dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAfonso, AAD
dc.creatorHenry, R.
dc.date2014-05-20T13:53:44Z
dc.date2016-10-25T17:04:08Z
dc.date2014-05-20T13:53:44Z
dc.date2016-10-25T17:04:08Z
dc.date2002-08-01
dc.date.accessioned2017-04-05T21:09:18Z
dc.date.available2017-04-05T21:09:18Z
dc.identifierHydrobiologia. Dordrecht: Springer, v. 482, n. 1-3, p. 161-166, 2002.
dc.identifier0018-8158
dc.identifierhttp://hdl.handle.net/11449/19186
dc.identifierhttp://acervodigital.unesp.br/handle/11449/19186
dc.identifier10.1023/A:1021220600302
dc.identifierWOS:000179387500015
dc.identifierhttp://dx.doi.org/10.1023/A:1021220600302
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/865118
dc.descriptionRetention of particulate organic matter was investigated over a range of water discharges in pool and riffle zones of a tropical stream (Itauna Stream, São Paulo, Brazil). A closed-system leaf release and capture method was used to quantify leaf retention in a 50-m reach of the stream. Instantaneous retention rates (k) were calculated by a negative exponentialmodel and specific retention rates (ke) computed for each 1m interval. The mean k was 0.0161 +/- 0.0101 (S.E.) and ranged from 0.005 to 0.036 during the study period. This suggests a low retention of particulate matter. The evidence provided by this study shows that there was a relationship between retention and discharge. At low discharges, greater percentages of leaves were retained in a 3-h period while high discharges resulted in low retention percentages within the studied reach. In the Itauna Stream, no significant difference (p < 0.05) was found between the ke values of pool and riffle zones.
dc.languageeng
dc.publisherSpringer
dc.relationHydrobiologia
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjecttropical stream
dc.subjectorganic matter
dc.subjecttransport
dc.subjectretention
dc.subjectretention rate
dc.subjectdischarge
dc.titleRetention of particulate organic matter in a tropical headstream
dc.typeOtro


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