Blar i Institutt for biologi på emneord "MSMACODEV Marine Coastal Development"
Viser treff 1-20 av 25
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Cold storage of eggs of Acartia tonsa Dana: effects of light, salinity and short-term temperature elevation on 48-h egg hatching success
(Master thesis, 2011)Copepods play a key role in the marine ecosystem where they form a vital trophodynamic link between primary and tertiary producers, and are the dominant prey of many marine fishes during their larval stage. Because of their ... -
Conservation and sustainable use of wild sturgeon populations of the NW Black Sea and Lower Danube River in Romania
(Master thesis, 2011)Sturgeons belong to one of the oldest families of bony fish in existence, having their first appearance in the fossil records approximately 200 million years ago. Their natural habitats are found in the subtropical, ... -
Conservation of genetic diversity in populations of stellate sturgeon (Acipenser stellatus) of the NW Black Sea and Lower Danube River
(Master thesis, 2011)The stellate sturgeons as well as the other sturgeon populations inhabiting the Lower Danube River system (LDR) and the NW part of the Black Sea have experienced a severe decline due to heavy fishery, river regulation and ... -
Development of biofouling on salmon cage nets and the effects of anti-fouling treatments on the survival of the hydroid (Ectopleura larynx) (Ellis & Solander, 1786)
(Master thesis, 2012)Biofouling has become a serious problem for farmers in the Norwegian finfish aquaculture industry in recent years; with the hydroid Ectopleura larynx dominating the fouling community in southwestern and mid-Norwegian waters. ... -
Dietary effects of different live prey on growth and functional development in ballan wrasse (Labrus bergylta) larvae and juveniles
(Master thesis, 2012)Ballan wrasse (Labrus bergylta) is a new species in aquaculture, the newly initiated intensive production is a response to the increasing demands for wrasse as cleaner fish in salmon and trout farming. The dietary requirements ... -
Effects of feeding with copepod nauplii (Acartia tonsa) compared to rotifers (Brachionus ibericus, Cayman) on quality parameters in Atlantic cod (Gadus morhua) larvae
(Master thesis, 2011)Good nutritional quality is a key for a successful Atlantic cod (Gadus morhua) juvenile producer. Copepods are the natural prey for marine fish larvae, and its nutritional composition is believed to be optimal for the ... -
Effects of live feed quality on cod (Gadus morhua L.) larval hepatocyte and enterocyte development
(Master thesis, 2011)Production of high quality juveniles is still a bottleneck in the intensive culture of cod (Gadus morhua L.), and suboptimal nutrition at the larvae s early life stages is one of the decisive factors for this. The cod larva ... -
Effects of live feed quality on cod (Gadus morhua L.) larval muscle growth and development: .
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Effects of Nest Spacing on Nest Occupation, Mating Success and Mating Behaviour in the Two-spotted Goby (Gobiusculus flavescens)
(Master thesis, 2011)I investigated hoe different spacing of breeding sited affects different aspects of mating behaviour in the two-spotted goby. I found that clumped nest spacing affects nest occupations and reproductive success negatively. ... -
Effects of nutrients from fish farms on culture of blue mussel (Mytilus edulis)
(Master thesis, 2011)Intensive salmonid cage culture releases nutrients and organic matter that lead eutrophication of coastal waters. Integrated multi-trophic aquaculture (IMTA) is receiving great attention as a means of reducing organic/inorganic ... -
Gastropods Associated with Laminaria hyperborea and Saccorhiza polyschides in a Norwegian Kelp Forest: Comparison of Sampling and In Situ Imaging Techniques
(Master thesis, 2011)The snail fauna (class Gastropoda) associated with the two kelp species Laminaria hyperborea and Saccorhiza polyschides was sampled during September and December 2009, and March 2011. Over 1000 gastropod individuals ... -
How Photosynthesis in Laminaria digitata and Saccharina latissima is Affected by Water Temperature
(Master thesis, 2011)The aim of this thesis is to give insight into how a short term exposure to higher water temperatures affect photosynthesis in two of the most important species of the Norwegian kelp forest; Laminaria digitata and Saccharina ... -
Lipid Composition in Antarctic krill, Euphausia superba
(Master thesis, 2011)Small variations in the lipid composition was found in Antarctic krill ranging from 3.0-5.5 cm. No differences were founf in lipid composition between malea and female Antarctic krill. There were some differences in lipid ... -
Seasonal Variations in Biofouling and Plankton Community Connected to a Large Scale Salmon Farm.
(Master thesis, 2011)Biofouling is the one of the main problems in marine finfish aquaculture. Biofouling occludes the nets and incurs major costs to fish farmers in the form of copper containing anti fouling paints used on the net surfaces, ... -
Sori disinfection in cultivation of Saccharina latissima: Evaluation of chemical treatments against diatom contamination
(Master thesis, 2012)Diatom contamination is a problem in the early cultivation stages of Saccharina latissima. Macro- and microalgae compete for the same abiotic resources, and diatoms may overgrow and eliminate seedlings of S. latissima if ... -
Spatial and temporal distribution and habitat use of sea trout Salmo trutta in a fjord system in Central Norway: - influence of morphology and life history on marine behaviour
(Master thesis, 2014)Marine migration and habitat use of sea trout Salmo trutta from the watercourse Søa and the river Snilldalselva in Sør-Trøndelag in Central Norway was studied during summer in 2012 and 2013. Fishes were tagged with acoustic ... -
The effect of different live feed on the early growth and development of ballan wrasse (Labrus bergylta Ascanius, 1767) larvae and its organs
(Master thesis, 2012)Salmon lice (Lepeophtheirus salmonis) have been an increasing problem for the Norwegian aquaculture industry in recent years, and several chemicals have been used by the industry to get rid of the louse. However, resistance ... -
The effect of different live prey types on growth and muscle development, in ballan wrasse (Labrus bergylta, Ascanius 1767) larvae
(Master thesis, 2012)Sea lice have been causing problems in Norwegian salmon farming industry for decades; increasing mortality and reducing the welfare of farmed and wild fish. Various chemical agents have been used to combat sea lice, but ... -
The effect of incubation temperature on embryonic development and muscle growth in yolk-sac larvae of the European eel (Anguilla anguilla L., 1758)
(Master thesis, 2012)Reproduction of European eel (Anguilla anguilla) in aquaculture systems has become a focus research area due to severe decline of natural stocks, and increasing interest to breed eels for a self-sustained aquaculture. ...