Asian pangasiids - an emerging problem for European inland waters? Systematic and parasitological aspects

• Autorzy: Wiecaszek B , Keszka S. , Sobecka E. , Boeger W.A.
• Języki publikacji: EN

Abstrakty

EN

Background. Asian pangasiids (Actinopterygii: Siluriformes: Pangasiidae), commonly referred to as “panga”, have recently became an important item on the European fish markets. The fish are currently imported from south-east Asia but the growing consumers’ demand is likely to motivate European fish growers to culture the “panga” locally. This in turn could bring about unforeseeable consequences for the aquatic environment. The presently reported study provides the first record of a pangasiid fish (two specimens) from the European natural waters. We attempted to identify the fish through complex morphometric procedures and to study all their parasites, thus determining their potential threat for the environment. Materials and Methods. Two specimens of pangasiid fish were captured in a pond, in the city of Szczecin, Poland. The fish were examined following procedures commonly accepted in morphological studies yielding detailed measurements. The key structures were described and illustrated (e.g., the shape of dentition on both the vomerine and palatine plates). The measurements were taken with an electronic calliper and a dissecting microscope (Nikon SMZ 1000), coupled with the Lucia Measurement System. Additionally, during necropsy, selected organs were checked for the presence of parasites. Results. One of the fish specimens hosted the monogenoid parasite, Thaparocleidus caecus, that has never been found in Europe. Metric and meristic characters of fish studied, as well as the presence of monogenoid T. caecus suggest that the fish found were representatives of Pangasianodon hypophthalmus, however, some features, especially those related to the ratio between fins and body or total length, differ markedly from the species description. Comparative analysis suggested that the two specimens collected in Szczecin are hybrids, most likely of P. hypophthalmus with other species, of unknown origin, presumably imported from Thailand. Conclusion. The specific identity of pangasiids imported alive to Europe should be monitored in the future. Additional genetic studies are needed. The monogenoid parasite found on the fish studied poses no threat to the native ichthyofauna (because of its very narrow host-specificity).

Słowa kluczowe

PL

fish; pangasiid catfish; Asian pangasiid; inland water; invasive species; Pangasianodon hypophthalmus; Pangasius bocourti; Monogenoidea; hybrid; parasite; Thaparocleidus caecus; Poland; Szczecin city; monogenoid parasite

• Wydawca: -
• Czasopismo: Acta Ichthyologica et Piscatoria
• Rocznik: 2009
• Tom: 39
• Numer: 2
• Opis fizyczny: p.131-138,fig.,ref.

Twórcy

autor

Wiecaszek B

• Division of Fish Systematics, West Pomeranian University of Technology, Kazimierza Krolewicza 4, 71-550 Szczecin, Poland

autor

Keszka S.

autor

Sobecka E.

autor

Boeger W.A.

Bibliografia

• Boeger W., Piasecki W., Sobecka E. 2002. Neotropical Monogenoidea. 44. Mymarothecium viatorum sp.n. (Ancyrocephalinae) from the gills of Piaractus brachypomus (Serrasalmidae, Teleostei), captured in a warm-water canal of a power plant in Szczecin, Poland. Acta Ichthyologica et Piscatoria 32: 157–161.
• Gusev A.V. 1978. Monogenoidea presnovodnyh ryb. Principy sistematiki, analiz mirovoj fauny i ego evolucii. [Monogenoidea of freshwater fishes. Principles of systematics, analysis of world fauna and its evolution.] Parasitologičeskij Sbornik 38: 96–198. [In Russian.]
• Gusev A.V. 1996. Issledovaniâ fauny roda Dactylogyrus Evrasii. [Studies on the Dactylogyrus fauna of Eurasia.] Doklady Akademii Nauk SSSR 167: 950–952. [In Russian.]
• Gustiano R. 2003. Taxonomy and phylogeny of Pangasiidae catfishes from Asia. Ph.D Thesis KU Leuven, Belgium.
• Gustiano R. 2004. Biometric analysis of the artificial hybridization between Pangasius djambal Bleeker, 1846 and Pangasianodon hypophthalmus Sauvage, 1878. Indian Journal of Agricultural Sciences 5: 70–74.
• Hung L.T., Lazard J., Mariojouls C., Moreau Y. 2003. Comparison of starch utilization in fingerlings of two Asian catfishes from the Mekong River (Pangasius bocourti Sauvage, 1880, Pangasius hypophthalmus Sauvage, 1878). Aquaculture Nutrition 9: 215–222. DOI: 10.1046/j.1365-2095.2003.00244.x.
• Kennedy C.R. 1975. The distribution of some crustaceans fish parasites in Britain in relation to the introduction and movement of freshwater fish. Journal of the Institute of Fisheries Management 6: 36–41.
• Lerssutthichawal T., Lim S.L.H., Chinabut S. 1999. Monogeneans from the pangasiid fishes of Thailand. AAHRI Newsletter 8 (1): 1–5.
• Lim S.L.H. 1990. Silurodiscoides Gussev, 1961 (Monogenea: Ancyrocephalidae) from Pangasius sutchi Fowler, 1931 (Pangasiidae) cultured in peninsular Malaysia. Raffles Bulletin of Zoology 38: 55–63.
• Lim S.L.H. 1996. Thaparocleidus Jain, 1952, the senior synonym of Silurodiscoides Gussev, 1976 (Monogenea: Ancylodiscoidinae). Systematic Parasitology 35: 207–215. DOI: 10.1007/BF00009640.
• Lim S.L.H. 1998. Diversity of monogeneans in Southeast Asia. International Journal for Parasitology 28: 1495–1515. DOI: 10.1016/S0020-7519(98)00061-7.
• McGee M.V. 2005. Aquaculture of the Asian catfish Pangasius hypophthalmus in Puerto Rico. Caribe Fisheries Inc. Lajas, Puerto Rico. http://www.caribefish.com/portal/index.php? (removed by publisher).
• Mizelle J.D., Kritsky D.C. 1969. Studies on Monogenetic Trematodes. XXXIX. Exotic species of Monopisthocotylea with the proposal of Archidiplectanum gen. n. and Longihaptor gen. n. The American Midland Naturalist 81: 370–386.
• Pimentel D., Lach L., Zuniga R., Morrison D. 2000. Environmental and economic costs of nonindigenous species in the United States. BioScience 50: 53–65. DOI: 10.1641/0006-3568(2000)050[0053:EAECON]2.3.CO;2.
• Pouyaud L., Teugels G, Gustiano R., Legendre M. 2000. Contribution to the phylogeny of pangasiid catfishes based on allozymes and mitochondrial DNA. Journal of Fish Biology 56: 1509–1538. DOI: 10.1111/j.1095-8649.2000.tb02161.x.
• Roberts T.R., Vidthayanon C. 1991. Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species. Proceedings of the Academy of Natural Sciences of Philadelphia 143: 97–144.
• Teugels G. 1984. The nomenclature of African Clarias species used in aquaculture. Aquaculture 38: 373–374. DOI: 10.1016/0044-8486(84)90342-9.
• Varadi L. 2008. Species diversification. Upcoming species. Eastern Baltic Aquaculture Conference: “European Fisheries Fund and opportunities for the Development of Eastern Baltic Aquaculture”. 6–7 May 2008; Riga, Latvia. www.eurofish.dk/filedownload.php?fileId=315.
• Więcaszek B., Keszka S., Antoszek J. 2007. Pirapitinga (Piaractus brachypomus Cuvier, 1818)—an alien species in the natural water basins within the Szczecin city area (NW Poland). P. 20. In: Book of Abstracts. XII European Congress of Ichthyology, 9–13 September 2007, Dubrovnik, Croatia.
• Williamson M.H. 1996. Biological invasions. Populations and community biology series. Vol. 15. Chapman and Hall, London.