Blar i Department of Biological Sciences på forfatter "Penglase, Samuel"

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    • Diet affects the redox system in developing Atlantic cod(Gadus morhua) larvae 

      Penglase, Samuel; Edvardsen, Rolf; Furmanek, Tomasz; Rønnestad, Ivar; Karlsen, Ørjan; van der Meeren, Terje; Hamre, Kristin (Peer reviewed; Journal article, 2015-08)
      The growth and development of marine fish larvae fed copepods is superior to those fed rotifers, but the underlying molecular reasons for this are unclear. In the following study we compared the effects of such diets on ...

    • The effects of selenium on methylmercury toxicity in zebrafish 

      Penglase, Samuel (Doctoral thesis, 2014-10-31)
      Methylmercury (MeHg) is a potent neurotoxicant that remains a global concern. Selenium (Se) is an important micronutrient which is able to decrease MeHg toxicity, although the underlying mechanisms for this protection ...

    • Increasing the levels of the essential trace elements Se, Zn, Cu and Mn in rotifers (Brachionus plicatilis) used as live feed 

      Nordgreen, Andreas Hoel; Penglase, Samuel; Hamre, Kristin (Peer reviewed; Journal article, 2013-03-04)
      Rotifers are a common first feeding diet for rearing marine fish larvae. However, the levels of Mn, Cu, Zn, Se and iodine found in rotifers are low and may be insufficient to meet larval fish requirements. This study ...

    • Iodine nutrition and toxicity in Atlantic cod (Gadus morhua) larvae 

      Penglase, Samuel; Harboe, Torstein; Sæle, Øystein; Helland, Synnøve; Nordgreen, Andreas Hoel; Hamre, Kristin (Peer reviewed; Journal article, 2013-02-19)
      Copepods as feed promote better growth and development in marine fish larvae than rotifers. However, unlike rotifers, copepods contain several minerals such as iodine (I), at potentially toxic levels. Iodine is an essential ...

    • Redox regulation in Atlantic cod (Gadus morhua) embryos developing under normal and heat-stressed conditions 

      Skjærven, Kaja Helvik; Penglase, Samuel; Olsvik, Pål Asgeir; Hamre, Kristin (Peer reviewed; Journal article, 2013-04)
      With regard to predicted oceanic warming, we studied the effects of heat stress on the redox system during embryonic development of Atlantic cod (Gadus morhua), with emphasis on the glutathione balance, activities of key ...

    • The selenium content of SEPP1 versus selenium requirements in vertebrates 

      Penglase, Samuel; Hamre, Kristin; Ellingsen, Ståle (Peer reviewed; Journal article, 2015-09-10)
      Selenoprotein P (SEPP1) distributes selenium (Se) throughout the body via the circulatory system. For vertebrates, the Se content of SEPP1 varies from 7 to 18 Se atoms depending on the species, but the reason for this ...