Parasitic fauna in hybrid tambacu from fish farms

The objective of this work was to evaluate the parasitic fauna of hybrid tambacu (Colossoma macropomum x Piaractus mesopotamicus) from fish farms and the host-parasite relationship. A hundred and fourteen fish were collected from four fish farms in Macapá, in the state of Amapá, Brazil, 80.7% of which were infected by: Ichthyophthirius multifiliis (Ciliophora); Piscinoodinium pillulare (Dinoflagellida); Anacanthorus spatulatus, Notozothecium janauachensis, and Mymarothecium viatorum (Monogenoidea); Neoechinorhynchus buttnerae (Acanthocephala); Cucullanus colossomi (Nematoda); Perulernaea gamitanae (Lernaeidae); and Proteocephalidae larvae (Cestoda). A total of 8,136,252 parasites were collected from the examined fish. This is the first record of N. buttnerae, C. colossomi, N. janauachensis, M. viatorum, and Proteocephalidae for hybrid tambacu in Brazil. Ichthyophthirius multifiliis was the most prevalent parasite, whereas endohelminths were the less. A positive correlation was observed between number of I. multifiliis and total length and weight of fish, as well as between number of P. gamitanae and total length. The infection by I. multifiliis had association with the parasitism by Monogenoidea. Low water quality contributes to high parasitism of hybrid tambacu by ectoparasites, which, however, does not influence the relative condition factor of fish.

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Helminthes and protozoan of farmed pirarucu (Arapaima gigas) in eastern Amazon and host-parasite relationship

Arquivo Brasileiro de Medicina Veterinária e Zootecnia ◽

10.1590/s0102-09352013000400035 ◽

2013 ◽

Vol 65 (4) ◽

pp. 1192-1202 ◽

Cited By ~ 27

Author(s):

R.G.B. Marinho ◽

M. Tavares-Dias ◽

M.K.R. Dias-Grigório ◽

L.R. Neves ◽

E.T.O. Yoshioka ◽

...

Keyword(s):

Amazon Basin ◽

Ichthyophthirius Multifiliis ◽

Infection Rates ◽

Fish Farms ◽

Total Length ◽

Relative Condition Factor ◽

Arapaima Gigas ◽

Host Parasite Relationship ◽

Parasite Relationship ◽

Host Parasite

The parasitofauna in the giant Amazon basin, pirarucu (Arapaima gigas Schinz, 1822) cultured in fish farms from the state of Amapá, in eastern Amazonia (Brazil) was investigated. Of the 100 examined fish, 90.0% were parasitized by Ichthyophthirius multifiliis (Ciliophora), Dawestrema cycloancistrium, Dawestrema cycloancistrioides (Monogenoidea) and Polyacanthorhynchus macrorhynchus (Acanthocephala), which had an aggregated distribution pattern. The highest infection rates were caused by I. multifiliis and the lowest by P. macrorhynchus. Infection rates were different for each fish farm, due to different water quality and management characteristics. A negative correlation was found between the intensity of monogenoideans D. cycloancistrium and D. cycloancistrioides and the relative condition factor (Kn), but the welfare of fish was not affected by parasitism. The number of I. multifiliis was positively correlated with the weight and total length of hosts, while the intensity of monogenoideans was negatively correlated with body weight and total length. This study is the first to record the occurrence of P. macrorhynchus in A. gigas farmed in Amazon.

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Protozoan infections in farmed fish from Brazil: diagnosis and pathogenesis

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612015013 ◽

2015 ◽

Vol 24 (1) ◽

pp. 1-20 ◽

Cited By ~ 24

Author(s):

Mauricio Laterça Martins ◽

Lucas Cardoso ◽

Natalia Marchiori ◽

Santiago Benites de Pádua

Keyword(s):

Correct Diagnosis ◽

Protozoan Parasites ◽

Fish Farms ◽

Farmed Fish ◽

Fish Diseases ◽

The World ◽

Host Parasite Relationship ◽

Parasite Relationship ◽

Protozoan Infections ◽

Host Parasite

The Phylum Protozoa brings together several organisms evolutionarily different that may act as ecto or endoparasites of fishes over the world being responsible for diseases, which, in turn, may lead to economical and social impacts in different countries. Apart from the recent advances for the diagnosis of fish diseases in Brazil, little is known on the protozoan parasites and their relationship with environment and host. This revision presents the most important protozoan parasites found in farmed fish from Brazil, not only with emphasis on its diagnosis, biology, transmission and host-parasite relationship, but also on some information that may be useful to researchers in determining the correct diagnosis in fish farms.

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First record of Neoechinorhynchus buttnerae (Eoacantocephala, Neochinorhynchidae) on Colossoma macropomum (Characidae) in a fish farm in Roraima, Brazil

Acta Amazonica ◽

10.1590/1809-4392201702411 ◽

2018 ◽

Vol 48 (1) ◽

pp. 42-45 ◽

Cited By ~ 7

Author(s):

Jeffson Nobre PEREIRA ◽

Germán Augusto Murrieta MOREY

Keyword(s):

Condition Factor ◽

First Record ◽

Fish Farm ◽

Fish Farms ◽

Colossoma Macropomum ◽

Relative Condition Factor ◽

Severe Infections ◽

Northern Brazil ◽

Positive Correlations ◽

First Time

ABSTRACT Severe infections by the acanthocephalan Neoechinorhynchus buttnerae were reported in Colossoma macropomum in fish farms in northern Brazil. The occurrence of the parasite is recorded for the first time in the state of Roraima, Brazil, along with its parasite indexes. Fifty C. macropomum from a fish farm were analyzed. We collected a total of 13474 individual parasites. Neoechinorhynchus buttnerae had a prevalence of 100%, and mean intensity and mean abundance of 269.48. Significant positive correlations were observed between fish standard length, weight and relative condition factor and the number of parasites. Our results showed evident loss of body mass in the parasitized fish. Fish farmers in Roraima should be advised to manage the infection of C. macropomum by N. buttnerae, as massive infections of this parasite can deteriorate the health of the fish.

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Protozoan and metazoan parasites of Nile tilapia Oreochromis niloticus cultured in Brazil

Revista Mvz Córdoba ◽

10.21897/rmvz.248 ◽

2012 ◽

pp. 2812-2819 ◽

Cited By ~ 13

Author(s):

Wanderson Pantoja MF ◽

Ligia Neves R ◽

Márcia Dias RD ◽

Renata Marinho GB ◽

Daniel Montagner ◽

...

Keyword(s):

Oreochromis Niloticus ◽

Nile Tilapia ◽

Condition Factor ◽

First Record ◽

The State ◽

Parasitic Infections ◽

Fish Farms ◽

Metazoan Parasites ◽

Relative Condition Factor ◽

Nile Tilapia Oreochromis Niloticus

ABSTRACTObjective. This study describes the parasitic fauna and relative condition factor (Kn) in Nile tilapia Oreochromis niloticus L. (Cichlidae) from fish farms in the State of Amapá. Material and methods. 123 fish from four fish farms in the state of Amapá, Brazil were necropsied for parasitological and Kn analysis. Results. 64.2% of the examined fish, had the gills infected with Cichlidogyrus tilapiae Paperna, 1960 (Monogenoidea: Dactylogyridae); Ichthyophthirius multifiliis Fouquet, 1876 (Protozoa: Ciliophora), Trichodina Ehrenberg, 1830 and Paratrichodina africana Kazubski & El-Tantawy, 1986 (Protozoa: Trichodinidae). The highest prevalence found corresponded to Monogenoidea C. tilapiae while the lowest corresponded to Trichodinidae. However, I. multifiliis was the parasite that presented the greatest intensity and abundance. The differences found in the infection rates of the different fish farms due to causes further discussed. The parasitism did not influence the relative condition factor (Kn) of fish. This was the first record of P. africana in Brazil and occurred in the Eastern Amazon. Conclusions. In Brazil, Lamproglena sp. is an emerging parasite in the Southern and Southeastern regions, but this crustacean was not found in the Nile tilapia in the State of Amapá. The parasitic infections in Nile tilapia farmed in Brazil are caused by protozoan, monogenoidea, crustacea and digenea species, and the regional differences on their prevalence and intensity rates are discussed in this study.

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The Influence of Antibiotics on the Host-Parasite Relationship II

10.1007/978-3-642-70748-3 ◽

1985 ◽

Cited By ~ 2

Keyword(s):

Host Parasite Relationship ◽

Parasite Relationship ◽

Host Parasite

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Susceptibilities of Various Snail Intermediate Hosts of Schistosoma mansoni to Different Strains of the Parasite

Journal of Helminthology ◽

10.1017/s0022149x00020770 ◽

1965 ◽

Vol 39 (4) ◽

pp. 363-376 ◽

Cited By ~ 19

Author(s):

M.F.A. Saoud

Keyword(s):

Puerto Rico ◽

Schistosoma Mansoni ◽

Intermediate Hosts ◽

Considerable Evidence ◽

The Past ◽

Host Parasite Relationship ◽

Parasite Relationship ◽

Different Strains ◽

Host Parasite ◽

Comprehensive Studies

In the past two decades, considerable evidence has accumulated in the literature about the differences in the susceptibility of various intermediate hosts of Schistosoma mansoni to different strains of the parasite. Comprehensive studies on this aspect of host-parasite relationship have been published by Files & Cram (1949), Abdel-Malek (1950) and Files (1951). The results of more recent studies have been reported by Wright (1962) and Saoud (1964).In the present paper, the writer has studied the susceptibility of four intermediate hosts of S. mansoni from Brazil, Puerto Rico, Egypt and Tanganyika to some strains of the parasite.

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Parasitological assessment in the hybrid surubim (Pseudoplatystoma reticulatum x P. corruscans), with uncommon occurrence of Monogenea parasites

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612016037 ◽

2016 ◽

Vol 25 (2) ◽

pp. 179-186 ◽

Cited By ~ 7

Author(s):

Gabriela Tomas Jerônimo ◽

Santiago Benites de Pádua ◽

Arlene Sobrinho Ventura ◽

Eduardo Luis Tavares Gonçalves ◽

Márcia Mayumi Ishikawa ◽

...

Keyword(s):

Management Practices ◽

Cold Season ◽

Parasite Fauna ◽

Ichthyophthirius Multifiliis ◽

Fish Farms ◽

Mato Grosso ◽

Central Brazil ◽

Ecological Concern ◽

Host Parasite ◽

Mato Grosso Do Sul

Abstract This study evaluated the parasite fauna of farmed hybrid surubim (Pseudoplatystoma reticulatum x P. corruscans) and the host-parasite-environment relationship in two fish farms located in Mato Grosso do Sul, Central Brazil, South America. A total of 120 hybrids from two different farms, 60 in each season (30 in the hot and 30 in cold season) were examined during a year. Water quality was weekly measured to evaluate the interaction among environmental conditions and parasitism. Histopathology was used to observe the effects of the parasites and environment on the fish gills. The ciliate protozoan Ichthyophthirius multifiliis and the monogeneans (Ameloblastella sp., Amphocleithrium paraguayensis, Vancleaveus ciccinus, V. fungulus and V. janacauensis) were the most prevalent parasites detected in both seasons in both farms, with prevalence above 80%. It was stated that parasites did not cause important damage in the health status of the hybrid surubim. These results might be related to general good management practices and environmental quality implemented by the fish farmers. The presence of uncommon monogenean parasites to this hybrid compared to their parents causing an environmental and ecological concern is here discussed.

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