CoChat
Sign Up
Cited by 236Marine and fisheries researchFish Ecology and Management StudiesOceanographic and Atmospheric Processes

Spatial shifts in spawning habitats of Arcto-Norwegian cod related to multidecadal climate oscillations and climate change

Open access
Sundby, Svein, Nakken, Odd·2008·ICES Journal of Marine Science
DOI 10.1093/icesjms/fsn085
Open this paper in CoChat — free accountOpen PDF

Abstract

Abstract Sundby, S., and Nakken, O. 2008. Spatial shifts in spawning habitats of Arcto-Norwegian cod related to multidecadal climate oscillations and climate change. – ICES Journal of Marine Science, 65: 953–962. Arcto-Norwegian cod tend to produce strong year classes in warm years and poor year classes in cold years. This work shows that spawning intensity at various spawning sites along 1500 km of Norwegian coast is also influenced by climate variations. However, while the recruitment response to temperature is immediate and on an interannual time-scale, the response to changes in spawning site is slower, on a multidecadal time-scale. There have been two cold and two warm periods during the 20th century, cold from 1900 to 1920, warm from 1930 to 1950, cold from 1960 to 1970, and warm since the mid-1980s. A time-series for 1900–1976 on cod roe indices along the coast shows that the southernmost spawning areas are more important during cold periods, and the northernmost ones in warm periods, and coincide with high population fecundity. After 1976, qualitative observations show that there have been poor spawning fisheries in the southernmost spawning areas during the present warm period. From 2003, spawning has been observed along the coast of East Finnmark where it did not transpire during the previous 40 years.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1093/icesjms/fsn085

Cites

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Adult individuals of the Barents Sea cod stock migrate to the Vestfjorden near the Lofoten Islands along the west coast of Norway to spawn, but once there, they select their spawning site based on local temperature and salinity cues, that orient them within the Norwegian Coastal Current.

    “For example, adult individuals of the Barents Sea cod stock migrate to the Vestfjorden near the Lofoten Islands along the west coast of Norway to spawn (Sundby and Nakken, 2008), but once there, they select their spawning site based on local temperature and salinity cues, that orient them within the Norwegian Coastal Current (Ellersten et al., 1989).”

    From Evolutionary and ecological constraints of fish spawning habitats (2015) · cites this paper as Sundby and Nakken, 2008

    Split into 2 atoms — 1 confirmed, 1 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

No references could be resolved yet.

Research works printed but not linked: 50

  1. Bjørke, 1986, Abundance indices and distribution of post larvae and 0-group cod, 127
  2. Cianelli, 2007, Spatial anatomy of species survival: effects of predation and climate-driven environmental variability, Ecology, 88, 635, 10.1890/05-2035 · DOI
  3. deYoung, 1993, On recruitment and distribution of Atlantic cod (Gadus morhua) off Newfoundland, Canadian Journal of Fisheries and Aquatic Sciences, 50, 2729, 10.1139/f93-298 · DOI
  4. Drinkwater, 2006, The regime shift of the 1920s and 1930s in the North Atlantic, Progress in Oceanography, 68, 134, 10.1016/j.pocean.2006.02.011 · DOI
  5. Egil's Saga, 1960, Egil's Saga, 259
  6. Ellertsen, 1989, Relations between temperature and survival of eggs and first feeding larvae of the North-East Arctic cod (Gadus morhua L.), Rapports et Procès-Verbaux des Réunions du Conseil International pour l'Exploration de la Mer, 191, 209
  7. Furevik, 2002, Anticipated changes in the Nordic Seas marine climate, Fisken og Havet, 2002, 4
  8. Gjøsæter, 1998, The population biology and exploitation of capelin (Mallotus villosus) in the Barents Sea, Sarsia, 83, 453, 10.1080/00364827.1998.10420445 · DOI
  9. Godø, 1984, Cod (Gadus morhua L.) off Møre – composition and migration, 591
  10. Godø, 1984, Migration, mingling and homing of North-east Arctic cod from two separate spawning grounds, 289
  11. Godø, 1986, Dispersion and mingling of cod from various nursery and feeding areas along the Norwegian cost and in the Barents Sea, 663
  12. Godø, 1984, Acoustic estimates of cod off Lofoten and Møre in 1984, 10
  13. Gray, 2004, A tree-ring based reconstruction of the Atlantic Multidecadal Oscillation since 1567 A.D, Geophysical Research Letters, 31, 1, 10.1029/2004GL019932 · DOI
  14. Helle, 1999, The relation of spatial distribution of early juvenile cod (Gadus morhua L.) in the Barents Sea to zooplankton density and water flux during the period 1978–1984, ICES Journal of Marine Science, 56, 5, 10.1006/jmsc.1998.0427 · DOI
  15. Hurrell, 2003, An overview of the North Atlantic Oscillation, 1, 10.1029/134GM01 · DOI · Paper page
  16. Hylen, 1961, Torskeundersøkelser i Lofoten og Barentshavet i 1960 (Investigations on cod in Lofoten and in the Barents Sea in 1960), Fiskets Gang, 5, 101
  17. Iversen, 1934, Some observations on cod in northern waters, Report on Norwegian Fishery and Marine Investigations, 4, 1
  18. Jobling, 1981, Temperature tolerance and the final preferendum—rapid methods for the assessment of optimum growth temperatures, Journal of Fish Biology, 19, 439, 10.1111/j.1095-8649.1981.tb05847.x · DOI
  19. Jørgensen, 1990, Long-term changes in age at maturity of Northeast Arctic cod (Gadus morhua L.), Journal du Conseil International pour l'Exploration de la Mer, 46, 235, 10.1093/icesjms/46.3.235 · DOI
  20. Kjesbu, 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, 303, 10.1016/S1385-1101(98)00029-X · DOI
  21. Marshall, 1999, Total lipid energy as a proxy for total egg production by fish stocks, Nature, 402, 288, 10.1038/46272 · DOI
  22. Maslov, 1972, Migration of the Barents Sea cod, 43
  23. Michalsen, 1998, Growth of North-east Arctic cod (Gadus morhua L.) in relation to ambient temperature, ICES Journal of Marine Science, 55, 863, 10.1006/jmsc.1998.0364 · DOI
  24. Nakken, 1994, Causes of trends and fluctuations in the Arcto-Norwegian cod stock, ICES Marine Science Symposia, 198, 212
  25. Nakken, 2002, Retrospective review of management advice and TAC's for some stocks, 1
  26. Nakken, 1987, The distribution and growth of Northeast Arctic cod in relation to bottom temperatures in the Barents Sea, 1978–1984, Fisheries Research, 5, 243, 10.1016/0165-7836(87)90044-0 · DOI
  27. Norges fiskerier, Norges offisielle statistikk. Fiskeridirektøren, Fishery statistics of Norway (in Norwegian), 1910
  28. Otterlei, 1999, Temperature- and size-dependent growth of larval and early juvenile cod (Gadus morhua L.): a comparative study between and Norwegian coastal cod and Northeast Arctic cod, Canadian Journal of Fisheries and Aquatic Sciences, 56, 2099, 10.1139/f99-168 · DOI
  29. Ottersen, 1996, Environmental impact on variability in recruitment, larval growth and distribution of Arcto-Norwegian cod, 136
  30. Ottersen, 2000, Covariability in early growth and year-class strength of Barents Sea cod, haddock and herring: the environmental link, 339
  31. Ottersen, 1998, Ambient temperature and distribution of North-east Arctic cod, ICES Journal of Marine Science, 55, 67, 10.1006/jmsc.1997.0232 · DOI
  32. Pedersen, 1984, Variation of peak spawning of Arcto-Norwegian cod during the period 1929–1982 based on indices estimated from fisheries statistics, 301
  33. Planque, 1998, Interannual variability in temperature and the recruitment of Irish Sea cod, Marine Ecology Progress Series, 172, 101, 10.3354/meps172101 · DOI
  34. Planque, 1999, Temperature and the recruitment of Atlantic cod (Gadus morhua), Canadian Journal of Fisheries and Aquatic Sciences, 56, 2069, 10.1139/f99-114 · DOI
  35. Ponomarenko, 1984, Survival of bottom-dwelling young cod in the Barents Sea and factors determining it, 192
  36. Rollefsen, 1933, The otolith of the cod, Fiskeridirektoratets Skrifter Serie Havundersøkelser, 4, 1
  37. Skjoldal, 1989, Pelagic production and variability of the Barents Sea ecosystem, 241
  38. Stenevik, 2007, Impacts of climate change on commercial fish stocks in Norwegian waters, Marine Policy, 31, 19, 10.1016/j.marpol.2006.05.001 · DOI
  39. Sundby, 1994, The influence of bio-physical processes on fish recruitment in an Arcto-boreal ecosystem, 189
  40. Sundby, 2000, Recruitment of Atlantic cod stocks in relation to temperature and advection of copepod populations, Sarsia, 85, 277, 10.1080/00364827.2000.10414580 · DOI
  41. Sundby, 1987, Kartlegging av gytefeltene for norsk-arktisk torsk i Nord-Norge og beregning av eggproduksjonen i årene 1983–1985 (Spatial distribution and production of eggs from Northeast-arctic cod at the coast of Northern Norway 1983–1985), Fisken og Havet, 1987, 1
  42. Sundby, 1994, Life history of the Arcto-Norwegian cod stock, ICES Cooperative Research Report, 205, 12
  43. Suthers, 1993, Dispersal and growth of pelagic juvenile Arcto-Norwegian cod (Gadus morhua L.), inferred from otolith microstructure and water temperature, ICES Journal of Marine Science, 50, 261, 10.1006/jmsc.1993.1028 · DOI
  44. Sutton, 2005, Atlantic Ocean forcing of North American and European summer climate, Science, 309, 115, 10.1126/science.1109496 · DOI
  45. Sætersdal, 1964, The decline of the skrei fisheries. A review of the landing statistics 1866–1957 and an evaluation of the effects of the postwar increase in the total exploitation of the Arctic cod, Fiskeridirektoratets Skrifter Series Havundersøkelser, 13, 56
  46. Sætersdal, 1987, Ecological adaptation of reproduction in Northeast Arctic cod, Fisheries Research, 5, 253, 10.1016/0165-7836(87)90045-2 · DOI
  47. Toresen, 2000, Variation in abundance of Norwegian spring-spawning herring (Clupea harengus, Clupeidae) throughout the 20th century and the influence of climate fluctuations, Fish and Fisheries, 1, 231, 10.1046/j.1467-2979.2000.00022.x · DOI
  48. Trout, 1956, The Bear Island cod: migrations and movements, 51
  49. Vikebø, 2005, The combined effect of transport and temperature on distribution and growth of larvae and pelagic juveniles of Arcto-Norwegian cod, ICES Journal of Marine Science, 62, 1375, 10.1016/j.icesjms.2005.05.017 · DOI
  50. Vikebø, 2007, Impacts of a reduced THC on growth, distribution and recruitment of Arcto-Norwegian cod, Fisheries Oceanography, 16, 216, 10.1111/j.1365-2419.2007.00427.x · DOI

Cited by

Sorted by citations

Authors
Sundby, S., & Nakken, O.
Affiliations
  • Bjerknes Centre for Climate Research (NO)
  • Norwegian Institute of Marine Research (NO)
Corresponding author
Sundby, Svein
ORCID
Sundby, Svein
Venue
ICES Journal of Marine Science
Publisher
Oxford University Press (OUP)
Published
2008-06-02
Volume
65
Issue
6
Pages
953-962
ISSN
  • 1054-3139 (ISSN-L)
  • 1095-9289
DOI
10.1093/icesjms/fsn085
OpenAlex
W2094171438
Cited by
236
References
0
Citations by year
2026: 9 · 2025: 13 · 2024: 9 · 2023: 10 · 2022: 12 · 2021: 15 · 2020: 19 · 2019: 7 · 2018: 14 · 2017: 12 · 2016: 9 · 2015: 20 · 2014: 15 · 2013: 24 · 2012: 12
FWCI
10.82
Type
journal article
Language
en
Open access
Licence
Locations
  • ICES Journal of Marine Science (publishedVersion, cc-by-nc)
  • NORA - Norwegian Open Research Archives (submittedVersion, other-oa)
Funders
  • Havforskningsinstituttet
  • Norges Forskningsråd
Topics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Marine and fisheries research
  • Physical Sciences › Environmental Science › Nature and Landscape Conservation › Fish Ecology and Management Studies
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
Keywords
Gadus morhua, spawning grounds, climate change, sea surface temperature, recruitment (biology), fecundity, East Finnmark, Norwegian coast

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review