Olav Kjesbu
Arbeidsområde
- Rekrutteringsbiologi
- Reproduksjonsbiologi
- Veiledning av studenter
- Prosjektledelse, ulike prosjekter
Curriculum Vitae
Havforskningsinstituttet, Postboks 1870, 5817 Bergen
Tlf.: 55238500 (sentralbord); Mobil: 93047611
Faks: 55238555
E-post: olav.kjesbu@imr.no
Utdannelse
1988: Dr. scient ., Institutt for fiskeribiologi, Universitetet i Bergen
1982: Cand. scient ., Institutt for fiskeribiologi, Universitetet i Bergen
1979-1982: Universitet i Bergen (Mat.Nat.)
1975-1978: Universitet i Oslo (Mat.Nat)
Ansettelser
Mars 2017 -: Forskningssjef
Mai 2014 - mars 2017 : Direktør, Hjortsenteret f or marin økosystemdy (forskningsnettverk mellom HI, UiB, Nansensenteret og Uni Research, ca. 100 forskere)
Mai 2010 - september 2014: Forskningsgruppeleder "Bunnfisk"
September 2012 - september 2016: Professor-II CEES
2004-2007: Faggruppeleder : ’Rekruttering og atferdsbiologi’
2001-2003: Programleder : ‘Reproduksjon og tidliger livsstadier hos fisk og skalldyr’
1997-2000: Programlede r: ‘Reproduksjn og rekruttering’
1996: Seniorforsker (1183)
1988: Forsker (1009)
1985-1988: Utdanningsstipendiat , Norges Fiskeriforskningsråd
1984-1985: Lektor (Voss Gymnas)
Gjesteforsker
2000: The Southwest Fisheries Science Center, La Jolla, California, USA (NFR) (3 mnd)
1991/1992: The Fisheries Laboratory, Lowestoft, England (NFR) (6 mnd.)
1986 og 1987: The Fisheries Laboratory, Lowestoft, England (NFR) (flere reisestipend)
Publikasjoner
Vitenskapelige artikler (NVI)
2024
Life-history parameters of adult females of Merluccius capensis (Gadidae) off the south coast of South Africa
Journal of Fish Biology
2024
Ocean warming shapes embryonic developmental prospects of the next generation in Atlantic cod
ICES Journal of Marine Science
81
p. 733-747
2024
Spawning fish maintains trophic synchrony across time and space beyond thermal drivers
Ecology
105
2024
Northeast Atlantic fish stock productivity hindcasts and forecasts from a Bayesian framework reveal pronounced climate-induced dynamics
Fish and Fisheries
2023
Poleward spawning of Atlantic mackerel (Scomber scombrus) is facilitated by ocean warming but triggered by energetic constraints
ICES Journal of Marine Science
2023
Recruitment regime shifts and nonstationarity are widespread phenomena in harvestable stocks experiencing pronounced climate fluctuations
Fish and Fisheries
2023
Half a century of high-latitude fisheries oceanography research on the "recruitment problem" in Northeast Arctic cod (Gadus morhua)
ICES Journal of Marine Science
80
p. 1179-1201
2023
Half a century of high-latitude fisheries oceanography research on the "recruitment problem" in Northeast Arctic cod (Gadus morhua)
ICES Journal of Marine Science
80
p. 1179-1201
2023
Latitudinally distinct stocks of Atlantic cod face fundamentally different biophysical challenges under on-going climate change
Fish and Fisheries
p. 1-24
2022
Long-term interplay between harvest regimes and biophysical conditions may lead to persistent changes in age at sexual maturity of Northeast Arctic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
79
p. 576-586
2022
Tracking oocyte development and the timing of skipped spawning for north-east Arctic haddock (Melanogrammus aeglefinus)
Journal of Fish Biology
100
p. 1464-1474
2022
Is it possible to photoperiod manipulate spawning time in planktivorous fish ? A long-term experiment on Atlantic herring
Journal of Experimental Marine Biology and Ecology
552
p. 1-10
2022
Linking the dynamic organization of the ovary with spawning dynamics in pelagic fishes
Marine Biology
169
2022
Increasing temperature and prey availability affect the growth and swimming kinematics of Atlantic herring (Clupea harengus) larvae
Journal of Plankton Research
44
p. 401-413
2021
Highly mixed impacts of near-future climate change on stock productivity proxies in the North East Atlantic
Fish and Fisheries
23
p. 601-615
2021
Bioenergetics of egg production in Northeast Atlantic mackerel changes the perception of fecundity type and annual trends in spawning stock biomass
Progress in Oceanography
198
2021
Establishing the Foundation for the Global Observing System for Marine Life
Frontiers in Marine Science
8
2021
First thorough assessment of de novo oocyte recruitment in a teleost serial spawner, the Northeast Atlantic mackerel (Scomber scombrus) case
Scientific Reports
11
2021
Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic
Proceedings of the National Academy of Sciences of the United States of America
118
2021
Adult body growth and reproductive investment vary markedly within and across Atlantic and Pacific herring: a meta-analysis and review of 26 stocks
Reviews in Fish Biology and Fisheries
31
p. 685-708
2021
Drift indices confirm that rapid larval displacement is essential for recruitment success in high-latitude oceans
Frontiers in Marine Science
8
p. 1-13
2021
Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure
Scientific Reports
11
p. 1-11
2020
Contrasting post-ovulatory follicle production in fishes with different spawning dynamics
Fisheries Research
231
p. 1-8
2020
The legacy of Johan Hjort: Challenges and critical periods ‒ past, present and future
ICES Journal of Marine Science
2020
Management of transboundary and straddling fish stocks in the Northeast Atlantic in view of climate-induced shifts in spatial distribution
Fish and Fisheries
21
p. 1008-1026
2020
Environmental stressors may cause unpredicted, notably lagged life-history responses in adults of the planktivorous Atlantic herring
Progress in Oceanography
181
2020
Development of a new ‘ultrametric’ method for assessing spawning progression in female teleost serial spawners
Scientific Reports
2020
From gametogenesis to spawning: How climate-driven warming affects teleost reproductive biology
Journal of Fish Biology
97
p. 607-632
2020
Environmental influences on Norwegian spring-spawning herring (Clupea harengus L.) larvae reveal recent constraints in recruitment success
ICES Journal of Marine Science
2019
New insights in oocyte dynamics shed light on the complexities associated with fish reproductive strategies
Scientific Reports
9
p. 1-15
2019
Otolith growth and zone formation during first maturity and spawning of Atlantic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
77
p. 113-123
2019
Temperature and age effects on latitudinal growth dynamics of the commercially valuable gadoid Northeast Arctic saithe (Pollachius virens)
Fisheries Research
213
p. 94-104
2018
Variation in growth, morphology and reproduction of the bearded goby (Sufflogobius bibarbatus) in varying oxygen environments of northern Benguela
Journal of Marine Systems
188
p. 81-97
2017
Ontogenetic development of otolith shape during settlement of juvenile Barents Sea cod (Gadus morhua)
ICES Journal of Marine Science
74
p. 2389-2397
2017
Oogenesis and reproductive investment of Atlantic herring are functions of not only present but long-ago environmental influences as well
Proceedings of the National Academy of Sciences of the United States of America
114
p. 2634-2639
2017
Oogenesis and reproductive investment of Atlantic herring are functions of not only present but long-ago environmental influences as well
PNAS
114
p. 2634-2639
2017
Timecourse of oocyte development in saithe Pollachius virens
Journal of Fish Biology
90
p. 109-128
2016
Contrasting batch fecundity estimates of albacore (Thunnus alalunga), an indeterminate spawner, by different laboratory techniques
Fisheries Research
176
p. 76-85
2016
Reproductive tactics of male bearded goby (Sufflogobius bibarbatus) in anoxic and hypoxic waters
Journal of Sea Research
109
p. 29-41
2016
The North Atlantic spring-bloom system-where the changing climate meets the winter dark
Frontiers in Marine Science
3:28
p. 1-12
2016
Preferential amplification of repetitive DNA during whole genome sequencing library creation from historic samples
Science and Technology of Archaeological Research
2
p. 36-45
2016
Per Solemdal (1941-2016) – an unconventional marine Scientist
Marine Biology Research
12
p. 559-662
2015
Ecosystem processes are rarely included in tactical fisheries management
Fish and Fisheries
17
p. 165-175
2015
Recent advances in statistical methodology applied to the Hjort liver index time series (1859-2012) and associated influential factors
Canadian Journal of Fisheries and Aquatic Sciences
73
p. 279-295
2015
Stereological comparison of oocyte recruitment and batch fecundity estimates from paraffin and resin sections using spawning albacore (Thunnus alalunga) ovaries as a case study
Journal of Sea Research
95
p. 226-238
2015
Skipped spawning in Northeast Arctic haddock Melanogrammus aeglefinus
Marine Ecology Progress Series
526
p. 143-155
2015
Connecting the seas of Norden
Nature Climate Change
5
p. 89-92
2014
Variability of northeast Arctic cod (Gadus morhua) distribution on the main spawning grounds in relation to biophysical factors
ICES Journal of Marine Science
71
p. 1317-1331
2014
Experimental parameterisation of principal physics in buoyancy variations of marine teleost eggs
PLOS ONE
9
2014
Synergies between climate and management for Atlantic cod fisheries at high latitudes
Proceedings of the National Academy of Sciences of the United States of America
111
p. 3478-3483
2014
Making use of Johan Hjort's "unknown" legacy: Reconstruction of a 150-year coastal time-series on northeast Arctic cod (Gadus morhua) liver data reveals long-term trends in energy allocation patterns
ICES Journal of Marine Science
71
p. 2053-2063
2013
A simulation framework for evaluating fisheries management decisions using environmental information
ICES Journal of Marine Science
70
p. 743-754
2013
Reproductive biology of horse mackerel Trachurus capensis and Trachurus trecae in Namibia and Angola
African Journal of Marine Science
35
p. 141-150
2013
Contrasting development and delivery of realised fecundity in Atlantic cod (Gadus morhua) stocks from cold and warm waters
Fisheries Research
138
p. 128-138
2013
Size-, energy- and stage dependent fecundity and atresia in the Northeast Arctic haddock Melanogrammus aeglefinus
Fisheries Research
138
p. 120-127
2013
Strategies for partition between body growth and reproductive investment in migratory and stationary populations of spring-spawning Atlantic herring (Clupea harengus L.)
Fisheries Research
138
p. 71-79
2012
Egg buoyancy variability in local populations of Atlantic cod (Gadus morhua)
Marine Biology
159
p. 1969-1980
2012
Frequent skipped spawning in the world's largest cod population
Proceedings of the National Academy of Sciences of the United States of America
109
p. 8995-8999
2012
Dynamics of de novo vitellogenesis in fish with indeterminate fecundity: an application of oocyte packing density theory to European anchovy, Engraulis encrasicolus
Marine Biology
159
p. 757-768
2012
Emergence of an oocytic circumnuclear ring in response to increasing day length in Atlantic herring (Clupea harengus)
Marine Biology
159
p. 341-353
2012
Extent and ecological importance of escape through spawning in sea-cages for Atlantic cod
Aquaculture Environment Interactions
3
p. 35-51
2012
Is spawning time of marine fish imprinted in the genes? A two-generation experiment on local Atlantic cod (Gadus morhua L.) populations from different geographical regions
ICES Journal of Marine Science
69
p. 1722-1728
2012
Seasonal trends in adenylate nucleotide content in eggs of recruit and repeat spawning Atlantic cod (Gadus morhua L.) and implications for egg quality and buoyancy
Journal of Sea Research
73
p. 63-73
2011
Greenland halibut (Reinhardtius hippoglossoides) spawn annually but successive cohorts of oocytes develop over 2 years, complicating correct assessment of maturity
Canadian Journal of Fisheries and Aquatic Sciences
68
p. 201-209
2011
Sexual dimorphism of drumming muscles in European hake (Merluccius merluccius)
Environmental Biology of Fishes
91
p. 7-13
2011
Evaluation of the frequency of skipped spawning in Norwegian spring-spawning herring
Journal of Sea Research
65
p. 327-332
2011
The role of fecundity regulation and abortive maturation in the reproductive strategy of Norwegian spring-spawning herring (Clupea harengus)
Marine Biology
158
p. 1287-1299
2011
Quantification of primary and secondary oocyte production in Atlantic cod (Gadus morhua) by simple oocyte packing density theory
Marine and Coastal Fisheries
3
p. 92-105
2010
The fate of vitellogenic follicles in experimentally monitored Atlantic cod Gadus morhua (L.): Application to stock assessment
Fisheries Research
104
p. 27-37
2010
Investment in maturity-at-age and -length in northeast Atlantic cod stocks
Fisheries Research
104
p. 89-99
2010
Thermal dynamics of ovarian maturation in Atlantic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
67
p. 605-625
2010
Rebuilding depleted fish stocks: biology, ecology, social science, and management strategies
ICES Journal of Marine Science
67
p. 1825-1829
2010
How are the oocytes recruited in an indeterminate fish? Applications of stereological techniques along with advanced packing density theory on European hake (Merluccius merluccius L.)
Fisheries Research
104
p. 56-63
2010
Fecundity and growth of Atlantic cod (Gadus morhua L.) along a latitudinal gradient
Fisheries Research
104
p. 45-55
2010
The reproductive cycle of female Ballan wrasse, Labrus bergylta, in high latitude, temperate waters
Journal of Fish Biology
p. 494-511
2010
Some characteristics of sperm motility in European hake (Merluccius merluccius, L., 1758)
Journal of Applied Ichthyology
26
p. 682-689
2010
Sperm motility in European hake, Merluccius merluccius, and characterization of its spermatozoa concentration and volume, spermatocrit, osmolality and pH
Aquaculture
301
p. 31-36
2010
Long-term changes in the total egg production of Norwegian spring-spawning herring Clupea harengus (L.)—Implications of variations in population structure and condition factor
Fisheries Research
104
p. 19-26
2010
The reproductive cycle of female Ballan wrasse Labrus bergylta in high latitude, temperate waters
Journal of Fish Biology
77
p. 494-511
2010
Stereological calibration of the profile method to quickly estimate atresia levels in fish
Fisheries Research
104
p. 8-18
2010
Do capital breeders like Atlantic herring (Clupea harengus) exhibit sensitive periods of nutritional control on ovary development and fecundity regulation?
Canadian Journal of Fisheries and Aquatic Sciences
67
p. 16-27
2010
Liver energy, atresia and oocyte stage influence fecundity regulation in Northeast Arctic cod
Marine Ecology Progress Series
404
p. 173-183
2009
Advances in methods for determining fecundity: application of the new methods to some marine fishes
Fishery Bulletin
107
p. 148-164
2009
Fecundity estimation by oocyte packing density formulae in determinate and indeterminate spawners: Theoretical considerations and applications
Journal of Sea Research
61
p. 188-196
2009
Effects of egg size, parental origin and feeding conditions on growth of larval and juvenile cod Gadus morhua
Journal of Fish Biology
75
p. 516-537
2009
Fecundity, atresia, and spawning strategies of Atlantic herring (Clupea harengus)
Canadian Journal of Fisheries and Aquatic Sciences
66
p. 2130-2141
2009
Effect of feeding ration on gonad maturation and fat accumulation in Peruvian anchovy (Engraulis ringens Jenyns, 1842) in captivity
Latin American Journal of Aquatic Research
37
p. 181-190
2009
Mechanisms regulating oocyte recruitment and skipped spawning in Northeast Arctic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
66
p. 1582-1596
2009
Oocyte development in captive Atlantic horse mackerel Trachurus trachurus
ICES Journal of Marine Science
66
p. 623-630
2009
Mechanisms regulating oocyte recruitment and skipped spawning in Northeast Arctic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
66
p. 1582-1596
2008
Potential variability in the paternal contribution to stock reproductive potential of Northeast Arctic cod (Gadus morhua)
Journal of Northwest Atlantic Fishery Science
41
p. 71-83
2007
Effects of alkylphenols on the reproductive system of Atlantic cod (Gadus morhua)
Aquatic Toxicology
81
p. 207-218
2007
Evolutionary pressure on reproductive strategies in flatfish and groundfish: Relevant concepts and methodological advancements
Journal of Sea Research
58
p. 23-34
2007
Merluccius capensis spawn in Namibian waters, but do M. paradoxus?
South African Journal of Marine Science
29
p. 379-392
2006
Effects of population size/age structure, condition and temporal dynamics of spawning on reproductive output in Atlantic cod (Gadus morhua)
Ecological Modelling
191
p. 383-415
2006
Continuous light delays sexual maturation and increases growth of Atlantic cod (Gadus morhua L.) in sea cages
ICES Journal of Marine Science
63
p. 365-375
2006
Comparison of various potential fecundity models for north-east Arctic cod Gadus morhua L. using oocyte diameter as a standardizing factor
Journal of Fish Biology
69
p. 1709-1730
2006
Systematic bias in estimates of reproductive potential of an Atlantic cod (Gadus morhua) stock: implications for stock-recruit theory and management.
Canadian Journal of Fisheries and Aquatic Sciences
63
p. 980-994
2006
Gadoid mariculture: Development and future challenges - Introduction
ICES Journal of Marine Science
63
p. 187-191
2006
Association between growth and Pan I* genotype within Atlantic cod full-sibling families
Transactions of the American Fisheries Society
135
p. 241-250
2006
Continuous light delay sexual maturation and increase growth of Atlantic cod (Gadus morhua L.) in sea cages
ICES Journal of Marine Science
63
p. 365-375
2006
Effects of photoperiod and exercise on growth, liver size, and age at puberty in farmed Atlantic cod (Gadus morhua L.)
ICES Journal of Marine Science
63
p. 355-364
2006
Timing and determination of potential fecundity in Atlantic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
63
p. 310-320
2003
Buoyancy of Atlantic cod larvae in relation to developmental stage and maternal influences
Journal of Plankton Research
25
p. 291-307
2003
Apoptosis in regressing follicles from Solea solea and Gadus morhua
Fish Physiology & Biochemistry
28
p. 377-378
2003
Oocyte growth and fecundity regulation by atresia of Atlantic herring (Clupea harengus) in relation to body condition throughout the maturation cycle.
Journal of Sea Research
49
p. 203-219
2003
Variability in condition and growth of Atlantic cod larvae and juveniles reared in mesocosms: environmental and maternal effects.
Journal of Fish Biology
62
p. 706-723
2003
Gonadal development and associated changes in relative liver size and sexual steroids during the reproductive cycle of captive male and female Atlantic cod (Gadus morhua L.)
Comparative Biochemistry and Physiology - Part A: Comparative Physiology
136
p. 641-653
2002
Predictions of realised fecundity and spawning time in Norwegian spring-spawning herring (Clupea harengus)
Journal of Sea Research
48
p. 59-79
2001
A rapid method for estimation of oocyte size and potential fecundity in Atlantic cod using a computer-aided particle analysis system
Journal of Sea Research
46
p. 295-308
2001
Growth, gonadal development and spawning time of Atlantic cod (Gadus morhua) reared under different photoperiods
Aquaculture
203
p. 51-67
2000
Fecundity and recruitment variability of Northeast Arctic Greenland halibut during 1980-1998, with emphasis on 1996-1998
Journal of Sea Research
4
p. 45-54
2000
Effects of fish size on spawning time in Norwegian spring spawning herring (Clupea harengus L.)
Journal of Fish Biology
56
p. 295-310
2000
Effects of fish size on spawning time in Norwegian spring spawning herring (Clupea harengus L.)
Journal of Fish Biology
56
p. 295-310
1999
Total lipid energy as a proxy for total egg production by fish stocks
Nature
402
p. 288-290
1999
Fecundity of Northeast Arctic Greenland halibut (Reinhardtius hippoglosoides)
Journal of Northwest Atlantic Fishery Science
25
p. 29-36
1999
Effects of fish size on spawning time in Norwegian spring spawning herring
Journal of Fish Biology
55
p. 00
1998
Effects of ration on the maturation and fecundity in captive Atlantic herring (Clupea harengus)
Canadian Journal of Fisheries and Aquatic Sciences
55
p. 900-908
1998
Temporal variations in the fecundity of Arcto-Norwegian cod (Gadus morhua) in response to natural changes in food and temperature
Journal of Sea Research
40
p. 303-321
1998
Is spawner biomass a sensitive measure of the reproductive and recruitment potential of Northeast Arctic cod?
Canadian Journal of Fisheries and Aquatic Sciences
55
p. 1766-1783
1996
Differences in growth performance between Arcto-Norwegian and Norwegian coastal cod reared under identical conditions
Journal of Fish Biology
49
p. 108-119
1996
Variation in annual egg production in individual captive Atlantic cod (Gadus morhua)
Canadian Journal of Fisheries and Aquatic Sciences
53
p. 610-620
1996
Oocyte size and structure in relation to blood plasma steroid hormones in individually monitored, spawning Atlantic cod
Journal of Fish Biology
49
p. 1197-1215
1996
Physiological mechanisms of buoyancy in eggs from brackish water cod
Journal of Fish Biology
48
p. 457-477
1995
Effects of periodic starvation on reproductive investment in first-time spawning Atlantic cod (Gadus morhua L.)
Aquaculture
3
p. 159-170
1994
Time of start of spawning in Atlantic cod (Gadus morhua) females in relation to vitellogenic oocyte diameter, temperature, fish length and condition
Journal of Fish Biology
45
p. 719-735
1994
Oocyte recruitment in first-time spawning Atlantic cod (Gadus morhua) in relation to feeding regime
Canadian Journal of Fisheries and Aquatic Sciences
51
p. 1893-1898
1994
Growth and survival of cod larvae (Gadus morhua L.): comparative enclosure studies of Northeast Arctic cod and coastal cod from western Norway.
ICES Marine Science Symposia
198
p. 633-645
1992
Buoyancy variations in eggs of Atlantic cod (Gadus morhua L.) in relation to chorion thickness and egg size, theory and observations
Journal of Fish Biology
41
p. 581-599
1991
A simple method for determining the maturity stages of Northeast Arctic cod (Gadus morhua L.) by in vitro examination of oocytes
Sarsia
75
p. 335-338
1991
Fecundity, atresia, and egg size of captive Atlantic cod (Gadus morhua) in relation to proximate body composition
Canadian Journal of Fisheries and Aquatic Sciences
48
p. 2333-2343
1990
Ovulatory rhythm and a method to determine the stage of spawning in Atlantic cod (Gadus morhua).
Canadian Journal of Fisheries and Aquatic Sciences
47
p. 1185-1193
1989
The spawning activity of cod, Gadus morhua L
Journal of Fish Biology
34
p. 195-206
1989
Oogenesis in cod, Gadus morhua L., studied by light and electron-microscopy
Journal of Fish Biology
34
p. 735-746
1987
Stages of oocyte maturation in the blue whiting, Micromesistius poutassou (Risso, 1826) (Gadidae)
Sarsia
72
p. 345-346
Annet tidsskriftbidrag
2019
Skal videreutvikle havforskningens barnelærdom
Bladet Vesterålen
p. 10-10
2019
Skal videreutvikle havforskningens barnelærdom
Kyst og fjord
2011
Book review of Fish Reproduction edited by Maria João Rocha, Augustine Arukwe and B.G. Kapoor(Science Publisher)
Fish and Fisheries
12
p. 472-473
2010
Method development and evaluation of stock reproductive potential of marine fish Preface
Fisheries Research
104
p. 1-7
Faglige foredrag
2024
Hvorfor har torsken flyttet ut av lofotbassenget
2024
Climate-induced recruitment and productivity dynamics of fishery stocks in the Northeast Atlantic
2024
Reproductive cycle plasticity in Northeast Arctic Cod under changing climate conditions
2024
How to explore climate-induced fish population dynamics? – conceptual frameworks and statistical advancements
2024
Climate impacts on productivity of groundfish in the Northeast Atlantic
2024
Flexibility in the reproductive cycle in Northeast Arctic cod under climate fluctuations
2024
Kvotegrunnlag fremover og klimapåvirkning
2024
Klima, økosystem, fiskebestander og havbruk
2023
Bestandsutvikling og klimaendringer
2023
Is teleost fecundity style a species-characteristic trait? ‒ A re-evaluation of the ovulatory cycle of Atlantic cod (Gadus morhua) in a changing environment
2023
Bridging climate, biophysical and statistical models to identify key drivers of recruitment variability of fish stocks inhabiting different North-East Atlantic ecoregions
2023
The issue of reproductive challenges for cod when waters warm
2023
Hvordan påvirkes skreien av klimaendringene?
2022
Atlantic cod facing climate-driven warming: reproductive physiology under challenging environmental conditions
2022
Behavioural plasticity offset thermal drivers of spawning phenology in cod
2022
Atlantic cod facing climate-driven warming: Reproductive physiology under challenging environmental conditions
2019
How will ocean warming affect reproductive performance of Atlantic cod, Gadus morhua?
2019
Pre-programmed or flexible? Lab and field studies don't add up and suggest strong individual influence on spawning time in Atlantic cod
2019
Fish essential ocean variables.
2019
Climate vulnerability assessments
2019
How will ocean warming affect the reproductive performance of Atlantic cod, Gadus morhua?
2019
40 years of Norwegian experience in management of transboundary fish stocks: lessons learned and how climate change may interact. Transboundary Fisheries Management in Changing North Atlantic and Pacific Oceans: taking stock, future scenarios
2019
Climate vulnerability assessments ‒ a mechanistic approach.
2018
Kartlegging av gytetid for torsk − Innsamling av gonadeprøver til ScaleClim og noen resultater fra prosjektet.
2018
Mechanisms behind changes in Northeast Atlantic cod stocks during climate warming
2018
Is Northeast Atlantic mackerel spawning activity extending northwards?
2018
Recruitment dynamics of Norwegian spring-spawning herring: tracing the fate of early developing oocytes to the 0-group stage
2018
A joint effort across marine laboratories for improving spawning frequency estimations in fishes
2018
Climate vulnerability of marine fish, response traits and mechanisms
2018
Kartlegging av gytetid for torsk – Innsamling av gonadeprøver til ScaleClim og noen resultater fra prosjektet
2016
Plenty of cod in the Barents Sea ̶ an effect of climate or fisheries management?
2016
Nordatlanterens våroppblomstringssystem - der hvor klimaendringene møter vintermørket
2016
Reproductive ecology of Atlantic cod: scope, concepts and methods of study at IMR, Bergen, Norway
2016
The implications of climate change on oceans and marine food systems
2016
Crucial factors affecting reproductive investment of marine fishes in a changing climate
2016
Variation in growth and reproduction of bearded goby (Sufflogobius bibarbatus) in hypoxic waters of northern Benguela.
2015
Exemplification of stock productivity changes in the North East Atlantic in warming waters
2014
"Eco-Harvest Control Rules"
2014
Samfunnsmessig betydning av marint mangfold med hovedvekt på fisk
2014
“…Sir John Murray’s well-known scientific views and his original ideas…”: from Johan Hjort’s mark of respect to the recent formation of the Hjort Centre for Marine Ecosystem Dynamics in Bergen, Norway
2014
Hjortsenteret – felles innsats for studier av de store marine økosystemene
2014
Do eggs collected in egg surveys accurately reflect adult fecundities?
2014
Some like it cold – Consequence of warming seas for the distribution of large bodied fish
2014
Population differentiation and local adaptation in Atlantic cod
2013
A positive outlook for cod in the Barents Sea: Unexpected synergies between climate and management
2013
A positive outlook for cod in the Barents Sea: Synergies between climate and management
2013
Skipped spawning in female Northeast Arctic gadoids
2013
Maternal effects and the match-mismatch hypothesis under a warming climate: the case of cod spawning in the Lofoten area
2011
Temperature, fish size, spawning time and reproductive success of Atlantic cod
2011
Spawning omission and fecundity regulation in the Northeast Arctic haddock (Melanogrammus aeglefinus)
2011
The link between temperature, fish size, spawning time and reproductive success of Atlantic cod
2010
Climate-linked effects on maturation and spawning of Atlantic cod and implications for fisheries
2009
Does skipped spawning occur for cod and herring?
2009
From “where” and “when” to “what” and “why”: archival tags for monitoring “complex” behaviours in fish
2008
Induction of skipped spawning in herring
2008
Assessment of the occurrence and dynamics of skipped spawning in Norwegian spring-spawning herring (Clupea harengus)
2007
Timing and fecundity determination in Norwegian Spring Spawning herring
2007
Timing and determination of fecundity and skipped spawning in Atlantic cod
2007
Timing and determination of skipped spawning in Atlantic cod
Poster
2023
Spawning fish maintain trophic synchrony across time and space beyond thermal drivers
2019
How climate change may affect reproductive performance of Atlantic cod
2019
Otoliths as life history indicators
2019
From oogenesis to embryonic development: How climate change may affect reproductive performance of Atlantic cod
2019
The combination of climate change and a positive Atlantic Multidecadal Oscillation phase since 2004 may be a cause of suppressed recruitment success in Norwegian spring spawning herring
2015
Does historic DNA provide genomic evidence for recent selection in Atlantic cod?
2015
Fluctuations in life history traits of sexually mature Norwegian spring-spawning herring (Clupea harengus L.) over the last two decades mediated by ocean temperature and density-dependent effects.
2014
Reproduction and growth of the suboxia tolerant bearded goby on the Namibian shelf
2014
Reproduction and growth of the suboxia tolerant bearded goby on the Namibian shelf
2014
Otoliths as life history indicators
2014
Spawning zones in cod otoliths: Do they really reflect spawning?
2014
Experimental study of post-ovulatory follicles in saithe (Pollachius virens) for validation of otolith spawning zones
2013
Density-dependent post-recruitment dynamics in the Northeast Arctic and North Sea saithe
2013
Environmental and demographic Controls on the distribution of North East Arctic cod spawning around the Lofoten Islands
2013
Can otoliths and post-ovulatory follicles tell the spawning history of saithe (Pollachius virens)
2011
Skipped spawning in Northeast Arctic gadoids
2009
The incidence of skipped spawning in Northeast Arctic gadoids
2007
Frequency of skipped spawning in Norwegian spring-spawning herring
2006
Oocyte development in Atlantic cod (Gadus morhua L.): Trypsin-like specific activity, capacity for protein synthesis and proteomics
Rapporter og avhandlinger
2018
Otolith structure as indicator of key life history events in Atlantic cod (Gadus morhua)
2017
Reproductive traits across the Atlantic herring (Clupea harengus L.) stock complex
2012
Extensive otolith archive opens for reconstruction of fish life history. ICES CM 2012/J:28 (poster)
2012
Rapport fra utvalg til å vurdere fremtidig utvikling i våre mest sentrale fiskebestander
2007
Interaction and integration of observation and models – the EcoFish approach. ICES CM 2007/R:14
2006
Oocyte development in Atlantic cod (Gadus morhua L.): Trypsin-like specific activity, capacity for protein synthesis and proteomics
2003
Report of the Working Group on Modern Approaches to Assess Maturity and Fecundity of Warm- and Cold-Water Fish and Squids
2001
Relationship between atresia, fish size and condition in Icelandic cod (Gadus morhua L.). ICES CM 2001/J:19
1999
Variability in individual and population fecundity of Northeast Arctic Greenland halibut with emphasis on 1996-1998, Arctic Fisheries Working Group (poster)
1999
Lysing in namibiske farvann - en økologisk tilspasning til et oppstrømningssystem. Fisken og Havet Særnummer 2. side 68-75
1998
Fecundity of Greenland halibut (Reinhardtius hippoglossoides) in the north east Arctic. ICES CM 1998/O:29
1992
Spawning strategy and effect of feeding. In Controlled Reproduction – Broodstock and Larval Mangement, Minisymposium, 18 October 1992.
1992
The effects of maternal status of Arcto-Norwegian cod on egg quality and vitality of early larvae. I. The collection and characteristics of the cod females, a pilot study
1992
The effects of maternal status of Arcto-Norwegian cod on egg quality and vitality of early larvae. II. Preliminary results of the experiment in 1992
1988
Fecundity and maturity of cod (Gadus morhua L.) from northern Norway. ICES CM 1988/G:28
1988
Aspects of the reproduction in cod (Gadus morhua L.) : oogenesis, fecundity, spawning in captivity and stage of spawning
1982
Hunnenes modningssyklus hos kolmule Micromesistius poutassou (Risso, 1810)
Nyheter
Nyheter
- (14.03.2024) Torsk kan justere seg etter klimaendringer
- (23.01.2024) Denne figuren viser kor lite suksess skreien har hatt i rekrutteringa
- (17.04.2023) Varmere hav kan sette en stopper for torskegytingen i sør
- (08.04.2022) Hvordan påvirkes fiskeriene av klimaendringer?
- (08.03.2022) Klimaendringar har blanda effekt på fiskebestandar
- (21.04.2021) Langvarig fiske har truleg ikkje endra genane til torsken
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