Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak
Marine fish culture, both in hatchery and grow-out systems, is prone to parasitic infestations, which lead to fish health impairment and generally high mortality rates. The most frequent disease in these cultures, amyloodiniosis, is caused by the dinoflagellate Amyloodinium ocellatum, the parasite c...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Online |
| Lenguaje: | eng |
| Publicado: |
Iniversidad Autónoma de Baja California
2018
|
| Acceso en línea: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2858 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:cienciasmarinas.com.mx:article-2858 |
|---|---|
| record_format |
ojs |
| institution |
Ciencias Marinas |
| collection |
OJS |
| language |
eng |
| format |
Online |
| author |
Vivanco-Aranda, Miroslava Del Río-Zaragoza, Oscar B Lechuga-Sandoval, Claudia E Viana, María Teresa Rombenso, Artur N |
| spellingShingle |
Vivanco-Aranda, Miroslava Del Río-Zaragoza, Oscar B Lechuga-Sandoval, Claudia E Viana, María Teresa Rombenso, Artur N Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak |
| author_facet |
Vivanco-Aranda, Miroslava Del Río-Zaragoza, Oscar B Lechuga-Sandoval, Claudia E Viana, María Teresa Rombenso, Artur N |
| author_sort |
Vivanco-Aranda, Miroslava |
| title |
Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak |
| title_short |
Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak |
| title_full |
Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak |
| title_fullStr |
Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak |
| title_full_unstemmed |
Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak |
| title_sort |
health response in yellowtail seriola dorsalis exposed to an amyloodinium ocellatum outbreak |
| description |
Marine fish culture, both in hatchery and grow-out systems, is prone to parasitic infestations, which lead to fish health impairment and generally high mortality rates. The most frequent disease in these cultures, amyloodiniosis, is caused by the dinoflagellate Amyloodinium ocellatum, the parasite considered to inflict the most considerable damage on commercial marine fish ventures. In recent years, the yellowtail Seriola dorsalis cultured in Baja California has undergone recurrent parasitic infections. Thus, the objective of the present work was to evaluate the effects of a parasitic infection (A. ocellatum) in juvenile yellowtail in terms of mortality, gill histology, and blood parameters. Fish exposed to parasitic infection exhibited 100% prevalence, with mean intensity of 766 ± 500 parasites per fish (grand mean ± SD). Gill histological analyses indicated damage characterized by inflammation, epithelial detachment, hyperplasia, fusion of secondary lamellae, telangiectasia, and proliferation of mucous cells. Regarding blood parameters, red blood cell count, mean corpuscular hemoglobin concentration, and hemoglobin, glucose, and triglyceride concentrations were significantly higher (P < 0.05) in infected fish (parasite prevalence of 100% with a mean intensity of 882.19 ± 265.05 parasites per fish) than in healthy ones. Also, mean corpuscular volume, total protein, albumin, and globulin were significantly lower (P < 0.05) in infected fish than in healthy fish. No differences were found in the hematocrit, mean corpuscular hemoglobin, and white blood cell count (P > 0.05). This study demonstrated that A. ocellatum infection caused severe gill damage, affecting gas exchange efficiency, which resulted in blood parameter changes and, consequently, high mortality rates in a short-term period. |
| publisher |
Iniversidad Autónoma de Baja California |
| publishDate |
2018 |
| url |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2858 |
| _version_ |
1792606975729598464 |
| spelling |
oai:cienciasmarinas.com.mx:article-28582024-03-03T15:45:37Z Health response in yellowtail Seriola dorsalis exposed to an Amyloodinium ocellatum outbreak Respuesta de salud en el jurel de Castilla (Seriola dorsalis) expuesto a un brote de Amyloodinium ocellatum Vivanco-Aranda, Miroslava Del Río-Zaragoza, Oscar B Lechuga-Sandoval, Claudia E Viana, María Teresa Rombenso, Artur N Marine fish culture, both in hatchery and grow-out systems, is prone to parasitic infestations, which lead to fish health impairment and generally high mortality rates. The most frequent disease in these cultures, amyloodiniosis, is caused by the dinoflagellate Amyloodinium ocellatum, the parasite considered to inflict the most considerable damage on commercial marine fish ventures. In recent years, the yellowtail Seriola dorsalis cultured in Baja California has undergone recurrent parasitic infections. Thus, the objective of the present work was to evaluate the effects of a parasitic infection (A. ocellatum) in juvenile yellowtail in terms of mortality, gill histology, and blood parameters. Fish exposed to parasitic infection exhibited 100% prevalence, with mean intensity of 766 ± 500 parasites per fish (grand mean ± SD). Gill histological analyses indicated damage characterized by inflammation, epithelial detachment, hyperplasia, fusion of secondary lamellae, telangiectasia, and proliferation of mucous cells. Regarding blood parameters, red blood cell count, mean corpuscular hemoglobin concentration, and hemoglobin, glucose, and triglyceride concentrations were significantly higher (P < 0.05) in infected fish (parasite prevalence of 100% with a mean intensity of 882.19 ± 265.05 parasites per fish) than in healthy ones. Also, mean corpuscular volume, total protein, albumin, and globulin were significantly lower (P < 0.05) in infected fish than in healthy fish. No differences were found in the hematocrit, mean corpuscular hemoglobin, and white blood cell count (P > 0.05). This study demonstrated that A. ocellatum infection caused severe gill damage, affecting gas exchange efficiency, which resulted in blood parameter changes and, consequently, high mortality rates in a short-term period. El cultivo de peces marinos, tanto en el criadero como en el cultivo para engorda, es vulnerable a la incidencia de parásitos, lo que afecta la salud de los peces y, en general, conduce a altas tasas de mortalidad. La enfermedad más frecuente en estos cultivos, la amiloodiniosis, es causada por el dinoflagelado Amyloodinium ocellatum, considerado el parásito que inflige el daño más considerable a las empresas comerciales de peces marinos. En los últimos años, el jurel Seriola dorsalis cultivado en Baja California ha padecido infestaciones parasitarias recurrentes. Por lo tanto, el objetivo del presente trabajo fue evaluar los efectos de una infestación parasitaria (A. ocellatum) en juveniles de jurel en términos de mortalidad, histología de las branquias y parámetros sanguíneos. Los peces expuestos a la infestación parasitaria exhibieron una prevalencia del 100% con una intensidad media de 766 ± 500 parásitos por pez (gran promedio ± desviación estándar). El análisis histológico de las branquias indicó daño caracterizado por inflamación, desprendimiento epitelial, hiperplasia, fusión de las lamelas secundarias, telangiectasia y proliferación de células del mucus. Con respecto a los parámetros sanguíneos, el recuento de glóbulos rojos, la concentración de la hemoglobina corpuscular media, y las concentraciones de hemoglobina, glucosa y triglicéridos fueron significativamente mayores (P < 0.05) en peces infestados (prevalencia parasitaria del 100% con una intensidad media de 882.19 ± 265.05 parásitos por pez) que en peces sanos. Además, el volumen corpuscular medio, la proteína total, la albúmina y la globulina fueron significativamente más bajos (P < 0.05) en los peces infestados que en los peces sanos. No se encontraron diferencias en el hematocrito, la hemoglobina corpuscular media y los recuentos de glóbulos blancos (P > 0.05). Este estudio demostró que la infestación por A. ocellatum causó daños severos en las branquias que afectaron la eficiencia del intercambio de gases, lo que resultó en cambios en los parámetros sanguíneos y, en consecuencia, altas tasas de mortalidad en un corto periodo de tiempo. Iniversidad Autónoma de Baja California 2018-12-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf text/xml text/xml https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2858 10.7773/cm.v44i4.2858 Ciencias Marinas; Vol. 44 No. 4 (2018); 267–277 Ciencias Marinas; Vol. 44 Núm. 4 (2018); 267–277 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2858/420420455 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2858/420421016 https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2858/420420631 Copyright (c) 2018 Ciencias Marinas https://creativecommons.org/licenses/by/4.0 |
@UABCInstitucional
UABC_Oficial
@UABC_Oficial
Tel: +52 686 551 82 00
cienciaabierta@uabc.edu.mx