Olav Nikolai Risdal Breivik

Olav Nikolai Breivik; Hans Julius Skaug; Martin Jullum; Martin Biuw; Spatial Variation on Multiple Scales in Line Transect Data; the Case of Antarctic Fin Whales Journal of the American Statistical Association, vol. 00, pp. 1 13 , (ISSN 0162-1459 1537-274X ), doi: https://doi.org/10.1080/01621459.2025.2566422 , 2025. Vitenskapelig artikkel

Olav Nikolai Breivik; Spatial Variation on Multiple Scales in Line Transect Data , 2025. Faglig foredrag

Daniel Howell; Magnus Aune; Bjarte Bogstad; Olav Nikolai Breivik; Irina Prokopchuk; Elena Eriksen; Elvar Halldor Hallfredsson; Edda Johannesen; Kjell Harald Nedreaas; Caroline Aas Tranang; John Tyler Trochta; Mikko Vihtakari; Tone Vollen; Kristin Windsland; Joint Russian Norwegian Arctic Fisheries Working Group (JRN-AFWG) Report 2025 , 2025. Rapport

Olav Nikolai Breivik; Martin Jullum; Leveraging Norwegian Data to Improve Danish Insurance Risk Models 2024. Rapport

Olav Nikolai Risdal Breivik; Martin Jullum; Leveraging Norwegian Data to Improve Danish Insurance Risk Models NR-notat, 2024. Vitenskapelig artikkel

Olav Nikolai Breivik; A practical course in the state space assessment model SAM and RTMB 2024. Faglig foredrag

Olav Nikolai Breivik; Introduction to Template Model Builder 2024. Faglig foredrag

Daniel Howell; Ross Tallman; Brian Stock; Maria Fossheim; Thomas de Lange Wenneck; Alf Harbitz; Alfonso Perez-Rodriguez; Arved Staby; Bjarte Bogstad; Berengere Husson; Caroline Aas Tranang; Edda Johannesen; Elena Eriksen; Elvar Halldor Hallfredsson; Erik Berg; Georg Skaret; Hannes Höffle; Jan Erik Stiansen; Jane Aanestad Godiksen; Johanna Jennifer Elisabeth Fall; John Tyler Trochta; Kjell Harald Nedreaas; Kristin Windsland; Magnus Aune; Mikko Vihtakari; Olav Nikolai Breivik; Samuel Subbey; Silje Elisabeth Seim; Sofie Gundersen; Sondre Nedreås Hølleland; Stine Karlson; Tone Vollen; Advice on fishing opportunities for Northeast Arctic cod in 2025 in ICES subareas 1 and 2 , 2024. Rapport

Daniel Howell; Ross Tallman; Brian Stock; Maria Fossheim; Thomas de Lange Wenneck; Alf Harbitz; Alfonso Perez-Rodriguez; Arved Staby; Bjarte Bogstad; Berengere Husson; Caroline Aas Tranang; Edda Johannesen; Elena Eriksen; Erik Berg; Georg Skaret; Hannes Höffle; Jane Aanestad Godiksen; Johanna Jennifer Elisabeth Fall; John Tyler Trochta; Kjell Harald Nedreaas; Kristin Windsland; Magnus Aune; Mikko Vihtakari; Olav Nikolai Breivik; Samuel Subbey; Silje Elisabeth Seim; Sofie Gundersen; Sondre Nedreås Hølleland; Stine Karlson; Tone Vollen; Advice on fishing opportunities for Greenland halibut in 2025 and 2026 in ICES subareas 1 and 2 , 2024. Rapport

Daniel Howell; Ross Tallman; Brian Stock; Kotaro Ono; Maria Fossheim; Thomas de Lange Wenneck; Alf Harbitz; Alfonso Perez-Rodriguez; Arved Staby; Bjarte Bogstad; Berengere Husson; Caroline Aas Tranang; Edda Johannesen; Elena Eriksen; Erik Berg; Georg Skaret; Hannes Höffle; Jan Erik Stiansen; Jane Aanestad Godiksen; Johanna Jennifer Elisabeth Fall; John Tyler Trochta; Kjell Harald Nedreaas; Kristin Windsland; Magnus Aune; Mikko Vihtakari; Olav Nikolai Breivik; Samuel Subbey; Silje Elisabeth Seim; Sofie Gundersen; Sondre Nedreås Hølleland; Stine Karlson; Tone Vollen; Advice on fishing opportunities for beaked redfish in 2025 and 2026 in ICES subareas 1 and 2 , 2024. Rapport

Daniel Howell; Ross Tallman; Brian Stock; Kotaro Ono; Maria Fossheim; Thomas de Lange Wenneck; Alf Harbitz; Alfonso Perez-Rodriguez; Arved Staby; Bjarte Bogstad; Berengere Husson; Caroline Aas Tranang; Edda Johannesen; Elena Eriksen; Elvar Halldor Hallfredsson; Erik Berg; Georg Skaret; Hannes Höffle; Jan Erik Stiansen; Jane Aanestad Godiksen; Johanna Jennifer Elisabeth Fall; John Tyler Trochta; Kjell Harald Nedreaas; Kristin Windsland; Magnus Aune; Mikko Vihtakari; Olav Nikolai Breivik; Samuel Subbey; Silje Elisabeth Seim; Sofie Gundersen; Sondre Nedreås Hølleland; Stine Karlson; Tone Vollen; Advice on fishing opportunities for Northeast Arctic haddock in 2025 in ICES subareas 1 and 2 , 2024. Rapport

Olav Nikolai Risdal Breivik; Fabian Zimmermann; Edda Johannesen; Kotaro Ono; Johanna Jennifer Elisabeth Fall; Daniel Howell; Anders Nielsen; Incorporation of observation uncertainty in stock assessment using spatio-temporal modeling of catch-at-length and age-at-length survey data ICES Journal of Marine Science, vol. 81, pp. 1195 1208 , (ISSN 1054-3139 1095-9289 ), doi: https://doi.org/10.1093/icesjms/fsae079 , 2024. Vitenskapelig artikkel

Olav Nikolai Breivik; Sindre Vatnehol; Gudmundur J. Òskarsson; Workshop on the assessment and management plan evaluation for Icelandic herring (WKICEHER) 2023. Rapport

Olav Nikolai Risdal Breivik; Anders Nielsen; ​Statistical foundation for stock assessment​ 2023. Vitenskapelig foredrag

Olav Nikolai Risdal Breivik; Anders Nielsen; ​​​A practical course in selecting configurations for the state space assessment model SAM​​ 2023. Vitenskapelig foredrag

Nora Røhnebæk Aasen; Olav Nikolai Breivik; Hanne Therese Wist Rognebakke; Punktestimat fra romlig modell som parameter i XGBoost modell 2023. Rapport

C.A. O'Leary; Olav Nikolai Breivik; Integrating survey and observer data improves the predictions of New Zealand spatio-temporal models ICES Journal of Marine Science, vol. 80, pp. 1991 2007 , (ISSN 1054-3139 1095-9289 ), doi: https://doi.org/10.1093/icesjms/fsad129 , 2023. Vitenskapelig artikkel

Olav Nikolai Breivik; Detecting significant retrospective patterns and spatio-temporal modeling of abundance indices 2023. Vitenskapelig foredrag

Olav Nikolai Breivik; A spatio-temporal index model that incorporates uncertainty in age-at-length, and utilizing the uncertainty in stock assessment 2023. Vitenskapelig foredrag

Olav Nikolai Breivik; Integrating survey and observer data improves the predictions of New Zealand spatio-temporal models ICES Journal of Marine Science, (ISSN 1054-3139 1095-9289 ), doi: https://doi.org/10.1093/icesjms/fsad129 , 2023. Fagartikkel

Daniel Howell; Ross Tallman; Brian Stock; Kotaro Ono; Maria Fossheim; Thomas de Lange Wenneck; Alf Harbitz; Arved Staby; Bjarte Bogstad; Berengere Husson; Caroline Aas Tranang; Edda Johannesen; Elena Eriksen; Erik Berg; Georg Skaret; Hannes Höffle; Jan Erik Stiansen; Jane Aanestad Godiksen; Johanna Jennifer Elisabeth Fall; John Tyler Trochta; Kjell Harald Nedreaas; Kristin Windsland; Mikko Vihtakari; Olav Nikolai Breivik; Samuel Subbey; Silje Elisabeth Seim; Sofie Gundersen; Sondre Nedreås Hølleland; Stine Karlson; Tone Vollen; Advice on fishing opportunities for Barents Sea capelin in 2024 — ICES subareas 1 and 2 excluding Division 2.a west of 5°W , 2023. Rapport

Olav Nikolai Breivik; Magne Tommy Aldrin; Edvin Fuglebakk; Anders Nielsen; Detecting significant retrospective patterns in state space fish stock assessment Canadian Journal of Fisheries and Aquatic Sciences, vol. 80, pp. 1509 1518 , (ISSN 0706-652X 1205-7533 ), doi: https://doi.org/10.1139/cjfas-2022-0250 , 2023. Vitenskapelig artikkel

Daniel Howell; Jane Aanestad Godiksen; Caroline Aas Tranang; Erik Berg; Ross Tallman; Bjarte Bogstad; Olav Nikolai Breivik; Elena Eriksen; Johanna Jennifer Elisabeth Fall; Maria Fossheim; Harald Gjøsæter; Sofie Gundersen; Elvar Halldor Hallfredsson; Hannes Höffle; Kjell Harald Nedreaas; Georg Skaret; Arved Staby; Brian Stock; Samuel Subbey; John Tyler Trochta; Tone Vollen; Kristin Windsland; Arctic Fisheries Working Group (AFWG; outputs from 2022 meeting) ICES Scientific Reports, vol. 5, pp. 1 507 , (ISSN 2618-1371 ), doi: https://doi.org/10.17895/ices.pub.20012675 , 2023. Fagartikkel

Olav Nikolai Breivik; Anders Nielsen; Prediction–variance relation in a state-space fish stock assessment model ICES Journal of Marine Science, vol. 78, pp. 3650 3657 , (ISSN 1054-3139 1095-9289 ), doi: https://doi.org/10.1093/icesjms/fsab205 , 2021. Vitenskapelig artikkel

Daniel Howell; Erik Berg; Natalia A. Yaragina; Bjarte Bogstad; Olav Nikolai Breivik; Gjert Endre Dingsør; Johanna Jennifer Elisabeth Fall; Harald Gjøsæter; Torild Johansen; Knut Korsbrekke; Kjell Harald Nedreaas; Lise Helen Ofstad; Kotaro Ono; Alfonso Perez-Rodriguez; Yves Reecht; Silje Elisabeth Seim; Benchmark workshop for Barents Sea and Faroese stocks (WKBARFAR 2021) doi: https://doi.org/10.17895/ices.pub.7920 , 2021. Rapport

Erik Joel Steinar Olsen; Sondre Aanes; Magne Tommy Aldrin; Olav Nikolai Breivik; Edvin Fuglebakk; Daisuke Goto; Nils Olav Handegard; Cecilie Hansen; Arne Johannes Holmin; Daniel Howell; Espen Johnsen; Natoya Jourdain; Knut Korsbrekke; Kotaro Ono; Håkon Magne Otterå; Holly Ann Perryman; Samuel Subbey; Guldborg Søvik; Ibrahim Umar; Sindre Vatnehol; Jon Helge Vølstad; Final report for the REDUS project - Reduced Uncertainty in Stock Assessment , 2021. Rapport

Olav Nikolai Breivik; Fredrik L Aanes; Guldborg Søvik; Asgeir Aglen; Sigbjørn Mehl; Espen Johnsen; Predicting abundance indices in areas without coverage with a latent spatio-temporal Gaussian model ICES Journal of Marine Science, vol. 78, pp. 2031 2042 , (ISSN 1054-3139 1095-9289 ), doi: https://doi.org/10.1093/icesjms/fsab073 , 2021. Vitenskapelig artikkel

Natoya Jourdain; Olav Nikolai Breivik; Edvin Fuglebakk; Sondre Aanes; Jon Helge Vølstad; 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, vol. 77, pp. 859 869 , (ISSN 1054-3139 1095-9289 ), doi: https://doi.org/10.1093/icesjms/fsaa013 , 2020. Vitenskapelig oversiktsartikkel/review

Olav Nikolai Breivik; Template Model Builder and fish stock assessment course 2020. Vitenskapelig foredrag

Daniel Howell; Richard David Marriott Nash; Amy Schueller; Olav Nikolai Breivik; Bjarte Bogstad; Johanna Jennifer Elisabeth Fall; Edda Johannesen; Alexandros Kokkalis; Alfonso Perez-Rodriguez; Benchmark Workshop for Demersal Species (WKDEM). ICES Scientific Reports. 2:31. , 2020. Rapport

Olav Nikolai Risdal Breivik; Anders Nielsen; Fish stock assessment: SAM and TMB​ 2020. Vitenskapelig foredrag

Olav Nikolai Breivik; Time varying observation variance in stock assessment, and a spatial model for estimating abundance of marine mammals. 2019. Vitenskapelig foredrag

Fredrik L Aanes; Sondre Aanes; Olav Nikolai Breivik; Exploratory data analysis of the Winter Survey in the Barents Sea 1994-2018 2019. Rapport

Olav Nikolai Breivik; Magne Tommy Aldrin; Analyse av hvilken effekt tildeling av FRIPRO-midler har på forskernes vitenskapelige produksjon 2018. Rapport