{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/64045"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/64045","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"The effects of headwater reservoirs and channelization on invertebrate drift in Piedmont streams","abstract":"Channeled streams tended to have higher drift densities and lower benthic standing crop densities than unchanneled streams. Drift densities increased markedly below a small flood control impoundment as the result of the influx of large numbers of organisms of limnetic origin. The density of these organisms in the drift decreased rapidly as the distance downstream from the reservoir increased.","abstract_html":"Channeled streams tended to have higher drift densities and lower benthic standing crop densities than unchanneled streams. Drift densities increased markedly below a small flood control impoundment as the result of the influx of large numbers of organisms of limnetic origin. The density of these organisms in the drift decreased rapidly as the distance downstream from the reservoir increased.","abstract_has_math":false,"creators":["Keefer, Lee Curtis"],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Fisheries and Wildlife Sciences","degree_department":"Fisheries and Wildlife Sciences","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1977,"date_issued":"1977","date_published":"1977","updated_at":"2026-07-22T22:18:53Z","subjects":[],"languages":["en"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/64045","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Fisheries and Wildlife Sciences"]},{"key":"dc:creator","label":"Author","values":["Keefer, Lee Curtis"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2015-11-13T20:44:15Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2015-11-13T20:44:15Z"]},{"key":"dc:date.issued","label":"Date","values":["1977"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Fisheries and Wildlife Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/64045"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Channeled streams tended to have higher drift densities and lower benthic standing crop densities than unchanneled streams. Drift densities increased markedly below a small flood control impoundment as the result of the influx of large numbers of organisms of limnetic origin. The density of these organisms in the drift decreased rapidly as the distance downstream from the reservoir increased."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The effects of headwater reservoirs and channelization on invertebrate drift in Piedmont streams"]}]}],"canonical_facts":{"dc:contributor.department":["Fisheries and Wildlife Sciences"],"dc:creator":["Keefer, Lee Curtis"],"dc:date.accessioned":["2015-11-13T20:44:15Z"],"dc:date.available":["2015-11-13T20:44:15Z"],"dc:date.issued":["1977"],"dc:description.abstract":["Channeled streams tended to have higher drift densities and lower benthic standing crop densities than unchanneled streams. Drift densities increased markedly below a small flood control impoundment as the result of the influx of large numbers of organisms of limnetic origin. The density of these organisms in the drift decreased rapidly as the distance downstream from the reservoir increased."],"dc:description.degree":["Master of Science"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10919/64045"],"dc:language.iso":["en"],"dc:publisher":["Virginia Polytechnic Institute and State University"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["The effects of headwater reservoirs and channelization on invertebrate drift in Piedmont streams"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Fisheries and Wildlife Sciences"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:18:53Z"}