INVESTIGADORES
VAZQUEZ Nuria Natalia
artículos
Título:
A histopathological survey of the razor clam Ensis macha (Pharidae) along the Patagonian Argentina coast
Autor/es:
VÁZQUEZ NURIA; PÉREZ BRUNO, ELIZABETH; MÁRQUEZ, FEDERICO; VAN DER MOLEN, SILVINA; GILARDONI, CARMEN; CREMONTE FLORENCIA
Revista:
JOURNAL OF INVERTEBRATE PATHOLOGY
Editorial:
ACADEMIC PRESS INC ELSEVIER SCIENCE
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 12 p. 253 - 259
ISSN:
0022-2011
Resumen:
This is the first study performed to determine the health status of the razor clam, Ensis macha, including
six different populations along Argentina Patagonian coast and one of Chile. The parasites and pathologies
affecting E. macha were analyzed and their prevalence and mean intensity values were calculated.
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
six different populations along Argentina Patagonian coast and one of Chile. The parasites and pathologies
affecting E. macha were analyzed and their prevalence and mean intensity values were calculated.
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
Ensis macha, including
six different populations along Argentina Patagonian coast and one of Chile. The parasites and pathologies
affecting E. macha were analyzed and their prevalence and mean intensity values were calculated.
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
E. macha were analyzed and their prevalence and mean intensity values were calculated.
To establish which factors affect the presence and intensity of infection, Generalized Linear Models
(GLMs) were applied. Basophilic inclusions, ciliates, coccidians protozoans and turbellarians were found.
We report an Aporocotylidae digenean and hemocyte infiltrations. None of the parasites is OIE (World
Organisation for Animal Health) notifiable, and none seemed to be pathogenic, with the exception of
the digenean. The prevalence of the parasites was affected mainly by environmental factors (such as site
of sampling and season) instead of intrinsic conditions of the clam (such as size, condition index, sex and
gonadal stage). On the other hand, the maximum intensity of parasites was not only related with cold
seasons but also with the partially spawned gonadal stage of E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites
E. macha. During this stage, the clams would
need to store energy for the next gametogenesis cycle, might be more susceptible to infection by the
parasites