Saprolegniasis in wild fish populations

Saprolegniasis in wild fish populations

The clinical signs and histopathological disturbances produced by Saprolegnia sp. are described in Chondrostomos polylepis and Rutilus albugineus, under environmental stress. The main alterations observed were loss of epithelium leading to ulceration and blood disorders, consisting of blood congesti...

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Autors principals: González-de-Canales, ML, Ortiz, JB, González-Valle, M, Sarasquete, C
Format: Online
Idioma:eng
Publicat: Iniversidad Autónoma de Baja California 2001
Accés en línia:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/373
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spelling oai:cienciasmarinas.com.mx:article-3732019-05-14T17:10:10Z Saprolegniasis in wild fish populations Saprolegniasis en poblaciones naturales de peces González-de-Canales, ML Ortiz, JB González-Valle, M Sarasquete, C Saprolegnia fish fungus histopathological disorders Saprolegnia pez hongo alteraciones histopatológicas The clinical signs and histopathological disturbances produced by Saprolegnia sp. are described in Chondrostomos polylepis and Rutilus albugineus, under environmental stress. The main alterations observed were loss of epithelium leading to ulceration and blood disorders, consisting of blood congestion and occasional hemorrhages. Infected fish developed focal lesions with the fungus invading the stratum spongiosum of the dermis before extending laterally over the epidermis. The onset of disease was brought about by a combination of a rapid fall in water temperature, which probably induced an effect of immunosuppression, and the maintenance of low water temperature, which favored the proliferation of the fungus. Se describe la sintomatología clínica y las alteraciones histopatológicas producidas por Saprolegnia sp. en Chondostromos polylepis y Rutilus albugineus sometidos a estrés ambiental. Como principales alteraciones histopatológicas se observaron la pérdida de epitelio (ulceración en estado avanzado de la enfermedad) y desórdenes del sistema circulatorio, consistentes en congestión sanguínea con hemorragias ocasionales. Los peces infectados desarrollan lesiones focales en las que el hongo invade el stratum spongiosum de la dermis y se extiende lateralmente hacia la epidermis, produciendo alteraciones a este nivel. El comienzo de la enfermedad fue producido por un descenso brusco en la temperatura del agua, que probablemente induce un efecto de inmunosupresión y favorece la proliferación del hongo. Iniversidad Autónoma de Baja California 2001-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/373 10.7773/cm.v27i1.373 Ciencias Marinas; Vol. 27 No. 1 (2001); 125-137 Ciencias Marinas; Vol. 27 Núm. 1 (2001); 125-137 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/373/320
institution Ciencias Marinas
collection OJS
language eng
format Online
author González-de-Canales, ML
Ortiz, JB
González-Valle, M
Sarasquete, C
spellingShingle González-de-Canales, ML
Ortiz, JB
González-Valle, M
Sarasquete, C
Saprolegniasis in wild fish populations
author_facet González-de-Canales, ML
Ortiz, JB
González-Valle, M
Sarasquete, C
author_sort González-de-Canales, ML
title Saprolegniasis in wild fish populations
title_short Saprolegniasis in wild fish populations
title_full Saprolegniasis in wild fish populations
title_fullStr Saprolegniasis in wild fish populations
title_full_unstemmed Saprolegniasis in wild fish populations
title_sort saprolegniasis in wild fish populations
description The clinical signs and histopathological disturbances produced by Saprolegnia sp. are described in Chondrostomos polylepis and Rutilus albugineus, under environmental stress. The main alterations observed were loss of epithelium leading to ulceration and blood disorders, consisting of blood congestion and occasional hemorrhages. Infected fish developed focal lesions with the fungus invading the stratum spongiosum of the dermis before extending laterally over the epidermis. The onset of disease was brought about by a combination of a rapid fall in water temperature, which probably induced an effect of immunosuppression, and the maintenance of low water temperature, which favored the proliferation of the fungus.
publisher Iniversidad Autónoma de Baja California
publishDate 2001
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/373
_version_ 1715723960883085312

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