Blar i Articles på forfatter "Skern-Mauritzen, Rasmus"
-
Aquaculture-driven evolution of the salmon louse mtDNA genome
Rutle, Karoline Hasti; Skern-Mauritzen, Rasmus; Nilsen, Frank; Mateos-Rivera, Alejandro; Sørvik, Anne Grete Eide; Jansson, Eeva; Quintela, Maria; Besnier, Francois; Ayllon, Fernando; Fjørtoft, Helene Børretzen; Glover, Kevin Alan (Peer reviewed; Journal article, 2023)Resistance toward the antiparasitic pyrethroid, deltamethrin, is reported in the Atlantic salmon louse (Lepeophtheirus salmonis salmonis), a persistent ectoparasite of farmed and wild salmonids. The resistance mechanism ... -
Characterisation of two vitellogenins in the salmon louse Lepeophtheirus salmonis: molecular, functional and evolutional analysis
Dalvin, Sussie Trine; Frost, Petter; Loeffen, Peter; Skern-Mauritzen, Rasmus; Baban, Jamil; Rønnestad, Ivar; Nilsen, Frank (Journal article; Peer reviewed, 2011-05-09)The salmon louse Lepeophtheirus salmonis Krøyer affects a variety of wild salmonoid hosts, but is also an important pest in aquaculture, which is a globally important and rapidly growing industry. Salmon lice have large ... -
Characterization of a novel RXR receptor in the salmon louse (Lepeophtheirus salmonis, Copepoda) regulating growth and female reproduction
Eichner, Christiane; Dalvin, Sussie Trine; Skern-Mauritzen, Rasmus; Malde, Ketil; Kongshaug, Heidi; Nilsen, Frank (Journal article; Peer reviewed, 2015-02-14)Nuclear receptors have crucial roles in all metazoan animals as regulators of gene transcription. A wide range of studies have elucidated molecular and biological significance of nuclear receptors but there are still a ... -
Coincident mass occurrence of gelatinous zooplankton in Northern Norway
Knutsen, Tor; Hosia, Aino; Falkenhaug, Tone; Skern-Mauritzen, Rasmus; Wiebe, Peter H.; Larsen, Roger B.; Aglen, Asgeir; Berg, Erik (Peer reviewed; Journal article, 2018)In autumn 2015, several sources reported observations of large amounts of gelatinous material in a large north Norwegian fjord system, either caught when trawling for other organisms or fouling fishing gear. The responsible ... -
Comparison of visual and molecular taxonomic methods to identify ichthyoplankton in the North Sea
Mateos-Rivera, Alejandro; Skern-Mauritzen, Rasmus; Dahle, Geir; Sundby, Svein; Mozfar, Bahar; Thorsen, Anders; Wehde, Henning; Krafft, Bjørn Arne (Peer reviewed; Journal article, 2020)The North Sea is an important spawning and nursery ground for many demersal and pelagic fishes whose spawning areas are largely overlapping in time and space. This makes ichthyoplankton visual identification from the various ... -
Composition and diversity of larval fish in the Indian Ocean using morphological and molecular methods
Rathnasuriya, M.I.G.; Mateos-Rivera, Alejandro; Skern-Mauritzen, Rasmus; Wimalasiri, H.B.U.; Jayasinghe, R.P.P.K.; Krakstad, Jens-Otto; Dalpadado, Padmini (Peer reviewed; Journal article, 2021)Although vital in fisheries management, no comprehensive studies on ichthyoplankton have been conducted in Sri Lankan waters in the north central Indian Ocean hitherto. Hence, this study is the first detailed account of ... -
Development of the salmon louse Lepeophtheirus salmonis parasitic stages in temperatures ranging from 3 to 24°C
Hamre, Lars Are; Bui, Samantha; Oppedal, Frode; Skern-Mauritzen, Rasmus; Dalvin, Sussie (Peer reviewed; Journal article, 2019) -
Disentangling the key drivers of salmon louse Lepeophtheirus salmonis fecundity using multiyear field samples
Thompson, Cameron; Bui, Samantha; Dalvin, Sussie Trine; Skern-Mauritzen, Rasmus (Peer reviewed; Journal article, 2023)Planktonic salmon louse Lepeophtheirus salmonis salmonis larvae produced at sal - mon farms spread to and infect both wild and farmed salmonids. Understanding and forecasting the production and distribution of these larval ... -
DNA barcoding confirms the first record of a Desmodema polystictum (Ogilby, 1898) egg and all-time high adult catches in the Indian Ocean.
Rathnasuriya, M.I.G.; Mateos-Rivera, Alejandro; Bandara, A.G.G.C.; Skern-Mauritzen, Rasmus; Jayasinghe, RP Prabath K; Krakstad, Jens-Otto; Dalpadado, Padmini (Peer reviewed; Journal article, 2019)The eggs of Polka-dot ribbonfish Desmodema polystictum have been recorded for the first time in the Indian Ocean. Although the only previous information on eggs from this species consists of line drawings from 1973 (Pacific ... -
The effect of a warmer climate on the salmon lice infection pressure from Norwegian aquaculture
Sandvik, Anne Dagrun; Dalvin, Sussie; Skern-Mauritzen, Rasmus; Skogen, Morten D. (Peer reviewed; Journal article, 2021)Climate change can hamper sustainable growth in the aquaculture industry by amplifying and adding to other environmental challenges. In Norway, salmon lice-induced mortality in wild salmonid populations is identified as a ... -
The effect of temperature on ability of Lepeophtheirus salmonis to infect and persist on Atlantic salmon (Salmo salar)
Dalvin, Sussie; Hamre, Lars Are; Skern-Mauritzen, Rasmus; Vågseth, Tone; Stien, Lars Helge; Oppedal, Frode; Bui, Samantha (Peer reviewed; Journal article, 2020)The salmon louse (Lepeophtheirus salmonis) is an ecologically and economically important parasite of salmonid fish. Temperature is a strong influencer of biological processes in salmon lice, with development rate increased ... -
Finding the needle in the haystack: Comparison of methods for salmon louse enumeration in plankton samples
Bui, Samantha; Dalvin, Sussie; Vågseth, Tone; Oppedal, Frode; Fossøy, Frode; Brandsegg, Hege; Jacobsen, Ása; Nordi, Gunnvør á; Fordyce, Mark; Michelsen, Helena Kling; Finstad, Bengt; Skern-Mauritzen, Rasmus (Peer reviewed; Journal article, 2021)The economic and social implications of salmon louse (Lepeophtheirus salmonis) epidemics in salmon aquaculture drive focus of the dispersal dynamics of the planktonic larval stages. The vast spatial scale and high connectivity ... -
Human-induced evolution caught in action: SNP-array reveals rapid amphi-atlantic spread of pesticide resistance in the salmon ecotoparasite Lepeophtheirus salmonis
Besnier, Francois; Kent, Matthew; Skern-Mauritzen, Rasmus; Lien, Sigbjørn; Malde, Ketil; Edvardsen, Rolf B.; Taylor, Simon; Ljungfeldt, Lina; Nilsen, Frank; Glover, Kevin A. (Journal article; Peer reviewed, 2014-10-26)Background The salmon louse, Lepeophtheirus salmonis, is an ectoparasite of salmonids that causes huge economic losses in salmon farming, and has also been causatively linked with declines of wild salmonid populations. ... -
Identification of a Sex-Linked SNP Marker in the Salmon Louse (Lepeophtheirus salmonis) Using RAD Sequencing
Carmichael, Stephen N.; Bakaert, Michaël; Taggart, John B.; Christie, Hayden R. L.; Bassett, David I.; Bron, James E.; Skuce, Philip J.; Gharb, Karim; Skern-Mauritzen, Rasmus; Sturm, Armin (Journal article; Peer reviewed, 2013-10-16)The salmon louse (Lepeophtheirus salmonis (Krøyer, 1837)) is a parasitic copepod that can, if untreated, cause considerable damage to Atlantic salmon (Salmo salar Linnaeus, 1758) and incurs significant costs to the Atlantic ... -
Illuminating the planktonic stages of salmon lice: A unique fluorescence signal for rapid identification of a rare copepod in zooplankton assemblages
Thompson, Cameron; Bron, James E.; Bui, Samantha; Dalvin, Sussie; Fordyce, Mark; Furmanek, Tomasz; Nordi, Gunnvør á; Skern-Mauritzen, Rasmus (Peer reviewed; Journal article, 2021)Monitoring of planktonic salmon louse (Lepeophtheirus salmonis salmonis) abundance and parameterization of key life-history traits has been hindered by labour-intensive and error-prone quantification using traditional light ... -
The information continuum model of evolution
Skern-Mauritzen, Rasmus; Mikkelsen, Thomas Nygaard (Peer reviewed; Journal article, 2021)Most biologists agree that evolution is contingent on inherited information shaped by natural selection. This apparent consensus could be taken to indicate agreement on the forces shaping evolution, but vivid discussions ... -
A novel method for the rapid enumeration of planktonic salmon lice in a mixed zooplankton assemblage using fluorescence
Thompson, Cameron; Bron, James Emmanuel; Bui, Samantha; Dalvin, Sussie; Fordyce, Mark; Nordi, Gunnvør á; Skern-Mauritzen, Rasmus (Peer reviewed; Journal article, 2022)The relative rarity of the planktonic larval stages of salmon lice in comparison to other animals captured in a zooplankton assemblage is an obstacle to estimating their abundance and distribution. Due to the labour ... -
Pacific and Atlantic Lepeophtheirus salmonis (Krøyer, 1838) are allopatric subspecies: Lepeophtheirus salmonis salmonis and L. salmonis oncorhynchi subspecies novo
Skern-Mauritzen, Rasmus; Torrissen, Ole; Glover, Kevin A. (Journal article; Peer reviewed, 2014-03-14)Background The salmon louse Lepeophtheirus salmonis is a parasitic copepod that infects salmonids in the Pacific and Atlantic oceans. Although considered as a single species, morphological and biological differences have ... -
Parasite development affect dispersal dynamics; infectivity, activity and energetic status in cohorts of salmon louse copepodids
Skern-Mauritzen, Rasmus; Sissener, Nini; Sandvik, Anne Dagrun; Meier, Sonnich; Sævik, Pål Næverlid; Skogen, Morten D.; Vågseth, Tone; Dalvin, Sussie; Skern-Mauritzen, Mette; Bui, Samantha (Peer reviewed; Journal article, 2020)The salmon louse, Lepeophtheirus salmonis, is a parasitic copepod infecting wild and farmed salmonid fishes in the northern hemisphere. It has a direct lifecycle with a planktonic dispersal phase and an infective copepodid ... -
Protective Immunization of Atlantic Salmon (Salmo salarL.)against Salmon Lice (Lepeophtheirus salmonis) Infestation
Tartor, Haitham; Karlsen, Marius; Skern-Mauritzen, Rasmus; Monjane, Adérito Luis; Press, Charles McLean; Wiik-Nielsen, Christer R.; Olsen, Rolf Hetlelid; Leknes, Lisa Marie; Yttredal, Karine Lindmo; Brudeseth, Bjørn Erik; Grove, Søren (Peer reviewed; Journal article, 2021)Vaccination against salmon lice (Lepeophtheirus salmonis) is a means of control that averts the negative effects of chemical approaches. Here, we studied the immunogenicity and protective effect of a vaccine formulation ...