International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra
International audience While there have many numerous studies regarding the spread of the nematode Anguillicoloides crassus in its host, few of these have addressed the pathology itself. In the present work, we examined the status of the swim bladders of European eels populating Lake Oubeïra, by ass...
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ftunimontpellier:oai:HAL:hal-01931108v1 2024-02-11T09:55:33+01:00 International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra Tahri, Mardja Crivelli, Alain Panfili, Jacques Bensouilah, Mourad Station Biologique de la Tour du Valat MARine Biodiversity Exploitation and Conservation (UMR MARBEC) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) 2016-01 https://hal.science/hal-01931108 en eng HAL CCSD AkiNik Publications hal-01931108 https://hal.science/hal-01931108 ISSN: 2394-0506 EISSN: 2347-5129 International Journal of Fisheries and Aquatic Studies https://hal.science/hal-01931108 International Journal of Fisheries and Aquatic Studies, 2016, 4 (1, Part E) eels swim bladder SDI Anguillicoloides crassus otolith Oubeïra [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2016 ftunimontpellier 2024-01-23T23:45:05Z International audience While there have many numerous studies regarding the spread of the nematode Anguillicoloides crassus in its host, few of these have addressed the pathology itself. In the present work, we examined the status of the swim bladders of European eels populating Lake Oubeïra, by assessment of their Swim bladder Degenerative Index (SDI). We found that the 450 eels that we captured were aged between 19 and 79 months, and that they exhibited an extremely fast growth rate. Our assessment of the REPRODUCTIVE capacity of the European EELs (EELREP) [13] revealed that 3.78% had not undergone sexual differentiation, while 95.78% were females, of which more than half were silvered; and only 0.45% were silvered males. The parasitism by Anguillicoloides crassus exhibited the following epidemiological parameters: P=50.44%, I=7.04±3.18 parasites per swim bladder, and A=3.74±2.04 parasites per eel (the latter varies significantly with the SDI). Lastly, we noticed that 95% of the examined swim bladders were damaged (the SDI varied between 1 and 5) and that this worm does not spare any age group. Article in Journal/Newspaper Anguilla anguilla Université de Montpellier: HAL |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
eels swim bladder SDI Anguillicoloides crassus otolith Oubeïra [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
eels swim bladder SDI Anguillicoloides crassus otolith Oubeïra [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Tahri, Mardja Crivelli, Alain Panfili, Jacques Bensouilah, Mourad International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra |
topic_facet |
eels swim bladder SDI Anguillicoloides crassus otolith Oubeïra [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDE.MCG]Environmental Sciences/Global Changes [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
International audience While there have many numerous studies regarding the spread of the nematode Anguillicoloides crassus in its host, few of these have addressed the pathology itself. In the present work, we examined the status of the swim bladders of European eels populating Lake Oubeïra, by assessment of their Swim bladder Degenerative Index (SDI). We found that the 450 eels that we captured were aged between 19 and 79 months, and that they exhibited an extremely fast growth rate. Our assessment of the REPRODUCTIVE capacity of the European EELs (EELREP) [13] revealed that 3.78% had not undergone sexual differentiation, while 95.78% were females, of which more than half were silvered; and only 0.45% were silvered males. The parasitism by Anguillicoloides crassus exhibited the following epidemiological parameters: P=50.44%, I=7.04±3.18 parasites per swim bladder, and A=3.74±2.04 parasites per eel (the latter varies significantly with the SDI). Lastly, we noticed that 95% of the examined swim bladders were damaged (the SDI varied between 1 and 5) and that this worm does not spare any age group. |
author2 |
Station Biologique de la Tour du Valat MARine Biodiversity Exploitation and Conservation (UMR MARBEC) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Tahri, Mardja Crivelli, Alain Panfili, Jacques Bensouilah, Mourad |
author_facet |
Tahri, Mardja Crivelli, Alain Panfili, Jacques Bensouilah, Mourad |
author_sort |
Tahri, Mardja |
title |
International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra |
title_short |
International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra |
title_full |
International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra |
title_fullStr |
International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra |
title_full_unstemmed |
International Journal of Fisheries and Aquatic Studies 2016; 4(1): 364-369 Health status of the swim bladder of the European eel Anguilla anguilla in northeastern Algeria's Lake Oubeïra |
title_sort |
international journal of fisheries and aquatic studies 2016; 4(1): 364-369 health status of the swim bladder of the european eel anguilla anguilla in northeastern algeria's lake oubeïra |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01931108 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ISSN: 2394-0506 EISSN: 2347-5129 International Journal of Fisheries and Aquatic Studies https://hal.science/hal-01931108 International Journal of Fisheries and Aquatic Studies, 2016, 4 (1, Part E) |
op_relation |
hal-01931108 https://hal.science/hal-01931108 |
_version_ |
1790597327867609088 |