Blar i Department of Biological Sciences på tittel

Viser treff 1338-1357 av 2216

    • A Microbial Nitrogen Engine Modulated by Bacteriosyncytia in Hexactinellid Sponges: Ecological Implications for Deep-Sea Communities 

      Maldonado, Manuel; López-Acosta, María; Busch, Kathrin; Slaby, Beate M.; Bayer, Kristina; Beazley, Lindsay; Hentschel, Ute; Kenchington, Ellen; Rapp, Hans Tore (Journal article; Peer reviewed, 2021-03-17)
      Hexactinellid sponges are common in the deep sea, but their functional integration into those ecosystems remains poorly understood. The phylogenetically related species Schaudinnia rosea and Vazella pourtalesii were herein ...

    • Microbial winter and spring bloom dynamics in a high Arctic fjord 

      Nordgård, Ida Kessel (Master thesis, 2014-06-02)
      Knowledge of the seasonal dynamics within the Arctic marine microbial network is scarce, particularly during the polar night period. The abundances of different microbial groups in Adventfjorden, Svalbard were investigated ...

    • Microbiological aspects of fish handling and processing in the Norwegian pelagic sector 

      Svanevik, Cecilie Smith (Doctoral thesis, 2015-03-17)
      Most global marine fish resources seem to have reached their limit of sustainable exploitation, whereas the demand for high quality fish products is still increasing. The fish sector needs to comply with the growing market ...

    • Microbiological assessment along the fish production chain of the Norwegian pelagic fisheries sector - Results from a spot sampling programme 

      Svanevik, Cecilie Smith; Roiha, Irja Sunde; Levsen, Arne; Lunestad, Bjørn Tore (Peer reviewed; Journal article, 2015-10)
      Microbes play an important role in the degradation of fish products, thus better knowledge of the microbiological conditions throughout the fish production chain may help to optimise product quality and resource utilisation. ...

    • The Microbiome and Occurrence of Methanotrophy in Carnivorous Sponges 

      Hestetun, Jon Thomassen; Dahle, Håkon; Jørgensen, Steffen Leth; Olsen, Bernt Rydland; Rapp, Hans Tore (Peer reviewed; Journal article, 2016-11-09)
      As shown by recent studies, filter-feeding sponges are known to host a wide variety of microorganisms. However, the microbial community of the non-filtering carnivorous sponges (Porifera, Cladorhizidae) has been the subject ...

    • Microbiome dataset from a marine recirculating aquaculture system (RAS) for salmon post-smolt production in Norway 

      Drønen, Karine; Roalkvam, I.; Dahle, Hakon; Olsen, Anne Berit; Nilsen, Hanne Katrine; Wergeland, Heidrun Inger (Journal article; Peer reviewed, 2022)
      A marine aquaculture recycling system (RAS) for the production of post-smolt was monitored for microbial community structures during the first year of operation. Sample material was obtained monthly from the biofilter ...

    • Microbiomes of Hadal Fishes across Trench Habitats Contain Similar Taxa and Known Piezophiles 

      Blanton, Jessica M.; Peoples, Logan M.; Gerringer, Mackenzie E.; Iacuaniello, Caroline M.; Gallo, Natalya; Linley, Thomas D.; Jamieson, Alan J.; Drazen, Jeffrey C.; Bartlett, Douglas H.; Allen, Eric E. (Journal article; Peer reviewed, 2022)
      Hadal snailfishes are the deepest-living fishes in the ocean, inhabiting trenches from depths of ∼6,000 to 8,000 m. While the microbial communities in trench environments have begun to be characterized, the microbes ...

    • Micromonas versus virus: New experimental insights challenge viral impact 

      Ruiz Martinez, Eliana; Baudoux, Anne-Claire; Simon, Nathalie; Sandaa, Ruth-Anne; Thingstad, Tron Frede; Pagarete, António (Peer reviewed; Journal article, 2017-05)
      Viruses have recurrently been hypothesized as instrumental in driving microbial population diversity. Nonetheless, viral mediated co-existence of r/kstrategists, predicted in the Killing-the-Winner (KtW) hypothesis, remains ...

    • Micronekton biomass distribution, improved estimates across four north Atlantic basins 

      Klevjer, Thor A.; Melle, Webjørn Raunsgård; Knutsen, Tor; Strand, Espen; Korneliussen, Rolf; Dupont, Nicolas; Salvanes, Anne Gro Vea; Wiebe, Peter H. (Peer reviewed; Journal article, 2019)
      Distribution of micronekton was investigated during early summer of 2013, using data from a cruise covering the central parts of four north Atlantic basins, the Norwegian Sea (NS), Iceland Sea (ICS), Irminger Sea (IRS), ...

    • Microplastic variability in subsurface water from the Arctic to Antarctica 

      Pakhomova, Svetlana; Berezina, Anfisa; Lusher, Amy; Zhdanov, Igor; Silvestrova, Ksenia; Zavialov, Peter; van Bavel, Bert; Yakushev, Evgeniy (Journal article; Peer reviewed, 2022)
      Comparative investigations of microplastic (MP) occurrence in the global ocean are often hampered by the application of different methods. In this study, the same sampling and analytical approach was applied during five ...

    • Microplastics in arctic invertebrates- Status on occurrence and recommendations for future monitoring 

      Grøsvik, Bjørn Einar; Granberg, Maria E.; Kögel, Tanja; Lusher, Amy; Gomiero, Alessio; Halldorsson, Halldor P.; Madsen, Alexander Klevedal; Baak, Julia E.; Guls, Hermann Dreki; Magnusson, Kerstin (Journal article; Peer reviewed, 2022)
      Few studies have been published on occurrence and distribution on microplastics (MPs) in invertebrates from the Arctic. We still need to develop harmonised methods to enable good comparison between studies taking into ...

    • Microrefugia and shifts of Hippophae tibetana (Elaeagnaceae) on the north side of Mt. Qomolangma (Mt. Everest) during the last 25000 years 

      Xu, Lu; Wang, Hao; La, Qiong; Lu, Fan; Sun, Kun; Fang, Yang; Yang, Mei; Zhong, Yang; Wu, Qianhong; Chen, Jiakuan; Birks, Harry John Betteley; Zhang, Wenju (Peer reviewed; Journal article, 2014-05-19)
      Microrefugia at high altitudes or high latitudes are thought to play an important role in the post-glacial colonization of species. However, how populations in such microrefugia have responded to climate changes in alternating ...

    • Microsomal triglyceride transfer protein in the ectoparasitic crustacean salmon louse (Lepeophtheirus salmonis) 

      Khan, Muhammad Tanveer; Dalvin, Sussie; Nilsen, Frank; Male, Rune (Peer reviewed; Journal article, 2017-08)
      The salmon louse, Lepeophtheirus salmonis, is an endemic ectoparasite on salmonid fish that is challenging for the salmon farming industry and wild fish. Salmon lice produce high numbers of offspring, necessitating ...

    • Migration of Atlantic salmon post-smolts in a fjord with high infestation pressure of salmon lice 

      Halttunen, Elina; Gjelland, Karl Øystein; Glover, Kevin; Johnsen, Ingrid Askeland; Serra-Llinares, Rosa-Maria; Skaala, Øystein; Nilsen, Rune; Bjørn, Pål Arne; Karlsen, Ørjan; Finstad, Bengt; Skilbrei, Ove Tommy (Peer reviewed; Journal article, 2018)
      Understanding Atlantic salmon Salmo salar post-smolt coastal migration behaviour is crucial for predicting their exposure to ecological challenges such as the parasite salmon louse Lepeophtheirus salmonis. We compared the ...

    • Miljø-DNA påvisning av Pasteurella atlantica gv. salmonicida 

      Holmeset, Matilde Grytten (Master thesis, 2022-05-16)
      Pasteurellose forårsaket av Pasteurella atlantica gv. salmonicida hos atlantisk laks (Salmo salar L.) har de siste årene etablert seg som en bakteriesykdom som truer fiskevelferd og bærekraftig produksjon i den norske ...

    • Miljøundersøking av Tveitevatnet og Fjøsangervassdraget i Bergen, med fokus på abbor (Perca fluviatilis) som indikatororganisme 

      Helgheim, Maja (Master thesis, 2015-01-28)
      Tveitevatnet (Årstad bydel, Bergen kommune) har lenge vore påverka av forureina sigevatn fra eit gammalt deponi på Slettebakken i tillegg til industri i næromradet, noko som har gjort at miljøgifter som PCB og tungmetall ...

    • Mining Lepeophtheirus salmonis RNA-Seq data for qPCR reference genes and their application in Caligus elongatus 

      Borchel, Andreas; Eichner, Christiane; Øvergård, Aina-Cathrine (Journal article; Peer reviewed, 2023)
      Lepeophtheirus salmonis and Caligus elongatus are two parasitic copepod species posing a significant threat to salmonid aquaculture. Consequently, several gene expression studies are executed each year to gain new knowledge ...

    • The Miocene: The Future of the Past 

      Steinthorsdottir, Margret; Coxall, Helen; De Boer, Agatha; Huber, Matthew; Barbolini, Natasha; Bradshaw, C.; Burls, N.; Feakins, Sarah; Gasson, E; Henderiks, Jorijntje; Holbourn, Ann E; Kiel, Steffen; Kohn, M; Knorr, Gregor; Kürschner, Wolfram Michael; Lear, Caroline H.; Liebrand, Diederik; Lunt, Daniel J; Mörs, Thomas; Pearson, Paul; Pound, Matthew J.; Stoll, Heather; Stromberg, C (Journal article; Peer reviewed, 2021)
      The Miocene epoch (23.03–5.33 Ma) was a time interval of global warmth, relative to today. Continental configurations and mountain topography transitioned toward modern conditions, and many flora and fauna evolved into the ...

    • Mitigation of oxygen decline in fjords by freshwater injection 

      Aksnes, Dag Lorents; Berntsen, Jarle Peder; Darelius, Elin Maria K. (Journal article; Peer reviewed, 2023)
      The exchange of water masses between deep fjords and the open ocean is commonly constrained by a topographical barrier called the sill. While fjord water above the sill depth communicates relatively freely with the open ...

    • Mitochondrial aquaporin-8-mediated hydrogen peroxide transport is essential for teleost spermatozoon motility 

      Chauvigné, François; Boj, Mónica; Finn, Roderick Nigel; Cerdà, Joan (Peer reviewed; Journal article, 2015-01-14)
      Reactive oxygen species (ROS), particularly hydrogen peroxide (H2O2), cause oxidative cell damage and inhibit sperm function. In most oviparous fishes that spawn in seawater (SW), spermatozoa may be exposed to harmful ROS ...