Viser treff 408-427 av 929

    • Global aquaculture growth and institutional quality 

      Nadarajah, Suthamathy; Flaaten, Ola (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10)
      The global aquaculture sector has grown continuously over the past 40 years, though unevenly among countries. Differences in factors such as inputs, climate, management, technology, markets, social environment, and institutions might be reasons for the disparities in growth. This study focuses on institutions, by analyzing the relationship between annual growth in the production of the major aquaculture ...
    • Global consortium for the classification of fungi and fungal-like taxa 

      Hyde, Kevin D.; Abdel-Wahab, Mohamed A.; + 386 authors, +; Rämä, Teppo; + 167 authors, . (Journal article; Tidsskriftartikkel, 2023-12-12)
      The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-career and early-career mycologists and plant pathologists. ...
    • Global ecological, social and economic impacts of marine plastic 

      Beaumont, Nicola J; Aanesen, Margrethe; Austen, Melanie C.; Borger, Tobias; Clark, James R; Cole, Matthew; Hooper, Tara; Lindeque, Penelope K.; Pascoe, Christine; Wyles, Kayleigh J (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-27)
      This research takes a holistic approach to considering the consequences of marine plastic pollution. A semi-systematic literature review of 1191 data points provides the basis to determine the global ecological, social and economic impacts. An ecosystem impact analysis demonstrates that there is global evidence of impact with medium to high frequency on all subjects, with a medium to high degree of ...
    • GoDental! Enhancing flipped classroom experience with game‐based learning 

      Borit, Melania; Stangvaltaite-Mouhat, Lina (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-10)
      <i>Aim</i> - To investigate the use of game‐based learning (GBL) to enhance students’ experience of the flipped classroom (FC) in dental education.<p> <p><i>Materials and Methods</i> - Students participated in three sessions organised as FC, implemented either as conventional FC or FC augmented with the GoDental! game. In the pre‐class phase, sessions 1 and 2 were organised as instructor‐made ...
    • Governance implications for the implementation of biodegradable gillnets in Norway 

      Standal, Dag; Grimaldo, Eduardo; Larsen, Roger B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-15)
      Gillnets are among the most widely used fishing gear in global fisheries because of their simplicity, high operability, catch efficiency and low entrance cost for fishermen. In Norway, the Northeast Atlantic (NEA) cod (<i>Gadus morhua</i>) fishing industry represents the most important economic single species fishery and the gillnet fishery accounts for 24% of the national total allowable catch (TAC) ...
    • Governing the fisher body – safety as body-politics and fisheries governance 

      Sønvisen, Signe Annie; Thorvaldsen, Trine; Johnsen, Jahn Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-07-12)
      Body Mass Index (BMI) is not only the prevailing tool used for defining and diagnosing obesity, but it is also a tool that intervenes into fisheries governance, and into fishers’ lives and bodies. All fishers on board vessels over 100 gross tons (GT) must hold a seaman’s licence; too high a BMI may lead to a “loss-of-licence” and the inability to undertake their occupation. From a governmentality ...
    • Governing the welfare of Norwegian farmed salmon: three conflict cases 

      Stien, Lars Helge; Tørud, Brit; Gismervik, Kristine; Lien, Marianne Elisabeth; Medaas, Christian; Osmundsen, Tonje Cecilie; Kristiansen, Tore S; Størkersen, Kristine Vedal (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-10)
      To obtain insight into perceptions of how fish welfare and health is governed in Norwegian aquaculture, this study investigates three conflict cases: salmon lice, pancreas disease and farm siting. Using surveys and in-depth interviews, it highlights challenges and solutions as perceived from different professional groups. The results show that the current inflexible limit of the number of salmon ...
    • The greening of Norwegian salmon production 

      Hersoug, Bjørn (Journal article; Peer reviewed; Tidsskriftartikkel, 2015-11-16)
      The Norwegian salmon industry has, in terms of production and economic results, been a great success. However, due to environmental problems such as sea lice and escapes, the industry encounters increasing resistance from many quarters, headed by the wild salmon sport fishers. In order to improve the image of the industry, the fisheries authorities have suggested four new reforms that all ...
    • Growth performance, hepatic enzymes, and gut health status of common carp (Cyprinus carpio) in response to dietary Cetobacterium somerae fermentation product 

      Xie, Mingxu; Hao, Qiang; Olsen, Rolf Erik; Ringø, Einar; Yang, Yalin; Zhang, Zhen; Ran, Chao; Zhou, Zhigang (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-15)
      Intensive aquaculture practices compromise the health of fish. Probiotics especially those isolated from aquatic animals play important roles in improving fish health. The aim of the study was to evaluate the effects of stabilized fermentation product of Cetobacterium somerae (XMX-1) on the growth performance, gut and liver health of common carp. A total of 300 carps (initial weight of 2.32 ± 0.02 ...
    • Growth strategies of Chlorella vulgaris in seawater for a high production of biomass and lipids suitable for biodiesel 

      Rautenberger, Ralf; Detain, Alexandre; Skjånes, Kari; Schulze, Peter Simon Claus; Kiron, Viswanath; Morales Sanchez, Daniela (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-12-09)
      Chlorella vulgaris is a freshwater microalga that synthesises large amounts of saturated lipids, which makes it suitable for production of bioenergy and biofuels. Since its cultivation usually requires freshwater, it competes with agriculture, economic development and ecological conservation for this limited natural resource. This study investigated the possibility of the partial replacement of ...
    • Guidelines for co-creating climate adaptation plans for fisheries and aquaculture 

      Pham, Thi Thanh Thuy; Friðriksdóttir, Ragnhildur; Weber, Charlotte Teresa; Viðarsson, Jónas R.; Papandroulakis, Nikos; Baudron, Alan; Olsen, Petter; Arias-Hansen, Juliana; Laksá, Unn; Fernandes, Paul G.; Bahri, Tarub; Ragnarsson, Sigurður Ö; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-27)
      Climate change is having a significant impact on the biology and ecology of fish stocks and aquaculture species and will affect the productivity within seafood supply chains in the future. The challenges are further amplified when actors within the fisheries and aquaculture sectors have very different ideas and assumptions about climate change and what risks and opportunities they entail. In order ...
    • Haematology and clinical blood chemistry in harbour porpoises (Phocoena phocoena) from the inner Danish waters 

      Siebert, Ursula; Blanchet, Marie-Anne; Teilmann, Jonas; Anderson Hansen, Kirstin; Kristensen, Jakob; Bunskoek, Paulien; Dietz, Rune; Desforges, Jean-Pierre; Sonne, Christian; Desportes, Geneviève (Journal article; Tidsskriftartikkel, 2020-07-13)
      Harbour porpoises (<i>Phocoena phocoena</i>) in the Baltic Sea are under increasing pressure from anthropogenic activities, which affect the overall health of populations. Individuals’ haematologic and biochemistry parameters are known to be linked to a population’s health status and are therefore useful tools for cross-population comparisons and to assess health patterns of a population through ...
    • Harvest control rules in modern fisheries management 

      Kvamsdal, Sturla F; Eide, Arne; Ekerhovd, Nils-Arne; Enberg, Katja; Gudmundsdottir, Asta; Hoel, Alf Håkon; Mills, Katherine E.; Mueter, Franz J.; Ravn-Jonsen, Lars; Sandal, Leif Kristoffer; Stiansen, Jan Erik; Vestergaard, Niels (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-07-20)
      Harvest control rules have become an important tool in modern fisheries management, and are increasingly adopted to provide continuity in management practices, to deal with uncertainty and ecosystem considerations, and to relieve management decisions from short-term political pressure. We provide the conceptual and institutional background for harvest control rules, a discussion of the structure of ...
    • Hav, fisk og ressursforvaltning i nordområdene 

      Hoel, Alf Håkon (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-12-08)
      Mesteparten av norske havområder ligger nord for polarsirkelen og er åsted for noen av verdens rikeste fiskerier. De største fiskebestandene er delt med andre land, og internasjonalt samarbeid om ressursforvaltningen er derfor en viktig dimensjon ved nordområdepolitikken. Slikt samarbeid er basert på globale normer om hvordan levende marine ressurser skal forvaltes og deles og foregår på en rekke ...
    • Have environmental preferences and willingness to pay remained stable before and during the global Covid-19 shock? 

      Hynes, Stephen; Armstrong, Claire W.; Bui, Bich Xuân; Ankamah-Yeboah, Isaac; Tinch, Robert; Ressurreição, Adriana (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-07)
      This study tests the stability of environmental preferences and willingness to pay (WTP) values using a discrete choice experiment (DCE) across three countries pre and post the peak of the first wave of the Covid-19 pandemic. A DCE eamining the public’s preferences for alternative environmental management plans on the high seas, in the area of the Flemish Cap, was carried out in Canada, Scotland ...
    • A head start for an invasive species in a strongly seasonal environment? Growth of Elodea canadensis in boreal lakes 

      Tattersdill, Kristina; Ecke, Frauke; Frainer, André; McKie, Brendan G. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-20)
      Many invasive species are expanding northwards into boreal and subarctic habitats, but research on the factors favoring their establishment in these regions remains limited. In three Swedish lakes we investigated the growth of Elodea canadensis Michx, a highly invasive macrophyte that is spreading northwards in Europe and Alaska. We conducted an in situ growth experiment, maintained for ten months, ...
    • Heat treatment increases the protein bioaccessibility in the red seaweed dulse (Palmaria palmata), but not in the brown seaweed winged kelp (Alaria esculenta) 

      Mæhre, Hanne K; Edvinsen, Guro Kristine; Eilertsen, Karl-Erik; Elvevoll, Edel Oddny (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-04-25)
      Bioaccessibility of plant proteins has been shown to be inferior to that of proteins of animal origin. Heat treatment has been shown to positively affect this in some plants. The aim of this study was to investigate the effect of heat treatment on bioaccessibility of seaweed proteins. An in vitro gastrointestinal digestion model was used for evaluation of potential effects on the brown seaweed Alaria ...
    • Heavy Metals in Salt Marsh Sediments of Porteresia Bed along the Karnafully River Coast, Chittagong 

      Siddique, Mohammad Abdul Momin; Aktar, Mahbuba (Journal article; Tidsskriftartikkel; Peer reviewed, 2012-09-30)
      Heavy metal (Cu, Zn, Cd, Pb and Fe) concentrations in salt marsh sediments of the Karnafully River coast were investigated in this study. Sediment samples of four different sites were analysed for selected heavy metals by AAS (atomic absorption spectrophotometry). The mean values of heavy metals were 45.79 µg/g for Cu, 105.0 µg/g for Zn, 0.43 µg/g for Cd, 26.70 µg/g for Pb and 3297.38 µg/g for Fe ...
    • Hepatic melanomacrophage centers in the arctic cultured fish Cyclopterus lumpus are not indicative of its health state 

      Passantino, Letizia; Corriero, Aldo; Pousis, Christo; Zupa, Rosa; Perillo, Antonella; Superio, Joshua Lustracion; Swain, Jaya Kumari; Foss, Atle; Galindo-Villegas, Jorge; Ventriglia, Gianluca (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-11-26)
      The lumpfish, Cyclopterus lumpus, holds significant promise as a candidate for large-scale aquaculture production, particularly in its role as a cleaner fish used to manage sea lice infestations in Atlantic salmon Salmo salar farming. Melanomacrophage centers (MMCs) represent polymorphic structures present in the hemolymphopoietic organs of various vertebrates, serving as a widely applicable ...
    • Heterochronic maturation of anatomical plugs for protecting the airway in rorqual whales (Balaenopteridae) 

      Lauridsen, Henrik; Bie Thøstesen, Charlotte; Pedersen, Christina Carøe Ejlskov; Ringgaard, Steffen; Elstrup, Mette; Møller, Peter Daniel Rask; Johansson, Daniel Klingberg; Alstrup, Aage Kristian Olsen (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-12-14)
      Recently, a unique mechanism for protecting the airway during lunge feeding was discovered in rorqual whales (Balaenopteridae). This mechanism is based on an oral plug structure in the soft palate with similarities in musculo-fatty composition to the nasal plugs protecting the respiratory tract of rorquals from water entry and barotrauma during diving. As a follow-up, we present here a ...