Blar i Brage på forfatter "Rusch, Johannes"
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Catching the fish with the worm: A case study on eDNA detection of the monogenean parasite Gyrodactylus salaris and two of its hosts, Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss)
Rusch, Johannes; Hansen, Haakon; Strand, David; Markussen, Turhan; Hytterød, Sigurd; Vrålstad, Trude (Peer reviewed; Journal article, 2018) -
Effekter av kloramineksponering på stor, voksen laks (Salmo salar)
Hytterød, Sigurd; Olstad, Kjetil; Rusch, Johannes; Garmo, Øyvind Aaberg; Gjessing, Mona Cecilie; Kraugerud, Marianne; Hagen, Anders Gjørwad (NIVA-rapport, Research report, 2020)Forsøk har vist at lakseparasitten Gyrodactylus salaris er svært følsom for klorforbindelser, og at lave konsentrasjoner fjerner parasitten fra laksunger uten at laksunger påvirkes i vesentlig negativ grad. Høsten 2019 ... -
Environmental DNA (eDNA) Monitoring of Noble Crayfish Astacus astacus in Lentic Environments Offers Reliable Presence-Absence Surveillance – But Fails to Predict Population Density
Johnsen, Stein Ivar; Strand, David; Rusch, Johannes; Vrålstad, Trude (Peer reviewed; Journal article, 2020)Noble crayfish is the most widespread native freshwater crayfish species in Europe. It is threatened in its entire distribution range and listed on the International Union for Concervation Nature- and national red lists. ... -
Environmental DNA (eDNA) monitoring of two different freshwater host-pathogen complexes in the interface between nature and aquaculture
Rusch, Johannes; Vrålstad, Trude; Strand, David; Andersen, Tom; Hansen, Haakon (Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo., Doctoral thesis, 2021) -
Expanding ecological assessment by integrating microorganisms into routine freshwater biomonitoring
Mareckova, Marketa; Boenigk, Jens; Bouchez, Agnès; Cermakova, Kristina; Chonova, Teofana; Cordier, Tristan; Eisendle, Ursula; Eleršek, Tina; Fazi, Stefano; Fleituch, Tadeusz; Frühe, Larissa; Gajdošová, Magdalena; Graupner, Nadine; Hägerbäumer, Arne; Kelly, Ann-Marie; Kopecky, Jan; Leese, Florian; Nõges, Peeter; Orlić, Sandi; Panksep, Kristel; Pawlowski, Jan; Petrusek, Adam; Piggott, Jeremy J.; Rusch, Johannes; Salis, Romana Katerina; Schenk, Janina; Šimek, Karel; Šťovíček, Adam; Strand, David; Vasquez, Marlen; Vrålstad, Trude; Zlatković, Slobodan; Zupancic, Masa; Stoeck, Thorsten (Peer reviewed; Journal article, 2021) -
Exploring the eDNA dynamics of the host-pathogen pair Pacifastacus leniusculus (Decapoda) and Aphanomyces astaci (Saprolegniales) under experimental conditions
Rusch, Johannes; Strand, David; Laurendz, Charlotte; Andersen, Tom; Johnsen, Stein Ivar; Edsman, Lennart; Vrålstad, Trude (Peer reviewed; Journal article, 2022)The oomycete Aphanomyces astaci causes crayfish plague, a disease threatening native European crayfish. It is carried and transmitted by American crayfish species, which are the original hosts of A. astaci. In recent years, ... -
Exploring the eDNA dynamics of the host-pathogen pair Pacifastacus leniusculus (Decapoda) and Aphanomyces astaci (Saprolegniales) under experimental conditions
Rusch, Johannes; Strand, David; Laurendz, Charlotte; Andersen, Tom; Johnsen, Stein Ivar; Edsman, Lennart; Vrålstad, Trude (Peer reviewed; Journal article, 2022)The oomycete Aphanomyces astaci causes crayfish plague, a disease threatening native European crayfish. It is carried and transmitted by American crayfish species, which are the original hosts of A. astaci. In recent years, ... -
Forsøksbehandling med monokloramin mot lakseparasitten Gyrodactylus salaris i Driva
Hagen, Anders Gjørwad; Becsan, Ingar; Escudero-Oñate, Carlos; Garmo, Øyvind Aaberg; Grønneberg, Estelle; Hansen, Peter Stig; Holter, Tobias Houge; Hytterød, Sigurd; Martinez-Frances, Elena; Olstad, Kjetil; Ribeiro, Anne Luise; Rusch, Johannes (NIVA-rapport, Research report, 2020)Klor tilsatt som monokloramin i svært lave konsentrasjoner kan fjerne Gyrodactylus salaris fra laksunger i løpet av få dager uten å ha synlige negative effekter på fisken. I denne rapporten presenteres et feltforsøk der ... -
Gyrodactylus salaris Malmberg, 1957 (Monogenea, Gyrodactylidae) spreads further – a consequence of rainbow trout farming in Northern Russia
Hansen, Haakon; Ieshko, Evgeny; Rusch, Johannes; Samokhvalov, Igor; Melnik, Vera; Mugue, Nikolai; Sokolov, Sergey; Parshukov, Aleksey (Peer reviewed; Journal article, 2022) -
Gyrodactylus salaris Malmberg, 1957 (Monogenea, Gyrodactylidae) spreads further – the effect of rainbow trout farming in Northern Russia
Hansen, Haakon; Ieshko, Evgeny Pavlovich; Rusch, Johannes; Samokhvalov, Igor; Melnik, Vera; Mugue, Nikolay; Sokolov, Sergey G.; Parshukov, Alexey (Peer reviewed; Journal article, 2022) -
Microcystin profiles in European noble crayfish Astacus astacus and water in Lake Steinsfjorden, Norway
Miles, Christopher Owen; Strand, David; Rusch, Johannes; Ballot, Andreas; Haande, Sigrid; Løvberg, Kjersti Eriksen; Vrålstad, Trude; Samdal, Ingunn Anita (Peer reviewed; Journal article, 2024) -
Microcystins in European noble crayfish Astacus astacus in Lake Steinsfjorden, a planktothrix-dominated lake
Samdal, Ingunn Anita; Strand, David; Ballot, Andreas; Rusch, Johannes; Haande, Sigrid; Løvberg, Kjersti Eriksen; Miles, Christopher Owen; Vrålstad, Trude (Peer reviewed; Journal article, 2020) -
Microcystins in European Noble Crayfish Astacus astacus in Lake Steinsfjorden, a Planktothrix-Dominated Lake
Samdal, Ingunn Anita; Strand, David; Ballot, Andreas; Rusch, Johannes; Haande, Sigrid; Løvberg, Kjersti Eriksen; Miles, Christopher Owen; Vrålstad, Trude (Peer reviewed; Journal article, 2020) -
Nasjonal overvåking av edelkreps og spredning av signalkreps - presentasjon av overvåkingsdata og bestandsstatus – oppdatert 2019
Johnsen, Stein Ivar; Strand, David; Rusch, Johannes; Vrålstad, Trude (NINA rapport, Research report, 2019)Overvåkingsprogrammet for edelkreps ble startet opp i 2001. Programmets overordnede mål er å overvåke tilstanden til et utvalg av de viktigste norske edelkrepsbestandene slik at større endringer i bestandsstatus kan avdekkes. ... -
Nasjonal overvåking av edelkreps og spredning av signalkreps - presentasjon av overvåkingsdata og bestandsstatus – oppdatert 2020
Johnsen, Stein Ivar; Strand, David; Rusch, Johannes; Vrålstad, Trude (NINA rapport, Research report, 2021)Overvåkingsprogrammet for edelkreps ble startet opp i 2001. Programmets overordnede mål er å overvåke tilstanden til et utvalg av de viktigste norske edelkrepsbestandene slik at større endringer i bestandsstatus kan avdekkes. ... -
Nasjonal overvåking av edelkreps og spredning av signalkreps. Presentasjon av overvåkingsdata og bestandsstatus
Johnsen, Stein Ivar; Strand, David; Rusch, Johannes; Vrålstad, Trude (NINA rapport, Research report, 2019)Overvåkingsprogrammet for edelkreps ble startet opp i 2001. Programmets overordnede mål er å overvåke tilstanden til et utvalg av de viktigste norske edelkrepsbestandene slik at større endringer i bestandsstatus kan avdekkes. ... -
Simultaneous detection of native and invasive crayfish and Aphanomyces astaci from environmental DNA samples in a wide range of habitats in Central Europe
Rusch, Johannes; Mojžišová, Michaela; Strand, David; Svobodová, Jitka; Vrålstad, Trude; Petrusek, Adam (Peer reviewed; Journal article, 2020) -
The surveillance programme for Aphanomyces astaci in Norway 2016
Vrålstad, Trude; Strand, David; Rusch, Johannes; Toverud, Øystein; Johnsen, Stein Ivar; Tarpai, Attila; Møller, Peter Rask; Gjevre, Anne Gerd (Research report, 2017)In this surveillance program, we used two methodological approaches. One is based on the traditional cage experiments, the other relies on eDNA monitoring of the water, where DNA from spores of A. astaci are detected ... -
The surveillance programme for Aphanomyces astaci in Norway 2017
Vrålstad, Trude; Rusch, Johannes; Johnsen, Stein Ivar; Tarpai, Attila; Strand, David (Research report, 2018)In this surveillance program, we used environmental DNA (eDNA) monitoring of the water as an alternative method to the traditional cage experiments with live noble crayfish. Here, DNA from spores of Aphanomyces astaci are ... -
The surveillance programme for Aphanomyces astaci in Norway 2018
Strand, David; Rusch, Johannes; Johnsen, Stein Ivar; Tarpai, Attila; Vrålstad, Trude (Research report, 2019)In this surveillance program, environmental DNA (eDNA) monitoring of the water was used as an alternative method to the traditional cage experiments with live noble crayfish. Here, DNA from spores of Aphanomyces astaci are ...