A survey of the occurrence, distribution and incidence of infection of helminth parasites of marine and estuarine mollusca from Galveston, Texas.

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dc.acquisition-srcen_US
dc.call-noQH547.W3 GBAYen_US
dc.contract-noen_US
dc.contributor.authorWardle, W.J.en_US
dc.date.accessioned2010-02-15T17:05:12Z
dc.date.available2010-02-15T17:05:12Z
dc.date.issued1974en_US
dc.degreeen_US
dc.description346 p., Dissertationen_US
dc.description-otheren_US
dc.description.abstractThe results of a 3-year study of the helminth parasite fauna of the marine Mollusca of the Galveston Bay, Texas area are presented, including data on morphology, behavior, ecology, systematics and life cycles of the parasites, and their effects upon their molluscan hosts. Three species of Turbellaria, 34 species of digenetic Trematoda, eight species of Cestoda and one species of Nematoda were found among the 12,131 individual molluscs examined. Most of the parasites are identifiable with previously-described species, but five species of larval digenetic trematodoes appear to be significantly different from known forms and may represent new species. These include a tail-less fellodistomatid cercaria, a trichocercous fellodistomatid cercaria, a renicolid xiphidiocercaria, a cercariaeum which encysts in its own redia, and a setose cystophorous appendiculate cercaria of the family Hemiuridea. The three turbellarians appear to utilize no other host in their life cycle. Of the 34 trematode species, 18 resemble species whose adult forms are parasites of warm-blooded aquatic vertebrates and 16 appear to be related to species whose adult forms are parasites of marine fishes. The eight cestode larvae are all forms whose adult stages occur in the gut of elasmobranch fishes, and the single nematode larvae probably utilizes marine teleost fishes as hosts for the adult stage.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeGalveston Bayen_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/21689
dc.latitudeen_US
dc.locationGBIC Collectionen_US
dc.longitudeen_US
dc.notesen_US
dc.placeCollege Station, Texasen_US
dc.publisherTexas A&M University.en_US
dc.relation.ispartofseries389.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectparasitesen_US
dc.subjectTurbellaria sp.en_US
dc.subjectTrematodaen_US
dc.subjectCestodaen_US
dc.subjectNematodaen_US
dc.subjectmarine molluscsen_US
dc.subjectbrackishwater molluscsen_US
dc.subjectorganism morphologyen_US
dc.subjectecologyen_US
dc.subjectlife cycleen_US
dc.titleA survey of the occurrence, distribution and incidence of infection of helminth parasites of marine and estuarine mollusca from Galveston, Texas.en_US
dc.typeBooken_US
dc.universityen_US
dc.vol-issueen_US

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