Luke
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Jukuri

Tervetuloa käyttämään Jukuria, Luonnonvarakeskuksen (Luke) avointa julkaisuarkistoa. Jukurissa on tiedot Luken julkaisutuotannosta. Osa julkaisuista on vapaasti ladattavissa. Luken muodostaneiden tutkimuslaitosten aikaisemmasta julkaisutuotannosta osan tiedot ovat järjestelmässä jo nyt ja kattavuus paranee jatkuvasti.

Kokoelmat

Viimeksi tallennetut

  • Inland and early marine migration patterns of silver european eels Anguilla anguilla (Linnaeus, 1758)
    Dainys, Justas; Frankowski, Jens; Sjöberg, Niklas; Kristensen, Martin Lykke; Koed, Anders; Helminen, Jani
    Estuarine coastal and shelf science (Academic Press, 2026)
  • Kasvutunnelimuovien valonläpäisyominaisuuksien arviointi spektrimittausten avulla
    Kotilainen, Titta; Rikala, Kati
    Luke Tietokortti (Luonnonvarakeskus, 2026)
    Marjojen tuotanto kasvutunneleissa lisääntyy tasaisesti Suomessa, sillä katettu tunneli suojaa sään vaihteluilta, pidentää satokautta, tehostaa tuotantopanosten käyttöä ja lisää satoa pinta-alaa kohden, mikä pienentää myös tuotannon ympäristöjalanjälkeä. Kasvutunnelit tehostavat lisäksi biologisen torjunnan käyttöä ja kouruviljely vähentää maalevintäisten tautien leviämisriskiä. Viimeisen kymmenen vuoden aikana kotimaisen mansikan tunneliviljelyala on kasvanut voimakkaasti ja myös vadelman tunneliviljelyala on kaksinkertaistunut. Vuonna 2025 tunnelimansikkaa oli viljelyssä 89 hehtaaria ja tunnelivadelmaa 33 hehtaaria.
  • On spatial point processes with composition-valued marks
    Eckardt, Matthias; Myllymäki, Mari; Greven, Sonja
    International statistical review (Wiley-Blackwell, 2025)
    Habitat restoration may protect brown trout (Salmo trutta) populations from loss of genetic diversity by increasing environmental carrying capacity and, consequently, population size. However, the accompanying release of hatchery-reared fish may threaten the genetic integrity of native populations through introgression. We monitored the genetic composition of four native brown trout populations using 16 putatively neutral microsatellite loci in small boreal streams subjected to restoration measures and the release of hatchery-reared brown trout. Sampling was conducted before restoration, during the expected recovery phase, and after recovery. Analysis of population composition over the 19-year study period indicated interbreeding between hatchery and wild fish shortly after the releases, but the most recent samples predominantly represented native, presumably resident genotypes. Restoration treatments had no detectable effects on the genetic diversity of the small study populations. Our results add to the evidence suggesting that stocking with non-native fish is ineffective in enhancing wild populations.
  • Modelling covariance structures in determinantal point processes for spatio-temporal interactions
    Vafaei, Nafiseh; Myllymäki, Mari; Ghorbani, Mohammad
    Communications in statistics: theory and methods : 15 (Taylor & Francis, 2026)
    Habitat restoration may protect brown trout (Salmo trutta) populations from loss of genetic diversity by increasing environmental carrying capacity and, consequently, population size. However, the accompanying release of hatchery-reared fish may threaten the genetic integrity of native populations through introgression. We monitored the genetic composition of four native brown trout populations using 16 putatively neutral microsatellite loci in small boreal streams subjected to restoration measures and the release of hatchery-reared brown trout. Sampling was conducted before restoration, during the expected recovery phase, and after recovery. Analysis of population composition over the 19-year study period indicated interbreeding between hatchery and wild fish shortly after the releases, but the most recent samples predominantly represented native, presumably resident genotypes. Restoration treatments had no detectable effects on the genetic diversity of the small study populations. Our results add to the evidence suggesting that stocking with non-native fish is ineffective in enhancing wild populations.
  • Do habitat restoration efforts and the associated releases of hatchery‐reared fish affect the genetic diversity and integrity of native brown trout populations?
    Alwash, Noor; Huusko, Ari; Leinonen, Tuomas; Vehanen, Teppo; Mäki‐Petäys, Aki; Mottola, Giovanna; Vainikka, Anssi
    Fisheries management and ecology (Wiley-Blackwell, 2026)
    Habitat restoration may protect brown trout (Salmo trutta) populations from loss of genetic diversity by increasing environmental carrying capacity and, consequently, population size. However, the accompanying release of hatchery-reared fish may threaten the genetic integrity of native populations through introgression. We monitored the genetic composition of four native brown trout populations using 16 putatively neutral microsatellite loci in small boreal streams subjected to restoration measures and the release of hatchery-reared brown trout. Sampling was conducted before restoration, during the expected recovery phase, and after recovery. Analysis of population composition over the 19-year study period indicated interbreeding between hatchery and wild fish shortly after the releases, but the most recent samples predominantly represented native, presumably resident genotypes. Restoration treatments had no detectable effects on the genetic diversity of the small study populations. Our results add to the evidence suggesting that stocking with non-native fish is ineffective in enhancing wild populations.