Prevalence and pathology of ectoparasites of Mediterranean fish, reared under three different environmental and aquaculture conditions in Greece

Published: Dec 6, 2017
Mediterranean fish ectoparasites Sea bream Sea bass Sparus aurata Dicentrarchus labrax
D. di CAVE

Sea bream Spams aurata L. and sea bass Dicentrarchus labraxL. were sampled from three different locations in Greece (2 cage fish farms located in different geographic areas and a lagoon), in order to investigate the prevalence of Metazoa parasites, the intensity and the factors associated with the prevalence. In farm 1 (Eastern Greece) the prevalence of the ectoparasites was: 61.5% and 76.9% for Monogenea, 0% for Isopoda and 0% and 23% for Copepoda in sea bream and sea bass, respectively. In farm 2 the prevalence was: 13.3% and 26.3% for Monogenea, 13.7% and 20% for Isopoda and 0% and 13.6% for Copepoda in sea bream and sea bass, respectively. Lesions in the gills of Sparidae were due to monogeneans, but lesions in the skin and eyes were due to Ceratothoa oestroides larval stages causing severe pathology. Furnestinia. echeneis and Diplectanum aequans were host specific for sea bream and bass, respectively and showed persistence in all aquaculture systems. The Greek lagoon had the largest variety of parasites among the ecosystems studied, however, this variety did not significantly affect the health of infected fish. Lernanthropus kroyeri was host specific and was detected only in sea bass in both cage farms investigated.

Article Details
  • Section
  • Research Articles
Download data is not yet available.
Agro Bank of Greece (1998). Annual Report on fishing and water culture. Fishing news 207: 137-143.
Alvarez-Pellitero Ρ & Sitja-Bobadilla A (1993a). Pathology of myxosporea in marine fish culture. Diseases of Aquatic Organisms 17: 229-238.
Alvarez-Pellitero Ρ & Sitja-Bobadilla A (1993b). Ceratomyxa spp. (Protozoa: Myxosporea) infections in wild and cultured sea bass, Dicentrarchus labrax, from the Spanish Mediterranean area. Journal of Fish Biology 42: 889-901.
Athanassopoulou F (1990). A study of the Myxosporean infection of R. rutilus L. with special reference to Myxidium rhodei (Leger 1905) in the renal tissue. PhD. Thesis, University of Stirling. Stitling. Scotland.
Athanassopoulou F (1997). Sea lice and treatment problems. Fishing News 187: 74-79.
Athanassopoulou F, Prapas A. & Rodgers H. (1999a). Diseases of P.puntazzo in marine aquaculture systems in Greece and field trials of treatments of Myxidium leei n. sp. Journal of Fish Diseases, 22:215-218.
Athanassopoulou F, Sabatakou O, Groman D, Prapas A (1999b). First incidence of Rickettsia-like infections in cultured sea bass (D. labrax). In: Proceedings of the Ninth International Conference, European Association of Fish Pathologists, Rhodes, Greece, 1999: 19-24. (Poster abstract)
Athanassopoulou F, Ragias V, Tavla J, Christofilloyannis Ρ & Liberis Ν (2001a). Preliminary trials on the efficacy of invermectin against L.kroyeri Van Beneden, 1851 in cultured sea bass Dicentrarchus labrax L. Aquaculture Research (12) 33: 77.
Athanassopoulou F, Bouboulis D & Martinsen Β (2001b). In vitro treatments of deltamethrin against the isopod parasite Ceratothoa oestroides, a pathogen of seabass Dicentrarchus labrax L. Bulletin of the European Association of Fish Pathologists, 2(1): 26-29.
Athanassopoulou F, Ragias V, Roth M, Liberis Ν & Hatzinikolaou S (2002). Toxicity and pathological effects of orally and intraperitoneally administered ivermectin in sea bass D. labrax L.. Diseases of Aquatic Organisms 52(1): 69-76.
Bragoni G, Romestand B,& Thrilles J.P (1983). Parasitism by cymothoids among sea bass in rearing. Ann. Parasitol.-Hum.Comp. 58, (6): 593-609.
Bragoni G., B. Romestand, & J. P. Trilles (1984). Parasitoses a cymothoadien chez le loup, Dicentrarchus labrax (L.) en élevage. I. Écologie parasitaire dans le cas de t' étang de Diana (Haute-Corse) (Isopoda, Cymothoidae). Crustaceana 47: 44-51.
Drury R A & Wallington E.A (1980). Eds. "Carleton's histological Techniques". 5th Edition. Oxford University Press, Oxford: 520pp.
Euzet L & Noisy D (1978). Microcotyle chrysophrii Van Beneden et Hesse, 1863 (Monogenea, Microcotylidae) parasite du teleosteen Spams aurata: precisions morpho-anatomiques sur l'adulte et l'oncomiracidium. Vie Milieu, XXVIII-XXIX, (4): 569-578.
Euzet L, Combes C & Caro A (1993). A check list of Monogenea of Mediterranean fish. 2nd International Symposium on Monogenea, Montpellier, Sete, 5-8/7/93.
Le-Breton A & Marques A (1995). Occurrence of an histozoic Myxidium in two marine cultured species: Puntazzopuntazzo and Pagrus major. Bulletin of the European Association of Fish Pathologists 15 (6): 210-212.
Papapanagiotou E & Trilles J.Ρ (2001). Cymothoid parasite Ceratothoa parallela inflicts great losses on cultured gilthead sea bream Spams aurata in Greece . Diseases of Aquatic Organisms. 45: 237-239.
Papapanagiotou E, Trilles J.P & Photis G (1999). First record of Emetha audouini, a cymothoid isopod parasite from cultured sea bassi), labrax in Greece. Diseases of Aquatic Organisms. 38:235-237.
Paperna I (1980). Study oîCaligus minimus (Otto 1821) (Caligidae, Copepoda) infections of the sea bass (Dicentrarchus labrax L.) in Bardawil lagoon. Annals of Parasitology, 55: 687-706.
Papoutsoglou S (1975). Study of the Metazoa parasites of fish of Saronikos Bay. PhD Thesis, University of Patra. Papoutsoglou S, Costello M.I, Stamou E & Tziha G (1996). Environmental conditions at sea cages and ectoparasites on farmed European sea bass, D. labrax (L) and gilt head sea bream, S. aurata (L), at two farms in Greece. Aquaculture Research, 27:25-34.
Patz J.A., Graczyk Th., Geller Ν & Vittor A (2000). Effects of environmental change and emerging parasitic disease. International Journal for Parasitology, 30:12-13, 1395-1405.
Radujkovic B.M. & Euzet L (1989). Parasites des poisons marins du Montenegro: Monogens. Acta Adriatica, 30: 51-136.
Roberts R. J (ed) (1989). Fish Pathology, 2nd edn. Bailliere - Tindall, London.
Sarusic G (1999). Preliminary report of infestation by isopod Ceratothoa oestroides (Risso, 1826), in marine cultured fish. The Bulletin of the European Associaton of Fish Pathologists 19(3):110-113.
Sitja-Bobadilla A & Alvarez-Pellitero Ρ (1990). Sphaerospora testicularis sp. nov. (Myxosporea: Sphaerosporidae) in wild and cultured sea bass, Dicentrarchus labrax (L.) from the Spanish Mediterranean area. Journal of Fish Diseases 13: 193-203.
Sitja-Bobadilla A. & Alvarez-Pellitero Ρ (1993a). Pathologic effects of Sphaerospora dicentrarchi Sitja-Bobadilla and Alvarez-Peliterro, 1992 and S. testicularis Sitja-Bobadilla and Alvarez-Pellitero, 1990 (Myxosporea: Bivalvulida) parasitic in the Mediterranean sea bass Dicentrarchus labrax L. (Teleostei: Serranidae) and the cell-mediated immune reaction: a light and electron microscopy study. Parasitology Research 79: 119-129.
Sitja-Bobadilla A. & Alvarez-Pellitero Ρ (1993b). Light and electron microscopical description of Ceratomyxa labrakis n. sp. and a redescription of C. diplodae (Myxosporea: Bivalvulida) from wild and cultured sea bass Dicentrarchus labrax (L.) (Teleostei: Serranidae). Systematic Parasitology 26: 215-223.
Sitja-Bobadilla A & Alvarez-Pellitero Ρ (1993c). Population dymanics of Sphaerospora dicentrarchi Sitja-Bobadilla et Alvarez-Pellitero, 1992 and S. testicularìs Sitja-Bobadilla et Alvarez-Pellitero, 1990 (Myxosporea: Bivalvulida) infections in wild and cultured Mediterranean sea bass {Dicentrarchus labrax L.) Parasitology 106 : 39-45.
Theohari V, Ragias V & Bai Ch (1997). Identification of the copepods Lernathropus kroyerì Van Beneden, 1851 and Caligus minimus Otto, 1821 ectoparasites in the natural and farmed
population of Dicentrarchus labrax L. Geotechnical Scientific Issues 8: 29-38.
Woo P.T.K (ed) (1995). Fish Diseases and disorders: Vol.1. Protozoan & Metazoan Infections. CAB International, London.
Yamaguti S (1963). Systema Helminthum. VolI-II. Interscience Publishers, N. York, p.876.
Zar J.H (1984). Biostatistical analysis. Prentic Hall, Englewood Cliffs, NJ. pp.234.
Most read articles by the same author(s)