Anker-Nilssen, T. 1992. Food supply as a determinant of reproduction and population development in Norwegian Puffins Fratercula arctica. Dr. scient. thesis, University of Trondheim.

Anker-Nilssen, T. and Røstad, O.W. 1993. Census and monitoring of Puffins Fratercula arctica on Røst, N Norway, 1979-1988. Ornis Scandinavica 24(1): 1–9. (https://doi.org/10.2307/3676402)

Anker-Nilssen, T. and Aarvak, T. 2006. Tidsseriestudier av sjøfugler i Røst kommune, Nordland. Resultater med fokus på 2004 og 2005. NINA Rapport 133, Norwegian Institute for Nature Research, Trondheim. (www.nina.no/archive/nina/PppBasePdf/rapport/2006/133.pdf)

Anker-Nilssen, T., Fayet, A.L. and Aarvak, T. 2023. Top-down control of a marine mesopredator: Increase in native white-tailed eagles accelerates the extinction of an endangered seabird population. Journal of Applied Ecology 60(3): 445-452. (https://doi.org/10.1111/1365-2664.14343)

Alheit, J., and Hagen, E. 2003. Long term climate forcing of European herring and sardine populations. Fisheries Oceanography, 6:2, 130-139.

Arnott, S. A., & Ruxton, G. D. 2002. Sandeel recruitment in the North Sea: demographic, climatic and trophic effects. Marine Ecology Progress Series, 238, 199-210. doi:10.3354/meps238199

Ashmole, N.P. 1963. The regulation of numbers of tropical oceanic birds. Ibis 103b: 458-473. (https://doi.org/10.1111/j.1474-919X.1963.tb06766.x)

Axelsen, B.E., Anker-Nilssen, T., Fossum, P., Kvamme, C. and Nøttestad, L. 2001. Pretty patterns but a simple strategy: predator-prey interactions between juvenile herring and Atlantic puffins observed with multibeam sonar. Canadian Journal of Zoology, 79: 1586-1596. (https://doi.org/10.1139/cjz-79-9-1586)

Bachiller, E., Utne, K. R., Jansen, T., & Huse, G. 2018. Bioenergetics modeling of the annual consumption of zooplankton by pelagic fish feeding in the Northeast Atlantic. PLoS One, 13(1), e0190345.

Barbeaux, S. J., & Hollowed, A. B. 2018. Ontogeny matters: climate variability and effects on fish distribution in the eastern Bering Sea. Fisheries Oceanography, 27(1), 1-15.

Beaugrand, G., Reid, P.C., Ibañez, F., Lindley, J.A., Edwards, M. 2002. Reorganization of North Atlantic Marine Copepod Biodiversity and Climate. Science (New York, N.Y.). 296. 1692-4. 10.1126/science.1071329

Bustnes, J.O., Anker-Nilssen, T., Erikstad, K.E., Lorentsen, S.-H. and Systad, G.H. 2013. Changes in the Norwegian breeding population of European shag correlate with forage fish and climate. Marine Ecology Progress Series, 489: 235-244. (https://doi.org/10.3354/meps10440)

Chafik,L., Hátún, H., Kjellsson, J., Larsen, K. M. H., Rossby, T., and Berx, B. 2020. Discovery of an unrecognized pathway carrying overflow waters toward the Faroe Bank Channel. Nat. Commun. 11:3721. doi: 10.1038/s41467-020-174268

Christensen-Dalsgaard, S., Langset, M. and Anker-Nilssen, T. 2019. Offshore oil rigs – a breeding refuge for Norwegian Black-legged Kittiwakes? Seabird, 32: 20-32.

Croxall, J.P. (ed.) 1997. Seabirds: feeding ecology and role in marine ecosystems. Cambridge University Press.

Cury, P.M., Boyd, I.L., Bonhommeau, S., Anker-Nilssen, T., Crawford, R.J.M, Furness, R.W., Mills, J.A., Murphy, E.J., Österblom, H., Paleczny, M., Piatt, P.F., Roux, J.-P., Shannon, L. and Sydeman, W.J. 2011. Global seabird response to forage fish depletion – one-third for the birds. Science 334: 1703-1706. (https://doi.org/10.1126/science.1212928)

Cushing, D.H. 1990. Plankton production and year-class strength in fish populations: an update of the match–mismatch hypothesis. Advances in Marine Biology, 26: 249-293. (https://doi.org/10.1016/S0065-2881(08)60202-3)

Drinkwater, K., Colbourne, E., Loeng, H., Sundby, S., and Kristiansen, T. 2013. Comparison of the atmospheric forcing and oceanographic responses between the Labrador Sea and the Norwegian and Barents seas, Progress in Oceanography, 114: 11-25. (http://dx.doi.org/10.1016/j.pocean.2013.03.007)

Dupont, N., Bagøien, E., Melle, W. 2017. Inter-annual variability in spring abundance of adult Calanus finmarchicus from the overwintering population in the southeastern Norwegian Sea. Progress in Oceanography, 152: 75-85

Durant, J.M., Anker-Nilssen, T. and Stenseth, N.C. 2003. Trophic interactions under climate fluctuations: the Atlantic puffin as an example. Proceedings of the Royal Society, London, Series B 270: 1461-1466. (https://doi.org/10.1098/rspb.2003.2397)

Durant, J.M., Hjermann, D.Ø., Anker-Nilssen, T., Beaugrand, G., Mysterud, A., Pettorelli, N. and Stenseth, N.C. 2005. Timing and abundance as key mechanisms affecting trophic interactions in variable environments. Ecology Letters 8: 952-958. (https://doi.org/10.1111/j.1461-0248.2005.00798.x)

Durant, J.M., Anker-Nilssen, T. and Stenseth, N.C. 2006. Ocean climate prior to breeding affects the duration of the nestling period in the Atlantic puffin. Biology Letters 2: 628-631. (https://doi.org/10.1098/rsbl.2006.0520)

Eliasen, K., 2013. Sandeel, Ammodytes spp., as a link between climate and higher trophic levels on the Faroe shelf. PhD thesis, Aarhus University, January 2013.

Eyðsteinsson, S.H., Jónasdóttir, S.H., Gislason, A., Guðmundsson, K., Ólavsdóttir, S., Árason, S., Guðjónsdóttir, M. 2021. Biochemical characteristics and demography of the marine calanoid copepod Calanus finmarchicus during spring in Icelandic waters. J. Plankton Res. (2022) 44(1): 145–157. First published online December 22, 2021. (https://doi.org/10.1093/plankt/fbab086)

Fauchald, P., Skov, H., Skjern-Mauritzen, M.S., Hausner, V.H., Johns, D., and Tveraa, T. 2011. Scale-dependent response diversity of seabirds to prey in the North Sea. Ecology, 92(1), 2011, pp. 228–239.

Fayet, A.L., Clucas, G., Anker-Nilssen, T., Syposz, M. and Hansen, E.S. 2021. Local prey shortages drive foraging costs and breeding success in a declining seabird, the Atlantic puffin. Journal of Animal Ecology, 90: 1152-1164. (https://doi.org/10.1111/1365-2656.13442)

Frederiksen, M., Harris, M.P. and Wanless, S. 2005. Inter-population variation in demographic parameters: a neglected subject. Oikos, 111: 209-214. (https://doi.org/10.1111/j.0030-1299.2005.13746.x)

Frederiksen, M., Anker-Nilssen, T., Schekkerman, H., Dierschke, V., Parsons, M., Marra, S. and Mitchell, I. 2024. Model-based assessment of population status using monitoring of breeding productivity and abundance. Ibis 166(3): 940-950. (https://doi.org/10.1111/ibi.13288)

Gaard, E. and Hansen, B. 2000. Variations in the advection of Calanus finmarchicus onto the Faroe Shelf. ICES J Mar Sci 57:1612–1618. (https://doi.org/10.1006/jmsc.2000.0962)

Greenstreet, S. P. R., Armstrong, E., Mosegaard, E., Jensen, H., Gibb, I. M., Fraser, H. M., Scott, B. E., Holland, G. J., and Sharples, J. 2006. Variation in the abundance of sandeels Ammodytes marinus off southeast Scotland: an evaluation of area-closure fisheries management and stock abundance assessment methods. e ICES Journal of Marine Science, 63:1530-1550. doi:10.1016/j.icesjms.2006.05.009

Hammer, S., Madsen, J. J., Jensen, J.-K., Pedersen, K.T., Bloch, D. and Thorup, K. 2014. The Faroese bird migration Atlas. Faroe University Press, Tórshavn.

Hansen, E.S., Sandvik, H., Erikstad, K.E., Yoccoz, N.G., Anker-Nilssen, T., Bader, J., Descamps, S., Hodges, K., Mesquita, M.d.S., Reiertsen, T.K. and Varpe, Ø. 2021. Centennial relationships between ocean temperature and Atlantic puffin production reveal shifting decennial trends. Global Change Biology, 27(16): 3753-3764. (https://doi.org/10.1111/gcb.15665)

Harris, M.P., Anker-Nilssen, T., McCleery, R.H., Erikstad, K.E., Shaw, D.N., and Grosbois, V. 2005. Effect of wintering area and climate on the survival of adult Atlantic puffins Fratercula arctica in the eastern Atlantic. Marine Ecology Progress Series, 297: 283-296.

Hátún, H., Azetsu-Scott, K., Somavilla, R., Rey, F., Johnson, C., Mathis, M., Mikolajewicz, U., Coupel, P., Tremblay, J.-É., Hartman, S., Pacariz, S. V., Salter, I., Ólafsson, J., 2017a. The subpolar gyre regulates silicate concentrations in the North Atlantic. Sci. Rep. 7, 14576. (https://doi.org/10.1038/s41598-017-14837-4)

Hátún, H., Chafik, L., 2018. On the recent ambiguity of the North Atlantic subpolar gyre index. J. Geophys. Res. Ocean. 2014, 1–5. (https://doi.org/10.1029/2018JC014101)

Hátún, H., Larsen, K.M.H., Eliasen, S.K., Mathis, M., 2022a. Major nutrient fronts in the northeastern Atlantic – from the subpolar gyre to adjacent shelves, in: Chemical Oceanography of Frontal Zones. pp. 97–141. (https://link.springer.com/chapter/10.1007/698_2021_794)

Hátún, H., Lohmann, K., Matei, D., Jungclaus, J.H., Pacariz, S. V., Bersch, M., Gislason, A., Ólafsson, J., Reid, P.C., 2016. An inflated subpolar gyre blows life toward the northeastern Atlantic. Prog. Oceanogr. 147, 49–66. (https://doi.org/10.1016/j.pocean.2016.07.009)

Hátún, H., Olsen, B. and Pacariz, S. 2017b. The Dynamics of the North Atlantic Subpolar Gyre introduces predictability to the breeding success of kittiwakes. Frontiers in Marine Science, 4: 123. (https://doi.org/10.3389/fmars.2017.00123)

Hátún, H., Payne, M.R., Beaugrand, G., Reid, P.C., Sandø, A.B., Drange, H., Hansen, B., Jacobsen, J.A., Bloch, D., 2009. Large bio-geographical shifts in the north-eastern Atlantic Ocean: From the subpolar gyre, via plankton, to blue whiting and pilot whales. Prog. Oceanogr. 80, 149–162.

Hátún, H., Sandø, A.B., Drange, H., Hansen, B., and Valdimarsson, H. 2005. Influence of the Atlantic Subpolar Gyre on the thermohaline circulation. Science, 309(5742): 1841-1844. (https://doi.org/10.1126/science.1114777)

Hátún, H., Silva, T.S.G. da, Skagseth, Ø., Grønkjær, P., 2022b. Editorial: Physical drivers of biogeographical shifts in the Northeastern Atlantic – and adjacent shelves. Front. Mar. Sci. 9, 1–4. (https://doi.org/10.3389/fmars.2022.1062204)

Head, E.J.H., Melle, W., Pepin, P., Bagoeien, E., Broms, C., 2013. On the ecology of Calanus finmarchicus in the sub-arctic North Atlantic: a comparison of population dynamics and environmental conditions in areas of the Labrador Sea-Labrador/Newfoundland shelf and Norwegian Sea Atlantic and Coast waters. Progress in Oceanography 114, 46–63. (https://www.sciencedirect.com/science/article/abs/pii/S0079661113000463)

Heath, M.R., Astthorsson, O.S., Dunn, J., Ellertsen, B., Gaard, E., Gislason, A., Gurney, W.S.C., Hind, A.T., Irigoien, X., Melle, W., Niehoff, B., Olsen, K., Skreslet, S., Tande, K.S., 2000. Comparative analysis of Calanus finmarchicus demography at locations around the Northeast Atlantic. ICES Journal of Marine Science 57, 1562–1580. (https://academic.oup.com/icesjms/article/57/6/1562/768543)

Heath, M.R., Lough, R.G. 2007. A synthesis of large-scale patterns in the planktonic prey of larval and juvenile cod (Gadus morhua). Fish Oceanogr 16:169–185. (https://doi.org/10.1111/j.1365- 2419.2006.00423.x)

Henriksen, O., Christensen, A., Jónasdóttir, S.H., MacKenzie, B., Nielsen, K.E., Mosegaard, H. and van Deurs, M. 2018. Oceanographic flow regime and fish recruitment: reversed circulation in the North Sea coincides with unusually strong sandeel recruitment. Marine Ecology Progress Series, 607: 187-205. (https://doi.org/10.3354/meps12786)

Henriksen, O., Rindorf, A., Brooks, M. E., Lindegren, M., and van Deurs, M. 2021. Temperature and body size affect recruitment and survival of sandeel across the North Sea. ICES Journal of Marine Science. https://doi.org/10.1093/icesjms/fsaa165 (Accessed 23 March 2021).

Höglund, H. 1978. Long-term variations in the Swedish herring fishery off Bohuslän and their relation to North Sea herring. Rapp. Proc.-verb. Réun. Cons. Int. Explor. Mer, 172: 175-186.

ICES, 2021. Working Group on the Integrated Assessments of the Norwegian Sea (WGINOR; outputs from 2020 meeting). ICES Scientific Reports, 3: 35. (https://doi.org/10.17895/ices.pub.8021)

ICES. 2023. Northwestern Working Group (NWWG). ICES Scientific Reports. 5:64. (https://doi.org/10.17895/ices.pub.23267153)

ICES, 2024a. ICES Report on Ocean Climate, 2024. ICES, Copenhagen. (https://ocean.ices.dk/core/iroc)

ICES, 2024b. Report of Working Group of International Pelagic Surveys (WGIPS). (https://doi.org/10.17895/ices.pub.25965769)

ICES. 2024c. Arctic Fisheries Working Group (AFWG). ICES Scientific Reports, 6: 61. (https://doi.org/10.17895/ices.pub.25970272)

ICES 2024d. Working Group on the Integrated Assessments of the Norwegian Sea (WGINOR; outputs from 2023 meeting). ICES Scientific Reports. Report. (https://doi.org/10.17895/ices.pub.25526548.v1)

Jacobsen S, Gaard E, Hátún H, Steingrund P, Larsen KMH, Reinert J, Ólafsdóttir SR, Poulsen M, Vang HBM (2019) Environmentally driven ecological fluctuations on the Faroe Shelf revealed by fish juvenile surveys. Front Mar Sci 6:1–12. (https://doi.org/10.3389/fmars.2019.00559)

Johnsen, E., Rieucau, G., Ona, E., and Skaret, G. 2017. Collective structures anchor massive schools of lesser sandeel to the seabed, increasing vulnerability to fishery. Marine Ecology Progress Series, 573: 229–236.

Kjesbu, O. S., Sundby, S., Sandø, A. B., Alix, M., Hjøllo, S. S., Tiedemann, M., ... & Huse, G. 2022. Highly mixed impacts of near‐future climate change on stock productivity proxies in the north East Atlantic. Fish and Fisheries, 23(3), 601-615.

Koul, V., Brune, S., Baehr, J., Schrum, C., 2022. Impact of Decadal Trends in the Surface Climate of the North Atlantic Subpolar Gyre on the Marine Environment of the Barents Sea. Front. Mar. Sci. 8, 1–14. (https://doi.org/10.3389/fmars.2021.778335)

Kristiansen, I., Hátún, H., Petursdóttir, H., Gislason, A., Broms, C., Melle, W., Jacobsen, J.A., Eliasen, S.K., Gaard, E., 2019. Decreased influx of Calanus spp. into the south-western Norwegian Sea since 2003. Deep Sea Res. Part I Oceanogr. Res. Pap. 149, 103048. (https://doi.org/10.1016/j.dsr.2019.05.008)

Kristiansen, I., Gaard, E., Hátún, H., Jónasdóttir, S., Ferreira, A.S.A., 2016. Persistent shift of Calanus spp. in the southwestern Norwegian Sea since 2003, linked to ocean climate. ICES J. Mar. Sci. 73, 1319–1329. (https://doi.org/10.1093/icesjms/fsv222)

Langøy, H., Nøttestad, L., Skaret, G., Broms, C., Fernö, A. 2012. Overlap in distribution and diets of Atlantic mackerel (Scomber scombrus), Norwegian spring-spawning herring (Clupea harengus) and blue whiting (Micromesistius poutassou) in the Norwegian Sea during late summer. Marine Biology Research, 8: 442-460

Layton-Matthews, K., Reiertsen, T.K., Erikstad, K.E., Anker-Nilssen, T., Daunt, F., Wanless, S., Barrett, R.T., Newell, M.A. and Harris, M.P. 2023. Consequences of cross-season demographic correlations for population viability. Ecology and Evolution, 13(7): e10312. (https://doi.org/10.1002/ece3.10312)

Lorentsen, S.-H., Anker-Nilssen, T. and Erikstad, K.E. 2018. Seabirds as guides for fisheries management: European shag Phalacrocorax aristotelis diet as indicator of saithe Pollachius virens recruitment. Marine Ecology Progress Series, 586: 193-201. (https://doi.org/10.3354/meps12440)

MacDonald, A., Heath, M.R., Greenstreet, S.P.R., and Speirs, D.C. 2019. Timing of Sandeel Spawning and Hatching Off the East Coast of Scotland. Front. Mar. Sci. 6:70.doi: 10.3389/fmars.2019.00070

MacDonald, A., Speirs, D. C., Greenstreet, S. P. R., & Heath, M. R. 2018. Exploring the influence of food and temperature on north sea sandeels using a new dynamic energy budget model. Frontiers in Marine Science, doi: (https://doi.org/10.3389/fmars.2018.00339)

Madsen, M. L., Gaard, E., and Hansen, B. W. 2008. Wax-ester mobilization by female Calanus finmarchicus (Gunnerus) during spring ascendance and advection to the Faroe Shelf. ICES J. Mar. Sci. 65, 1112–1121. doi: 10.1093/icesjms/fsn097

Matras, U., Salter, I., Larsen, K.M.H., Gaard, E. and Steingrund, P. 2022. Relationship between plankton dynamics and growth of the long-lived clam Arctica islandica on the Faroe shelf. Frontiers in Marine Science, 9: 822343. (https://doi.org/10.3389/fmars.2022.822343)

Melle, W., Ellertsen, B., and Skjoldal, H.-R. 2004. Zooplankton: the link to higher trophic levels. In The Norwegian Sea Ecosystem, pp. 137–202. Ed. by H. R. Skjoldal, R. Sætre, A. Fernö, O. A. Misund, and I. Røttingen. Tapir Academic Press, Trondheim.

Melle, W., Runge, J., Head, E., Plourde, S., Castellani, C., Licandro, P., et al., 2014. The North Atlantic Ocean as habitat for Calanus finmarchicus: environmental factors and life history traits. Prog. Oceanogr. 129, 244–284. (https://doi.org/10.1016/j.pocean.2014.04.026)

Orvik, K.A., 2003. The impact of the wind stress curl in the North Atlantic on the Atlantic inflow to the Norwegian Sea toward the Arctic. Geophys. Res. Lett. 30, 1884. (https://doi.org/10.1029/2003GL017932)

OSPAR, 2024. The OSPAR Regional Action Plan for Marine Birds in the North-East Atlantic (2024-2030). OSPAR Commission, publication Number 1074/2024 (https://www.ospar.org/documents?v=58061)

Paleczny, M., Hammill, E., Karpouzi, V., and Pauly, D. 2015. Population trend of the world’s monitored seabirds, 1950-2010. PLoS ONE, 10: 1-11. (https://doi.org/10.1371/journal.pone.0129342)

Pétursdóttir, H., Kristinn, G. and Gíslason, Á. 1921. Plöntu- og dýrasvif. Staða umhverfis og vistkerfa í hafinu við Ísland og horfur næstu áratuga. In: G.J. Óskarsson (ed). Staða umhverfis og vistkerfa í hafinu við Ísland og horfur næstu áratuga. Haf- og vatnarannsóknir, HV 2021-14, Hafrannsóknastofnun, Reykjavík, pp 26-30. (https://www.hafogvatn.is/static/files/2021-sidur/hv2021-14.pdf)

Pikitch, E., Boersma, P.D., Boyd, I.L., Conover, D.O., Cury, P., Essington, T., Heppell, S.S., Houde, E.D., Mangel, M., Pauly, D., Plagányi, É., Sainsbury, K., and Steneck, R.S. 2012. Little Fish, Big Impact: Managing a Crucial Link in Ocean Food Webs. Lenfest Ocean Program. Washington, DC. 108 pp.

Prokopchuk, I., and Sentyabov, E. 2006. Diets of herring, mackerel, and blue whiting in the Norwegian Sea in relation to Calanus finmarchicus distribution and temperature conditions. ICES Journal of Marine Science, 63: 117e127.

Régnier, T., Gibb, F.M. and Wright, P.J. 2017. Importance of trophic mismatch in a winter-hatching species: evidence from lesser sandeel. Marine Ecology Progress Series, 567: 185-197. (https://doi.org/10.3354/meps12061)

Régnier, T., Gibb, F.M. and Wright, P.J. 2018. Temperture effects on egg development and larval condtion in the lesser sandeel, Ammodytes marinus. Journal of Sea Research 134: 34-41. (http://dx.doi.org/10.1016/j.seares.2018.01.003)

Saraux, C., Sydeman, W.J., Piatt, J.P., Anker-Nilssen, T., Hentati-Sundberg, J., Bertrand, S., Cury, P.M., Furness, R.W., Mills, J.A., Österblom, H., Passuni, G., Roux, J.-P., Shannon, L.J. and Crawford, R.J.M. 2021. Seabird-induced natural mortality of forage fish varies with fish abundance: evidence from five ecosystems. Fish and Fisheries, 22: 262-279. (https://doi.org/10.1111/faf.12517)

Skagseth, Ø., Broms, C., Gundersen, K., Hátún, H., Kristiansen, I., Larsen, K.M.H., Mork, K.A., Petursdottir, H., Søiland, H., 2022. Arctic and Atlantic Waters in the Norwegian Basin, Between Year Variability and Potential Ecosystem Implications. Front. Mar. Sci. 9, 1–14. (https://doi.org/10.3389/fmars.2022.831739)

Skjoldal, H.-R., Dalpadado, P., and Dommasnes, A. 2004. Food webs and trophic interactions. In: The Norwegian Sea Ecosystem, edited by Skjoldal, H.-R., Sætre, R., Fernö, A., Misund, O.A. and Røttingen, I. p 447-506. Tapir Academic Press.

Steingrund, P. and Gaard, E. 2005. Relationship between phytoplankton production and cod production on the Faroe shelf. ICES Journal of Marine Science, 62: 163-176. (https://doi.org/10.1016/j.icesjms.2004.08.019)

Steingrund, P., Vang, H.B.M., and Larsen, K.M.H, 2024. Faroe Islands cod stocks. In: Biology and Ecology of Atlantic cod, chapter 6, edited by N. Kulatska, D. Howell, P.J. Wright and L.G. Jónsdóttir, 26 pages. CRC Press, Tailor and Francis group. (https://www.taylorfrancis.com/chapters/edit/10.1201/9781003120872-6/faroe-islands-cod-stocks-petur-steingrund-helga-b%C3%A1ra-mohr-vang-karin-margretha-larsen).

Stenevik, E.K., Melle, W., Gaard, E., Gislason, A., Broms, C.T.A., Prokopchuk, I., Ellertsen, B., 2007. Egg production of Calanus finmarchicus– a basin-scale study. Deep-Sea Research Part II 54, 2672–2685.

Stenseth, N.C., Ottersen, G., Hurrell, J.W., and Belgrano, A. (eds.). 2004. Marine Ecosystems and Climate Variation – The North Atlantic. A Comparative Perspective. Oxford University Press.

Sundby, S. 2000. Recruitment of Atlantic cod stocks in relation to temperature and advection of copepod populations. Sarsia, 85: 277-298. (https://doi.org/10.1080/00364827.2000.10414580)

Sætre, R., Toresen, R., Søiland, H. and Fossum, P. 2002. The Norwegian spring-spawning herring – spawning, larval drift and larval retention. Sarsia, 87(2): 167-178. (http://dx.doi.org/10.1080/003648202320205247)

Tesdal, J.E., Ducklow, H.W., Goes, J.I., Yashayaev, I., 2022. Recent nutrient enrichment and high biological productivity in the Labrador Sea is tied to enhanced winter convection. Prog. Oceanogr. 206. https://doi.org/10.1016/j.pocean.2022.102848

Toresen, R., Skjoldal HR., Vikebø, F., Martinussen MB. 2019. Sudden change in long-term ocean climate fluctuations corresponds with ecosystem alterations and reduced recruitment in Norwegian spring-spawning herring (Clupea harengus, Clupeidae). Fish and Fisheries, 4: 686-696

Toresen, R., and Østvedt, O.J. 2000. Variation in abundance of Norwegian spring spawning herring (Clupea harengus, Clupeidae) throughout the 20th century and the influence of climatic fluctuations. Fish and Fisheries, 1(3): 231-256. (https://doi.org/10.1111/j.1467-2979.2000.00022.x)

van der Kooij J., Scott, B., and Mackinson, S. 2008. The effects of environmental factors on daytime sandeel distribution and abundance on the Dogger Bank. Journal of Sea Research (2008) 60(3) 201-209.

van Deurs, M., R. van Hal, R, Tomczak, M.T, Jonasdottir, S. H. and Dolmer P. 2009. Recruitment of Lesser Sandeel Ammodytes Marinus in Relation to Density Dependence and Zooplankton Composition. Marine Ecology-Progress Series 381: 249–58. (https://doi.org/10.3354/meps07960)

van Deurs, M., Hartvig, M., and Steffensen, J.F. 2011. Critical threshold size for overwintering sandeels (Ammodytes marinus). Marine Biology, 158: 2755−2764. (https://doi.org/10.1007/s00227-011-1774-8)

Walnum, P.M. 2024. Investigating the effects of sea temperature and herring quality on Atlantic puffin productivity in the Norwegian Sea. MSc thesis, Norwegian University of Science and Technology, Trondheim. (https://hdl.handle.net/11250/3159903)

Walsh, P.M., Halley, D.J., Harris, M.P., del Nevo, A., Sim, I.M.W. & Tasker, M.L. 1995. Seabird Monitoring Handbook for Britain and Ireland. JNCC/RSPB/ITE/Seabird Group, Peterborough.

Wright, P.J., Jensen, H. and Tuck, I.D. 2000. The influence of sediment type on the distribution of the lesser sandeel, Ammodytes marinus. Journal of Sea Research, 44(3): 243-256. (https://doi.org/10.1016/S1385-1101(00)00050-2)

Wright, P.J., Orpwood, J.E., and Boulcott, P. 2017. Warming delays ovarian development in a capital breeder. Mar Biol (2017) 164:80. DOI 10.1007/s00227-017-3116-y