Radiodiagnostic method for studying swimbladder inflammation caused by Anguillicola crassus (Nematoda: Dracunculoidea)

A. Beregi, K. Molnár, L. Békési, C. Székely

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The nematode Anguillicola crassus appeared in Europe about 15 yr ago, and has subsequently become recognised as a cause of major pathological lesions in the swimbladder of the European eel Anguilla anguilla. The radiographic method reported in this paper showed be a useful complement to diagnostic methods that have so far been based exclusively on fish dissection. Using this method, the infection of the swimbladder and the severity of its pathological changes can be assessed in a reliable manner without causing damage to the fish. By analysing radiographs of 45 eels from Lake Balaton, 5 stages of swimbladder lesions were distinguished. The method enables the examiner to draw conclusions on the air, worm and exudate content of the swimbladder; however, data on thickening of the swimbladder wall can be obtained only indirectly. The radiograph also provides information on the air and worm content of the pneumatic duct. Results obtained by radiography showed good agreement with dissection findings. Radiographic results are compared with pathological findings obtained from fish dissections separately for each severity grade of infection.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalDiseases of Aquatic Organisms
Volume34
Issue number2
Publication statusPublished - Oct 8 1998

Fingerprint

Anguillicoloides crassus
swim bladder
dissection
inflammation
Nematoda
eel
lesion
Anguilla anguilla
fish
lesions (animal)
radiography
air
methodology
nematode
infection
diagnostic techniques
complement
damage
method
lake

Keywords

  • Anguillicola crassus
  • Eel
  • Nematode
  • Parasite
  • Radiography
  • Swimbladder

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

Radiodiagnostic method for studying swimbladder inflammation caused by Anguillicola crassus (Nematoda : Dracunculoidea). / Beregi, A.; Molnár, K.; Békési, L.; Székely, C.

In: Diseases of Aquatic Organisms, Vol. 34, No. 2, 08.10.1998, p. 155-160.

Research output: Contribution to journalArticle

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