Browsing NIBIO Brage by Author "Maduna, Simo"
Now showing items 1-13 of 13
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Application of DNA mini-barcoding reveals illegal trade in endangered shark products in southern Africa
Asbury, Tamaryn A.; Bennett, Rhett; Price, Aidan; da Silva, Charlene; Bürgener, Markus; Klein, Juliana D.; Maduna, Simo; Sidat, N.; Fernando, S.; Bester-van der Merwe, Aletta E. (Peer reviewed; Journal article, 2021-12-05)In recent decades, a combination of increasing demand and economic globalisation has created a global market for elasmobranch products, especially the highly prized shark fins for Asian markets. Morphological species ... -
A comprehensive phylogenomic study unveils evolutionary patterns and challenges in the mitochondrial genomes of Carcharhiniformes: A focus on Triakidae
Winn, Jessica; Maduna, Simo; Bester-van der Merwe, Aletta E. (Peer reviewed; Journal article, 2023-12-30)The complex evolutionary patterns in the mitochondrial genome (mitogenome) of the most species-rich shark order, the Carcharhiniformes (ground sharks) has led to challenges in the phylogenomic reconstruction of the families ... -
Genetic analysis indicates spatial-dependent patterns of sex-biased dispersal in Eurasian lynx in Finland
Herrero, Annika; Klutsch, Cornelya; Holmala, Katja; Maduna, Simo; Kopatz, Alexander; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2021-02-19)Conservation and management of large carnivores requires knowledge of female and male dispersal. Such information is crucial to evaluate the population’s status and thus management actions. This knowledge is challenging ... -
Genetic changes caused by restocking and hydroelectric dams in demographically bottlenecked brown trout in a transnational subarctic riverine system
Klutsch, Cornelya; Maduna, Simo; Polikarpova, Natalia; Forfang, Kristin; Aspholm, Paul Eric; Nyman, Tommi; Eiken, Hans Geir; Amundsen, Per-Arne; Hagen, Snorre (Journal article; Peer reviewed, 2019-04-29)Habitat discontinuity, anthropogenic disturbance, and overharvesting have led to population fragmentation and decline worldwide. Preservation of remaining natural genetic diversity is crucial to avoid continued genetic ... -
Genome- and transcriptome-derived microsatellite loci in lumpfish Cyclopterus lumpus: Molecular tools for aquaculture, conservation and fisheries management
Maduna, Simo; Vivian-Smith, Adam; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Klutsch, Cornelya; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2020-01-17)The lumpfish Cyclopterus lumpus is commercially exploited in numerous areas of its range in the North Atlantic Ocean, and is important in salmonid aquaculture as a biological agent for controlling sea lice. Despite the ... -
Genomic Signatures of Local Adaptation under High Gene Flow in Lumpfish—Implications for Broodstock Provenance Sourcing and Larval Production
Maduna, Simo; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Gíslason, Davíð; Reynolds, Patrick; Kapari, Lauri Teemu; Hangstad, Thor Arne; Meier, Kristian; Hagen, Snorre (Peer reviewed; Journal article, 2023-09-26)Aquaculture of the lumpfish (Cyclopterus lumpus L.) has become a large, lucrative industry owing to the escalating demand for “cleaner fish” to minimise sea lice infestations in Atlantic salmon mariculture farms. We used ... -
Lack of population genetic structure of lumpfish along the Norwegian coast: A reappraisal based on EST-STRs analyses
Jónsdóttir, Ólöf Dóra Bartels; Gíslason, Davíð; Ólafsdóttir, Guðbjörg; Maduna, Simo; Hagen, Snorre; Reynolds, Patrick; Sveinsson, Sæmundur; Imsland, Albert (Peer reviewed; Journal article, 2022-04-13)Lumpfish is now the single most important cleaner fish species to date and there is an extensive lumpfish translocation along the Norwegian coast. A reliable baseline information about the population genetic structure of ... -
Loss of species and genetic diversity during colonization: Insights from acanthocephalan parasites in northern European seals
Sromek, Ludmila; Ylinen, Eeva; Kunnasranta, Mervi; Maduna, Simo; Sinisalo, Tuula; Michell, Craig T.; Kovacs, Kit M.; Lydersen, Christian; Ieshko, Evgeny; Andrievskaya, Elena; Alexeev, Vyacheslav; Leidenberger, Sonja; Hagen, Snorre; Nyman, Tommi (Peer reviewed; Journal article, 2023-10-19)Studies on host–parasite systems that have experienced distributional shifts, range fragmentation, and population declines in the past can provide information regarding how parasite community richness and genetic diversity ... -
Mitogenomics of the suborder Cottoidei (Teleostei: Perciformes): Improved assemblies, mitogenome features, phylogeny, and ecological implications
Maduna, Simo; Vivian-Smith, Adam; Jónsdóttir, Ólöf Dóra Bartels; Imsland, Albert; Klutsch, Cornelya; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2022-03-02)We determined the mitogenome of Cyclopterus lumpus using a hybrid sequencing approach, and another four closely related species in the Liparidae based on available next-generation sequence data. We found that the mitogenome ... -
Novel insight into lepidopteran phylogenetics from the mitochondrial genome of the apple fruit moth of the family Argyresthiidae
Elameen, Abdelhameed; Maduna, Simo; Magerøy, Melissa; van Eerde, André; Knudsen, Geir; Hagen, Snorre; Eiken, Hans Geir (Peer reviewed; Journal article, 2024-01-02)Background The order Lepidoptera has an abundance of species, including both agriculturally beneficial and detrimental insects. Molecular data has been used to investigate the phylogenetic relationships of major subdivisions ... -
Sea ice reduction drives genetic differentiation among Barents Sea polar bears
Maduna, Simo; Aars, Jon; Fløystad, Ida; Klutsch, Cornelya; Fiskebeck, Eve Marie Louise Zeyl; Wiig, Øystein; Ehrich, Dorothee; Andersen, Magnus; Bachmann, Lutz; Derocher, Andrew E.; Nyman, Tommi; Eiken, Hans Geir; Hagen, Snorre (Peer reviewed; Journal article, 2021-09-08)Loss of Arctic sea ice owing to climate change is predicted to reduce both genetic diversity and gene flow in ice-dependent species, with potentially negative consequences for their long-term viability. Here, we tested for ... -
Temporal analysis shows relaxed genetic erosion following improved stocking practices in a subarctic transnational brown trout population
Klutsch, Cornelya; Maduna, Simo; Polikarpova, Natalia; Forfang, Kristin; Beddari, Benedicte Lissner; Gjelland, Karl Øystein; Aspholm, Paul Eric; Amundsen, Per-Arne; Hagen, Snorre (Peer reviewed; Journal article, 2021-08-30)Maintaining standing genetic variation is a challenge in human-dominated landscapes. We used genetic (i.e., 16 short tandem repeats) and morphological (i.e., length and weight) measurements of 593 contemporary and historical ... -
Towards better lumpfish: Changes in size variation, cataract development, behaviour and sea lice grazing through selective breeding
Imsland, Albert; Reynolds, Patrick; Kapari, Lauri Teemu; Maduna, Simo; Hagen, Snorre; Hanssen, Anne; Jónsdóttir, Ólöf Dóra Bartels (Peer reviewed; Journal article, 2023-09-05)The aim of this study was to evaluate whether sea lice grazing efficiency, behaviour, size variation and cataract development can be improved through selective breeding of lumpfish. A series of studies was conducted over ...