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Thorolf Magnesen

Department of Biological Sciences (BIO)
  • E-mailthorolf.magnesen@uib.no
  • Phone+47 55 58 42 50+47 959 27 754
  • Visitor Address
    Thormøhlensgt 53B
    Bergen
    Room 
    2G16
  • Postal Address
    Postboks 7803
    5020 Bergen

Dr. Thorolf Magnesen is an Associate Professor at the Department of Biology, University of Bergen. He has background as a marine zooplankton ecologist and has during the last 20 years been working on several biological and aquaculture aspects of bivalve production. His main expertise is in the hatchery production of great scallop (P. maximus) and in particular the reproduction cycle and larval rearing. He has designed the scallop hatchery and establish broodstock conditioning regimes for several Norwegian scallop populations, and his work has contributed signicantly to the development of scallop aquaculture in Norway. He has been the project leader of several shellfish projects related to hatchery production, natural populations and market projects funded by the Research Council of Norway, Innovation Norway, regional county councils and private industry, as well as EU funded research and development. Dr. Magnesen is also administrating a national scallop business development network “Sea-ranching of the great scallop” in Norway. Dr. Magensen has previously supervised a number of Bachelor, Master and PhD candidates.   

MNF201  SCOLI; Scallops and E. coli. 2 students, semester project.

MAR 350  Scallop physiology, lectures og semester project.

MAR 250 Biology and rearing bivalvales and crustaceans, lectures

MNF 115 Scientific perspective on sustainable development. Subject responsible.

Academic article
  • Show author(s) (2023). Overcoming Ostrea edulis seed production limitations to meet ecosystem restoration demands in the UN decade on restoration. Aquatic Living Resources.
  • Show author(s) (2023). Macromolecular sheets direct the morphology and orientation of plate-like biogenic guanine crystals. Nature Communications.
  • Show author(s) (2022). Temperature-associated selection linked to putative chromosomal inversions in king scallop (Pecten maximus). Proceedings of the Royal Society of London. Biological Sciences. 1-11.
  • Show author(s) (2019). Improving scallop (Pecten maximus and Placopecten magellanicus) spat production by initial larvae size and hydrodynamic cues used in nursery system. Aquaculture. 1-11.
  • Show author(s) (2019). Comparative study of the culturable microbiota present in two different rearing systems, flow-through system (FTS) and recirculation system (RAS), in a great scallop hatchery. Aquaculture Research. 1-15.
  • Show author(s) (2017). Neptuniibacter pectenicola sp. nov. and Neptuniibacter marinus sp. nov.,two novel species isolated from a Great scallop (Pecten maximus)hatchery in Norway and emended description of the genusNeptuniibacter. Systematic and Applied Microbiology. 80-85.
  • Show author(s) (2017). Complete characterization of new isolates of Neptunomonas phycophila leads to emend its description and opens possibilities of biotechnological applications. MicrobiologyOpen. 1-9.
  • Show author(s) (2017). Arcobacter lekithochrous sp. nov., isolated from a molluscan hatchery. International Journal of Systematic and Evolutionary Microbiology. 1327-1332.
  • Show author(s) (2016). Recirculation nursery systems for bivalves. Aquaculture International.
  • Show author(s) (2015). Sinobacterium norvegicum sp. nov., isolated from great scallop (Pecten maximus) broodstock and emended description of Sinobacterium caligoides. Antonie van Leeuwenhoek. International Journal of General and Molecular Microbiology. 983-991.
  • Show author(s) (2013). Implications of larval diet concentration on post-larval yield in a production scale flow-through system for scallops (Pecten maximus Lamarck) in Norway. Aquaculture International. 435-452.
  • Show author(s) (2013). Effect of different filter methods on seawater quality at a marine scallop hatchery. Journal of Aquaculture Research & Development.
  • Show author(s) (2012). Potential predation rates by the sea stars Asterias rubens and Marthasterias glacialis, on juvenile scallops, Pecten maximus, ready for sea ranching. Aquaculture International. 189-199.
  • Show author(s) (2012). Effects of reduced diameter of bag cultures on content of essential fatty acids and cell density in a continuous algal production system. Journal of Applied Phycology. 109-116.
  • Show author(s) (2012). Effect of water recirculation on seawater quality and production of scallop (Pecten maximus) larvae. Aquacultural Engineering. 1-6.
  • Show author(s) (2011). Effects of reduced diameter of bag cultures on content of essential fatty ascids and cell density in a continous algal production system. Journal of Applied Phycology.
  • Show author(s) (2010). Stable isotopes and fatty acids as tracers of the assimilation of salmon fish feed in blue mussels (Mytilus edulis). Aquaculture. 202-210.
  • Show author(s) (2010). Growth of scallop spat in a raceway nursery during autumn conditions in western Norwegian waters. Journal of Shellfish Research. 45-54.
  • Show author(s) (2010). Fatty acid composition in adductor muscle of juvenile scallops (Pecten maximus) from five Norwegian populations reared in the same environment. Biochemical Systematics and Ecology. 478-488.
  • Show author(s) (2010). Does a large-scale continuous algal production system provide a stable supply of fatty acids to bivalve hatcheries? Journal of Applied Phycology. 769-777.
  • Show author(s) (2009). Gene expression analysis of essential catch factors in the smooth and striated adductor muscles of larval, juvenile and adult great scallop (Pecten maximus). Journal of Muscle Research and Cell Motility. 233-242.
  • Show author(s) (2009). Gene expression analyses of essential catch factors in the smooth and striated adductor muscles of larval, juvenile and adult great scallop (Pecten maximus). Journal of Muscle Research and Cell Motility. 233-242.
  • Show author(s) (2008). Reproductive cycle and conditioning of translocated scallops (Pecten maximus) from five broodstock populations in Norway. Aquaculture. 109-116.
  • Show author(s) (2008). Post-transport recovery of cultured scallop (Pecten maximus) spat, juveniles and adults. Aquaculture International. 171-185.
  • Show author(s) (2008). Monitoring the opportunistic bacteria Pseudoalteromonas sp. LT-13 in a great scallop, Pecten maximus hatchery. Aquaculture. 14-21.
  • Show author(s) (2007). Suspension culture of the great scallop Pecten maximus in Galicia, NW Spain: Intermediate secondary culture from juveniles to young adults. Journal of Shellfish Research. 1-8.
  • Show author(s) (2007). Large-scale raceway nursery for improved scallop (Pecten maximus) spat production. Aquacultural Engineering. 149-158.
  • Show author(s) (2006). Yields of great scallop, Pecten maximus, larvae in a commercial flow-through rearing system in Norway. Aquaculture International. 377-394.
  • Show author(s) (2006). Immunohistochemistry of great scallop Pecten maximus larvae experimentally challenged with pathogenic bacteria. Diseases of Aquatic Organisms. 163-173.
  • Show author(s) (2005). Suspension culture of the great scallop Pecten maximus in Galicia, NW Spain - Intermediate primary culture of hatchery produced spat. Journal of Shellfish Research.
  • Show author(s) (2005). Bacteria associated with early life stages of the great scallop, Pecten maximus; impact on larval survival. Aquaculture International. 575-592.
  • Show author(s) (2004). Hatchery production of scallop larvae (Pecten maximus) � survival in different rearing systems. Aquaculture International. 489-507.
  • Show author(s) (2003). Treatment of the early life stages of scallop (Pecten maximus) with antimicrobial agents; searching for an alternative to chloramphenicol. Aquaculture International. 399-409.
  • Show author(s) (2003). Characterization of the bacterial community associated with early stages of great scallop (Pecten maximus) using denaturing gradient gel electrophoresis (DGGE). Systematic and Applied Microbiology. 302-311.
  • Show author(s) (2002). Treatment of early life stages of scallop (Pecten maximus) with antimicrobial agents; searching for an alternative to chloramphenicol. . Aquaculture International. 399-409.
  • Show author(s) (2001). Effects of deployment time and acclimation on survival and growth of hatchery-reared scallop (Pecten maximus) spat transferred to the sea. Journal of Shellfish Research. 1043-1050.
  • Show author(s) (1993). Salinity tolerance of juvenile scallops (Pecten maximus L.) at low temperature. Aquaculture. 169-179.
  • Show author(s) (1993). Salinity tolerance of juvenile scallops (Pecten maximus L.) at low temperature. Aquaculture. 169-179.
Report
  • Show author(s) (2009). Settlement of Pecten maximus L. — Effects of the Postlarval Rearing Environment. 1,2. 1,2. .
  • Show author(s) (2009). Dagens forskning på yngelproduksjon av kamskjell. .
  • Show author(s) (1998). Yngelproduksjon av stort kamsjell 1997. .
  • Show author(s) (1996). Yngelproduksjon av stort kamskjell. .
  • Show author(s) (1994). Tang og tareundersøkelser. Delrapport 4. Miljøundersøkelser i Gassasundet og Nautøysundet, Bømlo og Stord kommune. 16. 16. .
  • Show author(s) (1994). Riksvegsamband Sveio-Stord-Bømlo: Konsekvenser for marint miljø. .
  • Show author(s) (1994). Produksjonsforhold for plankton og betraktninger om resipientkapasitet. Delrapport 2. Miljøundersøkelser i Gassasundet og Nautøysundet, Bømlo og Stord kommune. 16. 16. .
  • Show author(s) (1994). Nytt riksvegsamband Sveio-Stord-Bømlo. Konsekvenser for marint miljø. 16. 16. .
  • Show author(s) (1994). Fisk og skalldyrundersøkelser. Delrapport 5. Miljøundersøkelser i Gassasundet og Nautøysundet, Bømlo og Stord kommune. 16. 16. .
  • Show author(s) (1994). Bunndyrundersøkelser. Delrapport 3. Miljøundersøkelser i Gassasundet og Nautøysundet, Bømlo og Stord kommune. 16. 16. .
  • Show author(s) (1993). Prymnesium parvum i Ryfylke. Sluttrapport. .
  • Show author(s) (1993). Produksjonsforhold for plankton. .
  • Show author(s) (1993). Miljøundersøkelser i Høylandssundet, Kvinnherad kommune. .
  • Show author(s) (1993). Forskningsprogrammet MILFOR. Forstudie om økologiske effekter. .
  • Show author(s) (1993). Fastlandsforbindelse til Halsnøy. Konsekvenser for marint miljø. .
  • Show author(s) (1993). CO<sub>2</sub>-injeksjon i havet, effekter på marint liv. .
Academic lecture
  • Show author(s) (2010). Synchronisation of broodstock gonad maturation in scallop Pecten maximus during autumn and winter.
  • Show author(s) (2010). Successful survival of the metamorphosis of Pecten maximus cultured in through flow.
  • Show author(s) (2010). Successful survival of the metamorphosis of Pecten maximus cultured in through flow.
  • Show author(s) (2010). Optimising scallop Pecten maximus settlement efficiency by harvesting the best ratio of competent larvae.
  • Show author(s) (2010). Can diatom ratio in the broodstock diet affect spawning results for the great scallop (Pecten maximus L.) after artificial conditioning?
  • Show author(s) (2010). Attachment and metamorphosis in great scallop Pecten maximus: factors that can improve production results.
  • Show author(s) (2009). The challenge of reducing the production time of juvenile scallops (Pecten maximus) intended for sea ranching.
  • Show author(s) (2009). Stable isotopes and fatty acids as tracers of the assimilation of salmon fish feed in blue mussels (Mytilus edulis).
  • Show author(s) (2009). Production of Pecten maximus L. in land-based nursery during autumn season.
  • Show author(s) (2009). Factors affecting Pecten maximus postlarvae in down-wellers.
  • Show author(s) (2008). Identification of Pecten maximus populations in Norway by muscle fatty acid profiles.
  • Show author(s) (2008). A north-south study of Norwegian Pecten maximus broodstock.
  • Show author(s) (2007). Post-larval settlement of Pecten maximus L. in culture and effects of environmental conditions.
  • Show author(s) (2007). Effect of initial stocking density on Pecten maximus L.larval and post-larval performance.
  • Show author(s) (2005). Scallop spat production in Norway – is land-based nursery needed as an intermediate step between hatchery and sea?
  • Show author(s) (2005). Flow-through larval systems with different algal concentrations.
  • Show author(s) (2003). Scallop activity, a measure of vitality? [A part of the SCALQUAL, EU CRAFT project no. Q5CR 2000-70310].
  • Show author(s) (2000). Potensiale for verdiskapning basert på fremtidig utvikling av skalldyrnæring.
Popular scientific article
  • Show author(s) (2009). Scallop Culture in Norway. Bulletin of the Aquaculture Association of Canada. 49-54.
  • Show author(s) (2006). Norway's scallop industry moves toward large-scale larval culture. Global Aquaculture Advocate. 78-79.
  • Show author(s) (2005). Yngelproduksjon av stort kamskjell. Fisken og Havet, Særnummer. 163-165.
  • Show author(s) (2004). Produksjon av kamskjellyngel. Vekk med antibiotika og opp med overlevelsen. Norsk Fiskeoppdrett. 59-61.
  • Show author(s) (2004). Havbeiteloven � et virkemiddel for næringsutvikling? Havbruksrapport. 90-91.
  • Show author(s) (2001). Yngelproduksjon av stort kamskjell- problematisk larvefase ? Fiskehelse. 19-24.
  • Show author(s) (1993). Yngelproduksjon av stort kamskjell. Norsk Fiskeoppdrett.
  • Show author(s) (1993). Produksjon av stort kamskjell, FoU. Norsk Fiskeoppdrett.
  • Show author(s) (1992). Skjellnæring i Norge. NFFR. Ny Fisk.
  • Show author(s) (1992). Hvor står vi når det gjelder oppdrett av stort kamskjell? Norsk Fiskeoppdrett.
Doctoral dissertation
  • Show author(s) (1988). Vertical distribution of zooplankton in Lindåspollene, western Norway.
Academic chapter/article/Conference paper
  • Show author(s) (2018). The effect of winter pre-conditioning treatment on synchronising gonad development and spawning of the great scallop (Pecten maximus).
  • Show author(s) (2018). Monitoring marine bacteria in a European flat oyster (Ostrea edulis) hatchery using 3M PetrifilmTM Aerobic Count Plate.
  • Show author(s) (2003). Skjell - miljøvennlig fremtidsnæring.
Abstract
  • Show author(s) (2013). Transcriptome analysis of Pecten maximus hemocytes. Fish and Shellfish Immunology. 1671-1671.
  • Show author(s) (2007). Scallop fishery enhancement by area rotation - A management perspective. Journal of Shellfish Research. 1287-1289.
  • Show author(s) (2007). Scallop aquaculture in Norway-political vision, oil money but no commercialisation strategy! Journal of Shellfish Research. 1324-1325.
  • Show author(s) (2007). Post-larval settlement of Pecten maximus L. in culture and effects of environmental conditions. Journal of Shellfish Research. 1300-1300.
  • Show author(s) (2007). Effect of initial stocking density on Pecten maximus L. larval and post-larval performance. Journal of Shellfish Research. 1287-1287.
  • Show author(s) (2006). Scallop spat production in Norway - Is land-based nursery needed as an intermediate step between hatchery and sea? Journal of Shellfish Research. 274-275.
  • Show author(s) (2006). Flow-through larval systems with different algal concentrations. Journal of Shellfish Research. 264-264.
Poster
  • Show author(s) (2003). Improving the Quality of Scallops to Ensure a Viable Aquaculture Production (SCALQUAL) [EU CRAFT project no. Q5CR 2000-70310].
Academic literature review
  • Show author(s) (2011). Spat production of the great scallop (Pecten maximus): a roller coaster. Canadian Journal of Zoology. 579-598.

More information in national current research information system (CRIStin)

Publications in preparation:

Sissel Andersen, Gyda Christophersen and Thorolf Magnesen. Effect of algal concentration on lipid content and performance of scallop (Pecten maximus) larvae and their post-larval success (to be submitted to Aquaculture international)

 Magnesen, T. and K Redmond: Rates of predation by sea stars, Asterias rubens and Marthasterias glacialis, on scallops, Pecten maximus; effect of sea star size, automy and water temperature and implication for sea ranching. Submitted to Aquaculture

Laila Brunvold, Anita Jacobsen, Ruth-Anne Sandaa, Øivind Bergh, Thorolf Magnesen.

Addition of potential probiotic bacteria to algal cultures and their effect on scallop larval survival  (submitted to Aquaculture International).

Publications in international scientific journals:

2010    Otto Grahl-Nielsen, Anita Jacobsen, Gyda Christophersen, Thorolf Magnesen. Fatty acid composition in spat adductor muscle from five Norwegian king scallop (Pecten maximus) populations reared in the same environment. Biochemical Systematics and Ecology xx

2010    Anita Jacobsen, Otto Grahl-Nielsen, Thorolf Magnesen. Does large scale continuous algal production system provide a stable supply of fatty acids to bivalve hatcheries? Journal of Applied Phycology (accepted). DOI: 10.1007/s10811-010-9518-6

2010    Magnesen T., Erga S.R,  Christophersen G,. Growth of scallop spat in raceway nursery during autumn conditions in western Norwegian coastal waters. Journal of Shellfish research 29 (1): 1-10

2010    Redmond, K., Magnesen, T, Hansen, P.K., Strand, Ø and. Stable isotopes and fatty acids as tracers of the assimilation of salmon fish feed in blue mussels (Mytilus edulis). Aquaculture 298:202-210.

2009    Andersen, Ø., Torgersen, J.S., Pagander, H.H., Magnesen, T. Johnston, I.A. Gene expression analyses of essential catch factors in the smooth and striated adductor muscles of postlarval and adult great scallop (Pecten maximus). Journal of Muscle Research and Cell Motililty  30:233-242.

2008    Magnesen, T and G. Christophersen. Reproductive cycle and conditioning of translocated scallops (Pecten maximus) from five broodstock populations in Norway. Aquaculture 285, 109-116.

2008    Sandaa, R.-A., Brunvold, L., Magnesen, T. and Bergh, Ø.  Monitoring the opportunistic bacteria Pseudoalteromonas LT-13 in a great scallop, Pecten maximus  hatchery.  Aquaculture 276:14-21.

2008    Christophersen, G., Román, R., Gallagher, J. and T. Magnesen. Post-transport recovery of cultured scallop (Pecten maximus) spat, juveniles and adults. Aquaculture International 16:171-185.

2007    Louro, A., Christophersen, G., Magnesen, T. and Román, G. Suspension culture of the great scallop Pecten maximus in Galicia, NW Spain: Intermediate secondary culture from juveniles to young adults.  J Shellfish research 26 (1):1-8.

2007    Magnesen, T. and G. Christophersen.  Large scale raceway nursery for improved scallop spat production. Aquacultural engineering 36:149-158

2006    Sandlund, N., Torkildsen, L., Magnesen, T., Mortensen, S.H. and Bergh, Ø.  Immunohistochemistry of Great Scallop, Pecten maximus larvae, experimentally challenged with opportunistic pathogenic bacteria. Diseases of Aquatic Organisms 69:163-173

2006    Magnesen, T., Bergh, Ø. and Christophersen, G. Yields of great scallop, Pecten maximus, in a commercial flow-through rearing system in Norway. Aquaculture international, 14:377-394.

2005    Torkildsen, L., Lambert, C., Nylund, A., T. Magnesen and Bergh, Ø. Bacteria associated with early life stages of the great scallop, Pecten maximus:. impact on larval survival. Aquaculture International 13:575-592.

2005    Louro, A., Christophersen, G., Magnesen, T. and Román, G. Suspension culture of the great scallop Pecten maximus in Galicia, NW Spain. I: Intermediate primary culture of hatchery produced spat. J Shellfish research,   Vol. 24 No 1, 61-68

2004    Torkildsen, L and T. Magnesen. Hatchery production of scallop larvae (Pecten maximus) – survival in different rearing systems. Aquaculture international 12:489-507.

2003   Sandaa, R.-A., Magnesen, T., Torkildsen, L. and Bergh, Ø. Characterisation of the bacterial community associated with early stages of great scallop (Pecten maximus), using denaturing gradient gel electrophoresis (DGGE). Systematic and Applied Microbiology 26:302-311.

2002    Torkildsen, L., Coyne, R., Samuelsen, O.B., Magnesen, T. and Bergh, Ø. Treatment of the early life stages of scallop (Pecten maximus) with antimicrobial agents; searching for an alternative to chloramphenicol. Aquaculture International 10:399-409.

2001:   Christophersen, G. & Magnesen, T. Effects of deployment time and acclimation on survival and growth of hatchery-reared scallop (Pecten maximus) spat transferred to the sea. Journal of Shellfish Research 20(3):1043-1050.

1996:      Strand, Ø., Solberg, P.T.and Magnesen T. Nitrogen conversion in a bivalve culture system. J. Mar. biol. Ass. U.K. 76:57-72.

1993:   Strand, Ø., Solberg, P.T., Andersen, K.K. and Magnesen T. Strand. Salinity tolerance of       juvenile scallops (Pecten maximus L.) at low temperature. Aquaculture 115:169-179.

1989:      Aksnes, D., Aure, J., Kaartvedt, S., Magnesen, T. and Richards, J. Significance of   advection for the carrying capasities of fjord populations. Marine Ecology-Progress        Series 50(3):263-274.

1989:      Magnesen, T. Vertical distribution of size-fractions in the zooplankton community in Lindåspollene, western Norway. 1. Seasonal variation. Sarsia 74 (1):59-68.

1989:      Magnesen, T. Vertical distribution of size-fractions in the zooplankton community in Lindåspollene, western Norway. 2. Diel variations. Sarsia 74 (1):69-77.

1989:   Magnesen, T., Aksnes, D. and Skjoldal, H.R. Fine-scale vertical distribution of a summer zooplankton community in Lindåspollene, western Norway. Sarsia 74 (2):115-126.

 

1988:   Aksnes, D. and Magnesen, T. A population-dynamics apporoach to the estimation of             production of 4 calonoid copepods in Lindåspollene, western Norway. Marine Ecology Progress Series 45(1-2):57-68.

1988:      Magensen, T. Vertical distribution of zooplankton in Lindåspollene, western Norway. Dr scient thesis, University of Bergen. 147 pages.

1988:   Magensen, T. Horisontal distribution of zooplanktin in Lindåspollene, western Norway. May 1979. Sarsia 73:193-204.

1985    Aksnes, D. , Magnesen, T, and U. Lie.  Nutrient enrichment experiments in plastic cylinders and the implications of enhanced primary production in Lindaaspollene, western Norway. Sarsia, vol. 70, no. 1, pp. 45-58, 1985

 

1983.   Aksnes, D. and Magnesen, T. Distribution, development and production of Calanus finmarchicus (Gunnerus) in Lindåspollene, western Norway 1979. Sarsia 68:195-208.

1983:   Lie, U., Magnesen, T., Tunberg, B. and Aksnes, D.L. Preliminary studies on the vertical distribution of size-fractions in the zooplankton community in Lindåspollene, western Norway 1979. Sarsia 68:65-80.

Reports and articles in popular scientific resources:

2009    Andersen, S, G. Christophersen og T. Magnesen. Dagens forskning på yngelproduksjon av kamskjell. Kyst og havbruk 2009. Fisken og havet, særnummer 2-2009. Kap. 3, 194-196.

2009    Christophersen, G and Magnesen, T. Settlement of Pecten maximus L. – effects of the postlarval rearing environment. 17th Pectinid Workshop, IPW scallop workshop publication. Bull. Aquacul. Assoc. Canada 107-1 (2007):55-60.

2009    Magnesen, T. Scallop Aquaculture in Norway. 17th Pectinid Workshop, IPW scallop workshop publication. Bull. Aquacul. Assoc. Canada 107-1 (2007):49-54

2007    Skjæggestad, H og T Magnesen. Næringsaktører spår lys fremtid for kamskjell i havbeite. Strategiplan. Norsk fiskeoppdrett. nr 2, februar 2007.

2007    Christophersen, G og T. Magnesen. Lokale, stedegne kamskjell – en forutsetning for havbeite. Norsk fiskeoppdrett, nr 1, januar 2007.

2006.   Skjæggestad, H og T Magnesen. Strategiplan for havbeite med kamskjell. Bransjenotat. Rapport fra RUP-prosjekt Hordaland fylkeskommune.

2006    Sissel Andersen, Gyda Christophersen and Thorolf Magnesen .  Norway's Scallop Industry Moves Towards Large-Scale Larval Culture in Global Aquaculture Advocate, The Global Magazine for Farmed Seafood. July/August 2006.

2005    Andersen, S, T. Magnesen og G. Christophersen. Yngelproduksjon av stort kamskjell. Havbruksrapporten, Kyst og havbruk 2005, kapitel 6.2: 163-165.

2004    Strand Ø., Agnalt A-L: og T. Magnesen. Havbeiteloven – et virkemiddel for næringsutvikling? Havbruksrapporten 2004. Pp 90-91. Havforskningsinstituttet, Bergen, Norge.

2004    Bergh, Ø, L. Bruvoll, R-A Sandaa og T. Magnesen. Produksjon av kamskjellyngel. Vekk med antibiotika og opp med overlevelsen. Norsk fiskeoppdrett nr 9, side 59-61.

2004    Magnesen, T.  Kystskjell – bedriftsnettverk og kostnadseffektive metoder. Sluttrapport SNP-prosjektet: KYSTUTVIKLING OG SKJELLPRODUKSJON, desember 2003, inkludert 5 fagrapporter med forfattere: Uksnøy, L.E., T. Stromeier og E. Bergtun:

1: Delprosjekt 1 – Nettverk for etablerte skjellbedrifter

2: Delprosjekt 2 – Kostnadseffektiv dyrking av kamskjell i mellom og bunnkultur

3: Delprosjekt 2 – Kostnadseffektiv dyrking av østers

4: Delprosjekt 2 – Produksjonsmodell

5: Delprosjekt 2 – Modellbetraktninger hengende kulturer

2003    Magnesen, T. og G. Christophersen. Improving quality of scallops to ensure a viable aquaculture production (SCALQUAL) – final report (14 p). EU contract Q5CR 2000-70310, including 4 Workpackage reports (70, 110, 166, 66 p) and Code of Best Practice (31 p) by Christophersen, G, G. Roman and T. Magnesen (eds).

2001    Magnesen, T. Yngelproduksjon av stort kamskjell- problematisk larvefase ?

Pp 19-24 i Fiskehelse, Fagtidsskrift utgitt av Fiskehelseforeningen, nr 1 mars 2001.

2000    Magnesen, T.. Yngelproduksjon av stort kamskjell. - Norsk Fiskeoppdrett 2/2000. Side 24-26.

2000:   Magnesen, T. Stort kamskjell – yngelproduksjon. FoU-arbeid med bakterieproblemer i larvefasen. Havbruksrapporten 2000.  Fisken og Havet, særnummer 3. 2000. Havforskningsinstituttet.

1999    Lambert, C., Bergh, Ø., Torkildsen, L. Magnesen, T.  Alternative to antibiotic treatment in scallop larval culture: Introduction and first results.  Book of Abstracts: 12th International Pectinid Workshop. 1999

1999:   Magnesen, T., Brynjelsen, E. & Knutsen, I. Yngelproduksjon av stort kamskjell.

            SMR-rapport 29/99. Senter for miljø- og ressursstudier, Univ. i Bergen. 33 sider.

1998:   Magnesen, T. & Brynjelsen, E. Yngelproduksjon av stort kamskjell 1997.   SMR-rapport 28/98. Senter for miljø- og ressursstudier, Univ. i Bergen.. 23 sider.

1997:   Magnesen, T. & Brynjelsen, E. Yngelproduksjon av stort kamskjell 1996.   SMR-rapport 27/97. Senter for miljø- og ressursstudier, Univ. Bergen. 33 sider.

1997:   Magnesen, T. Broodstock conditioning of Pecten maximus. Book of abstracts, Eleventh International Pectinid Workshop, 10-15 April 1997, La Paz, Mexico

1997:   Meeren, T van der, Magnesen, T., Torkildsen, L. og Andersen,. S. Yngelproduksjon av  stort kamskjell. Del 2: optimalisering og oppskalering av yngelproduksjon 1996. Fisken og Havet 4/1997. Havforskningsinstituttet (Institute of Marine Research).

1996:   Christophersen, G. & Magnesen, T. Yngelproduksjon av stort kamskjell. Sluttrapport 1995. SMR rapport 22/96. Senter for miljø- og ressursstudier, Univ. i Bergen. 23 s.

1994:   Lie, U. og Magnesen, T. (eds.). Riksvegsamband Sveio-Stord-Bømlo: Konsekvenser for marint miljø. SMR-rapport 16/94. Senter for miljø- og ressursstudier, Univ. i Bergen. ISSN 0803-713. 174 sider.

1994    Lie, U. og Magnesen, T. (eds.). Prymnesium parvum i Ryfylke: sluttrapport. SMR- rapport 9/93. Senter for miljø- og ressursstudier, Univ. i Bergen. 140 s.

1993    Magensen, T.  Produksjon av stort kamskjell, F&U . - Norsk Fiskeoppdrett 8/93

1993    Magnesen, T. og S. Andersen. Yngelproduksjon av stort kamskjell - Norsk fiskeoppdrett, nr 14A/1993

1993:   Gade, H.G. og Magnesen, T. Fastlandsforbindelse til Halsnøy. Konsekvenser for marint miljø. SMR-rapport 11/93. Senter for miljø- og ressursstudier, UiB. 14 sider.

1993:   Lie, U. og Magnesen, T. (eds.). Miljøundersøkelser i Høylandssundet, Kvinnherad     kommune. SMR-rapport 7/93. Senter for miljø- og ressursstudier, Univ. i Bergen. ISSN 0803-7132. 175 sider.

1993        Magnesen, Thorolf og T. Wahl: Biological impact of deep sea disposal of carbon dioxide. 1993, Nansen Senter for Miljø og Fjernmåling (NERSC), Bergen, Nansen-Group: NERSC Technical Report nr. 77A

1994        1993:   Lie, U. og Magnesen, T. Forstudie om Økologiske effekter. SMR-rapport 8/93. Universitetet i Bergen, Senter for miljø- og Ressursstudier. 46 sider.

1993    Magnesen, T. CO2-injeksjon i havet, effekter på marint liv  SMR rapport ; 6/93 Universitetet i Bergen, Senter for miljø- og ressursstudier, 1993.  21 sider.

1992    Magnesen, T. 1992. Hvor står vi når det gjelder oppdrett av stort kamskjell?  Norsk Fiskeoppdrett nr.4/1992.

1992    Magnesen, T.. Skjellnæring i Norge. – Ny Fisk . Brosjyre fra NFFR

1989:   Magnesen, T., Aadnesen, A. og Lie, U. Nutrient content in runoff water to Lindåspollene. IMB rapport ; 1, 1989. Institutt for marinbiologi. Universitetet i Bergen.16 sider.

1985    Magnesen, T. og Aksnes, D. Dypvann og skjellkulturer. Norsk fiskeoppdrett  vol 10 no 3 side 25, 1985.

Presentations and talks (examples, not complete)

IPW 2009

Grahl-Nilsen, O., G. Christophersen, A. Jacobsen and T. Magensen. Identification of populations of Pecten maximus by tissue fatty acid profiles. Physiomar International Meeting. Brest, September 2008.

Christophersen, G and T. Magnesen. A north-south study of Norwegian Pecten maximus broodstock populations. Physiomar International Meeting 2008. Brest, September 2008.

Magnesen; T. Scallop aquaculture in Norway – political vision, oil money, but no commercialisation strategy! 16th International Pectinid Workshop. Halifax, May 2007.

Magnesen, T. and G. Christophersen.  Broodstock conditioning strategies of great scallop (Pecten maximus) from different localities in Norway. Presentasjon ved: Reproduction and nutrition in mollusks. La Paz, Mexico November 2006

Magnesen, T. and G. Christophersen. Stock-specific broodstock conditioning

and spat settlement system. NFR Havbrukskonferanse, mars 2006.

Christophersen, G, Magnesen, T.  Scallop spat production in Norway – is land-based nursery needed as an intermediate step between hatchery and sea? 2005. 15th International Pectinid Workshop, Mooloolaba, Queensland, Australia.

Kamskjelldyrking, utfordringer og muligheter” Foredrag under statsminister Jens Stoltenberg besøk ved Akvariet i Bergen, 31.08.2001.

”Yngelproduksjon av stort kamskjell” og ”En helhetlig og kontrollert produksjonslinje”.

Nettverksamling nr 13 for skjellnæringen, 23-25 februar 2001., Åfjord på Fosen. 40 deltagere

Potensial for verdiskapning basert på fremtidig utvikling av skalldyrnæring. NAM-konferanse, Bergen, 3 november 2000.

Foredrag om yngelproduksjon av stort kamskjell og oppdrett på Nettverksamlinger for norsk skjellnæring, Tysnes, Trondheim, Fosen, i 2000, 2001 og 2002 (40-60 deltagere).

Foredrag ved seminar om norsk akvakulturnæring, St. Johns, Newfoundland

Foredrag på International Pectinid Workshop, La Paz, Mexico, 1997.

Foredrag på International Pectind Workshop, Wales, UK, 1987

Posters

2009    T. Magnesen, G. Christophersen, S. Andersen, G. Roman, R. Robert, L. Prez-Parall  and L. Sanchez. BIVALVE CONDITIONING AND SETTLEMENT, Keys to competitive hatchery production. International Pectinid Workshop, Santiago Compostela, Spain, 22-28 april 2009.

2003    Brunvold, L., Sandaa, R. A., Jacobsen, A., Magnesen, T. and Bergh, Ø. 2003. Inlet water flow over a biofilm with probiotic bacteria – a possible strategy to increase the survival of scallop larvae? Aquaculture Europe 2003. Beyond monoculture.  Trondheim, Norway August 8-12.2003.

2003:   Magnesen, T. & Christophersen, G. Improving the Quality of Scallops to Ensure a Viable Aquaculture Production (SCALQUAL) [EU CRAFT project no. Q5CR 2000-70310]. 14th International Pectinid Workshop, St. Petersburg, Florida,USA, April 23-29.2003.

 Abstracts

2006    Pagander, H; Strand, Oe; Magnesen, T; Johnston, IA; Andersen, Oe Great scallop myostatin--the role as a negative muscle growth regulator also in invertebrates?  Journal of Shellfish Research Vol. 25, no. 1, p. 298. Apr 2006.

2006:   Andersen, S., Christophersen, G & Magnesen, T.       Flow-through larval systems with different algal concentrations. Abstracts of papers     presented at the 15th International Pectinid Workshop, Mooloolaba, Australia. Journal of Shellfish Research 25(1):264.

2006:   Christophersen, G & Magnesen, T.      Scallop spat production in Norway – is land-based nursery needed as an intermediate step between hatchery and sea? Abstracts of papers presented at the 15th International  Pectinid Workshop, Mooloolaba, Australia. Journal of Shellfish Research 25(1):274-   275.

2005:   Andersen, S., Christophersen, G & Magnesen, T.       Flow-through larval systems with different algal concentrations, pp.80-81. In: Book of  Abstracts, 15th International Pectinid Workshop, Mooloolaba, Queensland, Australia.

2005:   Christophersen, G & Magnesen, T.      Scallop spat production in Norway – is land-based nursery needed as an intermediate step between hatchery and sea?, pp.72-73. In: Book of Abstracts, 15th International Pectinid Workshop, Mooloolaba, Queensland, Australia.

2003    Christophersen, G, Magnesen, T. & Román, G. 2003. Scallop activity, a measure of vitality? [A part of the SCALQUAL, EU CRAFT project no. Q5CR 2000-70310], pp. 50-51. In: Book of Abstracts, 14th International Pectinid Workshop, St. Petersburg, Florida, USA.

2001    Bergh, Ø., Torkildsen, L., Andersen, S., Samuelsen, O.B., Nylund, A., Lunestad, B.T., Mortensen, S., Strand, Ø., Magnesen, T., and Lambert, C.  Pathogens in scallop, Pecten maximus, hatcheries and possible strategies to control them. Poster.  Larvi’01 Fish and shellfish larviculture symposium. September 3-6 Ghent University, Belgium.   In: C.I. Henry, G. van Stappen, M. Ville, and P. Sorgeloos (eds.) European Aquaculture Society, Special Publication No. 30 pp. 64-67.

1999    Lambert, C; Bergh, Ø; Torkildsen, L; Magnesen, T. Alternative to antibiotic treatment in scallop larval culture: Introduction and first results. Bergen, Norway Source   Book of Abstracts: 12th International Pectinid Workshop. 1999.

Current projects

2010-2014 REPROSEED: REsearch to improve PROduction of SEED of established and emerging bivalve species in European hatcheries.

2008-2010 Initiativtaker og koordinator: Bivalve conditioning and settlement – keys to competitive hatchery production (SETTLE).


 

  • PhD. 1988. University of Bergen
  • MSc. 1982. University of Bergen