Now showing items 161-170 of 541
Age determination of Atlantic halibut (Hippoglossus hippoglossus L.) - Size at age and regional growth differences along the coast of Norway
(The University of Bergen, 2011-05-25)
The traditional method for estimating age of Atlantic halibut (Hippoglossus hippoglossus) is through surface readings. Previous studies have not been compared to find the best practice for surface reading techniques. Based ...
Pathways of Carbon Assimilation and Ammonia Oxidation Suggested by Environmental Genomic Analyses of Marine Crenarchaeota
(Public Library of Science, 2006-03-21)
Marine Crenarchaeota represent an abundant component of oceanic microbiota with potential to significantly influence biogeochemical cycling in marine ecosystems. Prior studies using specific archaeal lipid biomarkers and ...
Redescription of Protoopalina pingi Nie, 1935 inhabiting the recta of Hylarana guentheri and Pelophylax nigromaculatus in China
(EDP Sciences, 2014-09-12)
A redescription of Protoopalina pingi Nie, 1935 is presented in this paper to complete Nie’s description at both light and scanning electron microscope levels. These organisms were collected from the recta of the frogs ...
The effects of cyanobacteria on the growth, survival and behaviour of a tropical fish (Nile tilapia) and zooplankton (Daphnia lumholtzi)
(The University of Bergen, 2009-10-30)
Recent studies on the ecological effects of cyanobacteria in lakes have focused on the harmful effects of blooms to other aquatic organisms including fish and zooplankton. Much of this work has been conducted on temperate ...
Replacing fish oil by vegetable oil in a low fish protein diet: effects on visceral adipose tissue and inflammation in Atlantic salmon
(The University of Bergen, 2012-06-04)
Dietary fish oil (FO) replacement with vegetable oils in combination with high dietary fish meal replacement have previously been shown to increase Atlantic salmon plasma and liver TAG as well as visceral fat deposition. ...
Open water zooplankton communities in North African wetland lakes: the CASSARINA Project
Zooplankton (Copepoda, Cladocera, Ostracoda, Rotifera and Diptera larvae) in nine North African lakes was collected from open water areas over twenty months during 1997/99. The results were used to monitor changes in the ...
Thermal stratification influences maturation and timing of spawning in a local Clupea harengus population
(John Wiley & Sons, Inc., 2013)
Geomicrobial characterisation of a 60 m long permafrost core, taken over a future CO2 storage site at Svalbard
(The University of Bergen, 2014-09-11)
In connection with a planned CO2 storage pilot project in the Arctic, a 60 m long permafrost core was drilled in Adventdalen, Svalbard, representing the poorly studied deep permafrost ecosystems. The on-shore drilling was ...
Molecular characterisation of the salmon louse, Lepeophtheirus salmonis salmonis (Krøyer, 1837), ecdysone receptor with emphasis on functional studies of female reproduction
The salmon louse Lepeophtheirus salmonis (Copepoda, Caligidae) is an important parasite in the salmon farming industry in the Northern Hemisphere causing annual losses of hundreds of millions of dollars (US) worldwide. To ...
Interactions of arginine and polyamines on growth and metabolism in Atlantic salmon
(The University of Bergen, 2014-10-09)
Arginine and methionine are indispensable amino acids (AA) for Atlantic salmon, meaning that salmon is unable to produce these AA endogenously and is fully dependent on dietary supply. In addition to be substrates for ...