Effect of pulp and paper mill effluent (BKME) on physiological parameters of roach (Rutilus rutilus) infected by the digenean Rhipidocotyle fennica

Z. Jeney, E. Tellervo Valtonen, G. Jeney, E. Ilmari Jokinen

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Physiological parameters were measured after experimental infection of roach (Rutilus rutilus L.) with Rhipidocotyle fennica Gibson, Valtonen et Taskinen, 1992 (Digenea) cercariae. The fish were caught from two lakes: a eutrophic bleached kraft mill effluent (BKME)-contaminated lake and an oligotrophic unpolluted lake. The intensity of infection was followed up to 10 days post infection (p.i.) and physiological parameters indicating non-specific stress responses and the condition of fish were examined simultaneously. The mean abundance, the number of parasites per fish, of R. fennica was significantly higher in the fish from the contaminated water during the first two days p.i., probably reflecting the decreased resistance of these fish to infection. The decrease of leukocrit, as well as the increase of the activity of transaminases (GOT and GPT) in infected fish of both groups are suggestive of pathological processes caused by cercariae penetrating the fish. A significantly lower leukocrit value, as well as higher alkaline phosphatase activity and plasma chloride levels were noted in fish originating from the contaminated lake compared to those from the unpolluted lake. No significant differences were noted in haematocrit, plasma protein and calcium values between the fish from the uncontaminated and contaminated lakes, or between the infected and uninfected control fish.

Original languageEnglish
Pages (from-to)103-108
Number of pages6
JournalFolia Parasitologica
Volume49
Issue number2
Publication statusPublished - 2002

Fingerprint

pulp and paper mill effluents
Cyprinidae
Rutilus rutilus
effluents
Fishes
Lakes
fish
lakes
Cercaria
Infection
infection
cercariae
transaminases
Pathologic Processes
Transaminases
Hematocrit
blood proteins
hematocrit
Alkaline Phosphatase
alkaline phosphatase

Keywords

  • BKME
  • Fish physiology
  • Parasite infection
  • Rhipidocotyle

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Parasitology

Cite this

Effect of pulp and paper mill effluent (BKME) on physiological parameters of roach (Rutilus rutilus) infected by the digenean Rhipidocotyle fennica. / Jeney, Z.; Valtonen, E. Tellervo; Jeney, G.; Jokinen, E. Ilmari.

In: Folia Parasitologica, Vol. 49, No. 2, 2002, p. 103-108.

Research output: Contribution to journalArticle

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