Does the oscillation of the water volume of the reservoir influence in the same way in fish diet?
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
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=S2179-975X2018000100807 |
Resumo: | Abstract Aim: To evaluate the fish feeding and to establish the preferential and secondary items of their diets, to determine the trophic guilds and the possible trophic structure variations in function of the water volume in Umari reservoir, Rio Grande do Norte, Brazilian semiarid. Methods The fish were captured quarterly between February and November of 2013, with gill nets with different meshes, being the apparatuses exposed at 5:00 p.m., with removal at 5:00 a.m. The food items were identified using stereoscopic and optical microscopes and evaluated through the Feeding Index (IAi), being the results of this procedure used in food similarity analysis. The volume of the items was orderly in NMDS and the time differences were tested in PERMANOVA. Results A total of 740 individuals belonging to 14 species were sampled, being analyzed a total of 258 stomachs and 8 intestines of 11 species. From the IAi values used in the trophic similarity analysis, the species were classified into five trophic guilds: detritivorous, insectivorous, malacophagous, carcinophagous and piscivorous. Conclusion The oscillation in the water volume of the reservoir did not influence the diet of the guild detritivorous, which shows that the variations in the volume of water of the reservoir do not influence in the same way the diet of the local ichthyofauna. |
id |
ABL-1_8332e8192c5dee0729b69f8abffd9809 |
---|---|
oai_identifier_str |
oai:scielo:S2179-975X2018000100807 |
network_acronym_str |
ABL-1 |
network_name_str |
Acta Limnologica Brasiliensia (Online) |
repository_id_str |
|
spelling |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet?feedingtrophic guildsichthyofaunasemiarid Abstract Aim: To evaluate the fish feeding and to establish the preferential and secondary items of their diets, to determine the trophic guilds and the possible trophic structure variations in function of the water volume in Umari reservoir, Rio Grande do Norte, Brazilian semiarid. Methods The fish were captured quarterly between February and November of 2013, with gill nets with different meshes, being the apparatuses exposed at 5:00 p.m., with removal at 5:00 a.m. The food items were identified using stereoscopic and optical microscopes and evaluated through the Feeding Index (IAi), being the results of this procedure used in food similarity analysis. The volume of the items was orderly in NMDS and the time differences were tested in PERMANOVA. Results A total of 740 individuals belonging to 14 species were sampled, being analyzed a total of 258 stomachs and 8 intestines of 11 species. From the IAi values used in the trophic similarity analysis, the species were classified into five trophic guilds: detritivorous, insectivorous, malacophagous, carcinophagous and piscivorous. Conclusion The oscillation in the water volume of the reservoir did not influence the diet of the guild detritivorous, which shows that the variations in the volume of water of the reservoir do not influence in the same way the diet of the local ichthyofauna.Associação Brasileira de Limnologia2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2018000100807Acta Limnologica Brasiliensia v.30 2018reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/s2179-975x9216info:eu-repo/semantics/openAccessOliveira,Jean Carlos Dantas deOliveira,Jônnata Fernandes deRebouças,Luzia Geize FernandesNovaes,José Luís CostaPeretti,Danielleeng2018-04-11T00:00:00Zoai:scielo:S2179-975X2018000100807Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2018-04-11T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false |
dc.title.none.fl_str_mv |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
title |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
spellingShingle |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? Oliveira,Jean Carlos Dantas de feeding trophic guilds ichthyofauna semiarid |
title_short |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
title_full |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
title_fullStr |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
title_full_unstemmed |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
title_sort |
Does the oscillation of the water volume of the reservoir influence in the same way in fish diet? |
author |
Oliveira,Jean Carlos Dantas de |
author_facet |
Oliveira,Jean Carlos Dantas de Oliveira,Jônnata Fernandes de Rebouças,Luzia Geize Fernandes Novaes,José Luís Costa Peretti,Danielle |
author_role |
author |
author2 |
Oliveira,Jônnata Fernandes de Rebouças,Luzia Geize Fernandes Novaes,José Luís Costa Peretti,Danielle |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Oliveira,Jean Carlos Dantas de Oliveira,Jônnata Fernandes de Rebouças,Luzia Geize Fernandes Novaes,José Luís Costa Peretti,Danielle |
dc.subject.por.fl_str_mv |
feeding trophic guilds ichthyofauna semiarid |
topic |
feeding trophic guilds ichthyofauna semiarid |
description |
Abstract Aim: To evaluate the fish feeding and to establish the preferential and secondary items of their diets, to determine the trophic guilds and the possible trophic structure variations in function of the water volume in Umari reservoir, Rio Grande do Norte, Brazilian semiarid. Methods The fish were captured quarterly between February and November of 2013, with gill nets with different meshes, being the apparatuses exposed at 5:00 p.m., with removal at 5:00 a.m. The food items were identified using stereoscopic and optical microscopes and evaluated through the Feeding Index (IAi), being the results of this procedure used in food similarity analysis. The volume of the items was orderly in NMDS and the time differences were tested in PERMANOVA. Results A total of 740 individuals belonging to 14 species were sampled, being analyzed a total of 258 stomachs and 8 intestines of 11 species. From the IAi values used in the trophic similarity analysis, the species were classified into five trophic guilds: detritivorous, insectivorous, malacophagous, carcinophagous and piscivorous. Conclusion The oscillation in the water volume of the reservoir did not influence the diet of the guild detritivorous, which shows that the variations in the volume of water of the reservoir do not influence in the same way the diet of the local ichthyofauna. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
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=S2179-975X2018000100807 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2018000100807 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s2179-975x9216 |
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.30 2018 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 |
_version_ |
1754212637273489408 |