Effects of grazing by the oligochaete, Aeolosoma, on detrital and periphytic assemblages

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dc.contributor.authorGarland, Jay L.en
dc.contributor.committeechairBuikema, Arthur L. Jr.en
dc.contributor.committeememberHorner, Sally G.en
dc.contributor.committeememberBenfield, Ernest F.en
dc.contributor.departmentZoologyen
dc.date.accessioned2014-03-14T21:31:33Zen
dc.date.adate2013-03-12en
dc.date.available2014-03-14T21:31:33Zen
dc.date.issued1985-12-05en
dc.date.rdate2013-03-12en
dc.date.sdate2013-03-12en
dc.description.abstractThe effects of grazing by the small oligochaete, Aeolosoma, on periphyton assemblages of different algal composition and on unconditioned detritus were examined. Natural water and periphyton inoculum were collected from a littoral environment and used to construct laboratory microcosms. Changes in algal community composition, microbial respiration, and structural indices (Chlorophyll a, protein, and carbohydrate) were measured in grazed and ungrazed cultures through time in 2 to 12 d experiments. Grazed cultures after 10 to 12 d had dissimilar algal community compositions in both the early and late summer periphytic assemblages as measured by Pinkham and Pearson's Index of Similarity (B). Changes resulted from stimulation (Green coccoids, thin green filaments) and suppression (certain diatoms) of individual algal taxa, and not from the dramatic shifts in comunity composition and structure effected by macroinvertebrate grazing.en
dc.description.degreeMaster of Scienceen
dc.format.extentvii, 87 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03122013-040132en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03122013-040132/en
dc.identifier.urihttp://hdl.handle.net/10919/41558en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1985.G375.pdfen
dc.relation.isformatofOCLC# 15206428en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1985.G375en
dc.subject.lcshOligochaetaen
dc.titleEffects of grazing by the oligochaete, Aeolosoma, on detrital and periphytic assemblagesen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineZoologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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