Summary: An order of pelagic, shrimplike CRUSTACEA. Many consume ZOOPLANKTON and a few are predacious. Many antarctic species, such as Euphuasia superba, constitute the chief food of other animals.
Publications141 found, 100 shown here
- Long-term decline in krill stock and increase in salps within the Southern OceanAngus Atkinson
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 OET, UK aat bas ac uk
Nature 432:100-3. 2004..As krill densities decreased last century, salps appear to have increased in the southern part of their range. These changes have had profound effects within the Southern Ocean food web...
- Metabolic effects of krill oil are essentially similar to those of fish oil but at lower dose of EPA and DHA, in healthy volunteersStine M Ulven
Faculty of Health, Nutrition, and Management, Akershus University College, Lillestrøm, Norway
Lipids 46:37-46. 2011..Krill oil and fish oil thus represent comparable dietary sources of n-3 PUFAs, even if the EPA + DHA dose in the krill oil was 62.8% of that in the fish oil...
- Endocannabinoids may mediate the ability of (n-3) fatty acids to reduce ectopic fat and inflammatory mediators in obese Zucker ratsBarbara Batetta
Dipartimento di Scienze e Tecnologie Biomediche, Universita di Cagliari, Cagliari 09100, Italy
J Nutr 139:1495-501. 2009..The reduction of substrates for inflammatory molecules and endocannabinoids may account for the dampened inflammatory response and the physiological reequilibration of body fat deposition in obese rats...
- Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food webE J Murphy
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK
Philos Trans R Soc Lond B Biol Sci 362:113-48. 2007..This combination of historical perturbation and rapid regional change highlights that the Scotia Sea ecosystem is likely to show significant change over the next two to three decades, which may result in major ecological shifts...
- Krill for human consumption: nutritional value and potential health benefitsJanet C Tou
Division of Animal and Nutritional Sciences, West Virginia University, P O Box 6108, Morgantown, WV 26506, USA
Nutr Rev 65:63-77. 2007The marine crustacean krill (order Euphausiacea) has not been a traditional food in the human diet. Public acceptance of krill for human consumption will depend partly on its nutritive value...
- Evaluation of the effect of Neptune Krill Oil on chronic inflammation and arthritic symptomsLuisa Deutsch
Sciopsis Inc Evidence Based NutraMedicine, 18 Corso Court, Richmond Hill, Ontario L4S 1H4, Canada
J Am Coll Nutr 26:39-48. 2007..a) To evaluate the effect of Neptune Krill Oil (NKO) on C-reactive protein (CRP) on patients with chronic inflammation and b) to evaluate the effectiveness of NKO on arthritic symptoms...
- Incorporation of EPA and DHA into plasma phospholipids in response to different omega-3 fatty acid formulations--a comparative bioavailability study of fish oil vs. krill oilJan Philipp Schuchardt
Institute of Food Science and Human Nutrition, Leibniz University Hannover, Germany
Lipids Health Dis 10:145. 2011..Superior bioavailability has been suggested for phospholipid (PL) bound omega-3 FA in krill oil, but identical doses of different chemical forms have not been compared...
- Recent changes in phytoplankton communities associated with rapid regional climate change along the western Antarctic PeninsulaMartin Montes-Hugo
Coastal Ocean Observation Lab, Institute of Marine and Coastal Sciences, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901, USA
Science 323:1470-3. 2009..Regional changes in phytoplankton coincide with observed changes in krill (Euphausia superba) and penguin populations...
- Evaluation of the effects of Neptune Krill Oil on the clinical course of hyperlipidemiaRuxandra Bunea
Department of Internal Medicine, McGill University, Montreal, Quebec, Canada
Altern Med Rev 9:420-8. 2004..To assess the effects of krill oil on blood lipids, specifically total cholesterol, triglycerides, low-density lipoprotein (LDL), and high-density lipoprotein (HDL)...
- Elucidation of phosphatidylcholine composition in krill oil extracted from Euphausia superbaBjørn Winther
Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, Oslo, Norway
Lipids 46:25-36. 2011..The phosphatidylcholine concentration was estimated to be 34 ± 5 g/100 g oil (n = 5). These results confirm the complexity of the phospholipid composition of krill oil, and the presence of long chained, heavily unsaturated fatty acids...
- Relative changes in krill abundance inferred from Antarctic fur sealTao Huang
Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China
PLoS ONE 6:e27331. 2011..This novel method makes it possible to infer past krill population changes from ancient tissues of krill predators...
- Adult antarctic krill feeding at abyssal depthsAndrew Clarke
Biological Sciences, British Antarctic Survey, Cambridge CB3 0ET, United Kingdom
Curr Biol 18:282-5. 2008..These observations revise significantly our understanding of the depth distribution and ecology of Antarctic krill, a central organism in the Southern Ocean ecosystem...
- The association of Antarctic krill Euphausia superba with the under-ice habitatHauke Flores
Institute for Marine Resources and Ecosystem Studies, Texel, The Netherlands
PLoS ONE 7:e31775. 2012..These findings emphasise the susceptibility of an ecological key species to changing sea ice habitats, suggesting potential ramifications on Antarctic ecosystems induced by climate change...
- Different sources of omega-3 polyunsaturated fatty acids affects apparent digestibility, tissue deposition, and tissue oxidative stability in growing female ratsJanet C Tou
Division of Animal and Nutritional Sciences, West Virginia University, P O Box 6108, Morgantown, WV 26506, USA
Lipids Health Dis 10:179. 2011..Therefore, the objective of this study was to determine the effect of different sources of ω-3 PUFAs on digestibility, tissue deposition, eicosanoid metabolism, and oxidative stability...
- Will krill fare well under Southern Ocean acidification?So Kawaguchi
Australian Antarctic Division, Kingston, Tasmania 7050, Australia
Biol Lett 7:288-91. 2011..These results point out the urgent need for understanding the pCO₂-response relationship for krill developmental and later stages, in order to predict the possible fate of this key species in the Southern Ocean...
- The mitochondrial genomes of Euphausia pacifica and Thysanoessa raschii sequenced using 454 next-generation sequencing, with a phylogenetic analysis of their position in the Malacostracan family treeMattias L Johansson
Cooperative Institute for Marine Resources Studies, Oregon State University, Newport, OR, USA
Mol Biol Rep 39:9009-21. 2012..32 %, 33 variable sites). Phylogenetic analyses to assess the phylogenetic position of the Euphausiacea, using the concatenated nucleic acid sequences of E. pacifica and T...
- Satiation gives krill that sinking feelingGeraint A Tarling
Curr Biol 16:R83-4. 2006
- A circadian clock in Antarctic krill: an endogenous timing system governs metabolic output rhythms in the euphausid species Euphausia superbaMathias Teschke
Laboratory of Chronobiology, Charite Universitatsmedizin Berlin, Berlin, Germany
PLoS ONE 6:e26090. 2011....
- Beneficial effects by intake of Euphausiacea pacifica on high-fat diet-induced obesityYasuyuki Sadzuka
Department of Advanced Pharmaceutics, School of Pharmacy, Iwate Medical University, Japan
Biol Pharm Bull 35:568-72. 2012..pacifica group was significantly reduced by 20% (p<0.001) compared with the HFD group. These results suggested that E. pacifica supplementation in the diet is beneficial for the prevention of HFD-induced obesity...
- Differential gene expression during the moult cycle of Antarctic krill (Euphausia superba)Paul J Seear
British Antarctic Survey, High Cross, Madingley Road, Cambridge CB30ET, UK
BMC Genomics 11:582. 2010..To address this we constructed an Antarctic krill cDNA microarray in order to generate gene expression profiles across the moult cycle and identify possible activation pathways...
- Evaluation of the effects of Neptune Krill Oil on the management of premenstrual syndrome and dysmenorrheaFotini Sampalis
Department of Experimental Surgery, University of Montreal, Montreal, Quebec, Canada
Altern Med Rev 8:171-9. 2003..To evaluate the effectiveness of Neptune Krill Oil (NKO) for the management of premenstrual syndrome and dysmenorrhea...
- Organization of the mitochondrial genome of Antarctic krill Euphausia superba (Crustacea: Malacostraca)Ryuji J Machida
Ocean Research Institute, University of Tokyo, Tokyo 164 8639, Japan
Mar Biotechnol (NY) 6:238-50. 2004..Gene rearrangement was observed for 3 transfer RNA genes (tRNACys, tRNATyr, and tRNATrp) and the 2 leucine tRNA genes...
- Dietary krill oil supplementation reduces hepatic steatosis, glycemia, and hypercholesterolemia in high-fat-fed miceSally Tandy
Heart Research Institute, Sydney, Australia
J Agric Food Chem 57:9339-45. 2009....
- Dietary supplementation of krill oil attenuates inflammation and oxidative stress in experimental ulcerative colitis in ratsTore Grimstad
Department of Medicine, Division of Gastroenterology, Stavanger University Hospital, Stavanger, Norway
Scand J Gastroenterol 47:49-58. 2012..To evaluate the effects of krill oil (KO) on inflammation and redox status in dextran sulfate sodium (DSS)-induced colitis in rats...
- Effects of krill oil on serum lipids of hyperlipidemic rats and human SW480 cellsJia Jin Zhu
Department of Food Science and Nutrition, Zhejiang University, Hangzhou, PR China
Lipids Health Dis 7:30. 2008..Serum lipids of rats fed with high fat diet (HFD) and different doses of KO were measured by automatic analyzer. Effect of KO on viability of cells was determined by methyl thiazolyl tetrazolium (MTT) assay...
- Investigation of natural phosphatidylcholine sources: separation and identification by liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS2) of molecular speciesJulie Le Grandois
Laboratoire de Chimie Analytique et Sciences de l Aliment, IPHC DSA, Universite de Strasbourg, CNRS, 67400 Illkirch, France
J Agric Food Chem 57:6014-20. 2009....
- Consumption of krill protein concentrate prevents early renal injury and nephrocalcinosis in female Sprague-Dawley ratsJoseph C Gigliotti
Animal and Nutritional Sciences, West Virginia University, P O Box 6108, Morgantown, WV 26506, USA
Urol Res 39:59-67. 2011..Based on the study results, KPC prevented early renal injury leading to nephrocalcinosis and potential bone loss...
- Unambiguous detection of astaxanthin and astaxanthin fatty acid esters in krill (Euphausia superba Dana)Marc David Grynbaum
Institute of Organic Chemistry, University of Tuebingen, Tuebingen, Germany
J Sep Sci 28:1685-93. 2005..13-cis) Astaxanthin (70 microg/g), 542 microg/g (all-E) astaxanthin, 36 microg/g unidentified astaxanthin isomer, 62 microg/g (9-cis) astaxanthin, and 7842 microg/g astaxanthin fatty acid esters were found...
- Supplementation of diet with krill oil protects against experimental rheumatoid arthritisMichelle Ierna
MD Biosciences Gmbh Postfach, Gewerbestrasse 9, 8132 Egg b Zürich, Switzerland
BMC Musculoskelet Disord 11:136. 2010..The objective of the present study was to evaluate a standardised preparation of krill oil and fish oil in an animal model for arthritis...
- Is vertical migration in Antarctic krill (Euphausia superba) influenced by an underlying circadian rhythm?Edward Gaten
Department of Biology, University of Leicester, Leicester LE1 7RH, UK
J Genet 87:473-83. 2008..They also suggest that the interplay between food availability, social cues and the light:dark cycle acts as the predominant Zeitgeber for DVM in this species...
- Limb articulation in caridoid crustaceans revisited - new evidence from Euphausiacea (Malacostraca)Christian Haupt
Institut fur Spezielle Zoologie und Evolutionsbiologie, Friedrich Schiller Universitat Jena, Erbertstrasse 1, 07743 Jena, Germany
Arthropod Struct Dev 37:221-33. 2008..In representatives of Decapoda, Anaspidacea and Euphausiacea, the coxa forms proximally a dicondylic articulation with the thorax, permitting promotion-remotion, and ..
- Gelation of protein recovered from whole Antarctic krill (Euphausia superba) by isoelectric solubilization/precipitation as affected by functional additivesYi Chen Chen
School of Nutrition, Chung Shan Medical University, No 110, Section 1, Jianguo North Road, Taichung, Taiwan
J Agric Food Chem 55:1814-22. 2007..Gels made from protein solubilized at acidic pH were brighter and whiter likely due to a higher lipid content...
- A cry from the krillGabriella M Mazzotta
Dipartimento di Biologia, Universita degli Studi di Padova, Padova, Italy
Chronobiol Int 27:425-45. 2010..Our findings represent a first step toward establishing the presence of an endogenous circadian time-keeping mechanism that might allow this organism to synchronize its physiology and behavior to the Antarctic light regimes...
- The mitochondrial genome of Euphausia superba (Prydz Bay) (Crustacea: Malacostraca: Euphausiacea) reveals a novel gene arrangement and potential molecular markersXin Shen
Jiangsu Key Laboratory of Marine Biotechnology College of Marine Science, Huaihai Institute of Technology, 222005, Lianyungang, China
Mol Biol Rep 37:771-84. 2010..However, the taxonomic position of Euphausiacea within Malacostraca is unstable. From comparing the mitochondrial genome between E. superba (PB) and E...
- Systematic sequencing of mRNA from the Antarctic krill (Euphausia superba) and first tissue specific transcriptional signatureCristiano De Pittà
Dipartimento di Biologia, Universita degli Studi di Padova, Via U, Bassi, 58 B, 35121, Padova, Italy
BMC Genomics 9:45. 2008Little is known about the genome sequences of Euphausiacea (krill) although these crustaceans are abundant components of the pelagic ecosystems in all oceans and used for aquaculture and pharmaceutical industry...
- Krill oil supplementation increases plasma concentrations of eicosapentaenoic and docosahexaenoic acids in overweight and obese men and womenKevin C Maki
Provident Clinical Research, Bloomington, IN 47403, USA Provident Clinical Research, Glen Ellyn, IL 60137, USA
Nutr Res 29:609-15. 2009..In conclusion, 4 weeks of krill oil supplementation increased plasma EPA and DHA and was well tolerated, with no indication of adverse effects on safety parameters...
- Oceanography: churn, churn, churnQuirin Schiermeier
Nature 447:522-4. 2007
- Trophic interactions within the Ross Sea continental shelf ecosystemWalker O Smith
Virginia Institute of Marine Sciences, College of William and Mary, Gloucester Point, VA 23062, USA
Philos Trans R Soc Lond B Biol Sci 362:95-111. 2007..We also highlight many of the unknowns within the food web, and discuss the impacts of a changing Ross Sea habitat on the ecosystem...
- Testing olfactory foraging strategies in an Antarctic seabird assemblageGabrielle Nevitt
Section of Neurobiology, Physiology and Behaviour, University of California, Davis, California 95616, USA
J Exp Biol 207:3537-44. 2004..Together, the results support the hypothesis that Antarctic procellariiforms use species-specific foraging strategies that are inter-dependent and more complex than simply tracking prey by scent...
- Modelling Southern Ocean ecosystems: krill, the food-web, and the impacts of harvestingS L Hill
British Antarctic Survey, Natural Environment Research Council, Madingley Road, High Cross, Cambridge CB3 0ET, UK
Biol Rev Camb Philos Soc 81:581-608. 2006..We propose a modelling approach that focuses on harvested species and their monitored consumers and that evaluates model uncertainty by using alternative structures and functional forms in a Monte Carlo framework...
- Characterization of proteinases from Antarctic krill (Euphausia superba)Johan Sjödahl
Department of Analytical Chemistry, Royal Institute of Technology, Teknikringen 36, SE 100 44, Stockholm, Sweden
Protein Expr Purif 26:153-61. 2002..All three fractions of trypsin-like proteinases showed a carboxypeptidase activity in combination with their trypsin activity...
- Persistent organic pollutants at the base of the Antarctic marine food webAmy L Chiuchiolo
Virginia Institute of Marine Science, The College of William and Mary, Gloucester Point, Virginia 23062, USA
Environ Sci Technol 38:3551-7. 2004..The high concentrations of BDEs and HCB in ice algae and associated juvenile krill illustrate the importance of sea ice as a vector for entry of POPs into the Antarctic marine ecosystem...
- Competition among penguins and cetaceans reveals trophic cascades in the western Ross Sea, AntarcticaDavid G Ainley
H T Harvey and Associates, 3150 Almaden Expressway, Suite 145, San Jose, California 95118, USA
Ecology 87:2080-93. 2006..Reduction in the middle-trophic-level prey is expressed in the relaxed grazing pressure on phytoplankton...
- Mass mortality of krill caused by parasitoid ciliatesJaime Gómez-Gutiérrez
Centro Interdisciplinario de Ciencias Marinas, La Paz, B C S, 23096, Mexico
Science 301:339. 2003
- A DNA-based method for identification of krill species and its application to analysing the diet of marine vertebrate predatorsS N Jarman
Australian Antarctic Division, Channel Highway, Kingston, TAS, 7050, Australia
Mol Ecol 11:2679-90. 2002..In each of these cases, krill species consumed by the predators could be identified from their DNA present in faeces or stomach contents...
- Comparative morphology of the hemolymph vascular system in krill (Euphausiacea; Crustacea)Katarina Huckstorf
Allgemeine and Spezielle Zoologie, Institut für Biowissenschaften, Universitat Rostock, Universitatsplatz 2, Rostock, Germany
Arthropod Struct Dev 40:39-53. 2011The phylogenetic position of Euphausiacea within Malacostraca is still under debate. Either they are seen as sister group to a taxon comprising Pancarida and Peracarida or closer related to Decapoda...
- The complete mitochondrial genome of the mantid shrimp Oratosquilla oratoria (Crustacea: Malacostraca: Stomatopoda): Novel non-coding regions features and phylogenetic implications of the StomatopodaYuan Liu
EMBL, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
Comp Biochem Physiol Part D Genomics Proteomics 5:190-8. 2010..based on the current dataset of complete mt genomes strongly support the Stomatopoda is closely related to Euphausiacea. They in turn cluster with Penaeoidea and Caridea clades while other decapods form a separate group, which ..
- Bioinformatic analyses of the publicly accessible crustacean expressed sequence tags (ESTs) reveal numerous novel neuropeptide-encoding precursor proteins, including ones from members of several little studied taxaAndrew E Christie
Neuroscience Program, John W and Jean C Boylan Center for Cellular and Molecular Physiology, Mount Desert Island Biological Laboratory, P O Box 35, Old Bar Harbor Road, Salisbury Cove, ME 04672, USA
Gen Comp Endocrinol 167:164-78. 2010..superba represents the first peptide identified from any member of the basal eucaridean order Euphausiacea. In addition, large collections of insect eclosion hormone- and neuroparsin-like peptides were identified from ..
- Multi-trial biomarker approach in Meganyctiphanes norvegica: a potential early indicator of health status of the Mediterranean "whale sanctuary."M C Fossi
Department of Animal Biology and Marine Ecology, University of Messina, Italy
Mar Environ Res 54:761-7. 2002..w. and Pb 0.496 ppm d.w. Total PAHs ranged from 860.7 to 5,037.9 ng/g d.w., carcinogenic PAHs from 40.3 to 141.7 ng/g d.w., HCB from 3.5 to 11.6 ng/g d.w., DDTs from 45.3 to 163.2 ng/g d.w. and the PCBs from 84.6 to 210.2 ng/g d.w...
- The fine structure of the phoront of Gymnodinioides pacifica, a ciliated protozoan (Ciliophora, Apostomatida) from euphausiids of the Northeastern PacificStephen C Landers
Department of Biological and Environmental Sciences, Troy University, Troy, AL 36082, USA
Eur J Protistol 43:239-49. 2007..Cysts were usually attached at their posterior ends or, less frequently, along their side...
- Mixing it up with krillE Kunze
Science 318:1239; author reply 1239. 2007
- Improved parameterization of Antarctic krill target strength modelsGareth L Lawson
Biology Department, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts 02543, USA
J Acoust Soc Am 119:232-42. 2006....
- Potential climate change effects on the habitat of antarctic krill in the weddell quadrant of the southern oceanSimeon L Hill
British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
PLoS ONE 8:e72246. 2013....
- Decision-making for ecosystem-based management: evaluating options for a krill fishery with an ecosystem dynamics modelG M Watters
Antarctic Ecosystem Research Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 8901 La Jolla Shores Drive, La Jolla, California 92037 1023, USA
Ecol Appl 23:710-25. 2013..However, alternative reference points could alter the perceived risks, so further stakeholder involvement is needed to identify risk metrics that appropriately represent their objectives...
- Notothenioid fish, krill and phytoplankton from Antarctica contain a vitamin E constituent (alpha-tocomonoenol) functionally associated with cold-water adaptationWalter C Dunlap
Australian Institute of Marine Science, PMB No 3, Townsville MC, Queensland 4810, Australia
Comp Biochem Physiol B Biochem Mol Biol 133:299-305. 2002..Our finding of MDT in Antarctic organisms is consistent with its putatively adaptive function to enhance antioxidant protection in coldwater metabolism...
- Behavioural sensitivity of a key Southern Ocean species (Antarctic krill, Euphausia superba) to p,p'-DDE exposureAnita H Poulsen
The University of Queensland, National Research Centre for Environmental Toxicology, Brisbane, Australia
Ecotoxicol Environ Saf 75:163-70. 2012..These findings support the concept of the CBR approach, that effective tissue residues are comparable across species and geographical ranges despite differences in environmental factors...
- Acute appearance of fatty acids in human plasma--a comparative study between polar-lipid rich oil from the microalgae Nannochloropsis oculata and krill oil in healthy young malesMichael L Kagan
Qualitas Health Ltd, Jerusalem, Israel
Lipids Health Dis 12:102. 2013..Krill oil contains EPA and DHA conjugated to phospholipids. We compare the appearance of fatty acids in blood plasma of healthy humans after consuming a high fat meal followed by either algal oil or krill oil...
- Penguin tissue as a proxy for relative krill abundance in East Antarctica during the HoloceneTao Huang
1 Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, Anhui, China 2
Sci Rep 3:2807. 2013..Moreover, the low δ¹⁵N values found in modern Adélie penguins indicate relatively high krill availability, which supports the hypothesis of krill surplus in modern ages due to recent hunt for krill-eating seals and whales by humans...
- Efficacy of food supplement to improve metabolic syndrome parameters in patients affected by moderate to severe psoriasis during anti-TNFα treatmentN Skroza
Department of Dermatology Daniele Innocenzi Sapienza University of Rome, Polo Pontino, Rome, Italy
G Ital Dermatol Venereol 148:661-5. 2013..Psoriasis is a systemic inflammatory immune-mediated skin disease. Recently a relationship with metabolic syndrome in terms of psoriasis severity and response to therapy was observed...
- Enhanced cognitive function and antidepressant-like effects after krill oil supplementation in ratsKarin Wibrand
Department of Biomedicine and KG Jebsen Centre for Research onNeuropsychiatric Disorders, University of Bergen, Jonas Lies vei 91, BergenNO 5009, Norway
Lipids Health Dis 12:6. 2013..The purpose of the study was to evaluate the effects of krill oil (KO) on cognition and depression-like behaviour in rats...
- Pseudocollinia brintoni gen. nov., sp. nov. (Apostomatida: Colliniidae), a parasitoid ciliate infecting the euphausiid Nyctiphanes simplexJ Gomez-Gutierrez
Departamento de Plancton y Ecología Marina, Centro Interdisciplinario de Ciencias Marinas, Av IPN s n, A P 592, La Paz, Baja California Sur 23096, Mexico
Dis Aquat Organ 99:57-78. 2012..P. brintoni may complete its life cycle when the euphausiids feed on these filaments...
- Marine pelagic ecosystems: the west Antarctic PeninsulaHugh W Ducklow
School of Marine Science, The College of William and Mary, Gloucester Point, VA 23062, USA
Philos Trans R Soc Lond B Biol Sci 362:67-94. 2007..The climate/ecological gradients extending along the WAP and the presence of monitoring systems, field stations and long-term research programmes make the region an invaluable observatory of climate change and marine ecosystem response...
- Enhanced learning and memory of normal young rats by repeated oral administration of Krill PhosphatidylserineHyun Jung Park
Acupuncture and Meridian Science Research Center, Kyung Hee University, 1 Hoegi dong, Dongdaemun Gu, Seoul 130 701, Republic of Korea
Nutr Neurosci 16:47-53. 2013..The present study examined the effects of Krill phosphatidylserine (Krill-PS) on the learning and memory function and the neural activity in the normal young rats...
- Dramatic declines in Euphausia pacifica abundance in the East China Sea: response to recent regional climate changeZhao li Xu
East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Science, Jun Gong Road, Shanghai 200090, China
Zoolog Sci 31:135-42. 2014..However, E. pacifica did not come back to the previous habitat when temperature became relative cold. Hence additional factors affecting the E. pacifica distribution and abundance need to be investigated in the future study. ..
- Antarctic krill 454 pyrosequencing reveals chaperone and stress transcriptomeMelody S Clark
British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom
PLoS ONE 6:e15919. 2011..Hence, understanding how this organism functions is a priority area and will provide fundamental data for life history studies, energy budget calculations and food web models...
- High temperature liquid chromatography-inductively coupled plasma mass spectrometry for the determination of arsenosugars in biological samplesAmanda Terol
Department of Analytical Chemistry, Nutrition and Food Science, University of Alicante, P O Box 99, 03080 Alicante, Spain
J Chromatogr A 1262:70-6. 2012..On the other hand, lower concentrations of these compounds were found in the crustacean, accounting for about 15% of the extracted arsenic...
- Crystalline structure and thermal property characterization of chitin from Antarctic krill (Euphausia superba)Yanchao Wang
College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
Carbohydr Polym 92:90-7. 2013..07 nm and 5.16 nm at (020) and (110) planes, respectively. The activation energy of the polysaccharide chain decomposition was 123.35 kJ/mol and the glass transition (T(g)) of Antarctic krill chitin was 164.96 °C...
- Reproduction in Northern krill (Meganyctiphanes norvegica Sars)Janine Cuzin-Roudy
Observatoire Oceanologique, Université Pierre et Marie Curie Paris CNRS, Villefranche sur Mer, France
Adv Mar Biol 57:199-230. 2010..New molecular tools are now available to tackle such questions...
- The effects of preservation methods, dyes and acidification on the isotopic values (δ15N and δ13C) of two zooplankton species from the KwaZulu-Natal Bight, South AfricaAnder M de Lecea
School of Biological and Conservational Sciences, Biological Sciences Building, Westville Campus, University of KwaZulu Natal, Durban 4001, South Africa
Rapid Commun Mass Spectrom 25:1853-61. 2011..Although the effects on δ(15)N varied, a relative enrichment in (13)C of samples occurred with time. This can have important consequences for the understanding of the organic flow within a food web and for trophic studies. ...
- Purification and characterization of cellulase from North Pacific krill (Euphausia pacifica). Analysis of cleavage specificity of the enzymeAkihiko Tsuji
Department of Biological Science and Technology, The University of Tokushima Graduate School, 2 1 Minamijosanjima, Tokushima 770 8506, Japan
Comp Biochem Physiol B Biochem Mol Biol 163:324-33. 2012..Although amino acid sequence homology of the enzyme with termite cellulases and the presence of oligosaccharides in the enzyme suggested that the enzyme is produced by krill itself, further analysis is necessary...
- The complete mitochondrial genome sequence of Euphausia pacifica (Malacostraca: Euphausiacea) reveals a novel gene order and unusual tandem repeatsXin Shen
Jiangsu Key Laboratory of Marine Biotechnology, College of Marine Science, Huaihai Institute of Technology, Lianyungang 222005, China
Genome 54:911-22. 2011..Euphausia pacifica (Malacostraca: Euphausiacea) is one of the most important and dominant crustaceans in the North Pacific Ocean...
- Linking animal-borne video to accelerometers reveals prey capture variabilityYuuki Y Watanabe
National Institute of Polar Research, Tachikawa, Tokyo 190 8518, Japan
Proc Natl Acad Sci U S A 110:2199-204. 2013..e., video observations, linking video to behavioral signals, and extension of signal analysis) are unique approaches to understanding the spatial and temporal variability of ecologically important events such as foraging...
- Life cycle environmental impacts of three products derived from wild-caught Antarctic krill (Euphausia superba)Robert W R Parker
School for Resource and Environmental Studies, Dalhousie University, 6100 University Avenue, Halifax, Nova Scotia, Canada, B3H 4R2
Environ Sci Technol 46:4958-65. 2012....
- A krill oil supplemented diet suppresses hepatic steatosis in high-fat fed ratsAlessandra Ferramosca
Department of Biological and Environmental Sciences and Technologies, University of Salento, Lecce, Italy
PLoS ONE 7:e38797. 2012..Lastly, the KO supplementation prevented an increase in body weight, as well as oxidative damage of lipids and proteins, which is often found in high-fat fed animals...
- Testing paradigms of ecosystem change under climate warming in AntarcticaJessica Melbourne-Thomas
Antarctic Climate and Ecosystems Cooperative Research Centre, University of Tasmania, Hobart, Tasmania, Australia
PLoS ONE 8:e55093. 2013..We suggest that our network approach to evaluating a recent and widely cited paradigm of change for the Antarctic region could be broadly applied in hypothesis testing for other regions and research fields...
- Increased feeding and nutrient excretion of adult Antarctic krill, Euphausia superba, exposed to enhanced carbon dioxide (CO₂)Grace K Saba
Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey, United States of America
PLoS ONE 7:e52224. 2012..This represents an additional stress that may hamper growth and reproduction, which would negatively impact an already declining krill population along the WAP...
- 28S rDNA evolution in the Eumalacostraca and the phylogenetic position of krillS N Jarman
Institute of Antarctic and Southern Ocean Studies, University of Tasmania, Hobart, Tasmania, 7001, Australia
Mol Phylogenet Evol 17:26-36. 2000..The phylogenetic position of one order within this class, the Euphausiacea ("krill," subclass Eumalacostraca) was investigated using 28S rDNA sequences from representatives of several ..
- Physiological constraints and the influence of diet on fatty acids in the yolk of gentoo penguins, Pygoscelis papuaMichael J Polito
Department of Biology and Marine Biology, University of North Carolina Wilmington, 601 South College Road, Wilmington, NC, 28403, USA
J Comp Physiol B 182:703-13. 2012....
- Nyctiphanes couchii as intermediate host for the acanthocephalan Bolbosoma balaenae in temperate waters of the NE AtlanticM Gregori
Instituto de Investigaciones Marinas CSIC, Eduardo Cabello 6, 36208 Vigo, Spain
Dis Aquat Organ 99:37-47. 2012..balenae, and we suggest that the whales Balaenoptera physalus (Linnaeus, 1758) and B. acutorostrata (Lacepède, 1804) are its definitive hosts. This life cycle is probably completed with or without paratenic hosts...
- Characterization of lipids and antioxidant capacity of novel nutraceutical egg products developed with omega-3-rich oilsNissan M Kassis
West Virginia University, Division of Animal and Nutritional Sciences, PO Box 6108, Morgantown, WV 26506 6108, USA
J Sci Food Agric 92:66-73. 2012..Experimental egg products matched composition of hen egg (whole egg). The experimental egg products, mixed whole egg, and a liquid egg product (Egg Beaters) were microwave-cooked and compared...
- Discrimination of stable isotopes in fin whale tissues and application to diet assessment in cetaceansA Borrell
Biodiversity Research Institute IrBio and Department of Animal Biology, Faculty of Biology, University of Barcelona, Barcelona, Spain
Rapid Commun Mass Spectrom 26:1596-602. 2012..Previous research suggested that the diet of fin whales from the waters off northwestern Spain is overwhelmingly based on krill, thus permitting reliable calculation of discrimination values in this wild population...
- Aqueous uptake and sublethal toxicity of p,p'-DDE in non-feeding larval stages of Antarctic krill (Euphausia superba)Anita H Poulsen
The University of Queensland, National Research Centre for Environmental Toxicology EnTox, 39 Kessels Rd, Brisbane, QLD 4108, Australia
Environ Pollut 160:185-91. 2012..The finding of comparable body residue-based toxicity of p,p'-DDE between polar and temperate species supports the tissue residue approach for environmental risk assessment of polar ecosystems...
- The hydrodynamic disturbances of two species of krill: implications for aggregation structureKimberly B Catton
School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332 0355, USA
J Exp Biol 214:1845-56. 2011..The orientation of the position of the nearest neighbor is not coincident with the orientation of the flow disturbance, however, which indicates that E. superba are avoiding the region of strongest flow...
- Ocean science. Biomixing of the oceans?André W Visser
Technical University of Denmark, Danish Institute for Fisheries Research, Department of Marine Ecology and Aquaculture, Kavalergaarden 6, DK 2920 Charlottenlund, Denmark
Science 316:838-9. 2007
- Gone with the currents: lack of genetic differentiation at the circum-continental scale in the Antarctic krill Euphausia superbaErica Bortolotto
Department of Biology, University of Padova, Via U, Bassi 58B 35121 Padova, Italy
BMC Genet 12:32. 2011....
- Variability in krill biomass links harvesting and climate warming to penguin population changes in AntarcticaWayne Z Trivelpiece
Antarctic Ecosystem Research Division, Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA 92037, USA
Proc Natl Acad Sci U S A 108:7625-8. 2011....
- Ocean science. Creatures great and small are stirring the oceanRichard A Kerr
Science 313:1717. 2006
- A cold-adapted esterase from psychrotrophic Pseudoalteromas sp. strain 643AHubert Cieśliński
Departament of Microbiology, Gdansk University of Technology, ul Narutowicza 11 12, 80 952, Gdansk, Poland
Arch Microbiol 188:27-36. 2007..Addition of selected divalent ions e.g. Mg(2+), Co(2+) and Cu(2+) led to the reduction of enzymatic activity and the enzyme was slightly activated ( approximately 30%) by Ca(2+) ions...
- Computational determination of refractive index distribution in the crystalline cones of the compound eye of Antarctic krill (Euphausia superba)Jozsef Gal
School of Engineering and Science, International University Bremen IUB, Campus Ring 1, D 28759 Bremen, Germany
J Theor Biol 244:318-25. 2007....
- DNA as a dietary biomarker in Antarctic krill, Euphausia superbaA J Passmore
Institute of Antarctic and Southern Ocean Studies, University of Tasmania, Private Bag 77, Hobart, Tasmania, 7001, Australia
Mar Biotechnol (NY) 8:686-96. 2006..Overall the results suggest that the application of DNA-based diet analysis to krill warrants further investigation, particularly for prey that are difficult to study using other methods...
- Determination of the absolute configuration of selenomethionine from antarctic krill by RP-HPLC/ICP-MS using chiral derivatization agentsJan Bergmann
GKSS Research Center Geesthacht, Institute for Coastal Research, Max Planck Strasse, 21502 Geesthacht, Germany
Anal Bioanal Chem 378:1624-9. 2004..Detection limits of about 4 microg L(-1) were obtained. The method was applied to the determination of the configuration of selenomethionine extracted from antarctic krill, which turned out to possess the L-configuration...
- Super-aggregations of krill and humpback whales in Wilhelmina Bay, Antarctic PeninsulaDouglas P Nowacek
Nicholas School of the Environment and Pratt School of Engineering, Duke University Marine Laboratory, Beaufort, North Carolina, United States of America
PLoS ONE 6:e19173. 2011..Consideration of these features and the effects of climate change on krill dynamics are critical to managing both krill harvests and the recovery of baleen whales in the Southern Ocean...
- Studies on metabolic properties in the Northern Krill, Meganyctiphanes norvegica (Crustacea, euphausiacea): influence of nutrition and season on pyruvate kinaseM Salomon
Alfred Wegener Institut fur Polar und Meeresforschung, c o Biologische Anstalt Helgoland, Meeresstation, Postfach 180, D 27483, Helgoland, Germany
Comp Biochem Physiol A Mol Integr Physiol 127:505-14. 2000..norvegica are modified in relation to food supply. Accordingly, alternative mechanisms are involved in the depression of the metabolic rate in terms of oxygen consumption...
- Fatty acids of astaxanthin esters in krill determined by mild mass spectrometryShinichi Takaichi
Biological Laboratory, Nippon Medical School, Kosugi cho, Nakahara, Kawasaki 211 0063, Japan
Comp Biochem Physiol B Biochem Mol Biol 136:317-22. 2003..Therefore, determination of fatty acids in carotenoid esters by a combination of HPLC elution profile and mild mass spectrometry is found to be a useful tool...
- MtDNA sequencing from zooplankton after long-term preservation in buffered formalinA Bucklin
Ocean Process Analysis Laboratory, 142 Morse Hall, University of New Hampshire, Durham NH 03824, USA
Mol Phylogenet Evol 30:879-82. 2004..We report here the determination of DNA sequences for Meganyctiphanes norvegica (Crustacea, Euphausiacea) preserved and stored in buffered formalin for up to 25 years...
- The life cycle of Anisakis simplex in the Norwegian Deep (northern North Sea)Sven Klimpel
Institute of Zoomorphology, Cell Biology and Parasitology, Heinrich Heine University, Universitatsstrasse 1, 40225, Dusseldorf, Germany
Parasitol Res 94:1-9. 2004Copepoda (Calanus finmarchicus n = 1,722, Paraeuchaeta norvegica n = 1,955), Hyperiidae (n = 3,019), Euphausiacea (Meganyctiphanes norvegica n = 4,780), and the fishes Maurolicus muelleri (n = 500) and Pollachius virens (n = 33) were ..
- Distribution of elements binding to molecules with different molecular weights in aqueous extract of Antarctic krill by size-exclusion chromatography coupled with inductively coupled plasma mass spectrometryBin Li
Institute for Coastal Research, GKSS Research Center, Max Planck Strasse, D 21502 Geesthacht, Germany
J Chromatogr B Analyt Technol Biomed Life Sci 814:83-91. 2005..The results showed that the dominant arsenic species in this fraction is As(III) (63% of extractable arsenic), while As(V) (13%) and two unknown arsenic species (19% and 5%, respectively) are present in lower amounts...
- Isolation of selenium organic species from antarctic krill after enzymatic hydrolysisMariana Siwek
Institute of Biotechnology II, Technical University Hamburg Harburg, Denickestrasse 15, 21071, Hamburg, Germany
Anal Bioanal Chem 381:737-41. 2005....
- New locality records for third-stage larvae of Anisakis simplex (sensu lato) (Nematoda: Ascaridoidea) in euphausiids Euphausia pacifica and Thysanoessa raschii from Prince William Sound, AlaskaJohn W Smith
Department of Biology, Wilfrid Laurier University, Waterloo, Ontario N2L 3C5, Canada
Parasitol Res 97:539-42. 2005..or a possible rhizocephalan. Controversy regarding the number of moults that occur in the egg of marine ascaridoids is discussed briefly...
- Persistent organohalogen contaminant burdens in Antarctic krill (Euphausia superba) from the eastern Antarctic sector: a baseline studyS M Bengtson Nash
The University of Queensland, The National Research Centre for Environmental Toxicology, Coopers Plains, Queensland 4180, Australia
Sci Total Environ 407:304-14. 2008....
- Occurrence of organochlorine pesticides (OCPs) and their enantiomeric signatures, and concentrations of polybrominated diphenyl ethers (PBDEs) in the Adélie penguin food web, AntarcticaSimonetta Corsolini
Department of Environmental Science G Sarfatti, University of Siena, Via P A Mattioli, 4, I 53100 Siena, Italy
Environ Pollut 140:371-82. 2006..The detection of BDE28, BDE47, BDE99 and BDE100 in Antarctic organisms confirmed their global transport and distribution; the detection of lower brominated congeners suggested a potential long-range transport...