Antarktis-bibliografi er en database over den norske Antarktis-litteraturen.

Hensikten med bibliografien er å synliggjøre norsk antarktisforskning og annen virksomhet/historie i det ekstreme sør. Bibliografien er ikke komplett, spesielt ikke for nyere forskning, men den blir oppdatert.

Norsk er her definert som minst én norsk forfatter, publikasjonssted Norge eller publikasjon som har utspring i norsk forskningsprosjekt.

Antarktis er her definert som alt sør for 60 grader. I tillegg har vi tatt med Bouvetøya.

Det er ingen avgrensing på språk (men det meste av innholdet er på norsk eller engelsk). Eldre norske antarktispublikasjoner (den eldste er fra 1894) er dominert av kvalfangst og ekspedisjoner. I nyere tid er det den internasjonale polarforskninga som dominerer. Bibliografien er tverrfaglig; den dekker både naturvitenskapene, politikk, historie osv. Skjønnlitteratur er også inkludert, men ikke avisartikler eller upublisert materiale.

Til høyre finner du en «HELP-knapp» for informasjon om søkemulighetene i databasen. Mange referanser har lett synlige lenker til fulltekstversjon av det aktuelle dokumentet. For de fleste tidsskriftartiklene er det også lagt inn sammendrag.

Bibliografien er produsert ved Norsk Polarinstitutts bibliotek.

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krill

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Results 28 resources

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Descamps, S., Tarroux, A., Cherel, Y., Delord, K., Godø, O. R., Akiko, K., Krafft, B. A., Lorentsen, S.-H., Ropert-Coudert, Y., Skaret, G., & Varpe, Ø. (2016). At-Sea Distribution and Prey Selection of Antarctic Petrels and Commercial Krill Fisheries. PloS One, 11, 18 s. https://doi.org/10.1371/journal.pone.0156968

Kommersielle fiskerier kan påvirke marine økosystemer og bestander av topp-predatorer som sjøfugl. I Sørishavet foregår et ekstensivt fiske etter Antarktisk krill (Euphausia superba), og dette er antatt å øke. En sammenligning av fordeling og uttak hos fiskeriene og tilsvarende hos topp-predatorene er nødvendig for å forutsi fiskerirelaterte påvirkninger på krillavhengige predatorer. I dette studiet kartla vi næringssøksområdene hos Antarktispetrell (Thalassoica antarctica) som hekker i verdens største koloni (Svarthammaren, Dronning Maud land) over en treårsperiode. Vi fant at det romlige overlappet mellom krillfiskerier og næringssøkende Antarktispetrell generelt var lite. Konkurranse mellom Antarktispetrell og krill-fiskerier er for tiden neglisjerbart, men kan øke hvis fiskeriet etter krill øker.
Niemandt, C., Kovacs, K. M., Lydersen, C., Dyer, B. M., Isaksen, K., Hofmeyr, G. J. G., Mehlum, F., & de Bruyn, P. J. N. (2016). Chinstrap and macaroni penguin diet and demography at Nyrøysa, Bouvetøya. Antarctic Science, 28(2), 91–100. https://doi.org/10.1017/S0954102015000504
Krafft, B. A., Skaret, G., Knutsen, T., Melle, W., Klevjer, T., & Søiland, H. (2012). Antarctic krill swarm characteristics in the Southeast Atlantic sector of the Southern Ocean. Marine Ecology. Progress Series, 465, 69–83. https://doi.org/10.3354/meps09876

Knowledge about swarm dynamics and underlying causes is essential to understand the ecology and distribution of Antarctic krill . We collected acoustic data and key environmental data continuously across extensive gradients in the little-studied Southeast Atlantic sector of the Southern Ocean. A total of 4791 krill swarms with swarm descriptors including swarm height and length, packing density, swimming depth and inter-swarm distance were extracted. Through multivariate statistics, swarms were categorized into 4 groups. Group 2 swarms were largest (median length 108 m and thickness 18 m), whereas swarms in both Groups 1 and 4 were on average small, but differed markedly in depth distribution (median: 52 m for Group 1 vs. 133 m for Group 4). There was a strong spatial autocorrelation in the occurrence of swarms, and an autologistic regression model found no prediction of swarm occurrence from environmental variables for any of the Groups 1, 2 or 4. Probability of occurrence of Group 3 swarms, however, increased with increasing depth and temperature. Group 3 was the most distinctive swarm group with an order of magnitude higher packing density (median: 226 ind. m ) than swarms from any of the other groups and about twice the distance to nearest neighbor swarm (median: 493 m). The majority of the krill were present in Group 3 swarms, and the absence of association with hydrographic or topographic concentrating mechanisms strongly suggests that these swarms aggregate through their own locomotion, possibly associated with migration.
Iversen, S. A., & Coulthard, A. (2011). Ecosystem study and krill survey aboard G.O. Sars in Southern Ocean. In O. Orheim & K. Ulstein (Eds.), International Polar Year 2007-2008 : the Norwegian contribution (pp. 97–99). Research Council of Norway.
Iversen, S. A. (Red. ), Myklevoll, S. (Red. ), Mæstad, K. (Red. ), & Nøttestad, L. (Red. ). (2010). Cruising for krill in the Southern Ocean with G.O. Sars. Institute of Marine Research.
Biuw, M., Krafft, B. A., Hofmeyr, G. J. G., Lydersen, C., & Kovacs, K. M. (2009). Time budgets and at-sea behaviour of lactating female Antarctic fur seals Arctocephalus gazella at Bouvetøya. Marine Ecology. Progress Series, 385, 271–284.

We present the first data on attendance patterns, at-sea movements and diving behaviour of Antarctic fur seals breeding at Bouvetøya (Bouvet Island), Southern Ocean. While other colonies have been extensively studied, this remote and second largest global population remains relatively unknown. Time depth recorders and satellite relay data loggers were deployed on breeding females during the 2000–2001 and 2001–2002 summers. Attendance and foraging patterns were similar to those observed at colonies in the Scotia Sea region where Antarctic krill is the predominant prey. Early to mid-lactation trips ranged within ~100 km of the island, usually towards the west. The dominant direction shifted later in the season and the range also increased markedly to a peak between early February and early March. Solar elevation influenced arrivals and departures from the island, with most departures occurring around sunset. Diurnal variations in diving behaviour were consistent with the vertical migration of krill. Diving frequency was higher at night and diving effort peaked around morning twilight. Afternoon deep diving was common, suggesting that females might target dense daytime krill aggregations between the photic zone and the thermocline. Trip durations increased throughout early to mid-lactation, peaking in late January to early March, before again decreasing towards the end of lactation. Our results illustrate the substantial variability, both between individuals and within individuals over time, that is likely to reflect variations in prey distribution and in the growth requirements of pups. Such variations need to be taken into account when estimating habitat use and resource utilisation in marine top predators.
Stephansen, S. M. (2008). Rødt gull i Sørishavet. Polaråret: et magasin om det internasjonale polaråret 2007-2008, 2, 16–19.

En rekelignende skapning i Sørishavet er Kjell Inge Røkkes nye yndling. Den kan nemlig brukes i alt fra slankemidler til fiskefôr. Men vet vi nok om krill til å slippe trålerne løs? Forskningsskipet G.O. Sars har vært på tokt for å finne u mer.
Nygård, T., Lie, E., Røv, N., & Steinnes, E. (2001). Metal dynamics in an Antarctic food chain. Marine Pollution Bulletin, 42(7), 598–602. https://doi.org/10.1016/s0025-326x(00)00206-x

The concentrations of copper, zinc, cadmium, selenium and mercury were determined in eggs, muscle, liver, kidney and stomach content of nestlings and adults of the Antarctic petrel, Thalassoica antarctica, and its predator, the south polar skua, Chataracta maccormicki, from Svarthamaren, Dronning Maud Land, Antarctica. The dominant food of the petrels is krill, Euphausia superba. The results show relatively high levels of cadmium in krill, which is assumed to be the main reason for the high levels of cadmium in petrels and skuas. Cadmium is almost absent in eggs, but accumulates very rapidly with age in nestlings. The copper concentrations in livers of nestling petrels reach very high levels during growth. This may be seen in connection with physiological development processes. Mercury seems to be accumulated with age and between trophic levels. Among the nestlings, the mercury levels decrease with increasing age, which may be accomplished by the excretion of mercury through the growth of feathers and as a dilution effect during growth. Selenium and mercury are inversely correlated in nestlings. The levels of zinc were similar for different nestling stages and between nestlings and adults in skuas and petrels.
Lie, E., Nygård, T., Røv, N., & Steinnes, E. (1999). Akkumulering av tungmetaller i en antarktisk næringskjede. In T. Nygård & B. Jonsson (Eds.), NINAs strategiske instituttprogrammer 1991-95. Forurensningsøkologi. Sluttrapport (Vol. 10, pp. 66–70). Norsk institutt for naturforskning.
Lie, E. (1995). Akkumulering av tungmetaller i en antarktisk næringskjede : hovedoppgave i naturmiljøkjemi. Universitetet i Trondheim.
Mårtensson, P.-E., Nordøy, E. S., & Blix, A. S. (1994). Digestibility of krill (Euphausia superba and Thysanoessa sp.) in minke whales (Balaenoptera acutorostrata) and crabeater seals (Lobodon carcinophagus). British Journal of Nutrition, 72(5), 713–716. https://doi.org/10.1079/BJN19940073
Mårtensson, P.-E., Nordøy, E. S., & Blix, A. S. (1993). Digestibility of krill in crabeater seals and minke whales.
Haftorn, S., Bech, C., & Mehlum, F. (1991). Aspects of the breeding biology of the Antarctic Petrel Thalassoica antarctica and the krill requirement of the chicks, at Svarthamaren in Mühlig-Hofmanfjella, Dronning Maud Land. Fauna Norvegica. Serie C. Cinclus, Norwegian Journal of Ornithology, 14(1), 7–22.
Hewes, C. D., Holm-Hansen, O., & Sakshaug, E. (1985). Alternate Carbon Pathways at Lower Trophic Levels in the Antarctic Food Web. In W. R. Siegfried, P. R. Condy, & R. M. Laws (Eds.), Antarctic Nutrient Cycles and Food Webs (pp. 277–283). Springer.
Osnes, K. K. (1985). Peptide hydrolases of Antarctic krill, Euphausia superba. Norwegian Institute of Technology, University of Trondheim.
Ellingsen, T. E., Mohr, V., & Sæther, O. (1983). Antarktisk krill : biokjemi og teknologi : 3 : Lipidfordeling (Vol. 3). Institutt for teknisk biokjemi/Norges tekniske høgskole.
Ellingsen, T. E., & Mohr, V. (1982). Lipids in Antarctic krill : composition and post mortem changes (Vol. 57).
Ellingsen, T. E., Mohr, V., & Sæther, O. (1981). Antarktisk krill : biokjemi og teknologi : Rapport 2 : Lipider (Vol. 2). Institutt for teknisk biokjemi/Norges tekniske høgskole.
Ellingsen, T. E., Mohr, V., & Sæther, O. (1980). Antarktisk krill : biokjemi og teknologi : Rapport 1 : Sensoriske egenskaper (Vol. 1). Institutt for teknisk biokjemi/Norges tekniske høgskole.
Ellingsen, T. E., & Mohr, V. (1979). A new process for the utilization of Antarctic krill. Process Biochemistry, 14(10), 14–17.

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