PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER

Detalhes bibliográficos
Autor(a) principal: Pereira, Luís
Data de Publicação: 2022
Outros Autores: Braga, Ana Catarina, Moura, Ana, Antunes, Carlos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Environmental Smoke
Texto Completo: https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189
Resumo: The European eel, Anguilla anguilla (Linnaeus, 1758), is vulnerable to infections by the parasitic nematode Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974, mainly in freshwater ecosystems. The eel is a bioindicator species due to its benthic behaviour, predator, and life cycle. The parasite feeds on blood from the eel's swim bladder, causing damage to the walls and deterioration of this organ, reducing energy reserves, and affecting its migratory capacity for reproduction. Eels were captured at different sampling points divided into 4 areas of the international section of the Minho River in the following time periods: 1995-96, 2008-2011 and 2017-2021, through fyke nets and electric fishing sampling techniques. The objectives of this work were to analyze the dispersion and prevalence of A. crassus in the Minho River basin over time, infection rates and the eels condition. The prevalence levels found reach values ​​close to 75% in some sampled locations and 99% of eels shown pathological signs of swim bladder infection. The nematode dispersal area increased since the early 1990s when its presence in the Minho River was first recorded.
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spelling PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVERAnguillicola crassusAnguilla anguillaParasitismRiver MinhoSwimbladder infectionThe European eel, Anguilla anguilla (Linnaeus, 1758), is vulnerable to infections by the parasitic nematode Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974, mainly in freshwater ecosystems. The eel is a bioindicator species due to its benthic behaviour, predator, and life cycle. The parasite feeds on blood from the eel's swim bladder, causing damage to the walls and deterioration of this organ, reducing energy reserves, and affecting its migratory capacity for reproduction. Eels were captured at different sampling points divided into 4 areas of the international section of the Minho River in the following time periods: 1995-96, 2008-2011 and 2017-2021, through fyke nets and electric fishing sampling techniques. The objectives of this work were to analyze the dispersion and prevalence of A. crassus in the Minho River basin over time, infection rates and the eels condition. The prevalence levels found reach values ​​close to 75% in some sampled locations and 99% of eels shown pathological signs of swim bladder infection. The nematode dispersal area increased since the early 1990s when its presence in the Minho River was first recorded.Environmental Smoke Institute2022-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdftext/htmlhttps://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/18910.32435/envsmoke/xibesymp.10Environmental Smoke; No. Special Issue (2021): X Iberian Symposium on the Hydrographic Minho River Basin; 64-74Environmental Smoke; n. Special Issue (2021): X Simpósio Ibérico sobre a Bacia Hidrográfica do Rio Minho; 64-742595-5527reponame:Environmental Smokeinstname:Environmental Smokeinstacron:ESenghttps://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189/154https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189/262Copyright (c) 2021 Luís Pereira, Ana Catarina Braga, Ana Moura, Carlos Antuneshttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPereira, LuísBraga, Ana CatarinaMoura, AnaAntunes, Carlos2024-02-07T23:06:41Zoai:ojs.pkp.sfu.ca:article/189Revistahttps://environmentalsmoke.com.br/index.php/EnvSmokePRIhttps://environmentalsmoke.com.br/index.php/EnvSmoke/oaismoke@environmentalsmoke.com.br2595-55272595-5527opendoar:2024-02-07T23:06:41Environmental Smoke - Environmental Smokefalse
dc.title.none.fl_str_mv PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
title PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
spellingShingle PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
Pereira, Luís
Anguillicola crassus
Anguilla anguilla
Parasitism
River Minho
Swimbladder infection
title_short PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
title_full PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
title_fullStr PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
title_full_unstemmed PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
title_sort PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
author Pereira, Luís
author_facet Pereira, Luís
Braga, Ana Catarina
Moura, Ana
Antunes, Carlos
author_role author
author2 Braga, Ana Catarina
Moura, Ana
Antunes, Carlos
author2_role author
author
author
dc.contributor.author.fl_str_mv Pereira, Luís
Braga, Ana Catarina
Moura, Ana
Antunes, Carlos
dc.subject.por.fl_str_mv Anguillicola crassus
Anguilla anguilla
Parasitism
River Minho
Swimbladder infection
topic Anguillicola crassus
Anguilla anguilla
Parasitism
River Minho
Swimbladder infection
description The European eel, Anguilla anguilla (Linnaeus, 1758), is vulnerable to infections by the parasitic nematode Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974, mainly in freshwater ecosystems. The eel is a bioindicator species due to its benthic behaviour, predator, and life cycle. The parasite feeds on blood from the eel's swim bladder, causing damage to the walls and deterioration of this organ, reducing energy reserves, and affecting its migratory capacity for reproduction. Eels were captured at different sampling points divided into 4 areas of the international section of the Minho River in the following time periods: 1995-96, 2008-2011 and 2017-2021, through fyke nets and electric fishing sampling techniques. The objectives of this work were to analyze the dispersion and prevalence of A. crassus in the Minho River basin over time, infection rates and the eels condition. The prevalence levels found reach values ​​close to 75% in some sampled locations and 99% of eels shown pathological signs of swim bladder infection. The nematode dispersal area increased since the early 1990s when its presence in the Minho River was first recorded.
publishDate 2022
dc.date.none.fl_str_mv 2022-03-31
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189
10.32435/envsmoke/xibesymp.10
url https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189
identifier_str_mv 10.32435/envsmoke/xibesymp.10
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189/154
https://environmentalsmoke.com.br/index.php/EnvSmoke/article/view/189/262
dc.rights.driver.fl_str_mv Copyright (c) 2021 Luís Pereira, Ana Catarina Braga, Ana Moura, Carlos Antunes
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2021 Luís Pereira, Ana Catarina Braga, Ana Moura, Carlos Antunes
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
text/html
dc.publisher.none.fl_str_mv Environmental Smoke Institute
publisher.none.fl_str_mv Environmental Smoke Institute
dc.source.none.fl_str_mv Environmental Smoke; No. Special Issue (2021): X Iberian Symposium on the Hydrographic Minho River Basin; 64-74
Environmental Smoke; n. Special Issue (2021): X Simpósio Ibérico sobre a Bacia Hidrográfica do Rio Minho; 64-74
2595-5527
reponame:Environmental Smoke
instname:Environmental Smoke
instacron:ES
instname_str Environmental Smoke
instacron_str ES
institution ES
reponame_str Environmental Smoke
collection Environmental Smoke
repository.name.fl_str_mv Environmental Smoke - Environmental Smoke
repository.mail.fl_str_mv smoke@environmentalsmoke.com.br
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