PREVALENCE OF THE Anguillicola crassus PARASITE IN THE INTERNATIONAL MINHO RIVER
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
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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Environmental Smoke |
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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 |
_version_ |
1797051134466064384 |