Department of Natural Sciences: Nye registreringer

Viser treff 1-20 av 417

    • Organic carbon export by marine mammal deadfalls in the Nordic Seas 

      Dyrland, Elisabeth Marie (Master thesis, 2024)
      The biological pump is a critical process in the oceanic carbon cycle, transferring organic carbon from the atmosphere and surface waters into the deep ocean and seafloor sediments. Organic carbon stored in living biomass ...

    • Passive acoustic monitoring of cetaceans in the Norwegian Skagerrak 

      Mokoroa Alberdi, Jon (Master thesis, 2024)
      Marine ecosystems have been under pressure for decades as a result of intensive human activity. Cetaceans have also been negatively affected by our actions, so to implement protection and conservation plans, it is crucial ...

    • Insights into lobster trap selectivity: exploring the role of local demography and behaviour for effective reserve monitoring 

      Ulset, Silje Marie (Master thesis, 2024)
      Human activities have a major effect on the world’s ecosystems including the marine environment, where harvesting practices often target individuals based on specific traits, resulting in selective fishing. This selective ...

    • Assessing the cleanup efforts at the historically polluted site in the Port of Liepaja, Karosta Channel. 

      Dobrotă, Alexandru-Sebastian (Master thesis, 2024)
      The presence of persistent contaminants in the sediments, such as heavy metals and hydrocarbons, can have long-lasting negative effects on marine ecosystems, resulting in harming both wildlife and humanity. It is critical ...

    • Evaluation of mitigation measures for Atlantic salmon and brown trout at hydropower plants and their prospect as selective agents 

      Haraldstad, Tormod (Doctoral dissertations at University of Agder;no. 314, Doctoral thesis, 2021)
      Renewable energy contributes towards the world`s growing energy demands and urgent need for mitigating climate change. However, these renewable sources of energy may have localized, detrimental environmental effects. For ...

    • Atmospheric brightening counteracts warming-induced delays in autumn phenology of temperate trees in Europe 

      Wu, Zhaofei; Chen, Shouzhi; De Boeck, Hans J.; Stenseth, Nils Christian; Tang, Jing; Vitasse, Yann; Wang, Shuxin; Zohner, Constantin; Fu, Yongshuo H. (Peer reviewed; Journal article, 2021)
      Aim Ongoing climate warming has been widely reported to delay autumn phenology, which in turn impacts carbon, water, energy and nutrient balances at regional and global scales. However, the underlying mechanisms of autumn ...

    • Incidence of persistent contaminants through blue mussels biomonitoring from Flekkefjord fjord and their relevance to food safety 

      Parolini, Marco; Panseri, Sara; Gaeta, Federico Håland; Ceriani, Federica; De Beatrice, Felice; Nobile, Maria; Rafoss, Trond; Schnell, Jeff; Herrada, Isaline; Arioli, Francesco; Chiesa, Luca Maria (Peer reviewed; Journal article, 2020)
      Dredging activities can lead to the re-suspension of contaminated sediments, resulting in a potential hazard for the whole ecosystem and also for human health. Six-month active biomonitoring was performed in order to monitor ...

    • Battle of the borders: Is a range-extending fiddler crab affecting the spatial niche of a congener species? 

      Arakaki, Jonathann Yukio; De Grande, Fernando Rafael; Arvigo, Alexandre Luiz; Pardo, Juan Carlos Farias; Fogo, Bruno Rafael; Sanches, Fábio HC; Miyai, Caio Akira; Marochi, Murilo Zanetti; Tânia, Costa (Peer reviewed; Journal article, 2020)
      Climate change is drastically altering environmental conditions and resource availability. Many organisms are shifting their distribution boundaries. Fiddler crabs, for instance, are important ecosystem engineers in coastal ...

    • Drivers of spatial and temporal micro- and mesozooplankton dynamics in an estuary under strong anthropogenic influences (The Eastern Scheldt, Netherlands) 

      Horn, Henriette G.; van Rijswijk, Pieter; Soetaert, Karline; van Oevelen, Dick (Peer reviewed; Journal article, 2023)
      The Eastern Scheldt estuary in the Netherlands has been anthropogenically changed by the construction of a storm surge barrier about 30 years ago, affecting abiotic conditions as well as phytoplankton and zooplankton (ZP). ...

    • Respiration rate scales inversely with sinking speed of settling marine aggregates 

      Spilling, Kristian; Heinemann, Malte; Vanharanta, Mari; Baumann, Moritz; Noche Ferreira, Andrea; Suessle, Philipp; Riebesell, Ulf (Peer reviewed; Journal article, 2023)
      Sinking marine aggregates have been studied for a long time to understand their role in carbon sequestration. Traditionally, sinking speed and respiration rates have been treated as independent variables, but two recent ...

    • Hazard and catch composition of ghost fishing gear revealed by a citizen science clean-up initiative 

      Thorbjørnsen, Susanna Huneide; Synnes, Ann-Elin; Løset, Ingrid Disch; Kleiven, Alf Ring (Peer reviewed; Journal article, 2022)
      Ghost fishing, the continued catch of fishes and invertebrates by lost fishing gear, represents an animal welfare issue as well as a waste of both potential food and ecosystem resources. Fishing gear is lost by both ...

    • Extracellular enzyme activity in the coastal upwelling system off Peru: A mesocosm experiment 

      Spilling, Kristian; Piiparinen, Jonna; Achterberg, Eric P.; Arístegui, Javier; Bach, Lennart T.; Camarena-Gómez, Maria T.; Von Der Esch, Elisabeth; Fischer, Martin A.; Gómez-Letona, Markel; Hernández-Hernández, Nauzet; Meyer, Judith; Schmitz, Ruth A.; Riebesell, Ulf (Peer reviewed; Journal article, 2023)
      The Peruvian upwelling system is a highly productive ecosystem with a large oxygen minimum zone (OMZ) close to the surface. In this work, we carried out a mesocosm experiment off Callao, Peru, with the addition of water ...

    • Post-glacial colonization of the Fennoscandian coast by a plant parasitic insect with an unusual life history 

      Solbreck, Christer; Cassel-Lundhagen, Anna; Laugen, Ane Timenes; Kaňuch, Peter (Peer reviewed; Journal article, 2023)
      Species that exhibit very peculiar ecological traits combined with limited dispersal ability pose a challenge to our understanding of ecological and evolutionary mechanisms. This is especially true when they have managed ...

    • Growth of fungi and yeasts in food production waste streams: a feasibility study 

      Bansfield, D.; Spilling, Kristian; Mikola, A.; Piiparinen, J. (Peer reviewed; Journal article, 2023)
      Food production produces nutrient-rich waste streams which, depending on local legislation, are either sent to wastewater treatment plants or discharged into the environment. In addition to causing environmental harm in ...

    • Reliktfloraen på våre middelalderlige kirkesteder 

      Åsen, Per Arvid (Journal article; Peer reviewed, 2023)
      Mange nytteplanter ble innført og dyrket i Norden i vikingtid og middelalder. Reliktplanter er levende fortidsminner som på forskjellig vis har overlevd siden de ble introdusert. Over 600 kirkesteder fra middelalderen er ...

    • Does sedation with AQUI-S® mitigate transport stress and post transport mortality in ballan wrasse (Labrus bergyltae)? 

      Calabrese, Sara; Jonassen, Thor Magne; Steigum, Endre; Åsnes, Helga Øen; Imsland, Albert; Saude, Carolina Serra; Wergeland, Truls; Höglund, Erik (Peer reviewed; Journal article, 2024)
      Ballan wrasse (Labrus bergylta) are commonly used as cleaner fish in salmon farms as a biological treatment to mitigate sea lice infestation. Improved welfare for cleaner fish both during production of these fish and when ...

    • No additional stress of sublethal gas supersaturation in a landlocked population of Atlantic salmon (Salmo salar) exposed to environmental acidification 

      Höglund, Erik; Loland, Lifen Zhou; Høgberget, Rolf; Skov, Peter Vilhelm; Velle, Gaute (Peer reviewed; Journal article, 2024)
      The landlocked Atlantic salmon population “bleke” faces extinction due to environmental acidification (EA) and hydropower expansion in the Norwegian river Otra. Despite of restoration, unexpected mortality has been reported ...

    • Microzooplankton communities and their grazing of phytoplankton under artificial upwelling in the oligotrophic ocean 

      Spilling, Kristian; Arellano San Martín, Mirian; Granlund, Mira; Schulz, Kai G.; Spisla, Carsten; Vanharanta, Mari; Goldenberg, Silvan Urs; Riebesell, Ulf (Peer reviewed; Journal article, 2023)
      Ocean artificial upwelling has been suggested to boost primary production and increase harvestable resources such as fish. Yet, for this ecosystem-based approach to work, an effective energy transfer up the food web is ...

    • Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) 

      Helmerson, Cecilia; Weist, Peggy; Brieuc, Marine Servane Ono; Maurstad, Marius Filomeno; Schade, Franziska Maria; Dierking, Jan; Petereit, Christoph; Knutsen, Halvor; Metcalfe, Julian; Righton, David; André, Carl; Krumme, Uwe; Jentoft, Sissel; Hanel, Reinhold (Peer reviewed; Journal article, 2023)
      Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence ...

    • How genomics can help biodiversity conservation 

      Theissinger, Kathrin; Fernandes, Carlos; Formenti, Giulio; Bista, Iliana; Berg, Paul Ragnar; Bleidorn, Christoph; Bombarely, Aureliano; Crottini, Angelica; Gallo, Guido R.; Godoy, José A.; Jentoft, Sissel; Malukiewicz, Joanna; Mouton, Alice; Oomen, Rebekah Alice; Paez, Sadye; Palsbøll, Per J.; Pampoulie, Christophe; Ruiz-López, María J.; Secomandi, Simona; Svardal, Hannes; Theofanopoulou, Constantina; de Vries, Jan; Waldvogel, Ann-Marie; Zhang, Guojie; Jarvis, Erich D.; Bálint, Miklós; Ciofi, Claudio; Waterhouse, Robert M.; Mazzoni, Camila J.; Höglund, Jacob; Aghayan, Sargis A.; Alioto, Tyler S.; Almudí, Isabel; Alvarez, Nadir; Alves, Paulo C.; do Rosario, Isabel R. Amorim; Antunes, Agostinho; Arribas, Paula; Baldrian, Petr; Bertorelle, Giorgio; Böhne, Astrid; Bonisoli-Alquati, Andrea; Boštjančić, Ljudevit L.; Boussau, Bastien; Breton, Catherine M.; Buzan, Elena; Campos, Paula F.; Carreras, Carlos; Castro, L. Filipe C.; Chueca, Luis J.; Gilbert, Marcus Thomas Pius; Heintzman, Peter D.; Jakobsen, Kjetill Sigurd; Matschiner, Michael; Zammit, Gabrielle (Peer reviewed; Journal article, 2023)
      The availability of public genomic resources can greatly assist biodiversity assessment, conservation, and restoration efforts by providing evidence for scientifically informed management decisions. Here we survey the main ...