Patterns of energy allocation to reproduction in three Amazonian fish species

Detalhes bibliográficos
Autor(a) principal: Santos,Rodrigo N. dos
Data de Publicação: 2010
Outros Autores: Amadio,Sidinéia, Ferreira,Efrem J. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100018
Resumo: The study considered the influence of the hydrological cycle and gonadal development on the accumulation and use of energy in three fish species from an Amazonian flooded area. Fishes were sampled over a 24 hour period at monthly intervals between July 2004 and June 2005 using gillnets of different mesh sizes. Body cavity fat and gonadosomatic indices were determined, as well as energy content of gonads and muscles. Amongst the studied species, different means of energy allocation for reproduction were found: Acestrorhynchus falcirostris allocate energy from body cavity fat to its gonads; Pygocentrus nattereri uses mainly energy accumulated in the muscles for the process of gonadal maturation; and Hoplosternum littorale uses energy accumulated in their muscles and body cavity fat for reproductive processes. It is quite clear that the flood pulse regulates the gain and use of the energy reserves in fishes from the Amazonian floodplain.
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spelling Patterns of energy allocation to reproduction in three Amazonian fish speciesAmazon floodplainEnergy contentsHydrological cycleReproductive biologyThe study considered the influence of the hydrological cycle and gonadal development on the accumulation and use of energy in three fish species from an Amazonian flooded area. Fishes were sampled over a 24 hour period at monthly intervals between July 2004 and June 2005 using gillnets of different mesh sizes. Body cavity fat and gonadosomatic indices were determined, as well as energy content of gonads and muscles. Amongst the studied species, different means of energy allocation for reproduction were found: Acestrorhynchus falcirostris allocate energy from body cavity fat to its gonads; Pygocentrus nattereri uses mainly energy accumulated in the muscles for the process of gonadal maturation; and Hoplosternum littorale uses energy accumulated in their muscles and body cavity fat for reproductive processes. It is quite clear that the flood pulse regulates the gain and use of the energy reserves in fishes from the Amazonian floodplain.Sociedade Brasileira de Ictiologia2010-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100018Neotropical Ichthyology v.8 n.1 2010reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252010005000001info:eu-repo/semantics/openAccessSantos,Rodrigo N. dosAmadio,SidinéiaFerreira,Efrem J. G.eng2010-04-19T00:00:00Zoai:scielo:S1679-62252010000100018Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2010-04-19T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv Patterns of energy allocation to reproduction in three Amazonian fish species
title Patterns of energy allocation to reproduction in three Amazonian fish species
spellingShingle Patterns of energy allocation to reproduction in three Amazonian fish species
Santos,Rodrigo N. dos
Amazon floodplain
Energy contents
Hydrological cycle
Reproductive biology
title_short Patterns of energy allocation to reproduction in three Amazonian fish species
title_full Patterns of energy allocation to reproduction in three Amazonian fish species
title_fullStr Patterns of energy allocation to reproduction in three Amazonian fish species
title_full_unstemmed Patterns of energy allocation to reproduction in three Amazonian fish species
title_sort Patterns of energy allocation to reproduction in three Amazonian fish species
author Santos,Rodrigo N. dos
author_facet Santos,Rodrigo N. dos
Amadio,Sidinéia
Ferreira,Efrem J. G.
author_role author
author2 Amadio,Sidinéia
Ferreira,Efrem J. G.
author2_role author
author
dc.contributor.author.fl_str_mv Santos,Rodrigo N. dos
Amadio,Sidinéia
Ferreira,Efrem J. G.
dc.subject.por.fl_str_mv Amazon floodplain
Energy contents
Hydrological cycle
Reproductive biology
topic Amazon floodplain
Energy contents
Hydrological cycle
Reproductive biology
description The study considered the influence of the hydrological cycle and gonadal development on the accumulation and use of energy in three fish species from an Amazonian flooded area. Fishes were sampled over a 24 hour period at monthly intervals between July 2004 and June 2005 using gillnets of different mesh sizes. Body cavity fat and gonadosomatic indices were determined, as well as energy content of gonads and muscles. Amongst the studied species, different means of energy allocation for reproduction were found: Acestrorhynchus falcirostris allocate energy from body cavity fat to its gonads; Pygocentrus nattereri uses mainly energy accumulated in the muscles for the process of gonadal maturation; and Hoplosternum littorale uses energy accumulated in their muscles and body cavity fat for reproductive processes. It is quite clear that the flood pulse regulates the gain and use of the energy reserves in fishes from the Amazonian floodplain.
publishDate 2010
dc.date.none.fl_str_mv 2010-03-01
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=S1679-62252010000100018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252010000100018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1679-62252010005000001
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 Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv Neotropical Ichthyology v.8 n.1 2010
reponame:Neotropical ichthyology (Online)
instname:Sociedade Brasileira de Ictiologia (SBI)
instacron:SBI
instname_str Sociedade Brasileira de Ictiologia (SBI)
instacron_str SBI
institution SBI
reponame_str Neotropical ichthyology (Online)
collection Neotropical ichthyology (Online)
repository.name.fl_str_mv Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)
repository.mail.fl_str_mv ||neoichth@nupelia.uem.br
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