Effect of temperature changes on the cercarial-shedding rate of two trematodes

Since temperature is a key condition in the initiation of cercarial emergence, the objective of the work reported here was to evaluate the effect of that variable on the shedding of two morphologic and taxonomic types of cercariae. Bioassays were accordingly performed with snails naturally infected...

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Detalles Bibliográficos
Autores principales: Achiorno, Cecilia Luján, Martorelli, Sergio Roberto
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Zoología
Bioassay
Cercarial emergence
Freshwater
Parasites
Temperature
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/86082
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-86082
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Zoología
Bioassay
Cercarial emergence
Freshwater
Parasites
Temperature
spellingShingle Zoología
Bioassay
Cercarial emergence
Freshwater
Parasites
Temperature
Achiorno, Cecilia Luján
Martorelli, Sergio Roberto
Effect of temperature changes on the cercarial-shedding rate of two trematodes
topic_facet Zoología
Bioassay
Cercarial emergence
Freshwater
Parasites
Temperature
description Since temperature is a key condition in the initiation of cercarial emergence, the objective of the work reported here was to evaluate the effect of that variable on the shedding of two morphologic and taxonomic types of cercariae. Bioassays were accordingly performed with snails naturally infected with either monostome or pleurolophocercous cercariae because those two cercarial types were found to be the most prevalent in the environment under study. The snails were placed in 6-ml circular plastic dishes with soft plastic stoppers containing 3 ml of reconstituted water and then sequentially exposed for 24 h to a 14:10-h light:dark cycle at 20, 25, or 30 °C. The data were analyzed at a significance level of p <0.05 by means of the InfoStat program. The optimum temperature for cercarial emergence was typically in the range of 25 °C and decreased significantly at 30 °C. We observed no significant difference in the number of cercariae emerging between the two morphologic types.
format Articulo
Articulo
author Achiorno, Cecilia Luján
Martorelli, Sergio Roberto
author_facet Achiorno, Cecilia Luján
Martorelli, Sergio Roberto
author_sort Achiorno, Cecilia Luján
title Effect of temperature changes on the cercarial-shedding rate of two trematodes
title_short Effect of temperature changes on the cercarial-shedding rate of two trematodes
title_full Effect of temperature changes on the cercarial-shedding rate of two trematodes
title_fullStr Effect of temperature changes on the cercarial-shedding rate of two trematodes
title_full_unstemmed Effect of temperature changes on the cercarial-shedding rate of two trematodes
title_sort effect of temperature changes on the cercarial-shedding rate of two trematodes
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/86082
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