Blar i Institutt for biologi på tittel
Viser treff 2538-2557 av 2612
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Use of probiotics in aquaculture of China—a review of the past decade
(Peer reviewed; Journal article, 2019)China is the largest aquaculture producer in the world. Antibiotics were extensively used to ensure the development of the intensive aquaculture; however, the use of antibiotics causes safety- and environment-associated ... -
Use of Pulse Amplitude Modulated (PAM) Fluorescence and Bio-optics for Assessing Microalgal Photosynthesis and Physiology
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:183, Doctoral thesis, 2011)This thesis puts emphasis on an evaluation of the Pulse Amplitude Modulated (PAM) fluorescence (that is, the in vivo variable Chl a fluorescence) as non-invasive means to estimate the oxygen evolution rate. The estimated ... -
Use of translocated topsoil to enhance native biodiversity in the urban landscape of NTNU Campus in Trondheim
(Master thesis, 2024)Restaurering av degraderte habitater ved bruk av naturbaserte løsninger er nødvendig for å redusere den negative påvirkningen menneskelig aktivitet har på naturen. En foretrukket metode ved veibygge prosjekter i Norge er ... -
Use of Wastewater from Recirculating Aquaculture System (RAS) for Cultivation of Microbial Biofilm Communities
(Master thesis, 2023)Den økende etterspørselen etter bærekraftig mat kan delvis løses ved produksjon av akvatiske arter i resirkulerende akvakultursystemer (RAS). I norsk havbruksnæring blir atlantisk laks (Salmo salar) ofte klekket og kultivert ... -
Use, selection, and home range properties: complex patterns of individual habitat utilization
(Journal article; Peer reviewed, 2019)Individual patterns of habitat use emerge from behavioral decisions driven by interactions between landscape characteristics and individual traits. Individual traits, such as age and sex, influence the net gain of using ... -
Using a low-cost high throughput microscope in cultivated seaweed farms for early biofouling detection
(Master thesis, 2024)Begroing på kultivert tare som følge av mosdyrkolonier er en av hovedutfordringene for tareindustrien i Midt- og Sør-Norge. Membranipora membranacea og Electra pilosa er to fremtredende mosdyrarter som fører til begroing ... -
Using an apex predator for large-scale monitoring of trace element contamination: Associations with environmental, anthropogenic and dietary proxies
(Journal article; Peer reviewed, 2019)Understanding the levels and drivers of contamination in top predators is important for their conservation and eventual use as sentinels in environmental monitoring. Therefore, metals and trace elements were analyzed in ... -
Using ecological context to interpret spatiotemporal variation in natural selection
(Peer reviewed; Journal article, 2020)Spatiotemporal variation in natural selection is expected, but difficult to estimate. Pollinator‐mediated selection on floral traits provides a good system for understanding and linking variation in selection to differences ... -
Using morphology and DNA barcoding to assess species diversity within the isopod genera Jaera Leach, 1814, Janira Leach, 1814 and Idotea Fabricius, 1798 in Norway
(Master thesis, 2021)Foreningen av morfologiske undersøkelser og DNA strekkoding, vil for mange regnes som de mest sentrale metodene i moderne studier om biodiversitet. Sammen har disse metodene stor kapasitet til å gi ny kunnskap og innsikt ... -
Using Tea Bag index to examine the effects of ditching in boreal peatlands
(Master thesis, 2021)Menneskelige inngrep har ofte dårlige konsekvenser for myrer, som oftest grunnet grøfting. Vi har studert hvordan grøfting påvirker nedbrytningsraten i det nærliggende området gjennom et transekt studie i en ombrotrof ... -
Utilization of excess nutrients from land-based aquaculture facilities by Hediste diversicolor (O.F. Müller, 1776) - Production of polychaete biomass and its potential use in fish feed
(Master thesis, 2017)Farming of Atlantic salmon (Salmo salar) is highly dependent on marine resources such as fish meal and fish oil. In Norway, supply of high quality raw materials and control of waste discharges from aquaculture are factors ... -
Utilization of the polychaete Hediste diversicolor (O.F. Millier, 1776) in recycling waste nutrients from land-based fish farms for valueadding applications'
(Doctoral theses at NTNU;2020:133, Doctoral thesis, 2020)Aquaculture has become one of the world’s fastest growing food production industries to meet the nutrient demand of the growing human population. Atlantic salmon, which accounts for 4% of the global marine fish production, ... -
Uttrykk og betydning av GRP78 i myelomceller
(Master thesis, 2014)Myelomatose, også kjent som beinmargskreft, er en hematologisk malign sykdom i antistoffproduserende plasmaceller i beinmargen. Kreftsykdommen er fortsatt uhelbredelig, og resistensutvikling mot medikamenter er en stor ... -
Utvidet studie av PLA2-uttrykk i HaCaT-keratinocytter: .
(Master thesis, 2011)I denne masteroppgaven har det blitt utviklet primerpar for 17 humane PLA2-isotyper. Ved hjelp av primerene har vi påvist uttrykk av 17 PLA2-isotyper i HaCaT-keratinocytter, hvorav 11 av disse representerer førstegangspåvisninger ... -
Utvikling og optimalisering av protokoll for massespektrometrisk metabolsk profilering av adherente humane celler
(Master thesis, 2012)I metabolomikk er målet å kvantifisere alle metabolitter i et biologisk system i en definert tilstand, på et bestemt tidspunkt. For å oppnå dette er en god protokoll for prøveopparbeidelse og analyse essensielt. Flere ... -
UV reflectance as a cue in egg discrimination in two Prinia species exploited differently by brood parasites in Taiwan
(Journal article, 2013)Birds are capable of seeing the ultraviolet light (UV) spectrum and as a consequence have evolved UV-reflective structures with signalling functions. Avian eggs also reflect in the UV spectrum but the importance of UV egg ... -
UV treatment in RAS influences the rearing water microbiota and reduces the survival of European lobster larvae (Homarus gammarus)
(Peer reviewed; Journal article, 2021)The rearing environment is important for a stable production of good quality lobster juveniles. By providing an environment excluding pathogens and dominated by mutualistic bacteria, the probability of developing healthy ... -
Variability in Calanus spp. abundance on fine- to mesoscales in an Arctic fjord: implications for little auk feeding
(Journal article; Peer reviewed, 2014)We studied the abundance of calanoid copepods of the genus Calanus in a high-resolution sampling grid located in the vicinity of a breeding colony of an avian Calanus predator, the little auk (Alle alle) in an Arctic fjord ... -
Variation and correlation in the timing of breeding of North Atlantic seabirds across multiple scales
(Peer reviewed; Journal article, 2022)1. Timing of breeding, an important driver of fitness in many populations, is widely studied in the context of global change, yet despite considerable efforts to identify environmental drivers of seabird nesting phenology, ... -
Variation in basal metabolic rate within bats of the family Vespertilionidae
(Master thesis, 2020)Mange fysiologiske variabler, slik som metabolsk rate, varierer med klima og breddegrad. Det finnes imildertid lite informasjon om termoregulering i flaggermus ved høye breddegrader. Derfor undersøkte jeg de termoregulerende ...