Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal
In this work, a survey of sea bass, Dicentrarchus labrax, for amoebae and scuticociliatidia infections was carried out to evaluate their effects on the aquaculture of this fish species. The study was conducted in two different fish farms, one using seawater and the other brackish water. Infection wi...
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Online Access: | https://hdl.handle.net/10216/25751 https://doi.org/10.1016/j.vetpar.2010.03.013 |
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ftunivporto:oai:repositorio-aberto.up.pt:10216/25751 2023-06-18T03:43:23+02:00 Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal Maria Joao Santos Francisca Cavaleiro Pamela Campos Andre Sousa Filipa Teixeira Marta Martins Faculdade de Ciências 2010 application/pdf https://hdl.handle.net/10216/25751 https://doi.org/10.1016/j.vetpar.2010.03.013 eng eng 0304-4017 https://hdl.handle.net/10216/25751 doi:10.1016/j.vetpar.2010.03.013 P-003-4VQ info:eu-repo/semantics/openAccess Ciências veterinárias Veterinary science Ciências agrárias::Ciências veterinárias Agrarian Sciences::Veterinary science info:eu-repo/semantics/article 2010 ftunivporto https://doi.org/10.1016/j.vetpar.2010.03.013 2023-06-06T21:03:48Z In this work, a survey of sea bass, Dicentrarchus labrax, for amoebae and scuticociliatidia infections was carried out to evaluate their effects on the aquaculture of this fish species. The study was conducted in two different fish farms, one using seawater and the other brackish water. Infection with parasitic amoebae was found to be fairly high (prevalence: 43-73%), being more frequent in sea bass from the brackish water system. Although it was never found to cause outbreaks of disease or mortality in the surveyed fish, amoebic gill disease (AGD) histopathological signs, i.e., hyperplasia, secondary lamellae fusion and cavity formation (interlamellar vesicles), were observed in fish manifesting no macroscopic lesions. Furthermore, some evidence was found that amoebae affects the fish's general state of health and growth rate. These results indicate that cautious and detailed surveys to detect this sort of infection, and thus carefully plan its control, are fully justified. Compared with amoebic infection, the prevalence of scuticociliatosis was found to be low (7-13%). No outbreaks of disease or mortality were ever recorded, even when scuticociliatidia was present in turbot raised in the same water system, leading to serious outbreaks of disease and mortalities in that species. This suggests that sea bass is far more resistant than turbot to such infections, and if this is the case, the former fish may be a good farming alternative when scuticociliatidia is present. Article in Journal/Newspaper Turbot Repositório Aberto da Universidade do Porto Veterinary Parasitology 171 1-2 15 21 |
institution |
Open Polar |
collection |
Repositório Aberto da Universidade do Porto |
op_collection_id |
ftunivporto |
language |
English |
topic |
Ciências veterinárias Veterinary science Ciências agrárias::Ciências veterinárias Agrarian Sciences::Veterinary science |
spellingShingle |
Ciências veterinárias Veterinary science Ciências agrárias::Ciências veterinárias Agrarian Sciences::Veterinary science Maria Joao Santos Francisca Cavaleiro Pamela Campos Andre Sousa Filipa Teixeira Marta Martins Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal |
topic_facet |
Ciências veterinárias Veterinary science Ciências agrárias::Ciências veterinárias Agrarian Sciences::Veterinary science |
description |
In this work, a survey of sea bass, Dicentrarchus labrax, for amoebae and scuticociliatidia infections was carried out to evaluate their effects on the aquaculture of this fish species. The study was conducted in two different fish farms, one using seawater and the other brackish water. Infection with parasitic amoebae was found to be fairly high (prevalence: 43-73%), being more frequent in sea bass from the brackish water system. Although it was never found to cause outbreaks of disease or mortality in the surveyed fish, amoebic gill disease (AGD) histopathological signs, i.e., hyperplasia, secondary lamellae fusion and cavity formation (interlamellar vesicles), were observed in fish manifesting no macroscopic lesions. Furthermore, some evidence was found that amoebae affects the fish's general state of health and growth rate. These results indicate that cautious and detailed surveys to detect this sort of infection, and thus carefully plan its control, are fully justified. Compared with amoebic infection, the prevalence of scuticociliatosis was found to be low (7-13%). No outbreaks of disease or mortality were ever recorded, even when scuticociliatidia was present in turbot raised in the same water system, leading to serious outbreaks of disease and mortalities in that species. This suggests that sea bass is far more resistant than turbot to such infections, and if this is the case, the former fish may be a good farming alternative when scuticociliatidia is present. |
author2 |
Faculdade de Ciências |
format |
Article in Journal/Newspaper |
author |
Maria Joao Santos Francisca Cavaleiro Pamela Campos Andre Sousa Filipa Teixeira Marta Martins |
author_facet |
Maria Joao Santos Francisca Cavaleiro Pamela Campos Andre Sousa Filipa Teixeira Marta Martins |
author_sort |
Maria Joao Santos |
title |
Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal |
title_short |
Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal |
title_full |
Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal |
title_fullStr |
Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal |
title_full_unstemmed |
Impact of amoeba and scuticociliatidia infections on the aquaculture European sea bass (Dicentrarchus labrax L.) in Portugal |
title_sort |
impact of amoeba and scuticociliatidia infections on the aquaculture european sea bass (dicentrarchus labrax l.) in portugal |
publishDate |
2010 |
url |
https://hdl.handle.net/10216/25751 https://doi.org/10.1016/j.vetpar.2010.03.013 |
genre |
Turbot |
genre_facet |
Turbot |
op_relation |
0304-4017 https://hdl.handle.net/10216/25751 doi:10.1016/j.vetpar.2010.03.013 P-003-4VQ |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.vetpar.2010.03.013 |
container_title |
Veterinary Parasitology |
container_volume |
171 |
container_issue |
1-2 |
container_start_page |
15 |
op_container_end_page |
21 |
_version_ |
1769009750320611328 |