Estimation of seasonality and prevalence of the isopod parasite Ceratothoa oestroides, Risso, 1836, in Greece

PDF
Published: Nov 17, 2017
DOI: https://doi.org/10.12681/jhvms.14911
Keywords:
isopod parasites Ceratothoa oestroides sea bream sea bas
St. VAGIANOU (ΣΤ. ΒΑΓΙΑΝΟΥ)
Laboratory of Ichthyology and Aquatic Animal Health, Faculty of Veterìnary Medicine, University of Thessaly
C. BITCHAVA (Κ. ΜΠΙΤΧΑΒΑ)
Laboratory of Ichthyology and Aquatic Animal Health, Faculty of Veterìnary Medicine, University of Thessaly
M. YAGNISI (Μ. ΓΙΑΓΝΙΣΗ)
Laboratory of Ichthyology and Aquatic Animal Health, Faculty of Veterìnary Medicine, University of Thessaly
F. ATHANASSOPOULOU (Φ. ΑΘΑΝΑΣΟΠΟΥΛΟΥ)
Laboratory of Ichthyology and Aquatic Animal Health, Faculty of Veterìnary Medicine, University of Thessaly
Abstract

The aim of the present study was the investigation of the seasonality of isopod parasite Ceratothoa oestroides (Risso, 1836), in two different farms, in the region of Chios and in the region of Astakos. In each area, in total 80 sea bass and 80 gilthead sea breams in each sampling were examined. One seasonal sampling in each farm for the two species was taken and four samplings were performed in a year for the two species. The samples were collected by the same cages and their medium weights as well as themedium temperatures per stockfarming were recorded. In gilthead sea bream the isopod parasite Ceratothoa oestroides was found only in the region of Astakos at a prevalence of 31,2%, which presented a maximum value during the summer months. In sea bass the parasite was found in the two regions (prevalence 33,75% and 55,25%, respectively). It was observed that the rate of pollution in Astakos was higher in spring, whereas in Chios the prevalence was higher in summer. Finally, the young individuals of stage of puliiII parasitise were what caused serious alterations and finally the death of mainly young fishes of gilthead sea bream (Spams aurata)and bassfish (Dicentrarchus labrax). The adults hosts appearred that they were not influenced particularly by the presence of parasitises.

Article Details
  • Section
  • Research Articles

Authors who publish with this journal agree to the following terms:

· Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution Non-Commercial License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

· Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g. post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

· Authors are permitted and encouraged to post their work online (preferably in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.

Downloads
Download data is not yet available.
References
Alvarado V, Schafer J.W, Enriquez R, Monras M (1990). Salmonicultura en Chile, estado actual, proyecciones y estado sanitario. Medio Ambiente 11:9-14.
Athanassopoulou F (1990). A study of the Myxosporean infections of R. rutilus L. with special reference to Myxidium rhodei Leger, 1905 in the renal tissue. Ph.D. thesis, University of Stirling, Stirling.
Athanassopoulou F, Bouboulis D, Martinsen Β (2001). In vitro treatments of deltamethrin against the isopod parasite Ceratothoa oestroides, a pathogen of seabass (D. labrax. L). The Bulletin of the European Associaton of Fish Pathologists 21(1) 26-29.
Bragoni G, Romestand Β and Trilles JP (1983). Parasitism by cymothoids among sea-bass (Dicentrarchus labrax Linnaeus) in rearing. II. Parasitic ecophysiology in Diana Pond, Corsica. Annales de Parasitologie Humaine et Comparée 58,593-609.
Bragoni G, Romestand Β and Trilles JP (1984). Parasitoses a cymothoadien chez le loup, Dicentrarchus labrax (Linnaeus, 1758) en élevage. I. Ecologie parasitaire dans le cas de l'Etang de Diana (Haute Corse) (Isopoda, Cymothoidae). Crustaceana 47,44-5Lof sea bass Dicentrarchus labrax L. Bull Eur Ass Fish Pathol., 21(1):26-29.
Bush AO, Lafferty KD, Lotz JM, Shostak AW (1997). Parasitology meets ecology on its own terms: Margolis et al. revisited. Journal of Parasitology 83:575-583.
Drury RA & Wallington EA (1980) Carleton's Histological Techniques. Oxford University Press, Oxford, 520pp.
Horton Τ & Okamura Β (2001a). Cymothoid isopod parasitism: an emerging disease of Mediterranean mariculture. 10th Int. Conf.of the EAFP: "Diseases of Fish and Shellfish". Trinity College, Dublin, 9-14 September.
Horton Τ & Okamura Β (2001b). Cymothoid isopod parasites in aquaculture: a review and case study of a Turkish sea bass (Dicentrarchus labrax) and sea bream (Sparus aurata) farm. Dis Aquat Org, 46:181-188.
Inostroza R, Sievers G, Roa J, Aguirrebena R (1993). Prevalencia e intensidad de infeccion estacional por Ceratothoa gaudichaudii en salmones Salmo salar cultivados en agua de mar en el sur de Chile. Arch Med Vet 25 :173-179.
Papapanagiotou E.P, Trilles J & Photis G (1999). First record of Emetha andouini, a cymothoid parasite, from cultured sea bass Dicentrarchus labrax in Greece. Dis. Aq. Org. 38 : 235-237.
Papoutsoglou S, Costello MI, Stamou E, Tziha G (1996). Environmental conditions at sea cages and ectoparasites on farmed European sea bass, D labrax (L) and gill head sea bream, S. aurata L, at two farms in Greece. Aquaculture Research, 27: 25:34.
Roa J (1992). Contribucion al estudio del isopodo Ceratothoa gaudichaudii corno parasito de salmones (Salmo salar) cultivados en agua de mar en dos centros de cultivo de la Provincia de Llanquihue. Thesis, M. V. Universidad Austral de Chile, Escuela de Medicina Veterinaria, Valdivia.
Roberts RJ (1989). Fish pathology. Bailliere, Tindall, London.
Sarusic G (1999). Preliminary report of infestation by isopod Ceratothoa oestroides (Risso, 1826), in marine cultured fish. Bull Eur Ass Fish Pathol, 19(3): 110-112.
Sievers G, Lobos C, Inostroza R, Ernst S (1996). The effect of the isopod parasite Ceratothoa gaudichaudii on the body weight of farmed Salmo salar in southern Chile. Aquaculture 143:1-6.
Yamaguti S (1963). Parasitic Copepoda and Branchiura of Fishes. Interscience, New York.
Most read articles by the same author(s)