• The Backward-Bending Supply Curve in Fisheries-Revisited 

      Pham, Thanh Thuy; Flaaten, Ola (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      This study discusses and estimates the backward-bending supply curve, using data for three years over a six-year time span from the inshore purse seine fishery in Khanh Hoa province, Vietnam. Four different models are developed for estimation based on fisheries data, in the absence of stock survey data. The estimated maximum sustainable yield for the anchovy in south-central Vietnam ranges from ...
    • Bacterial Diversity in the Digestive Tracts of Four Indian Air-Breathing Fish Species Investigated by PCR Based Denaturing Gradient Gel Electrophoresis 

      He, Suxu; Zhou, Zhigang; Banerjee, Goutam; Huang, Lu; Ray, Arun Kumar; Ringø, Einar (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-12-02)
      An investigation was conducted to identify the allochthonous microbiota (entire intestine) and the autochthonous microbiota in proximal intestine (PI) and distal intestine (DI) of four species of Indian air-breathing fish (climbing perch; Anabas testudineus, murrel; Channa punctatus, walking catfish; Clarias batrachus and stinging catfish; Heteropneustes fossilis) by PCR based denaturing gradient ...
    • Behov for Statfisk? 

      Trondsen, Torbjørn (Chronicle; Kronikk, 2016-09-15)
    • Bioactivity Screening of Microalgae for Antioxidant, Anti-Inflammatory, Anticancer, Anti-Diabetes, and Antibacterial Activities 

      Lauritano, Chiara; Andersen, Jeanette hammer; Hansen, Espen; Albrigtsen, Marte; Escalera, Laura; Esposito, Francesco; Helland, Kirsti; Østnes Hanssen, Kine; Romano, Giovanna; Ianora, Adrianna (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-10)
      Marine microalgae are considered a potentially new and valuable source of biologically active molecules for applications in the food industry as well as in the pharmaceutical, nutraceutical, and cosmetic sectors. They can be easily cultured, have short generation times and enable an environmentally-friendly approach to drug discovery by overcoming problems associated with the over-utilization ...
    • A bioeconomic MPA study based on cellular automata population growth and distribution 

      Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      This paper investigates possible biological and economic effects of using marine sanctuaries as a management tool, employing cellular automata techniques to model biological growth and area distribution, assuming open access to the fish stock resources outside the protected area. The cellular automata model incorporates a fish harvest model based on standard assumptions. In agreement with previous ...
    • Bioeconomics of Commercial Marine Fisheries of Bay of Bengal: Status and Direction 

      Habib, Ahasan; Ullah, Md Hadayet; Nguyen, Ngoc Duy (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    • Bomkast om privatisering av havet 

      Johnsen, Jahn Petter (Journal article; Tidsskriftartikkel, 2014)
      Anmeldelse av Henning Røed, "Fiskehistorier" Forlaget Manifest, 2013
    • Broadening the horizon of size selectivity in trawl gears 

      Stepputtis, Daniel; Herrmann, Bent; Mieske, Bernd; Santos, Juan (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-12)
      The discussion of alternative harvest patterns in commercial fisheries has been raised by stock assessment and fishery modelers, especially in the wider context of balanced harvesting. But often, these theoretical approaches propose alternative exploitation patterns that are difficult to achieve within the current limitations in the selectivity characteristics of fishing gears, such as trawl gears. ...
    • Building fisheries institutions through collective action in Norway 

      Jentoft, Svein; Finstad, Bjørn-Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-16)
      Institutions, and the collective action that created them and which they enable, can play an important role in poverty eradication. In Norway, the Raw Fish Act passed in 1938 in the aftermath of the international financial crisis that hit the fishing industry hard, and the fishers’ cooperative sales-organizations that it authorized testify to this. Most of all, they helped to empower fishers in their ...
    • Carbon, Nitrogen and Sulphur isotopic fractionation in captive juvenile hooded seal (Cystophora cristata): application for diet analysis 

      Pinzone, Marianna; Acquarone, Mario; Huyghebaert, Loreen; Sturaro, Nicolas; Michel, Loïc N.; Siebert, Ursula; Das, Krishna (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-08-15)
      <p><i>Rationale</i>: Intrinsic biogeochemical markers, such as stable isotope ratios of carbon, nitrogen and sulphur, are increasingly used to trace the trophic ecology of marine top predators. However, insufficient knowledge of fractionation processes in tissues continues to hamper the use of these markers.</p> <p><i>Methods</i>: We performed a controlled feeding experiment with eight juvenile ...
    • Causes and consequences of fleet diversity in fisheries: The case of the Norwegian Barents Sea cod fishery 

      Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-05-25)
      Fisheries operate under fluctuating environmental conditions, targeting fish stocks that appear in varying densities in different areas, often with abrupt and unexpected local changes. Physical conditions, markets and management regulations constrain vessels in different and varying ways. These factors all contribute to forming the fleet diversity we find in most fisheries. Here, a simulation model ...
    • Cellular Antioxidant Effect of Four Bromophenols from the Red Algae, Vertebrata lanosa 

      Olsen, Elisabeth Klungerbo; Hansen, Espen; Isaksson, Johan; Andersen, Jeanette hammer (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Three known bromophenols, 2,3-dibromo-4,5-dihydroxybenzylaldehyde (1), 2,2′,3-tribromo-3′,4,4′,5-tetrahydroxy 6′-hydroxymethyldiphenylmethane (2) and bis(2, 3-dibromo-4,5-dihydroxylbenzyl) ether (3), and one new one, 5,5″-oxybis(methylene)bis (3-bromo-4-(2′,3′-dibromo-4′,5′-dihydroxylbenzyl)benzene-1,2-diol) (4), were isolated from an extract of the red alga, Vertebrata lanosa. The antioxidant ...
    • Change in Fish Community Structure in the Barents Sea 

      Aschan, Michaela; Fossheim, Maria; Greenacre, Michael; Primicerio, Raul (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      Change in oceanographic conditions causes structural alterations in marine fish communities, but this effect may go undetected as most monitoring programs until recently mainly have focused on oceanography and commercial species rather than on whole ecosystems. In this paper, the objective is to describe the spatial and temporal changes in the Barents Sea fish community in the period 1992–2004 while ...
    • Changes in softbottom macrofauna communities along environmental gradients 

      Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 1990-12-21)
    • Characterization of Rhamnolipids Produced by an Arctic Marine Bacterium from the Pseudomonas fluorescence Group 

      Kristoffersen, Venke; Rämä, Teppo; Isaksson, Johan; Andersen, Jeanette H.; Gerwick, William H.; Hansen, Espen (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-14)
      The marine environment is a rich source of biodiversity, including microorganisms that have proven to be prolific producers of bioactive secondary metabolites. Arctic seas are less explored than warmer, more accessible areas, providing a promising starting point to search for novel bioactive compounds. In the present work, an Arctic marine Pseudomonas sp. belonging to the Pseudomonas (P.) fluorescence ...
    • Characterization of the gut microbiome of hooded seals (Cystophora cristata) 

      Acquarone, Mario; Salgado, Alejandro Flores; Sundset, Monica Alterskjær (Conference object; Konferansebidrag, 2016-03-14)
    • Climate change alters the structure of arctic marine food webs due to poleward shifts of boreal generalists 

      Kortsch, Susanne; Primicerio, Raul; Fossheim, Maria; Dolgov, Andrey V.; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-09-02)
      Climate-driven poleward shifts, leading to changes in species composition and relative abundances, have been recently documented in the Arctic. Among the fastest moving species are boreal generalist fish which are expected to affect arctic marine food web structure and ecosystem functioning substantially. Here, we address structural changes at the food web level induced by poleward shifts via ...
    • Climate change, fisheries management and fishing aptitude affecting spatial and temporal distributions of the Barents Sea cod fishery 

      Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-10-26)
      Climate change is expected to influence spatial and temporal distributions of fish stocks. The aim of this paper is to compare climate change impact on a fishery with other factors impacting the performance of fishing fleets. The fishery in question is the Northeast Arctic cod fishery, a well-documented fishery where data on spatial and temporal distributions are available. A cellular automata ...
    • Climate-driven changes in functional biogeography of Arctic marine fish communities 

      Frainer, André; Primicerio, Raul; Kortsch, Susanne; Aune, Magnus; Dolgov, Andrey V.; Fossheim, Maria; Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-11-14)
      Climate change triggers poleward shifts in species distribution leading to changes in biogeography. In the marine environment, fish respond quickly to warming, causing community-wide reorganizations, which result in profound changes in ecosystem functioning. Functional biogeography provides a framework to address how ecosystem functioning may be affected by climate change over large spatial ...
    • Coincident mass occurrence of gelatinous zooplankton in Northern Norway 

      Knutsen, Tor; Hosia, Aino; Falkenhaug, Tone; Skern-Mauritzen, Rasmus; Wiebe, Peter H.; Larsen, Roger B.; Aglen, Asgeir (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-05-23)
      In autumn 2015, several sources reported observations of large amounts of gelatinous material in a large north Norwegian fjord system, either caught when trawling for other organisms or fouling fishing gear. The responsible organism was identified as a physonect siphonophore, Nanomia cara, while a ctenophore, Beroe cucumis, and a hydromedusa, Modeeria rotunda, were also registered in high abundances ...