CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/21227 |
Resumo: | The main purpose of this research was to measure the condition of the fish species Hoplias aff. malabaricus collected in Aguapeu River (black waters) and Branco River (white waters), which belong to Itanhaem River basin, a coastal watershed in São Paulo state, Brazil. Individuals of Hoplias aff. malabaricus were sampled by using gill nets, monthly from March 2001 to February 2002. The Condition Factor was obtained through the length-weight relationship, assuming that the higher the mass for a given length, the better the condition of the fish. The Condition Factor was compared among fishes from both rivers, resulting that Branco River individuals have significantly lower condition. Limnological aspects were studied from May 2001 to November 2002 and some show significant differences between Aguapeu River and Branco River. These were salinity, do and total organic N, which the higher values being observed in Branco River propably due to estuarine waters influence. However, the lower condition of the Branco River fishes should also be an effect of a disturbance due to the sand mining in this river, since this activity cause important alterations to the environment, affecting the whole biota, included aquatic macrophytes, invertebrates and fishes. |
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Repositório Institucional da UNESP |
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CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZILHoplias aff. malabaricuscondition factorAguapeu RiverBranco RiverItanhaem Riveraquatic macrophytessand miningThe main purpose of this research was to measure the condition of the fish species Hoplias aff. malabaricus collected in Aguapeu River (black waters) and Branco River (white waters), which belong to Itanhaem River basin, a coastal watershed in São Paulo state, Brazil. Individuals of Hoplias aff. malabaricus were sampled by using gill nets, monthly from March 2001 to February 2002. The Condition Factor was obtained through the length-weight relationship, assuming that the higher the mass for a given length, the better the condition of the fish. The Condition Factor was compared among fishes from both rivers, resulting that Branco River individuals have significantly lower condition. Limnological aspects were studied from May 2001 to November 2002 and some show significant differences between Aguapeu River and Branco River. These were salinity, do and total organic N, which the higher values being observed in Branco River propably due to estuarine waters influence. However, the lower condition of the Branco River fishes should also be an effect of a disturbance due to the sand mining in this river, since this activity cause important alterations to the environment, affecting the whole biota, included aquatic macrophytes, invertebrates and fishes.São Paulo State Univ, UNESP, IB, Dept Zool, BR-13506900 Rio Claro, SP, BrazilSão Paulo State Univ, UNESP, IB, Dept Zool, BR-13506900 Rio Claro, SP, BrazilInst PescaUniversidade Estadual Paulista (Unesp)de Sant'Anna, Evandro Bonocchi [UNESP]Goitein, Roberto [UNESP]2014-05-20T14:00:01Z2014-05-20T14:00:01Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article429-439ftp://ftp.sp.gov.br/ftppesca/35_3_429-439.pdfBoletim do Instituto de Pesca. São Paulo: Inst Pesca, v. 35, n. 3, p. 429-439, 2009.0046-9939http://hdl.handle.net/11449/21227WOS:0002757476000079317499005247273Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBoletim do Instituto de Pesca0.3480,220info:eu-repo/semantics/openAccess2021-10-22T20:11:27Zoai:repositorio.unesp.br:11449/21227Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T20:11:27Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
title |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
spellingShingle |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL de Sant'Anna, Evandro Bonocchi [UNESP] Hoplias aff. malabaricus condition factor Aguapeu River Branco River Itanhaem River aquatic macrophytes sand mining |
title_short |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
title_full |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
title_fullStr |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
title_full_unstemmed |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
title_sort |
CONDITION of Hoplias aff. malabaricus (BLOCH, 1794) IN TWO COASTAL STREAMS of ITANHAEM RIVER BASIN, BRAZIL |
author |
de Sant'Anna, Evandro Bonocchi [UNESP] |
author_facet |
de Sant'Anna, Evandro Bonocchi [UNESP] Goitein, Roberto [UNESP] |
author_role |
author |
author2 |
Goitein, Roberto [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Sant'Anna, Evandro Bonocchi [UNESP] Goitein, Roberto [UNESP] |
dc.subject.por.fl_str_mv |
Hoplias aff. malabaricus condition factor Aguapeu River Branco River Itanhaem River aquatic macrophytes sand mining |
topic |
Hoplias aff. malabaricus condition factor Aguapeu River Branco River Itanhaem River aquatic macrophytes sand mining |
description |
The main purpose of this research was to measure the condition of the fish species Hoplias aff. malabaricus collected in Aguapeu River (black waters) and Branco River (white waters), which belong to Itanhaem River basin, a coastal watershed in São Paulo state, Brazil. Individuals of Hoplias aff. malabaricus were sampled by using gill nets, monthly from March 2001 to February 2002. The Condition Factor was obtained through the length-weight relationship, assuming that the higher the mass for a given length, the better the condition of the fish. The Condition Factor was compared among fishes from both rivers, resulting that Branco River individuals have significantly lower condition. Limnological aspects were studied from May 2001 to November 2002 and some show significant differences between Aguapeu River and Branco River. These were salinity, do and total organic N, which the higher values being observed in Branco River propably due to estuarine waters influence. However, the lower condition of the Branco River fishes should also be an effect of a disturbance due to the sand mining in this river, since this activity cause important alterations to the environment, affecting the whole biota, included aquatic macrophytes, invertebrates and fishes. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2014-05-20T14:00:01Z 2014-05-20T14:00:01Z |
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 |
ftp://ftp.sp.gov.br/ftppesca/35_3_429-439.pdf Boletim do Instituto de Pesca. São Paulo: Inst Pesca, v. 35, n. 3, p. 429-439, 2009. 0046-9939 http://hdl.handle.net/11449/21227 WOS:000275747600007 9317499005247273 |
identifier_str_mv |
ftp://ftp.sp.gov.br/ftppesca/35_3_429-439.pdf Boletim do Instituto de Pesca. São Paulo: Inst Pesca, v. 35, n. 3, p. 429-439, 2009. 0046-9939 WOS:000275747600007 9317499005247273 |
url |
http://hdl.handle.net/11449/21227 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Boletim do Instituto de Pesca 0.348 0,220 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
429-439 |
dc.publisher.none.fl_str_mv |
Inst Pesca |
publisher.none.fl_str_mv |
Inst Pesca |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1799964676054843392 |