Blar i NTNU Open på forfatter "Kjørsvik, Elin"
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Effects of live feed quality on cod (Gadus morhua L.) larval muscle growth and development: .
Halseth, Christine Kurki (Master thesis, 2011)- -
Effects of phospholipids and bile salts on the growth, survival and nutritional status in the liver of Atlantic cod larvae and juveniles
Nunes, Bruno (Master thesis, 2023)Atlantisk torsk er en art av interesse for å diversifisere norsk havbruk. Til tross for veksten i kommersielt torskeoppdrett, er produksjonen av settefisk fortsatt en utfordring. Ernæringsbehov i tidlige stadier, spesielt ... -
Effects of temperature, salinity and diet on embryonic and early larval development in Littorina littorea (Gastropoda: Littorinimorpha)
Lillebjerka, Tora; Malzahn, Arne; Kjørsvik, Elin; Hagemann, Andreas (Peer reviewed; Journal article, 2023)Introduction: The common periwinkle Littorina littorea is a delicacy in southern Europe. Enabling aquaculture production would be measure to avoid future over-harvesting and ensure a constant market supply. Methods: ... -
Effects on growth, survival and bone development from start feeding lumpsucker (Cyclopterus lumpus) larvae with Artemia, copepods and fomulated feed
Hanssen, Julie Terese (Master thesis, 2018)Salmon lice (Lepeoptherius solmonis) is a major health problem in salmon (Salmo salar) production. Reduced lice sensitivity towards several of the chemical treatments have increased the interest in cleaner fish used to ... -
Embryonic development and sensitive stages of Atlantic salmon (Salmo salar) eggs
Alves Musialak, Luciana (Master thesis, 2020)Atlantic salmon (Salmo salar) aquaculture is of great importance to Norway. The egg and hatchery sector, is important both finacially and biologically to salmon production, since it is essential to provide a broodstock ... -
First feed matters: The first diet of larval fish programmes growth, survival, and metabolism of larval ballan wrasse (Labrus bergylta)
Malzahn, Arne; Ribicic, Deni; Hansen, Bjørn Henrik; Sarno, Antonio; Kjørsvik, Elin; Aase, Anna Sigrid Nordberg; Alves Musialak, Luciana; Garcia Calvo, Laura; Hagemann, Andreas (Peer reviewed; Journal article, 2022)The use of cleaner fish, such as the ballan wrasse (Labrus bergylta), is important for combatting the sea lice problem in salmonid cage farming. Ballan wrasse is the only wrasse species that is cultivated, though only about ... -
Growth, survival and liver histology in lumpfish (Cyclopterus lumpus) larvae fed different start-feeding diets (Artemia, copepods, cirripeds and formulated diet)
Kværnø, Sunniva Brevik (Master thesis, 2022)Den norske produksjonen av atlantisk laks (Salmo salar) har siden 2012 vært stabil, hovedsakelig på grunn av problemer med lakselus (Lepeophtheirus salmonis). For å bekjempe lusa har det blitt satt ut lusespisende rensefisk ... -
The impact of exposure timing on embryo mortality and the partitioning of PAHs when cod eggs are exposed to dispersed and dissolved crude oil
Nordtug, Trond; Olsen, Anders Johny; Wold, Per-Arvid; Salaberria, Iurgi; Øverjordet, Ida Beathe; Altin, Dag; Kjørsvik, Elin; Hansen, Bjørn Henrik (Peer reviewed; Journal article, 2022)During sub-sea oil spills to the marine environment, oil droplets will rise towards the sea surface at a rate determined by their density and diameter as well as the vertical turbulence in the water. Micro-droplets (< 50 ... -
Investigating development, incubation and dietary effects in egg and veliger larvae of Littorina littorea (Linnaeus, 1758)
Lillebjerka, Tora (Master thesis, 2022)Vanlig Strandsnegl (Littorina littorea) er en lite utnyttet delikatesse i Norge, men arten sankes, eksporteres og konsumeres i mange europeiske land. Denne studien har undersøkt noen av de tidligere ukjente faktorene som ... -
Lipids and fatty acids development in lumpfish (Cyclopterus lumpus) larvae fed with different start feeding diets (Artemia, cirripedia, copepod (Acartia tonsa) and formulated diet
Akbar, Saba (Master thesis, 2022)Salmon lice (Lepeophtheirus salmonis) infestations on Salmonids (Salmo salar) in cages has brought Norwegian aquaculture to a stable production since 2012. Many chemotherapeutic , chemical, and mechanical approaches have ... -
Microbial characterization and influence on copepod (Acartia tonsa) nauplii and egg production in water treatment systems with and without membrane filtration
Phan Hung, Anh (Master thesis, 2014)Acartia tonsa is a pelagic calanoid copepod with a diverse distribution, a wide tolerance of temperature and salinities, has short generation time, can produce resting eggs, and has been considered as an excellent feed for ... -
Morphological development of wild leptocephalus larvae of the European eel (Anguilla anguilla) - With special emphasis on muscle and digestive system
Knutsen, Helene Rønquist (Master thesis, 2015)The larval stage of the European eel (Anguilla anguilla) is largely undescribed. Increased knowledge about the ontogeny of the eel is be of interest both in an ecological perspective, but also in relation to a conservation, ... -
Muscle growth and development in lumpfish (Cyclopterus lumpus) larvae in relation to start-feeding diets (Artemia, cirripedia, copepod (Acartia tonsa) and formulated diet)
Lindskog, Marte Solli (Master thesis, 2021)Oppdrett av Atlantisk laks (Salmo salar) i Norge har vært negativt påvirket av lakselus (Lepeophtheirus salmonis) i en lengre periode. Ulike kjemiske midler har blitt brukt for å bli kvitt lakselusen, men en høyere resistans ... -
Nutritional condition of ballan wrasse (Labrus bergylta) larvae reared on different live feed diets – an investigation of gut and liver histology
Aase, Anna Sigrid Norberg (Master thesis, 2022)Lakselusproblematikk fortsetter å være den største hindringen for fortsatt vekst i den norske laksenæringen, hvor mange avlusningsoperasjoner blir gjennomført hvert år for å holde lusetallene nede. Bruk av berggylt som en ... -
OC2017 A-029 - Vannkvalitet og startfôring av rognkjeks - Effekt av fôring med levende copepoder i tidlige faser (FHF prosjekt nr 901174)
Dahle, Stine Veronica Wiborg; Hagemann, Andreas; Attramadal, Kari; Kjørsvik, Elin; Bardal, Tora (Research report, 2017)I oppdrett av rognkjeks benyttes fonnulert tønfor av små partikler fra start, som gir mye forspill i karene. Høy og varierende organisk belastning i systemet gir grobunn for oppblomstring av opportunistiske bakterier ... -
Ontogeny of the digestive system in lumpfish (Cyclopterus lumpus L.) larvae in relation to growth and start feeding diet - A histological and stereological approach
Marthinsen, Joachim Larsen (Master thesis, 2018)Global aquaculture production of Atlantic salmon (Salmo salar) has stabilized since 2012 due to high prevalence of the ectoparasitic sea lice (Lepeophtheirus salmonis). Deployment of lice-eating cleaner fish is considered ... -
Oocyte and egg quality indicators in European eel: lipid droplet coalescence and fatty acid composition.
da Silva, Filipa F.G.; Jacobsen, Charlotte; Kjørsvik, Elin; Støttrup, Josianne G.; Tomkiewicz, Jonna (Journal article; Peer reviewed, 2018)During European eel assisted reproduction, timely administration of hormones that induce oocyte maturation and ovulation is a major factor influencing subsequent egg quality. This treatment commonly comprises one injection ... -
Ova lipid profiling and egg quality in wild and captive lumpfish, Cyclopterus lumpus (Linnaeus, 1758)
Hansen, Bjørn Henrik; Kjørsvik, Elin; Malzahn, Arne; Sarno, Antonio; Kulild, Ole Martin; Farkas, Julia; Nordtug, Trond; Rye, Rebecca; Kvæstad, Bjarne; Lein, Ingrid; Hagemann, Andreas (Peer reviewed; Journal article, 2022)Lumpfish (Cyclopterus lumpus) serves an important role as cleaner fish for removing salmon lice in salmon aquaculture. For this use, cultivated lumpfish are preferred over wild-caught fish to avoid overexploitation of ... -
Particle characterization and influence on the nauplii and egg production of calanoid copepod (Acartia tonsa Dana) in water treatment systems with and without membrane filtration
Pham, Thanh Day (Master thesis, 2014)The calanoid copepod Acartia tonsa has been demonstrated to be able to replace the Artemia or rotifer for marine fish larvae due to its excellent nutrient, wide range of temperature and salinity tolerance and capability ... -
Prevalence of fin erosion, shortened operculum and lesions in farmed Atlantic Salmon (Salmo salar)
Skipnes, Bruna Iannone (Master thesis, 2014)The aim of the study was to study the ocurrence of fin erosion, opercular deformities and body lesions in a smolt Production cycle of Atlantic salmon (Salmo salar), in relation to environmental parameters and features.