Effect of parasitism by the pyramidellid gastropod Boonea impressa on the net productivity of oysters (Crassostrea virginica).

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dc.acquisition-srcen_US
dc.call-noAcc# 1396en_US
dc.contract-noen_US
dc.contributor.authorWhite, M.E.en_US
dc.contributor.authorPowell, E.N.en_US
dc.contributor.authorRay, S.M.en_US
dc.contributor.otherEstuarine Coastal and Shelf Science.en_US
dc.date.accessioned2010-02-15T16:49:59Z
dc.date.available2010-02-15T16:49:59Z
dc.date.issued1988en_US
dc.degreeen_US
dc.descriptionp. 359-377.en_US
dc.description-otheren_US
dc.description.abstractThe effect of an ectoparasitic gastropod, Boonea (=Odostomia) impressa, on the energy budget of its host, the American oyster, Crassostrea virginica, was examined. A model was developed from laboratory and field data, as well as from equations developed by Powell and Stanton (1985). The model predicted that net productivity by large (7 cm length) oysters parasitized by 10 and 30 large (6 mm length) snails would reduce by 21% and 63%, respectively. In contrast, net productivity in small (3 cm length) would be reduced 25% by only 3 snails. Small oysters would have a negative energy when parasitized by 10 snails. The predicted reduction in growth was compared with measured growth in small and large oysters parasitized at abundances typical in Texas oyster reefs. Control oysters (no parasites) gained more shell weight than parasitized oysters. In four-week experiments conducted during the spring and fall, small control oysters gained 86% and 75% more weight than highly parasitized oysters. Large control oysters had 29% and 88% more shell deposition. Snail parasitism produced 75% mortality in small, highly parasitized oysters in the summer. In typical field populations in Texas bays, a minimal estimate of 4-12% of the energy otherwise available to the oyster for growth and reproduction is consumed by Boonea impressa.en_US
dc.description.urihttp://gbic.tamug.edu/request.htmen_US
dc.geo-codeTexas coasten_US
dc.historyen_US
dc.identifier.urihttp://hdl.handle.net/1969.3/19145
dc.latitudeen_US
dc.locationGBIC Collection file roomen_US
dc.longitudeen_US
dc.notesen_US
dc.placeen_US
dc.publisheren_US
dc.relation.ispartofseries1396.00en_US
dc.relation.urien_US
dc.scaleen_US
dc.seriesen_US
dc.subjectparasitesen_US
dc.subjectparasitismen_US
dc.subjectmarine gastropodsen_US
dc.subjectBoonea impressaen_US
dc.subjectoystersen_US
dc.subjectCrassostrea virginicaen_US
dc.subjectgrowthen_US
dc.subjectbiological productionen_US
dc.titleEffect of parasitism by the pyramidellid gastropod Boonea impressa on the net productivity of oysters (Crassostrea virginica).en_US
dc.typeArticleen_US
dc.universityen_US
dc.vol-issue26en_US

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