Browsing Institutt for biologi by Title
Now showing items 2427-2446 of 2596
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Thyroid hormone disruptive effects of environmental contaminants in free-ranging brown trout (Salmo trutta) from lake Mjøsa, Norway
(Master thesis, 2011)VBrown trout (Salmo trutta) from Lake Mjøsa, Norway, contain very high levels of polybrominated diphenyl ethers (PBDEs), in addition to elevated levels of other persistent organic pollutants (POPs) and trace metals, including ... -
Thyroid hormone status and thyroid gland histology in PFAS- and mercury contaminated glaucous gulls (Larus hyperboreus) from Svalbard
(Master thesis, 2018)The glaucous gull (Larus hyperboreus) is a scavenger and top predator in the Arctic marine food web. Due to its high trophic position, it is highly exposed to organohalogenated compounds (OHCs) and metals originating from ... -
Thyroid hormones correlate with basal metabolic rate but not field metabolic rate in a wild bird species
(Journal article; Peer reviewed, 2013)Thyroid hormones (TH) are known to stimulate in vitro oxygen consumption of tissues in mammals and birds. Hence, in many laboratory studies a positive relationship between TH concentrations and basal metabolic rate (BMR) ... -
Tilrettelegging for dyrking av butare i Trøndelag.
(Research report, 2014)Butare Alaria esculenta er en av de store tareartene som vokser langs Trøndelagskysten og som er attraktiv å begynne å dyrke med tanke på anvendelse til flere ulike produkter. Den vokser raskt, produserer mye biomasse og ... -
Tiltak for reduksjon av termisk stress og økt arbeidskomfort hos smelteverksarbeidere - Et felt- og laboratoriestudie
(Master thesis, 2017)Masteravhandlingen vil bli skrevet i forbindelse med SINTEF Teknologi og samfunn, avdeling Helse sitt prosjekt Fremtidens vernebekledning for smelteverksarbeidere og skal utvikle et kunnskapsgrunnlag for test og utvikling ... -
Time kinetics of fatty acids changes in total lipids and phospholipids of A. franciscana following enrichment and starvation, with a main focus on docosahexaenoic acid (DHA)
(Master thesis, 2013)HUFA in PL has been considered to be easily digested by marine fish larvae, which will result in better growth, survival and development (e.g., pigmentation, stress resistance and gut maturation). As one of the most commonly ... -
Time since divergence between the blue whiting sister species Micromesistius poutassou and M. australis
(Master thesis, 2010)The Micromesistius genus consists of two commercially important species, M. poutassou found in the Northern Hemisphere and M. australis in the Southern Hemisphere. Genetic variation between and within the species was ... -
Time-series of Phytoplankton Photosynthesis and Dynamics using PHYTO-PAM and Autonomous Underwater Vehicle
(Master thesis, 2011)This MSc thesis comprises PHYTO-PAM measurements of phytoplankton photosynthesis, measured as electron transfer rates in order to study photosynthetic dynamics. Time-series of photosynthesis from two phytoplankton bloom ... -
Timing is everything: Survival of Atlantic salmon Salmo salar postsmolts during events of high salmon lice densities
(Peer reviewed; Journal article, 2020)Atlantic salmon in aquaculture act as reservoir hosts and vectors of parasites like salmon lice and this parasite is shown to harm wild salmonid populations. In this study, n = 29,817 tagged Atlantic salmon were studied ... -
Timing of homing migration of anadromous brown trout, Arctic char and Atlantic salmon in two rivers in Northern Norway.
(Master thesis, 2021)Brunørret (Salmo trutta), Arktisk røye (Salvelinus alpinus) og Atlanterhavslaks (S. salar) kan begi seg ut på marine næringsmigrasjoner. Men, tiden de bruker i havet og tidspunktet for tilbakevandring til elva varierer ... -
To Adapt or Not Adapt: Assessing the Adaptive Capacity of Artisanal Fishers in the Trondheimsfjord (Norway) to Jellyfish (Periphylla periphylla) Bloom and Purse Seiners
(Journal article; Peer reviewed, 2015)Worldwide increases of jellyfish has occurred during the last several decades. A dense population of a large scyphozoan jellyfish, Periphylla periphylla, has established itself as top predator in the Trondheimsfjord in ... -
Toleranse og adferdsresponser hos skotteluslarver (Caligus elongatus) ved eksponering for ulike saliniteter
(Master thesis, 2024)Caligus elongatus, også kjent som skottelus, har blitt rapportert som et økende velferdsproblem i norsk oppdrett de siste årene. Mange oppdrettslokaliteter er lokalisert der saliniteten i det øvre vannlaget varierer, og ... -
Too Much of a Good Thing: Photoprotection in Boreal Conifers During Winter
(Master thesis, 2013)Photochemical utilization of light energy is inhibited in boreal conifers during winter and spring because the carbon fixation reactions slow down due to low temperature. Incoming light can be very strong due to reflection ... -
Topographic complexity and biotic resilience to climate change
(Master thesis, 2013)Topographically complex alpine terrains create a mosaic of diverse microclimates over short distances. This study investigated the extent of small-scale variation in temperature and soil moisture using dense arrays of ... -
Topographic complexity and biotic resilience to climate change
(Master thesis, 2013)Topographically complex alpine terrains create a mosaic of diverse microclimates over short distances. This study investigated the extent of small-scale variation in temperature and soil moisture using dense arrays of ... -
Topsoil restoration of three construction sites in central Norway: Comparing restoration outcome by species composition and soil characteristics in relation to three reference communities
(Master thesis, 2023)Økologisk restaurering er et verktøy som kan brukes til å lette det uunngåelige presset som bygging av infrastruktur medfører på vårt landskap og natur. I denne studien gjennomførte jeg en analyse av artssammensetning og ... -
Torpor arousal rates in northern bats (Eptesicus nilssonii)
(Master thesis, 2022)Endoterme dyr holder ofte kroppstemperaturen sin høy og stabil i møte med mange miljøbetingelser, noe som krever mye energi. For å unngå energiutfordringene bruker mange pattedyr torpor, en prosess hvor kroppstemperatur, ... -
Total triiodothyronine and glucocorticoid metabolite levels in faecal samples are independent of colour morph in the Arctic fox (Vulpes lagopus)
(Master thesis, 2023)Arktiske dyr har ofte fysiologiske tilpasninger som muliggjør at de kan håndtere både ekstreme og varierende miljøforhold gjennom året. Det har blitt foreslått at fenotype for pelsfarge kan være basisen for de miljøforholdene ... -
Toward adaptive robotic sampling of phytoplankton in the coastal ocean
(Journal article; Peer reviewed, 2019)Currents, wind, bathymetry, and freshwater runoff are some of the factors that make coastal waters heterogeneous, patchy, and scientifically interesting—where it is challenging to resolve the spatiotemporal variation within ... -
Towards a circular phosphorus economy in Norway - Strategies for integrating agriculture and aquaculture at multiple scales
(Research report, 2023)Phosphorus is a building block for all life and therefore plays an essential role in food production. Currently, large amounts of phosphorus enter the Norwegian food system from abroad in the form of mineral fertilizer, ...