Blar i Institutt for biologi på tittel
Viser treff 1942-1961 av 2504
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Saccharina latissima, effekt av utskiftningsintervall av medium for vegetative gametofytter og utsåingstetthet på vekst, samt stresstester av kimplanter.
(Master thesis, 2016)Norge er et land som har et stort potensiale for å drive tareoppdrett med sin langstrakte kystlinje. For at denne næringen skal bli konkurransedyktig, må næringen gjøres kostnadseffektiv. For økt produksjon av kimplanter ... -
Safe, selfish state-independent mobbing behaviour in the cooperatively breeding apostlebird (Struthidea cinerea)
(Master thesis, 2011)In the last few decades stochastic dynamic modeling (SDM) has been used to explore adaptive state-dependent strategies in a whole host of different theoretical problems in behavioural ecology, with considerable success. ... -
Salmon louse infestation in wild brown trout populations generates multi-modal mixture distributions
(Peer reviewed; Journal article, 2020)For successful evaluation of the overall effects of salmon louse infestation on brown trout population dynamics, it is crucial to have a realistic understanding of how lice infestation distributions are generated and how ... -
Salmonid fishes in a changing climate : the winter challenge
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:199, Doctoral thesis, 2005)In the present thesis, winter mortality was linked to levels of stored energy by a field study from a northern Atlantic salmon population where population frequency distributions for specific somatic energy were compared ... -
Sammenligning av agnede stereo video-rigger med fisketeiner langs kysten av Frøya og Hitra
(Master thesis, 2019)Verdenshavene blir påvirket av menneskeskapte påvirkninger fra klimaendringer, overfiske, turisme, skipsfartsindustri, olje og gass, og det har derfor aldri før vært viktigere med marin bevaring. Med medvirkning fra ... -
Sammenligning av embryoutvikling for rognkjeks (Cyclopterus lumpus) stamfisk og villfisk
(Master thesis, 2020)Med ambisjon om å femdoble norsk lakseproduksjon, står fiskenæringen og staten foran utfordringer knyttet til høyt smittepress av lakselus. Per i dag er utsetting av rensefisk i merder den mest brukte metoden for bekjempelse ... -
Sammenlikning av mekanisk og termisk avlusing: Klekkesuksess og larveutvikling fra eggstrenger med vurdering av smittepotensial hos lakselus (Lepeophtheirus salmonis)
(Master thesis, 2022)Norsk lakseoppdrett har hatt en god økonomisk og produksjonsmessig vekst siden 2000-tallet. De siste årene har produksjonen likevel stagnert på grunn av utfordringer med lakselus (Lepeophtheirus salmonis Krøyer, 1837). ... -
Savannah trees buffer herbaceous plant biomass against wild and domestic herbivores
(Journal article; Peer reviewed, 2019)Questions Given the growing abundance and dominance of domestic herbivores in savannah ecosystems, can trees maintain plant herbaceous standing biomass under increasing herbivore pressure? Are there differences in the ... -
Scavenger community structure along an environmental gradient from boreal forest to alpine tundra in Scandinavia
(Journal article; Peer reviewed, 2020)Scavengers can have strong impacts on food webs, and awareness of their role in ecosystems has increased during the last decades. In our study, we used baited camera traps to quantify the structure of the winter scavenger ... -
Scenariofremstilling: inntak av dioksiner og PCB fra krabbe. Uttalelse fra Faggruppen for forurensninger, naturlige toksiner og medisinrester i matkjeden
(VKM Report;, Research report, 2010)Det er fastsatt øvre grenseverdier for dioksiner og dioksinliknende (dl) PCB i næringsmidler inkludert hvitt krabbekjøtt, men ikke i brun krabbemat. I tilknytning til sterkt forurensede områder langs kysten har Mattilsynet ... -
A schematic sampling protocol for contaminant monitoring in raptors
(Peer reviewed; Journal article, 2020)Birds of prey, owls and falcons are widely used as sentinel species in raptor biomonitoring programmes. A major current challenge is to facilitate large-scale biomonitoring by coordinating contaminant monitoring activities ... -
Schoolchildren as informants about bushmeat consumption in Western Serengeti
(Journal article; Peer reviewed, 2019)Bushmeat contributes to household food security in Western Serengeti, particularly for low-income families who are unable to afford more expensive meat sources. However, as the human population grows, bushmeat demand is ... -
Scientific knowledge in the age of computation: Explicated, computable and manageable?
(Journal article; Peer reviewed, 2019)With increasing publication and data production, scientific knowledge stands not simply as an achievement but also as a challenge. Scientific publications and data are increasingly treated as resources that need to be ... -
Screening new PFAS compounds 2018
(NILU rapport;, Research report, 2019)This screening project has focused on the occurrence of conventional andemerging PFASs in terrestrial and marine environments, including the Arctic. Conventional PFASs were found to be wide-spread in the environment and ... -
Sea ice loss increases genetic isolation in a high Arctic ungulate metapopulation
(Peer reviewed; Journal article, 2019)Sea ice loss may have dramatic consequences for population connectivity, extinction–colonization dynamics, and even the persistence of Arctic species subject to climate change. This is of particular concern in face of ... -
Sea ice thermohaline dynamics and biogeochemistry in the Arctic Ocean: Empirical and model results
(Journal article; Peer reviewed, 2017)Large changes in the sea ice regime of the Arctic Ocean have occurred over the last decades justifying the development of models to forecast sea ice physics and biogeochemistry. The main goal of this study is to evaluate ... -
Sea lice (Lepeophtheirus salmonis and Caligus elongatus) during freshwater treatment
(Master thesis, 2019)Siden begynnelsen på 1960-tallet, har lus vært et problem for fiskevelferden for akvakultur næringen i Norge. Lusen har en større økonomisk påvirkning enn noen annen parasitt, og Lepeophteirus salmonis har blitt indentifisert ... -
Sea or summit? Wild reindeer spatial responses to changing high-arctic winters
(Peer reviewed; Journal article, 2021)Because of climate change, wildlife is facing altered environments, including profound shifts in temperature and precipitation regimes. In snow-dominated ecosystems, winter warming and resulting changes in snowpack properties ... -
Seabird Migration Strategies: Flight Budgets, Diel Activity Patterns, and Lunar Influence
(Peer reviewed; Journal article, 2021)Every year, billions of birds undertake extensive migrations between breeding and non-breeding areas, facing challenges that require behavioural adjustments, particularly to flight timing and duration. Such adjustments in ... -
Seabirds as guides for fisheries management: European shag Phalacrocorax aristotelis diet as indicator of saithe Pollachius virens recruitment
(Journal article; Peer reviewed, 2018)In fisheries management, assessing year-class strength and recruitment to commercial stocks is essential, but can be difficult to do for fish species where the young stages are inaccessible to ship-based surveys. This is ...