Browsing Department of Biological Sciences by Title

Now showing items 1415-1434 of 2219

    • Morphomolecular alterations in the skin mucosa of Atlantic salmon (Salmo salar) after exposure to peracetic acid-based disinfectant 

      Lazado, Carlo C.; Haddeland, Sindre; Timmerhaus, Gerrit; Berg, Ragnhild Stenberg; Merkin, Grigory; Pittman, Karin; Pedersen, Lars-Flemming (Journal article; Peer reviewed, 2020)
      Peroxygen-based chemotherapeutants are commonly used in treating ectoparasitic infections in fish. A majority of relevant studies address the effects of these substances on the targeted causative agents, but little is known ...

    • Mortality, Recruitment and Change of Desert Tree Populations in a Hyper-Arid Environment 

      Andersen, Gidske L.; Krzywinski, Knut (Peer reviewed; Journal article, 2007-02-14)
      Background: Long-term vegetation changes in hyper-arid areas have long been neglected. Mortality, recruitment and change in populations of the ecologically and culturally important and drought persistent Acacia tortilis ...

    • Motivert for å lære -en studie av biologistudenters syn på egen læring 

      Dørum, Henrik Handal (Master thesis, 2014-06-01)
      Universitetet i Bergen ble i år 2014 i samarbeid med Universitetssenteret på Svalbard og Havforskningsinstituttet tildelt ett av tre nye sentre for fremragende utdanning med konseptet «Centre for Excellence in Biology ...

    • Mouthrot in farmed Atlantic salmon 

      Frisch, Kathleen Marie (Doctoral thesis, 2018-12-05)
      Mouthrot is a major health and welfare problem in farmed Atlantic salmon (Salmo salar) smolts in the Pacific Northwest (West Coast of North America), particularly in the first few months following saltwater transfer. This ...

    • Moving forward in microplastic research: A Norwegian perspective 

      Lusher, Amy; Hurley, Rachel; Arp, Hans Peter H; Booth, Andy; Bråte, Inger Lise Nerland; Gabrielsen, Geir W.; Gomiero, Alessio; Gomes, Tania; Grøsvik, Bjørn Einar; Green, Norman; Haave, Marte; Hallanger, Ingeborg G.; Halsband, Claudia; Herzke, Dorte; Joner, Erik J; Kögel, Tanja; Rakkestad, Kirsten; Ranneklev, Sissel Brit; Wagner, Martin; Olsen, Marianne (Journal article; Peer reviewed, 2021)
      Given the increasing attention on the occurrence of microplastics in the environment, and the potential envi-ronmental threats they pose, there is a need for researchers to move quickly from basic understanding to applied ...

    • MRTF specifies a muscle-like contractile module in Porifera 

      Colgren, Jeffrey John; Nichols, S.A. (Journal article; Peer reviewed, 2022)
      Muscle-based movement is a hallmark of animal biology, but the evolutionary origins of myocytes are unknown. Although believed to lack muscles, sponges (Porifera) are capable of coordinated whole-body contractions that ...

    • Mucosal immune and stress responses of Neoparamoeba perurans-infected Atlantic salmon (Salmo salar) treated with peracetic acid shed light on the host-parasite-oxidant interactions 

      Lazado, Carlo C.; Strand, David; Breiland, Mette Serine Wesmajervi; Furtado, Francisco; Timmerhaus, Gerrit; Gjessing, Mona Cecilie; Hytterød, Sigurd; Merkin, Grigory; Pedersen, Lars Flemming; Pittman, Karin Anna; Krasnov, Aleksei (Journal article; Peer reviewed, 2022)
      Treatment development for parasitic infestation is often limited to disease resolution as an endpoint response, and physiological and immunological consequences are not thoroughly considered. Here, we report the impact of ...

    • Mucosal responses in post-smolt Atlantic salmon (S. salar) following salmon lice (L. salmonis) infections 

      Hallberg, Trygve Sagen (Master thesis, 2018-05-04)
      The aquaculture sector is becoming increasingly important both for food production and economic reasons. The main problem today in Norwegian aquaculture is the copepod ectoparasite Leopeophtheirus salmonis which limits the ...

    • A multi-dating approach to age-modelling long continental records: The 135 ka El Cañizar de Villarquemado sequence (NE Spain) 

      Valero-Garcés, Blas L.; González-Sampériz, Penélope; Gil-Romera, Graciela; Benito De Pando, Blas Manuel; Moreno, Ana; Oliva-Urcia, Belén; Aranbarri, Josu; García-Prieto, Eduardo; Frugone, Matías; Morellón, Mario; Arnold, Lee J.; Demuro, Martina; Hardiman, Mark J.; Blockley, Simon P.E.; Lane, Christine S. (Peer reviewed; Journal article, 2019)
      We present a multidisciplinary dating approach - including radiocarbon, Uranium/Thorium series (U/Th), paleomagnetism, single-grain optically stimulated luminescence (OSL), polymineral fine-grain infrared stimulated ...

    • Multi-decadal warming of Atlantic water and associated decline of dissolved oxygen in a deep fjord 

      Aksnes, Dag Lorents; Aure, Jan; Johansen, Per-Otto; Johnsen, Geir Helge; Salvanes, Anne Gro Vea (Peer reviewed; Journal article, 2019-11)
      Previous studies have shown decline in dissolved oxygen of the ocean basins. A hypothesis for this development is that ocean warming through increased stratification has caused reduced ventilation of the interior ocean. ...

    • Multi-frequency acoustic discrimination between gas bubble plumes and biological targets in the ocean 

      Kubilius, Rokas (Doctoral thesis, 2015-06-18)
      Seabed-originating gas bubble seeps have been observed worldwide from a variety of sources (e.g. Hovland and Judd, 1988) and are most frequently composed of methane and carbon dioxide. Some seabed gas leaks, such as ...

    • Multi-locus variable-number tandem-repeat analysis of the fish-pathogenic bacterium Yersinia ruckeri by multiplex PCR and capillary electrophoresis 

      Gulla, Snorre; Mohammad, Saima; Colquhoun, Duncan John (Peer reviewed; Journal article, 2019-06-17)
      Yersinia ruckeri is an important pathogen of farmed salmonids worldwide, but simple tools suitable for epizootiological investigations (infection tracing, etc.) of this bacterium have been lacking. A Multi-Locus Variable-number ...

    • Multi-proxy studies in palaeolimnology 

      Birks, Hilary H.; Birks, Harry John Betteley (Peer reviewed; Journal article, 2006)
      Multi-proxy studies are becoming increasingly common in palaeolimnology. Eight basic requirements and challenges for a multi-proxy study are outlined in this essay – definition of research questions, leadership, site ...

    • Multidisciplinary perspectives on living marine resources in the Arctic 

      Kvamsdal, Sturla Furunes; Dankel, Dorothy Jane; Ekerhovd, Nils-Arne; Hoel, Alf Håkon; Renner, Angelika; Sandø, Anne Britt; Steinshamn, Stein Ivar (Journal article; Peer reviewed, 2022)
      Many areas in the Arctic are vulnerable to the impacts of climate change. We observe large-scale effects on physical, biological, economic and social parameters, including ice cover, species distributions, economic activity ...

    • A multilevel dataset of microplastic abundance in the world’s upper ocean and the Laurentian Great Lakes 

      Isobe, Atsuhiko; Azuma, Takafumi; Cordova, Muhammad Reza; Cózar, Andrés; Galgani, Francois; Hagita, Ryuichi; Kanhai, La Daana; Imai, Keiri; Iwasaki, Shinsuke; Kako, Shin’ichro; Kozlovskii, Nikolai; Lusher, Amy L; Mason, Sherri A; Michida, Yutaka; Mituhasi, Takahisa; Morii, Yasuhiro; Mukai, Tohru; Popova, Anna; Shimizu, Kenichi; Tokai, Tadashi; Uchida, Keiichi; Yagi, Mitsuharu; Zhang, Weiwei (Journal article, 2021)
      A total of 8218 pelagic microplastic samples from the world’s oceans were synthesized to create a dataset composed of raw, calibrated, processed, and gridded data which are made available to the public. The raw microplastic ...

    • Multilocus sequence analysis reveals different lineages of Pseudomonas anguilliseptica associated with disease in farmed lumpfish (Cyclopterus lumpus L.) 

      Mjølnerød, Even Bysveen; Nilsen, Hanne Katrine; Gulla, Snorre; Riborg, Andreas Ekroll; Bottolfsen, Kirsten; Wiklund, Tom; Christiansen, Debes; Romalde López, Jesús Ángel; Scholz, Felix; Colquhoun, Duncan John (Journal article; Peer reviewed, 2021)
      The bacterium Pseudomonas anguilliseptica has in recent years emerged as a serious threat to production of lumpfish in Norway. Little is known about the population structure of this bacterium despite its association with ...

    • Multilocus Sequence Typing (MLST) and Random Polymorphic DNA (RAPD) Comparisons of Geographic Isolates of Neoparamoeba perurans, the Causative Agent of Amoebic Gill Disease 

      Johnson-Mackinnon, Jessica C.; Crosbie, Philip B.B.; Karlsbakk, Egil; Marcos-Lopez, Mar; Paley, Richard; Nowak, Barbara F.; Bridle, Andrew R. (Journal article; Peer reviewed, 2019)
      Neoparamoba perurans, is the aetiological agent of amoebic gill disease (AGD), a disease that affects farmed Atlantic salmon worldwide. Multilocus sequence typing (MLST) and Random Amplified Polymorphic DNA (RAPD) are ...

    • Multilocus variable-number tandem-repeat analysis of Yersinia ruckeri confirms the existence of host specificity, geographic endemism, and anthropogenic dissemination of virulent clones 

      Gulla, Snorre; Barnes, Andrew C.; Welch, Timothy J.; Romalde, Jesús L.; Ryder, David; Ormsby, Michael J.; Carson, Jeremy; Lagesen, Karin; Verner-Jeffreys, David W.; Davies, Robert L.; Colquhoun, Duncan John (Peer reviewed; Journal article, 2018-08)
      A multilocus variable-number tandem-repeat analysis (MLVA) assay was developed for epizootiological study of the internationally significant fish pathogen Yersinia ruckeri, which causes yersiniosis in salmonids. The assay ...

    • Multiomics in the central Arctic Ocean for benchmarking biodiversity change 

      Mock, Thomas; Boulton, William; Balmonte, John-Paul; Barry, Kevin; Bertilsson, Stefan; Bowman, Jeff; Buck, Moritz; Bratbak, Gunnar; Chamberlain, Emelia J.; Cunliffe, Michael; Creamean, Jessie; Ebenhöh, Oliver; Eggers, Sarah Lena; Fong, Allison A.; Gardner, Jessie; Gradinger, Rolf Rudolf; Granskog, Mats A.; Havermans, Charlotte; Hill, Thomas; Hoppe, Clara J.M.; Korte, Kerstin; Larsen, Aud; Müller, Oliver; Nicolaus, Anja; Oldenburg, Ellen; Popa, Ovidiu; Rogge, Swantje; Schäfer, Hendrik; Shoemaker, Katyanne; Snoeijs-Leijonmalm, Pauline; Torstensson, Anders; Valentin, Klaus; Vader, Anna; Barry, Kerrie; Chen, I-M A; Clum, Alicia; Copeland, Alex; Daum, Chris; Eloe-Fadrosh, Emiley; Foster, Brian; Foster, Bryce; Grigoriev, Igor V.; Huntemann, Marcel; Ivanova, Natalia; Kuo, Alan; Kyrpides, Nikos C.; Mukherjee, Supratim; Palaniappan, Krishnaveni; Reddy, T.B.K.; Salamov, Asaf; Roux, Simon; Varghese, Neha; Woyke, Tanja; Wu, Dongying; Leggett, Richard M.; Moulton, Vincent; Metfies, Katja (Journal article; Peer reviewed, 2022-10-17)
      Multiomics approaches need to be applied in the central Arctic Ocean to benchmark biodiversity change and to identify novel species and their genes. As part of MOSAiC, EcoOmics will therefore be essential for conservation ...

    • Multiomics Provide Insights into the Key Molecules and Pathways Involved in the Physiological Adaptation of Atlantic Salmon (Salmo salar) to Chemotherapeutic-Induced Oxidative Stress 

      Lazado, Carlo C.; Timmerhaus, Gerrit; Breiland, Mette Serine Wesmajervi; Pittman, Karin Anna; Hytterød, Sigurd (Journal article; Peer reviewed, 2021)
      Although chemotherapeutics are used to treat infections in farmed fish, knowledge on how they alter host physiology is limited. Here, we elucidated the physiological consequences of repeated exposure to the potent oxidative ...