The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil)
Autor(a) principal: | |
---|---|
Data de Publicação: | 1992 |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3739/rikusui.53.379 http://hdl.handle.net/11449/230875 |
Resumo: | Oxygen actual and relative deficits in Jurumirim Reservoir were computed from the temperature and dissolved oxygen profiles determined in a study from March 1988 to March 1989. The reservoir presented an isothermy from June to September and a thermal stratification from October to March. Thermocline was always located at the 1/3 deeper zone of the water column. Clinograde oxygen profiles were observed during the thermal stratification period. Water in the reservoir was always well oxygenated until 20m depth along the year. At the bottom (25m depth), O2content decreased significantly during the thermal stratification period. Thus, the deficits were higher at the bottom. Total oxygen actual and relative deficits for all the reservoir ranged from 0.03 to 0.72 mg • cm-2and from 0.013 to 0.032 mg • cm-2• day”1, respectively. Using other trophic status indices such as Secchi disk transparency and chlorophyll-a concentration as well as the oxygen deficits, Jurumirim Reservoir can be categorized in the oligotrophic class. © 1992, The Japanese Society of Limnology. All rights reserved. |
id |
UNSP_f798e18b1b54d5bffdd8501eb8c0fe6d |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/230875 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil)chlorophyll-aoxygen deficitthermal structuretropical reservoirwater transparencyOxygen actual and relative deficits in Jurumirim Reservoir were computed from the temperature and dissolved oxygen profiles determined in a study from March 1988 to March 1989. The reservoir presented an isothermy from June to September and a thermal stratification from October to March. Thermocline was always located at the 1/3 deeper zone of the water column. Clinograde oxygen profiles were observed during the thermal stratification period. Water in the reservoir was always well oxygenated until 20m depth along the year. At the bottom (25m depth), O2content decreased significantly during the thermal stratification period. Thus, the deficits were higher at the bottom. Total oxygen actual and relative deficits for all the reservoir ranged from 0.03 to 0.72 mg • cm-2and from 0.013 to 0.032 mg • cm-2• day”1, respectively. Using other trophic status indices such as Secchi disk transparency and chlorophyll-a concentration as well as the oxygen deficits, Jurumirim Reservoir can be categorized in the oligotrophic class. © 1992, The Japanese Society of Limnology. All rights reserved.Department of Zoology Institute of Biosciences, UNESP, C. P. 502, 18610, BotucatuUniversidade Estadual Paulista (UNESP)Henry, Raoul2022-04-29T08:42:26Z2022-04-29T08:42:26Z1992-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article379-384http://dx.doi.org/10.3739/rikusui.53.379Japanese Journal of Limnology (Rikusuigaku Zasshi), v. 53, n. 4, p. 379-384, 1992.1882-48970021-5104http://hdl.handle.net/11449/23087510.3739/rikusui.53.3792-s2.0-0027027866Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJapanese Journal of Limnology (Rikusuigaku Zasshi)info:eu-repo/semantics/openAccess2022-04-29T08:42:26Zoai:repositorio.unesp.br:11449/230875Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:25:19.396653Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
title |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
spellingShingle |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) Henry, Raoul chlorophyll-a oxygen deficit thermal structure tropical reservoir water transparency |
title_short |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
title_full |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
title_fullStr |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
title_full_unstemmed |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
title_sort |
The Oxygen Deficit in Jurumirim Reservoir (Paranapanema River, São Paulo, Brazil) |
author |
Henry, Raoul |
author_facet |
Henry, Raoul |
author_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Henry, Raoul |
dc.subject.por.fl_str_mv |
chlorophyll-a oxygen deficit thermal structure tropical reservoir water transparency |
topic |
chlorophyll-a oxygen deficit thermal structure tropical reservoir water transparency |
description |
Oxygen actual and relative deficits in Jurumirim Reservoir were computed from the temperature and dissolved oxygen profiles determined in a study from March 1988 to March 1989. The reservoir presented an isothermy from June to September and a thermal stratification from October to March. Thermocline was always located at the 1/3 deeper zone of the water column. Clinograde oxygen profiles were observed during the thermal stratification period. Water in the reservoir was always well oxygenated until 20m depth along the year. At the bottom (25m depth), O2content decreased significantly during the thermal stratification period. Thus, the deficits were higher at the bottom. Total oxygen actual and relative deficits for all the reservoir ranged from 0.03 to 0.72 mg • cm-2and from 0.013 to 0.032 mg • cm-2• day”1, respectively. Using other trophic status indices such as Secchi disk transparency and chlorophyll-a concentration as well as the oxygen deficits, Jurumirim Reservoir can be categorized in the oligotrophic class. © 1992, The Japanese Society of Limnology. All rights reserved. |
publishDate |
1992 |
dc.date.none.fl_str_mv |
1992-02-01 2022-04-29T08:42:26Z 2022-04-29T08:42:26Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3739/rikusui.53.379 Japanese Journal of Limnology (Rikusuigaku Zasshi), v. 53, n. 4, p. 379-384, 1992. 1882-4897 0021-5104 http://hdl.handle.net/11449/230875 10.3739/rikusui.53.379 2-s2.0-0027027866 |
url |
http://dx.doi.org/10.3739/rikusui.53.379 http://hdl.handle.net/11449/230875 |
identifier_str_mv |
Japanese Journal of Limnology (Rikusuigaku Zasshi), v. 53, n. 4, p. 379-384, 1992. 1882-4897 0021-5104 10.3739/rikusui.53.379 2-s2.0-0027027866 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Japanese Journal of Limnology (Rikusuigaku Zasshi) |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
379-384 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128648478195712 |