Viser treff 710-729 av 929

    • Qualitative and Quantitative Comparison of Liquid–Liquid Phase Extraction Using Ethyl Acetate and Liquid–Solid Phase Extraction Using Poly-Benzyl-Resin for Natural Products 

      Schneider, Yannik Karl-Heinz; Andersen, Jeanette Hammer; Hansen, Espen; Jørgensen, Solveig M. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-11-01)
      A key step in the process of isolating microbial natural products is the preparation of an extract from a culture. This step determines which molecules will be available for detection in the subsequent chemical and biological analysis of a biodiscovery pipeline. In the present study we wanted to document potential differences in performance between liquid–liquid extraction using ethyl acetate ...
    • Quality aspects of fillet, loin and tail products made from live-stored feed-deprived Atlantic cod (Gadus morhua L.) at different times post mortem 

      Ageeva, Tatiana Nikolaevna; Olsen, Ragnar Ludvig; Joensen, Sjurdur; Esaiassen, Margrethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-18)
      During last decade, the amount of live-caught Atlantic cod stored in sea cages has increased. However, the issues of feeding regime during live-storage and time of processing after slaughter are central to provide high quality products. The goal of this study was to investigate how the quality of fresh fillet, loin and tail products can be affected by the length of feed-deprivation and the ...
    • Quality of obstetric care in the sparsely populated sub-arctic area of Norway 2009-2011 

      Norum, Jan; Heyd, Anca Kriemhilde; Hjelseth, Bente; Svee, Tove Elisabeth; Mürer, Fred A; Erlandsen, Randi; Vonen, Barthold (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Background: It is challenging to obtain high quality obstetric care in a sparsely populated area. In the subarctic region of Norway, significant distances, weather conditions and seasonable darkness have called for a decentralized care model. We aimed to explore the quality of this care. Methods: A retrospective study employing data (2009–11) from the Medical Birth Registry of Norway was initiated. ...
    • Quantification of bell-shaped size selectivity in shrimp trawl fisheries using square mesh panels and a sorting cone after a Nordmøre grid 

      Sistiaga, Manu Berrondo; Herrmann, Bent; Larsen, Roger B.; Brinkhof, Jesse (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-12)
      Shrimp trawlers in the Barents Sea use a Nordmøre sorting grid ahead of a small-mesh codend to avoid bycatch while catching shrimps efficiently. However, small fish can still pass through the grid to enter the codend, which increases their risk of being retained. In this study, we quantified the selectivity of a standard Nordmøre grid used together with one of two different codend designs, namely a ...
    • Quantification of catch composition in fisheries: A methodology and its application to compare biodegradable and nylon gillnets 

      Cerbule, Kristine; Savina, Esther; Herrmann, Bent; Larsen, Roger B.; Feekings, Jordan Paul; Krag, Ludvig Ahm; Pellegrinelli, Alina (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-01)
      When evaluating fishing gear catches, the focus is often on a few species as opposed to the entire catch. In some fisheries this can lead to ignoring major part of catch composition. Thus, there is a need for a more holistic approach when evaluating the ecological impact of using a specific fishing gear and when comparing two or more gears. In this context, it is relevant to have a method that ...
    • Quantification of gear inflicted damages on trawl-caught haddock in the Northeast Atlantic fishery 

      Sistiaga, Manu; Herrmann, Bent; Brinkhof, Jesse; Larsen, Roger B.; Jacques, Nadine; Santos, Juan; Gjøsund, Svein Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-12)
      External damages are indicators of the overall quality of fish and fish welfare. Haddock is an important commercial species widespread in the North Atlantic, but few studies related to quality have been carried out on this species. We studied the levels of external damages on haddock captured with a demersal trawl in the Northeast Atlantic. Further, we investigated to what extent the compulsory ...
    • Quantifying the performance of selective devices by combining analysis of catch data and fish behaviour observations: methodology and case study on a flatfish excluder 

      Santos, Juan; Herrmann, Bent; Stepputtis, Daniel; Kraak, Sarah B. M.; Gökce, Gökhan; Mieske, Bernd (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-11-06)
      This article describes a method for the quantitative analysis of fish behaviour relative to selection devices in trawl gears. Based on video observations, the method estimates probabilities for a given event to happen and establishes behavioural tree diagrams representing and quantifying behavioural patterns in relation to the selection device under assessment. Double bootstrapping is used to account ...
    • Quantum Leaper: A Methodology Journey From a Model in NetLogo to a Game in Unity 

      Szczepanska, Timo; Angourakis, Andreas; Graham, Shawn; Borit, Melania (Chapter; Bokkapittel, 2022)
      Combining Games and Agent-Based Models (ABMs) in a single research design (i.e. GAM design) shows potential for investigating complex past, present, or future social phenomena. Games offer engaging environments that can help generating insights into social dynamics, perceptions, and behaviours, while ABMs support the representation and analysis of complexity. We present here the first attempt to ...
    • Radiological detection of nephrocalcinosis in farmed Atlantic salmon Salmo salar L. 

      Klykken, Christine; Dalum, Alf Seljenes; Reed, Anne Katrine; Attramadal, Kari; Olsen, Rolf Erik; Boissonnot, Lauris Jeannine Ernestine (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-14)
      Nephrocalcinosis is a common disorder in nurseries in Norway (Klykken, Reed, et al., 2022) and was reported as one of the main welfare challenges in farmed salmon by The Norwegian Fish Health Report of 2019 (Sommerset et al., 2020). Nephrocalcinosis is described as deposits of minerals within the kidneys (Bruno, 1996), that can disturb kidney function, which in turn can have dramatic consequences ...
    • Ranking of substances for monitoring in foods, drinks and dietary supplements - based on risk and knowledge gaps 

      Steffensen, Inger-Lise; Fæste, Christiane Kruse; Husøy, Trine; Knutsen, Helle Katrine; Mathisen, Gro Haarklou; Ørnsrud, Robin; Agdestein, Angelika; Bodin, Johanna Eva; Elvevoll, Edel O.; Hessen, Dag Olav; Hofshagen, Merete; Krogdahl, Åshild; Nilsen, Asbjørn Magne; Rafoss, Trond; Skjerdal, Olaug Taran; Velle, Gaute; Wasteson, Yngvild; Hemre, Gro Ingunn; Vandvik, Vigdis; Alexander, Jan (Research report; Forskningsrapport, 2019)
      The Norwegian Food Safety Authority (NFSA) requested the Norwegian Scientific Committee for Food and Environment (VKM) to provide an overview of substances in foods, drinks and dietary supplements that may constitute a potential health risk for humans, based on the VKM members’ expert judgements. VKM was further requested to perform a ranking of these substances. Additionally, VKM should ...
    • RAT-RS: a reporting standard for improving the documentation of data use in agent-based modelling 

      Achter, Sebastian; Borit, Melania; Chattoe-Brown, Edmund; Siebers, Peer-Olaf (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-30)
      This article describes and justifies a reporting standard to improve data use documentation in Agent-Based Modelling. Following the development of reporting standards for models themselves, empirical modelling has now developed to the point where these standards need to take equally effective account of data use (which previously has tended to be an afterthought to model description). It is ...
    • Rebuilding the Northeast Arctic Cod Fisheries - Economic and Social Issues 

      Armstrong, Claire W.; Eide, Arne; Flaaten, Ola; Heen, Knut; Kaspersen, Inga Wigdahl (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
      The Northeast Arctic cod (NEA cod) fisheries in Norway are now one of the richest cod fisheries in the world. In the past the fishery has experienced several stock declines and low economic returns. In this paper we review management approaches applied over 20 years to address one of the most severe crises in the fishery. Emphasis is on management strategies and the measures carried out to ensure ...
    • Recent progress in marine mycological research in different countries, and prospects for future developments worldwide 

      Pang, Ka-Lai; Jones, E. B. Gareth; Abdel-Wahab, Mohamed A.; Adams, Sarah J.; Alves, Artur; Azevedo, Egídia; Bahkali, Ali H.; Barata, Margarida; Burgaud, Gaëtan; Fryar, Sally C.; González, Maria C.; Jin, Jing; Mehiri, Mohamed; Meslet-Cladiére, Laurence; Prado, Soizic; Rämä, Teppo; Reich, Marlis; Roullier, Catherine; Sarma, Vemuri Venkateswara; Tibell, Leif; Tibell, Sanja; Velez, Patricia; Walker, Allison K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-27)
      Early research on marine fungi was mostly descriptive, with an emphasis on their diversity and taxonomy, especially of those collected at rocky shores on seaweeds and driftwood. Subsequently, further substrata (e.g. salt marsh grasses, marine animals, seagrasses, sea foam, seawater, sediment) and habitats (coral reefs, deep-sea, hydrothermal vents, mangroves, sandy beaches, salt marshes) were explored ...
    • Recent warming causes functional borealization and diversity loss in deep fish communities east of Greenland 

      Emblemsvåg, Margrete; Pecuchet, Laurene; Velle, Liv Guri; Nogueira, Adriana; Primicerio, Raul (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-13)
      Aim: We assessed temporal trends in functional diversity of the deep-sea demersal fish communities of East Greenland to characterize ecological responses to rising sea temperatures.<p> <p>Location: The study region encompasses a shelf and slope area located offshore between 63°N and 66°N, east of Greenland. <p>Methods: A unique dataset of demersal fish abundance covering a depth range of 1500 m ...
    • Reconciling ecological and engineering design principles for building microbiomes 

      Bernstein, Hans Christopher (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-28)
      Simplified microbial communities, or “benchtop microbiomes,” enable us to manage the profound complexity of microbial ecosystems. Widespread activities aiming to design and control communities result in novel resources for testing ecological theories and also for realizing new biotechnologies. There is much to be gained by reconciling engineering design principles with ecological processes that shape ...
    • Reconstructing governability: How fisheries are made governable 

      Song, Andrew M.; Johnsen, Jahn Petter; Morrison, Tiffany (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-12-15)
      Governability is an important concept in the political and environmental social sciences with increasing application to socio‐ecological systems such as fisheries. Indeed, governability analyses of fisheries and related systems such as marine‐protected areas have generated innovative ways to implement sustainability ideals. Yet, despite progress made, we argue that there remain limitations in current ...
    • Recovery from exhaustive swimming and its effect on fillet quality in haddock (Melanogrammus aeglefinus) 

      Karlsson-Drangsholt, Anders; Svalheim, Ragnhild Aven; Aas-Hansen, Øyvind; Olsen, Stein Harris; Midling, Kjell Øivind; Breen, Michael; Grimsbø, Endre; Johnsen, Helge K. (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-08)
      Wild haddock (<i>Melanogrammus aeglefinus</i>) of commercial size (0.8–2.49 kg, 45–60 cm) were swum to exhaustion in a large swim tunnel and then allowed to recuperate for 0, 3 or 6 h, to investigate the effects of exhaustive swimming on blood glucose, blood lactate and post mortem development of fillet quality. There was a positive linear relationship between critical (aerobic) swimming speed ...
    • Recruitment to the Norwegian fishing fleet: storylines, paradoxes, and pragmatism in Norwegian fisheries and recruitment policy 

      Sønvisen, Signe Annie (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      The majority of actors in the Norwegian fisheries consider recruitment of fishers to be the main future challenge for the Norwegian fishing fleet. As fleet recruitment is a highly politicized field, the problem of how to mitigate the recruitment problem is a subject of heavy debate. Some argue that recruitment problems are caused by low fleet profitability, while others argue that recruitment ...
    • Redisposition of acremonium-like fungi in Hypocreales 

      Hou, Lingwei; Giraldo, Alejandra; Groenewald, Johannes Zacharias Ewald; Rämä, Teppo; Summerbell, R.C.; Huang, G.Z.; Cai, Lei; Crous, Pedro Willem (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-06-02)
      Acremonium is acknowledged as a highly ubiquitous genus including saprobic, parasitic, or endophytic fungi that inhabit a variety of environments. Species of this genus are extensively exploited in industrial, commercial, pharmaceutical, and biocontrol applications, and proved to be a rich source of novel and bioactive secondary metabolites. Acremonium has been recognised as a taxonomically difficult ...
    • Reducing catch efficiency of rabbitfish (Siganus oramin) in a shrimp beam trawl fishery of the South China Sea 

      Yang, Bingzhong; Herrmann, Bent; Cheng, Zhaohai (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-07)
      The bycatch of unwanted fish species is a main concern in shrimp beam trawl fishery of the South China Sea. This study evaluated the effect of using combined square-mesh and diamond-mesh codends (CSDM codends) on catch efficiency of a shrimp trawl fishery with the catch comparison and catch ratio approach. The trouser trawl method was applied using the commercial 22-mm diamond mesh codend (D22) as ...