Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions

This study aimed to verify preferences for microhabitat by the monogeneans on the gills of the south american catfish, Rhamdia quelen (Quoy & Gaimard, 1824), at different stocking densities under controlled laboratory conditions. Three stocking densities were used: 14, 28 and 42 fish per tank (5...

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Main Authors: Debortoli J. A., Lacerda A. C. F., Lisboa T. R., Martins M. L.
Format: Article
Language:English
Published: Sciendo 2016-03-01
Series:Helminthologia
Subjects:
Online Access:https://doi.org/10.1515/helmin-2015-0067
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author Debortoli J. A.
Lacerda A. C. F.
Lisboa T. R.
Martins M. L.
author_facet Debortoli J. A.
Lacerda A. C. F.
Lisboa T. R.
Martins M. L.
author_sort Debortoli J. A.
collection DOAJ
description This study aimed to verify preferences for microhabitat by the monogeneans on the gills of the south american catfish, Rhamdia quelen (Quoy & Gaimard, 1824), at different stocking densities under controlled laboratory conditions. Three stocking densities were used: 14, 28 and 42 fish per tank (50 L) and the fish were sampled initially, at day 5 and 10 of the experiment. Aphanoblastella mastigatus (Suriano, 1986) was noted as the most abundant species at all stocking densities, except for the initial collection day. The gill arches I and II were the most parasitized, showing the highest mean abundance in the dorsal region, at the highest density. The pattern of microhabitat preference of A. mastigatus for outer regions of the gills of the host was independent of the stocking density and collection day. Higher prevalence and abundance of Scleroductus sp. at the initial collection reflected the parasitic infection of the fish at the farm from where the fish were taken. The abundance of Scleroductus sp. decreased along the experiment, and no preference for gill arches was recorded for the species, probably due to the low abundance of this parasite on the gills.
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spelling doaj.art-16ef3adc3228461cb44ec5bfc73a78152023-09-02T14:21:53ZengSciendoHelminthologia0440-66051336-90832016-03-01531556110.1515/helmin-2015-0067helmin-2015-0067Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditionsDebortoli J. A.0Lacerda A. C. F.1Lisboa T. R.2Martins M. L.3AQUOS – Aquatic Organisms Health Laboratory, Aquaculture Department, CCA, Federal University of Santa Catarina, Rod. Admar Gonzaga, 1346, 88040-900, Florianópolis, SC, BrazilFederal University of Paraíba, Department of Systematics and Ecology, CCEN,, Castelo Branco, 58051-900, João Pessoa, PB, BrazilAQUOS – Aquatic Organisms Health Laboratory, Aquaculture Department, CCA, Federal University of Santa Catarina, Rod. Admar Gonzaga, 1346, 88040-900, Florianópolis, SC, BrazilAQUOS – Aquatic Organisms Health Laboratory, Aquaculture Department, CCA, Federal University of Santa Catarina, Rod. Admar Gonzaga, 1346, 88040-900, Florianópolis, SC, BrazilThis study aimed to verify preferences for microhabitat by the monogeneans on the gills of the south american catfish, Rhamdia quelen (Quoy & Gaimard, 1824), at different stocking densities under controlled laboratory conditions. Three stocking densities were used: 14, 28 and 42 fish per tank (50 L) and the fish were sampled initially, at day 5 and 10 of the experiment. Aphanoblastella mastigatus (Suriano, 1986) was noted as the most abundant species at all stocking densities, except for the initial collection day. The gill arches I and II were the most parasitized, showing the highest mean abundance in the dorsal region, at the highest density. The pattern of microhabitat preference of A. mastigatus for outer regions of the gills of the host was independent of the stocking density and collection day. Higher prevalence and abundance of Scleroductus sp. at the initial collection reflected the parasitic infection of the fish at the farm from where the fish were taken. The abundance of Scleroductus sp. decreased along the experiment, and no preference for gill arches was recorded for the species, probably due to the low abundance of this parasite on the gills.https://doi.org/10.1515/helmin-2015-0067fishparasitologymonogeneanectoparasitesecology
spellingShingle Debortoli J. A.
Lacerda A. C. F.
Lisboa T. R.
Martins M. L.
Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions
Helminthologia
fish
parasitology
monogenean
ectoparasites
ecology
title Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions
title_full Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions
title_fullStr Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions
title_full_unstemmed Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions
title_short Preference for microhabitat by Monogenea on the gills of the south american catfish Rhamdia quelen at different stocking densities under laboratory conditions
title_sort preference for microhabitat by monogenea on the gills of the south american catfish rhamdia quelen at different stocking densities under laboratory conditions
topic fish
parasitology
monogenean
ectoparasites
ecology
url https://doi.org/10.1515/helmin-2015-0067
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