter of the North Pacific Marine Science Organization.
- (2021). The Coastal Reference Fleet 2007-2019 - Fleet composition, fishing effort and contributions to science. Rapport fra havforskningen.
Faglig kapittel
- (2014). Status, trends and management of the Lake Victoria Fisheries. 49-62. I:
- (2014). Inland fisheries evolution and management - Case studies from four continents. Food and Agriculture Organization of the United Nations (FAO).
Dr. Scient (1994) Fiskeribiologi