0000000000077341

AUTHOR

Päivi Rintamäki-kinnunen

showing 3 related works from this author

Finnish salmon resistant to Gyrodactylus salaris: a long-term study at fish farms.

1996

Abstract The occurrence of Gyrodactylus salaris on Baltic salmon ( Salmo salar ), sea trout ( S. trutta m. trutta ) and brown trout ( S. trutta m. lacustris ) was examined from 1984 to 1993 at 4 fish farms (A, B, C and D) that produce smolts for stocking in northern Finland. No G. salaris was found on the sea or brown trout, but it did occur on salmon for 6–7 years at farms B, C and D, the prevalences of infection being 9.5%, 17.7% and 8.8% for salmon yearlings and smolts during that time, respectively, but less than 1.2% for fingerlings at farms B and C. Only brood stock salmon were infected at farm A in 4 years. The abundances of G. salaris increased during the second winter of each year …

TroutFish farmingFisheriesBroodstockBrown troutFish DiseasesStockingSalmonmedicineAnimalsSalmoSalmonidaeFinlandbiologySeasonalitybiology.organism_classificationmedicine.diseaseCestode InfectionsImmunity InnateFisheryInfectious DiseasesGyrodactylus salarisCestodaRegression AnalysisParasitologySeasonsInternational journal for parasitology
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Epizootiology of protozoans in farmed salmonids at northern latitudes

1997

Abstract Protozoan ectoparasites were examined in a northern salmonid fish farm over a 10-year period, June 1984–May 1994, by the same researcher, with similar catching and sampling procedures throughout. Husbandry procedures remained constant during the study, e.g., fingerlings were kept in steel tanks and yearlings in both steel tanks and earth ponds. Ichthyobodo necator, Chilodonella hexasticha and Ichthyophthirius multifilurs infections were treated with formalin, salt and malachite green-formalin baths, respectively, whenever any parasites were found. Altogether 10 790 randomly sampled salmon (Salmo solar), sea trout (S. trutta m. trutta) and brown trout (S. trutta m. lacustris) were s…

TrichodinaTroutClimateFish farmingZoologyFresh WaterEctoparasitic InfestationsFish DiseasesBrown troutSpecies SpecificityAquacultureSalmonPrevalenceAnimalsSeawaterSalmoProtozoan Infections AnimalFinlandSalmonidaeProtozoan InfectionsbiologyIchthyophthirius multifiliisbusiness.industryAge FactorsTemperatureEukaryotaCold Climatebiology.organism_classificationFisheryTroutInfectious DiseasesAnimals DomesticParasitologySeasonsbusinessSalmonidaeInternational Journal for Parasitology
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Diagnosis of flavobacteriosis by direct amplification of rRNA genes

2002

A broad-range bacterial PCR method with universal 16S rDNA targeting primers and bacterial cultivation was used to identify the putative pathogen in flavobacterial outbreaks. Restriction fragment length polymorphism (PCR-RFLP) analysis and sequencing of the partial 16S rDNA PCR products of 10 skin samples and 10 representative isolates derived from the same fish specimens revealed differences between direct molecular and cultivation-based analysis. Flavobacterium columnare-like sequences dominated in the direct molecular analysis in most cases, whereas most of the isolates belonged to a phylogenetically heterogeneous group of flavobacteria clustering with F. hibernum. F. columnare was isola…

Sequence HomologyAquatic ScienceDNA RibosomalFlavobacteriumMicrobiologySpecies SpecificityPhylogeneticsPseudomonasRNA Ribosomal 16SAnimalsPhylogenyEcology Evolution Behavior and SystematicsGeneticsBase SequencebiologyPseudomonasGene AmplificationRibosomal RNA16S ribosomal RNAbiology.organism_classificationFlavobacteriaceaeRestriction fragment length polymorphismGram-Negative Bacterial InfectionsSequence AlignmentPolymorphism Restriction Fragment LengthBacteriaFlavobacteriumDiseases of Aquatic Organisms
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