Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus

The chondracanthid copepod Pseudochondracanthus diceraus is a parasite commonly found on the gills of wild bullseye puffer fish, Sphoeroides annulatus, in Sinaloa, Mexico. This paper provides the first description of some blood parameters and gill histology of wild bullseye puffer fish infected by a...

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Autores principales:	Fajer-Ávila,Emma Josefina, Guzman-Beltran,Leslie, Zárate-Rodríguez,Walter Camilo, Del Río-Zaragoza,Oscar Basilio, Almazan-Rueda,Pablo
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2011
Materias:	Chondracanthid fish haematology histopathology Mexico
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572011000300001
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spelling	oai:scielo:S0718-195720110003000012012-05-10Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatusFajer-Ávila,Emma JosefinaGuzman-Beltran,LeslieZárate-Rodríguez,Walter CamiloDel Río-Zaragoza,Oscar BasilioAlmazan-Rueda,Pablo Chondracanthid fish haematology histopathology Mexico The chondracanthid copepod Pseudochondracanthus diceraus is a parasite commonly found on the gills of wild bullseye puffer fish, Sphoeroides annulatus, in Sinaloa, Mexico. This paper provides the first description of some blood parameters and gill histology of wild bullseye puffer fish infected by an adult parasitic copepod P. diceraus. Sixty two wild fish were acclimatized for 15 days in experimental tanks, and then on days 16 and 21, samples were taken. Results showed a 100% prevalence and a mean intensity of 7.16 (1-17) copepods per fish. P. diceraus preferred the anterior and posterior sector of each gill arch. The percentage of leukocytes was significantly lower in fish with the highest intensity of infection. The gill response of the host was most evident near the parasite's attachment site. It was characterised by hyperplasia and fusion of secondary lamellae, chondrocyte hyperplasia of primary lamellae, atrophy of the lamellar epithelium and an increase in the number of mucous cells. The damaged gill tissue of the bullseye puffer fish was caused by the large and strong antennae of P. diceraus that is modified as a claw to attach to the host gills. Thus, a high prevalence and intensity of this copepod could become a potential health risk to the bullseye puffer fish culture.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.46 n.3 20112011-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572011000300001en10.4067/S0718-19572011000300001
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chondracanthid fish haematology histopathology Mexico
spellingShingle	Chondracanthid fish haematology histopathology Mexico Fajer-Ávila,Emma Josefina Guzman-Beltran,Leslie Zárate-Rodríguez,Walter Camilo Del Río-Zaragoza,Oscar Basilio Almazan-Rueda,Pablo Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus
description	The chondracanthid copepod Pseudochondracanthus diceraus is a parasite commonly found on the gills of wild bullseye puffer fish, Sphoeroides annulatus, in Sinaloa, Mexico. This paper provides the first description of some blood parameters and gill histology of wild bullseye puffer fish infected by an adult parasitic copepod P. diceraus. Sixty two wild fish were acclimatized for 15 days in experimental tanks, and then on days 16 and 21, samples were taken. Results showed a 100% prevalence and a mean intensity of 7.16 (1-17) copepods per fish. P. diceraus preferred the anterior and posterior sector of each gill arch. The percentage of leukocytes was significantly lower in fish with the highest intensity of infection. The gill response of the host was most evident near the parasite's attachment site. It was characterised by hyperplasia and fusion of secondary lamellae, chondrocyte hyperplasia of primary lamellae, atrophy of the lamellar epithelium and an increase in the number of mucous cells. The damaged gill tissue of the bullseye puffer fish was caused by the large and strong antennae of P. diceraus that is modified as a claw to attach to the host gills. Thus, a high prevalence and intensity of this copepod could become a potential health risk to the bullseye puffer fish culture.
author	Fajer-Ávila,Emma Josefina Guzman-Beltran,Leslie Zárate-Rodríguez,Walter Camilo Del Río-Zaragoza,Oscar Basilio Almazan-Rueda,Pablo
author_facet	Fajer-Ávila,Emma Josefina Guzman-Beltran,Leslie Zárate-Rodríguez,Walter Camilo Del Río-Zaragoza,Oscar Basilio Almazan-Rueda,Pablo
author_sort	Fajer-Ávila,Emma Josefina
title	Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus
title_short	Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus
title_full	Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus
title_fullStr	Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus
title_full_unstemmed	Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus
title_sort	pathology caused by adult pseudochondracanthus diceraus (copepoda:chondracanthidae), a parasite of bullseye puffer fish sphoeroides annulatus
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572011000300001
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Pathology caused by adult Pseudochondracanthus diceraus (Copepoda:Chondracanthidae), a parasite of bullseye puffer fish Sphoeroides annulatus

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