Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece
Anguillicola (Anguillicoides) crassus is a swimbladder nematode parasite of Anguilla anguilla (Linnaeus, 1758). The present study investigates the morphology and pathogenicity of A. crassus in European eel, as well as, the effects of different aquatic environments on the infection of A. crassus, in...
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ftunivthessaly:oai:ir.lib.uth.gr:11615/74298 2023-05-15T13:27:30+02:00 Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece Kantzoura V., Sapounidis A., Kouam M.K., Kolygas M.Ν., Krey G., Koutrakis E. 2021 http://hdl.handle.net/11615/74298 https://doi.org/10.1016/j.vprsr.2021.100586 en eng doi:10.1016/j.vprsr.2021.100586 24059390 http://hdl.handle.net/11615/74298 Veterinary Parasitology: Regional Studies and Reports https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106312436&doi=10.1016%2fj.vprsr.2021.100586&partnerID=40&md5=baa6b83faf8d8856fb39abde5af48235 Anguillicola crassus Article controlled study eel female gene sequence Greece histology histopathology male nematode nonhuman nucleotide sequence pathogenicity swim bladder air sac animal Dracunculoidea parasitology virulence Air Sacs Anguilla Animals Elsevier B.V journalArticle 2021 ftunivthessaly https://doi.org/10.1016/j.vprsr.2021.100586 2023-02-02T17:35:40Z Anguillicola (Anguillicoides) crassus is a swimbladder nematode parasite of Anguilla anguilla (Linnaeus, 1758). The present study investigates the morphology and pathogenicity of A. crassus in European eel, as well as, the effects of different aquatic environments on the infection of A. crassus, in Greece. A total of 268 nematodes were collected from four estuarine systems in Greece. In all collected parasites, measurements carried out to define the morphological characteristics of parasites: parasite length and width, oesophagus max length and max width. Τhe mean parasite length was 23.50 mm (95% CI: 22.42–24.58) for females, 12.95 mm (95% CI: 12.25–13.64) for the males and 6.39 mm (95% CI: 5.27–7.50) for the juveniles. The mean parasite width was 1.99 mm (95% CI: 1.88–2.10) for females, 0.93 mm (95% CI: 0.86–1.00) for males and 0.51 mm (95% CI: 0.39–0.64) for juveniles. In total, the mean intensity was found 3.15 (95% CI: 2.53–3.78), while the highest mean intensity per eel was 8.00 (95% CI: 0.00–29.51) in Tholi Lagoon and the lowest was 2.20 (95% CI: 0.36–4.04) in Amvrakikos Gulf. Longitudinal and transverse histological sections of two adults A. crassus and two swimbladders were carried out. Multiple granules were observed, as a tissue reaction of the organism to swath around the 4th stage larvae (L4) that have entered the swimbladder. Molecular analysis was performed on three female adults A. crassus derived from eel specimens coming from the Vistonis estuarine system. The high reproductive capacity of the parasite reveals that A. anguilla has low effective defense mechanisms against the parasite. Also, the morphometric variations of the A. crassus seems to have a plastic feature which is being differently expressed when exposed to various environments. © 2021 Article in Journal/Newspaper Anguilla anguilla University of Thessaly Institutional Repository Veterinary Parasitology: Regional Studies and Reports 25 100586 |
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Open Polar |
collection |
University of Thessaly Institutional Repository |
op_collection_id |
ftunivthessaly |
language |
English |
topic |
Anguillicola crassus Article controlled study eel female gene sequence Greece histology histopathology male nematode nonhuman nucleotide sequence pathogenicity swim bladder air sac animal Dracunculoidea parasitology virulence Air Sacs Anguilla Animals Elsevier B.V |
spellingShingle |
Anguillicola crassus Article controlled study eel female gene sequence Greece histology histopathology male nematode nonhuman nucleotide sequence pathogenicity swim bladder air sac animal Dracunculoidea parasitology virulence Air Sacs Anguilla Animals Elsevier B.V Kantzoura V., Sapounidis A., Kouam M.K., Kolygas M.Ν., Krey G., Koutrakis E. Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece |
topic_facet |
Anguillicola crassus Article controlled study eel female gene sequence Greece histology histopathology male nematode nonhuman nucleotide sequence pathogenicity swim bladder air sac animal Dracunculoidea parasitology virulence Air Sacs Anguilla Animals Elsevier B.V |
description |
Anguillicola (Anguillicoides) crassus is a swimbladder nematode parasite of Anguilla anguilla (Linnaeus, 1758). The present study investigates the morphology and pathogenicity of A. crassus in European eel, as well as, the effects of different aquatic environments on the infection of A. crassus, in Greece. A total of 268 nematodes were collected from four estuarine systems in Greece. In all collected parasites, measurements carried out to define the morphological characteristics of parasites: parasite length and width, oesophagus max length and max width. Τhe mean parasite length was 23.50 mm (95% CI: 22.42–24.58) for females, 12.95 mm (95% CI: 12.25–13.64) for the males and 6.39 mm (95% CI: 5.27–7.50) for the juveniles. The mean parasite width was 1.99 mm (95% CI: 1.88–2.10) for females, 0.93 mm (95% CI: 0.86–1.00) for males and 0.51 mm (95% CI: 0.39–0.64) for juveniles. In total, the mean intensity was found 3.15 (95% CI: 2.53–3.78), while the highest mean intensity per eel was 8.00 (95% CI: 0.00–29.51) in Tholi Lagoon and the lowest was 2.20 (95% CI: 0.36–4.04) in Amvrakikos Gulf. Longitudinal and transverse histological sections of two adults A. crassus and two swimbladders were carried out. Multiple granules were observed, as a tissue reaction of the organism to swath around the 4th stage larvae (L4) that have entered the swimbladder. Molecular analysis was performed on three female adults A. crassus derived from eel specimens coming from the Vistonis estuarine system. The high reproductive capacity of the parasite reveals that A. anguilla has low effective defense mechanisms against the parasite. Also, the morphometric variations of the A. crassus seems to have a plastic feature which is being differently expressed when exposed to various environments. © 2021 |
format |
Article in Journal/Newspaper |
author |
Kantzoura V., Sapounidis A., Kouam M.K., Kolygas M.Ν., Krey G., Koutrakis E. |
author_facet |
Kantzoura V., Sapounidis A., Kouam M.K., Kolygas M.Ν., Krey G., Koutrakis E. |
author_sort |
Kantzoura V., Sapounidis A., Kouam M.K., Kolygas M.Ν., Krey G., Koutrakis E. |
title |
Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece |
title_short |
Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece |
title_full |
Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece |
title_fullStr |
Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece |
title_full_unstemmed |
Anguillicola (Anguillicoides) crassus: Morphometric characteristics and pathogenicity in eels (Anguilla anguilla) in Greece |
title_sort |
anguillicola (anguillicoides) crassus: morphometric characteristics and pathogenicity in eels (anguilla anguilla) in greece |
publishDate |
2021 |
url |
http://hdl.handle.net/11615/74298 https://doi.org/10.1016/j.vprsr.2021.100586 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Veterinary Parasitology: Regional Studies and Reports https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106312436&doi=10.1016%2fj.vprsr.2021.100586&partnerID=40&md5=baa6b83faf8d8856fb39abde5af48235 |
op_relation |
doi:10.1016/j.vprsr.2021.100586 24059390 http://hdl.handle.net/11615/74298 |
op_doi |
https://doi.org/10.1016/j.vprsr.2021.100586 |
container_title |
Veterinary Parasitology: Regional Studies and Reports |
container_volume |
25 |
container_start_page |
100586 |
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1766398766366064640 |