Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Limnologica Brasiliensia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100323 |
Resumo: | Abstract Aim This study was carried out to determine which phytoplankton species, as a natural food, can be ingested and digested by Nile tilapia (Oreochromis niloticus L.). Methods During this study, phytoplankton in the gut contents of Nile tilapia collected from three fishponds in southern Egypt were investigated during the period Oct. 2012-Sep. 2013. Samples of tilapia fish were grown in aquarium containing filtered pond water to detect undigested phytoplankton species in the feces. Results The majority of the phytoplankton found in the gut of Nile tilapia was Cyanobacteria (36-50%) and Chlorophyta (27-38%). Other groups such Diatoms, Euglenophyta and Dinophyta were also found but with lower percentages (<19%). The most important and dominant phytoplankton species found in Tilapia gut were the potentially toxic cyanobacteria, Anabaena, Anabaenopsis, Cylindrospermopsis, Microcystis and Planktothrix. Only diatoms were recorded in the feces, indicating the ability of Tilapia to digest all phytoplankton except diatoms. Conclusions The data of this study could be useful for biomanipulation of nuisance phytoplankton blooms in eutrophic aquacultures. |
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Acta Limnologica Brasiliensia (Online) |
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Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom controlcyanobacteriadiatomsdigestioningestiontilapiaAbstract Aim This study was carried out to determine which phytoplankton species, as a natural food, can be ingested and digested by Nile tilapia (Oreochromis niloticus L.). Methods During this study, phytoplankton in the gut contents of Nile tilapia collected from three fishponds in southern Egypt were investigated during the period Oct. 2012-Sep. 2013. Samples of tilapia fish were grown in aquarium containing filtered pond water to detect undigested phytoplankton species in the feces. Results The majority of the phytoplankton found in the gut of Nile tilapia was Cyanobacteria (36-50%) and Chlorophyta (27-38%). Other groups such Diatoms, Euglenophyta and Dinophyta were also found but with lower percentages (<19%). The most important and dominant phytoplankton species found in Tilapia gut were the potentially toxic cyanobacteria, Anabaena, Anabaenopsis, Cylindrospermopsis, Microcystis and Planktothrix. Only diatoms were recorded in the feces, indicating the ability of Tilapia to digest all phytoplankton except diatoms. Conclusions The data of this study could be useful for biomanipulation of nuisance phytoplankton blooms in eutrophic aquacultures.Associação Brasileira de Limnologia2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100323Acta Limnologica Brasiliensia v.31 2019reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/s2179-975x8418info:eu-repo/semantics/openAccessMohamed,ZakariaAhmed,ZeinabBakr,Asmaaeng2019-10-16T00:00:00Zoai:scielo:S2179-975X2019000100323Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2019-10-16T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false |
dc.title.none.fl_str_mv |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
title |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
spellingShingle |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control Mohamed,Zakaria cyanobacteria diatoms digestion ingestion tilapia |
title_short |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
title_full |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
title_fullStr |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
title_full_unstemmed |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
title_sort |
Assessment of phytoplankton species in gut and feces of cultured tilapia fish in Egyptian fishponds: Implications for feeding and bloom control |
author |
Mohamed,Zakaria |
author_facet |
Mohamed,Zakaria Ahmed,Zeinab Bakr,Asmaa |
author_role |
author |
author2 |
Ahmed,Zeinab Bakr,Asmaa |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Mohamed,Zakaria Ahmed,Zeinab Bakr,Asmaa |
dc.subject.por.fl_str_mv |
cyanobacteria diatoms digestion ingestion tilapia |
topic |
cyanobacteria diatoms digestion ingestion tilapia |
description |
Abstract Aim This study was carried out to determine which phytoplankton species, as a natural food, can be ingested and digested by Nile tilapia (Oreochromis niloticus L.). Methods During this study, phytoplankton in the gut contents of Nile tilapia collected from three fishponds in southern Egypt were investigated during the period Oct. 2012-Sep. 2013. Samples of tilapia fish were grown in aquarium containing filtered pond water to detect undigested phytoplankton species in the feces. Results The majority of the phytoplankton found in the gut of Nile tilapia was Cyanobacteria (36-50%) and Chlorophyta (27-38%). Other groups such Diatoms, Euglenophyta and Dinophyta were also found but with lower percentages (<19%). The most important and dominant phytoplankton species found in Tilapia gut were the potentially toxic cyanobacteria, Anabaena, Anabaenopsis, Cylindrospermopsis, Microcystis and Planktothrix. Only diatoms were recorded in the feces, indicating the ability of Tilapia to digest all phytoplankton except diatoms. Conclusions The data of this study could be useful for biomanipulation of nuisance phytoplankton blooms in eutrophic aquacultures. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
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=S2179-975X2019000100323 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100323 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s2179-975x8418 |
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 |
Associação Brasileira de Limnologia |
publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
dc.source.none.fl_str_mv |
Acta Limnologica Brasiliensia v.31 2019 reponame:Acta Limnologica Brasiliensia (Online) instname:Associação Brasileira de Limnologia (ABL) instacron:ABL |
instname_str |
Associação Brasileira de Limnologia (ABL) |
instacron_str |
ABL |
institution |
ABL |
reponame_str |
Acta Limnologica Brasiliensia (Online) |
collection |
Acta Limnologica Brasiliensia (Online) |
repository.name.fl_str_mv |
Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL) |
repository.mail.fl_str_mv |
||actalb@rc.unesp.br |
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1754212637719134208 |