World's Best Scientists 2026 revealed!
E. Tellervo Valtonen

E. Tellervo Valtonen

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Animal Science and Veterinary
Finland
2025

Research.com Recognitions

  • 2025 - Research.com Animal Science and Veterinary in Finland Leader Award
  • 2023 - Research.com Animal Science and Veterinary in Finland Leader Award
  • 2022 - Research.com Animal Science and Veterinary in Finland Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Ecology
  • Genus
  • Predation

E. Tellervo Valtonen focuses on Ecology, Fish farming, Trematoda, Zoology and Predation. His Ecology study frequently links to adjacent areas such as Perch. His Perch research integrates issues from Animal ecology, Rutilus, Genus and Intermediate host.

His Fish farming research is multidisciplinary, incorporating perspectives in Transmission and Ichthyophthirius multifiliis. His research in Trematoda intersects with topics in Gastropoda, Lymnaea stagnalis, Snail and Outbreak. His Predation research includes themes of Escape response, Host and Adaptation.

His most cited work include:

  • Increasing water temperature and disease risks in aquatic systems: Climate change increases the risk of some, but not all, diseases (137 citations)
  • Parasite-induced change in host behaviour and susceptibility to predation in an eye fluke–fish interaction (137 citations)
  • Manipulation of fish host by eye flukes in relation to cataract formation and parasite infectivity (101 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Ecology, Zoology, Host, Intermediate host and Trematoda. His Ecology study incorporates themes from Helminths, Rutilus and Perch. His Zoology research integrates issues from Salmo, Brown trout and Coregonus lavaretus.

The various areas that E. Tellervo Valtonen examines in his Intermediate host study include Pike, Parasitic castration, Cestoda, Longevity and Pisidium amnicum. E. Tellervo Valtonen has researched Trematoda in several fields, including Esox, Parasitism and Interspecific competition. His work carried out in the field of Predation brings together such families of science as Escape response, Phoca and Adaptation.

He most often published in these fields:

  • Ecology (71.25%)
  • Zoology (50.00%)
  • Host (22.50%)

What were the highlights of his more recent work (between 2008-2018)?

  • Ecology (71.25%)
  • Zoology (50.00%)
  • Trematoda (17.50%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Ecology, Zoology, Trematoda, Virulence and Host. His study in Ecology is interdisciplinary in nature, drawing from both Helminths and Aquatic animal. His study in the field of Acanthocephala also crosses realms of Alloherpesviridae.

His work on Diplostomum spathaceum as part of general Trematoda study is frequently linked to Fish eye, bridging the gap between disciplines. The study incorporates disciplines such as Rutilus, Competition, Community and Interspecific competition in addition to Host. His Flavobacterium columnare research includes elements of Flavobacterium, Fish farming and Pathogen, Microbiology.

Between 2008 and 2018, his most popular works were:

  • Increasing water temperature and disease risks in aquatic systems: Climate change increases the risk of some, but not all, diseases (137 citations)
  • Saprophytism of a fish pathogen as a transmission strategy. (50 citations)
  • The efficacy of two immunostimulants against Flavobacterium columnare infection in juvenile rainbow trout (Oncorhynchus mykiss). (45 citations)

In his most recent research, the most cited papers focused on:

  • Ecology
  • Genus
  • Parasitism

E. Tellervo Valtonen mainly investigates Virulence, Flavobacterium columnare, Fish farming, Microbiology and Rainbow trout. His research integrates issues of Trematoda, Diplostomum spathaceum, Genotype, Infectivity and Genetic variation in his study of Virulence. His work deals with themes such as Transmission and Ecology, which intersect with Fish farming.

His Transmission research is multidisciplinary, incorporating elements of Incidence, Disease, Aquatic animal, Aquatic ecosystem and Ichthyophthirius multifiliis. The Microbiology study combines topics in areas such as Flavobacterium, Virulence factor, Agar and Phase variation. His Rainbow trout research incorporates elements of Pathogen, Antibiotics, Freshwater fish, Innate immune system and Bacterial Shedding.

Best Publications

  • Intensive fish farming and the evolution of pathogen virulence: the case of columnaris disease in Finland

    K. Pulkkinen;L.-R. Suomalainen;A. F. Read;D. Ebert

  • Increasing water temperature and disease risks in aquatic systems: Climate change increases the risk of some, but not all, diseases

    Anssi Karvonen;Päivi Rintamäki;Jukka Jokela;E. Tellervo Valtonen

  • Parasite-induced change in host behaviour and susceptibility to predation in an eye fluke–fish interaction

    Otto Seppälä;Anssi Karvonen;E. Tellervo Valtonen

  • Eutrophication, pollution and fragmentation: effects on parasite communities in roach (<i>Rutilus rutilus</i>) and perch (<i>Perca fluviatilis</i>) in four lakes in central Finland

    Unknown

  • A link between ectoparasite infection and susceptibility to bacterial disease in rainbow trout.

    M. Bandilla;E.T. Valtonen;L.-R. Suomalainen;P.J. Aphalo

  • Manipulation of fish host by eye flukes in relation to cataract formation and parasite infectivity

    Otto Seppälä;Anssi Karvonen;E. Tellervo Valtonen

  • Influence of rearing conditions on Flavobacterium columnare infection of rainbow trout, Oncorhynchus mykiss (Walbaum).

    Suomalainen Lr;Tiirola Ma;Valtonen Et

  • Eye fluke-induced cataract formation in fish: quantitative analysis using an ophthalmological microscope.

    A. Karvonen;O. Seppälä;E. T. Valtonen

  • Aspects of the biology of diplostomid metacercarial (Digenea) populations occurring in fishes in different localities of northern Finland

    E. Tellervo Valtonen;David I. Gibson

  • Parasite resistance and avoidance behaviour in preventing eye fluke infections in fish.

    A. Karvonen;O. Seppälä;E. T. Valtonen

  • The predictability of helminth community structure in space: a comparison of fish populations from adjacent lakes.

    Robert Poulin;E.Tellervo Valtonen

  • Fish population size, and not density, as the determining factor of parasite infection: a case study.

    A M Bagge;Robert Poulin;E T Valtonen

  • Dactylogyrids on the gills of roach in central Finland: features of infection and species composition.

    M. Koskivaara;E.T. Valtonen;M. Prost

  • Transmission, infectivity and survival of Diplostomum spathaceum cercariae.

    A. Karvonen;S. Paukku;E. T. Valtonen;P. J. Hudson

  • Nested assemblages resulting from host size variation: the case of endoparasite communities in fish hosts.

    Robert Poulin;E.Tellervo Valtonen

  • The structure of parasite component communities in brackish water fishes of the northeastern Baltic Sea.

    E. T. Valtonen;K. Pulkkinen;R. Poulin;M. Julkunen

  • Shoaling behaviour of fish under parasitism and predation risk

    Otto Seppälä;Anssi Karvonen;E. Tellervo Valtonen

  • Do macrophage centres in freshwater fishes reflect the differences in water quality

    Ahti Haaparanta;E.Tellervo Valtonen;Rudolf Hoffmann;John Holmes

  • Vertebrate diets derived from trophically transmitted fish parasites in the Bothnian Bay

    E. T. Valtonen;David J. Marcogliese;Markku Julkunen

  • Saprophytism of a fish pathogen as a transmission strategy.

    Heidi M.T. Kunttu;E. Tellervo Valtonen;E. Ilmari Jokinen;Lotta-Riina Suomalainen

  • Epizootiology of protozoans in farmed salmonids at northern latitudes

    Päivi Rintamäki-Kinnunen;E.Tellervo Valtonen

  • Age-, size-, and sex-specific infection of Anodonta piscinalis (Bivalvia: Unionidae) with Rhipidocotyle fennica (Digenea: Bucephalidae) and its influence on host reproduction

    Jouni Taskinen;E. Tellervo Valtonen

  • Dynamics of Diplostomum spathaceum infection in snail hosts at a fish farm

    Anssi Karvonen;Miia Savolainen;Otto Seppälä;E. Tellervo Valtonen

  • Studies on bucephalid digeneans parasitising molluscs and fishes in Finland I. Ecological data and experimental studies

    Jouni Taskinen;E. Tellervo Valtonen;David I. Gibson

  • Treatment of ichthyophthiriasis after malachite green. I. Concrete tanks at salmonid farms.

    Päivi Rintamäki-Kinnunen;Mika Rahkonen;Anna-Liisa Mannermaa-Keränen;Lotta-Riina Suomalainen

  • Transmission dynamics of a trematode parasite: exposure, acquired resistance and parasite aggregation

    Anssi Karvonen;Peter J. Hudson;Peter J. Hudson;Otto Seppälä;E. Tellervo Valtonen

  • Impaired crypsis of fish infected with a trophically transmitted parasite

    Otto Seppälä;Anssi Karvonen;E. Tellervo Valtonen

  • Host manipulation by parasites in the world of dead-end predators: adaptation to enhance transmission?

    Otto Seppälä;Otto Seppälä;E. Tellervo Valtonen;Daniel P Benesh

  • Resistance against eye flukes: naïve versus previously infected fish.

    Anssi Karvonen;Satu Paukku;Otto Seppälä;E. Tellervo Valtonen

  • Environment may be the source of Flavobacterium columnare outbreaks at fish farms

    Heidi M. T. Kunttu;Lotta-Riina Sundberg;Katja Pulkkinen;E. Tellervo Valtonen

  • The efficacy of two immunostimulants against Flavobacterium columnare infection in juvenile rainbow trout (Oncorhynchus mykiss).

    Heidi M.T. Kunttu;E.Tellervo Valtonen;Lotta-Riina Suomalainen;Jouni Vielma

Frequent Co-Authors

Anssi Karvonen
Anssi Karvonen University of Jyväskylä
Otto Seppälä
Otto Seppälä University of Innsbruck
David I. Gibson
David I. Gibson Natural History Museum
Peter J. Hudson
Peter J. Hudson Pennsylvania State University
Christina Sommerville
Christina Sommerville University of Stirling

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