Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000200299 |
Resumo: | Some aquatic plants have fast metabolism and growth, even at sub-optimal conditions, and become dominant in lentic environments such as large reservoirs, altering the nutrient cycle and impairing their environmental quality. There is great need in the knowledge impact processes of invasive species in aquatic environments, among the major, those related to the decomposition. This study evaluated the anaerobic decomposition of invasive submerged macrophytes Egeria densa Planch, native, and Hydrilla verticillata (L.f.) Royle, exotic in Porto Primavera and Jupiá reservoirs, Paraná basin. We evaluated the decay of organic matter, humification degree of the leached material, electrical conductivity and pH of the decomposition process. Mathematical models were utilised to describe the decomposition patterns over time. Both species showed the same heterogeneous pattern of decay of organic matter and carbon mineralisation. The models of carbon mineralisation, compared with the experimentally obtained data presented were adequate. Both species show no significant differences in the decomposition processes. Incubations of both species presented rapid t ½ for POC mineralisation and low DOC mineralisation. |
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Brazilian Journal of Biology |
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Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirsmineralisationmathematical modelslentic systemenvironmental impactSome aquatic plants have fast metabolism and growth, even at sub-optimal conditions, and become dominant in lentic environments such as large reservoirs, altering the nutrient cycle and impairing their environmental quality. There is great need in the knowledge impact processes of invasive species in aquatic environments, among the major, those related to the decomposition. This study evaluated the anaerobic decomposition of invasive submerged macrophytes Egeria densa Planch, native, and Hydrilla verticillata (L.f.) Royle, exotic in Porto Primavera and Jupiá reservoirs, Paraná basin. We evaluated the decay of organic matter, humification degree of the leached material, electrical conductivity and pH of the decomposition process. Mathematical models were utilised to describe the decomposition patterns over time. Both species showed the same heterogeneous pattern of decay of organic matter and carbon mineralisation. The models of carbon mineralisation, compared with the experimentally obtained data presented were adequate. Both species show no significant differences in the decomposition processes. Incubations of both species presented rapid t ½ for POC mineralisation and low DOC mineralisation.Instituto Internacional de Ecologia2013-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000200299Brazilian Journal of Biology v.73 n.2 2013reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842013000200010info:eu-repo/semantics/openAccessChiba de Castro,WACunha-Santino,MBBianchini Junior,Ieng2015-10-27T00:00:00Zoai:scielo:S1519-69842013000200299Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2015-10-27T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false |
dc.title.none.fl_str_mv |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
title |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
spellingShingle |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs Chiba de Castro,WA mineralisation mathematical models lentic system environmental impact |
title_short |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
title_full |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
title_fullStr |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
title_full_unstemmed |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
title_sort |
Anaerobic decomposition of a native and an exotic submersed macrophyte in two tropical reservoirs |
author |
Chiba de Castro,WA |
author_facet |
Chiba de Castro,WA Cunha-Santino,MB Bianchini Junior,I |
author_role |
author |
author2 |
Cunha-Santino,MB Bianchini Junior,I |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Chiba de Castro,WA Cunha-Santino,MB Bianchini Junior,I |
dc.subject.por.fl_str_mv |
mineralisation mathematical models lentic system environmental impact |
topic |
mineralisation mathematical models lentic system environmental impact |
description |
Some aquatic plants have fast metabolism and growth, even at sub-optimal conditions, and become dominant in lentic environments such as large reservoirs, altering the nutrient cycle and impairing their environmental quality. There is great need in the knowledge impact processes of invasive species in aquatic environments, among the major, those related to the decomposition. This study evaluated the anaerobic decomposition of invasive submerged macrophytes Egeria densa Planch, native, and Hydrilla verticillata (L.f.) Royle, exotic in Porto Primavera and Jupiá reservoirs, Paraná basin. We evaluated the decay of organic matter, humification degree of the leached material, electrical conductivity and pH of the decomposition process. Mathematical models were utilised to describe the decomposition patterns over time. Both species showed the same heterogeneous pattern of decay of organic matter and carbon mineralisation. The models of carbon mineralisation, compared with the experimentally obtained data presented were adequate. Both species show no significant differences in the decomposition processes. Incubations of both species presented rapid t ½ for POC mineralisation and low DOC mineralisation. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000200299 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842013000200299 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-69842013000200010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
publisher.none.fl_str_mv |
Instituto Internacional de Ecologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Biology v.73 n.2 2013 reponame:Brazilian Journal of Biology instname:Instituto Internacional de Ecologia (IIE) instacron:IIE |
instname_str |
Instituto Internacional de Ecologia (IIE) |
instacron_str |
IIE |
institution |
IIE |
reponame_str |
Brazilian Journal of Biology |
collection |
Brazilian Journal of Biology |
repository.name.fl_str_mv |
Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE) |
repository.mail.fl_str_mv |
bjb@bjb.com.br||bjb@bjb.com.br |
_version_ |
1752129879957045248 |