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dc.contributor.authorErazo-Pagador, G.
dc.contributor.authorCruz-Lacierda, E. R.
dc.date.accessioned2014-09-08T08:08:58Z
dc.date.available2014-09-08T08:08:58Z
dc.date.issued2010
dc.identifier.citationErazo-Pagador, G., & Cruz-Lacierda, E. R. (2010). The morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippines. European Association of Fish Pathologists Bulletin, 30(2), 55-64.en
dc.identifier.issn0108-0288
dc.identifier.urihttp://hdl.handle.net/10862/2132
dc.description.abstractThe morphology of Pseudorhabdosynochus lantauensis is described. It is the most numerous parasite recovered from the gills of cultured orange-spotted grouper Epinephelus coioides in the Philippines and is smaller compared with similar species reported in Hong Kong, Malaysia and Indonesia. This species is characterized by having an overlapping dorsal bar and short copulatory organ. The life cycle of the gill monogenean is also described. One mature parasite lays at least 10-22 eggs/day. Eggs are oval (0.021-0.120 mm) with a spiral filament attached to one end. Eggs hatch into free-swimming larvae (oncomiracidia) within 2-6 d at 30°C and 30 ppt. The rate of hatching of various eggs is highly variable, that is, some eggs hatch in 2 d while others take 6 d. The oncomiracidium can attach to the grouper host within 8 h. Upon attachment, the oncomiracidium metamorphoses to an adult parasite in 4-7 d. The parasite becomes fully mature and delivers eggs in 7 d. Without a host, the life span of oncomiracidium is only 4-8 h. The life cycle is complete in 13-20 days (eggs to oncomiracidium 2-6 d; oncomiracidium to adult parasite 4-7 d; adult to fully mature and egg delivery parasite 7 d). This is the first report on the morphology and life cycle of P. lantauensis from the Philippines.en
dc.description.sponsorshipThe authors express their gratitude to Francisco Gernade, Susan Torrento and Fely Torreta for technical assistance, Prof. Kazuya Nagasawa for technical guidance; and Dr. Elena Catap and Ms. Milagros Castaños for helpful criticism and editorial comments. This study was funded by the Government of Japan, Trust Fund under the Regional Fish Disease Project.en
dc.language.isoenen
dc.publisherEuropean Association of Fish Pathologistsen
dc.rights.urihttp://creativecommons.org/licenses/by/2.5/scotland/
dc.subjectEpinephelus coioidesen
dc.subjectChinaen
dc.subjectHong Kongen
dc.subjectIndonesiaen
dc.subjectMalaysiaen
dc.subjectPhilippinesen
dc.titleThe morphology and life cycle of the gill monogenean (Pseudorhabdosynochus lantauensis) on orange-spotted grouper (Epinephelus coioides) cultured in the Philippinesen
dc.typeArticleen
dc.citation.volume30
dc.citation.issue2
dc.citation.spage55
dc.citation.epage64
dc.citation.journalTitleEuropean Association of Fish Pathologists Bulletinen
dc.subject.asfaectoparasitesen
dc.subject.asfafish cultureen
dc.subject.asfafish larvaeen
dc.subject.asfagill diseaseen
dc.subject.asfahostsen
dc.subject.asfalife cycleen
dc.subject.asfalongevityen
dc.subject.asfamarine fishen
dc.subject.asfaparasitesen
dc.subject.scientificNamePseudorhabdosynochusen


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    These papers were contributed by AQD staff to various national and international journals

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