Morphological changes of parasite of cyprinid fishes Paradiplozoon homoion (Monogenea)

PEČÍNKOVÁ, Martina, Božena KOUBKOVÁ and Milan GELNAR. Morphological changes of parasite of cyprinid fishes Paradiplozoon homoion (Monogenea). In IX. Česká ichtyologická konference. Vodňany, Česká republika: Jihočeská univerzita v Českých Budějovicích, Výzkumný ústav rybářský a hydrobiologický ve Vodňanech, 2006, p. 104.

Basic information

• Original name: Morphological changes of parasite of cyprinid fishes Paradiplozoon homoion (Monogenea)
• Name in Czech: Změny v morfologii parazita kaprovitých ryb Paradiplozoon homoion (Monogenea)
• Name (in English): Morphological changes of parasite of cyprinid fishes Paradiplozoon homoion (Monogenea)
• Authors: PEČÍNKOVÁ, Martina (203 Czech Republic, guarantor), Božena KOUBKOVÁ (203 Czech Republic) and Milan GELNAR (203 Czech Republic).
• Edition: Vodňany, Česká republika, IX. Česká ichtyologická konference, p. 104-104, 2006.
• Publisher: Jihočeská univerzita v Českých Budějovicích, Výzkumný ústav rybářský a hydrobiologický ve Vodňanech

Other information

• Original language: Czech
• Type of outcome: Proceedings paper
• Field of Study: 10600 1.6 Biological sciences
• Country of publisher: Czech Republic
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/06:00016156
• Organization unit: Faculty of Science
• Keywords in English: morphology;Paradiplozoon homoion
• Tags: morphology, Paradiplozoon homoion

Abstract

Gudgeon (Gobio gobio; Cyprinidae) were collected monthly from the Vlara stream (Czech Republic) during 2004 and examined for the presence of the metazoan parasites. The locality is downstream of the Slavičín town and the military factory outlet.The monogenean ectoparasites Gyrodactylus spp., Dactylogyrus cryptomeres and Paradiplozoon homoion were abundant species. P. homoion is fish ectoparasites with a direct life cycle, where the adults live attached to fish gills using two haptors with four pairs of clamps and a pair of central hooks. There are no reports about mass death of fish host caused by this type of parasite. In our study, over 26% of P. homoion showed abnormalities, indicating either a stressful environment or that the quality of the fish host was suboptimal for parasite development. The abnormalities of diplozoids are categorized into seven types and are related to the attachment apparatus. There was seasonal effect on P. homoion abundance being the lowest during from April to July (from 2.4 to 3.0 parasites per host) and the highest in October (6.65 parasites per host). However, the proportion of parasites with abnormalities did not vary among seasons. It is assumed that abnormalities are mainly caused by environmental pollution.

Abstract (in English)

Gudgeon (Gobio gobio; Cyprinidae) were collected monthly from the Vlara stream (Czech Republic) during 2004 and examined for the presence of the metazoan parasites. The locality is downstream of the Slavičín town and the military factory outlet.The monogenean ectoparasites Gyrodactylus spp., Dactylogyrus cryptomeres and Paradiplozoon homoion were abundant species. P. homoion is fish ectoparasites with a direct life cycle, where the adults live attached to fish gills using two haptors with four pairs of clamps and a pair of central hooks. There are no reports about mass death of fish host caused by this type of parasite. In our study, over 26% of P. homoion showed abnormalities, indicating either a stressful environment or that the quality of the fish host was suboptimal for parasite development. The abnormalities of diplozoids are categorized into seven types and are related to the attachment apparatus. There was seasonal effect on P. homoion abundance being the lowest during from April to July (from 2.4 to 3.0 parasites per host) and the highest in October (6.65 parasites per host). However, the proportion of parasites with abnormalities did not vary among seasons. It is assumed that abnormalities are mainly caused by environmental pollution.

Links

• GA524/04/1115, research and development project: Name: Fluktuační asymetrie rybích parazitů: nový přístup ke stanovení environmentálního stresu vodního ekosystému?

Investor: Czech Science Foundation, Fluctuating asymmetry in fish parasites: a new approach to assess environmental changes of aquatic ecosystem?

• MSM0021622416, plan (intention): Name: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministry of Education, Youth and Sports of the CR, Diversity of Biotic Communities and Populations: Causal Analysis of variation in space and time