A Comparative Study of the Common Protozoan Parasites of Heterobranchus 
 longifilis from the Wild and Cultured Environments in Benue State

Omeji, S; Solomon, S. G.; Obande, R. A.

doi:10.3923/pjn.2010.865.872

Cited by 20 publications

(27 citation statements)

References 12 publications

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“…Khan and Thulin [25] reported that urban effluents promote aquatic pollution, thus making aquatic organism vulnerable to increased incidence of parasites. Although female fish were infected with more parasites species, infections were not significant in both males and females of C. gariepinus, these data are similar to the findings of Ayanda [26], who reported higher parasitic infestation in female C. gariepinus than the male as a result of their quest for survival, Omeji et al [27], Emere and Egbe [28] who reported that due to physiological state of the female, most gravid females could have reduced resistance to infestation by parasites. Of all helminth parasites recovered in the present study, they revealed that nematodes have the highest occurrence, while, cestodes showed maximum prevalence recovered from intestine, and these data are coincided by the results obtained by Paperna [10] and Eyo and Iyaji [29] who reported that the high infection of C. gariepinus by cestode parasites could be due to the ingestion of eggs, copepods and mollusks which serve as intermediate hosts of the larval stages of the cestodes.…”

Section: Discussionsupporting

confidence: 80%

“…This could be due to the fact that bigger fish cover wider areas in search of food than the smaller ones and as a result, they take in more food than the smaller ones and this could expose them more to infestation by parasites. This agrees with the previous reports by Ayanda [26], Omeji et al [27] [33] but disagrees with Tasawar et al [34] who reported higher parasite load in smaller fish than the bigger counterparts.…”

Section: Discussioncontrasting

confidence: 35%

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Prevalence and Intensity of Helminth Parasites of African Catfish Clarias gariepinus in Lake Manzala, Egypt

Abdel‐Gaber¹,

Garhy²,

Morsy³

2015

ABB

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The African catfish, Clarias gariepinus, is generally considered to be one of the most important tropical catfish species for aquaculture purposes. Parasitological investigation was performed in two hundred naturally collected fish samples during the period of February to December 2014. The prevalence of gastrointestinal helminth parasites infecting C. gariepinus was investigated. A total of 249 helminth parasites belonging to four genera were recovered from 130 (65%) examined fish samples. They were digenea Orientocreadium batrachoides, cestode Polyonchobothrium clariae, and nematode Procamallanus laevionchus and Camallanus polypteri. Majority of the recorded parasites were found in the intestine. Female fish samples had higher prevalence rate 72 (90%) than males 58 (48.33%), and there was no significant difference (P > 0.05) in infestation rate between the two sexes. The relationship of host size (weight/length) and parasite infection showed that there was no significant difference in the parasitic infection among three classes, although fish of larger sizes had more infections. In addition, this study determines the effect of fish age on the prevalence and intensity of gastrointestinal parasites.

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Section: Discussionsupporting

confidence: 80%

Section: Discussioncontrasting

confidence: 35%

Prevalence and Intensity of Helminth Parasites of African Catfish Clarias gariepinus in Lake Manzala, Egypt

Abdel‐Gaber¹,

Garhy²,

Morsy³

2015

ABB

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“…A high positive correlation (p<0.001) was observed between the intensity of I. multifiliis in the gills and the weight and length of tambacu (Figure 4). Gills are sites of filter feeding; therefore, bigger fish cover wider areas in search of food and, as result, take in more food than smaller ones, with higher exposure to parasites (Omeji et al, 2010). Similar findings were confirmed for Heterobranchus longifilis from natural and cultured environments (Omeji et al, 2010).…”

Section: Resultssupporting

confidence: 70%

“…Suboptimal feeding and poor water quality are stressors that result in impaired growth, which increases the susceptibility to opportunistic parasites and pathogens. However, in fish farms where fish had better nutritional and sanitary conditions, as well as adequate oxygen levels, there was a lower prevalence of this ciliate parasite (Martins et al, 2010;Omeji et al, 2010). Despite the high prevalence, no clinical signs of ichthyophthiriasis were found, showing a chronic parasitism, since in the Amazon region there are no sudden changes in temperatures that may favor the occurrence of acute and severe infections.…”

Section: Resultsmentioning

confidence: 93%

Parasitic fauna in hybrid tambacu from fish farms

Silva

Tavares‐Dias²,

Dias³

et al. 2013

Pesq. agropec. bras.

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-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.Index terms: Colossoma macropomum, Ichthyophthirius multifiliis, Piaractus mesopotamicus, ectoparasite, native fish, host-parasite relationship. Parasitofauna no híbrido tambacu de pisciculturasResumo -O objetivo deste trabalho foi avaliar a parasitofauna de tambacu (Colossoma macropomum x Piaractus mesopotamicus) de pisciculturas e a relação parasito-hospedeiro. Cento e catorze peixes foram coletados de quatro pisciculturas de Macapá, AP, 80,7% dos quais estavam infectados por: Ichthyophthirius multifiliis (Ciliophora); Piscinoodinium pillulare (Dinoflagellida); Anacanthorus spatulatus, Notozothecium janauachensis e Mymarothecium viatorum (Monogenoidea); Neoechinorhynchus buttnerae (Acanthocephala), Cucullanus colossomi (Nematoda); Perulernaea gamitanae (Lernaeidae); e larvas de Proteocephalidae (Cestoda). Um total de 8.136.252 parasitos foram coletados dos peixes examinados. Esse é o primeiro registro de N. buttnerae, C. colossomi, N. janauachensis, M. viatorum e Proteocephalidae para híbridos tambacu no Brasil. Ichtyophthirius multifiliis foi o parasito mais prevalente, enquanto os endohelmintos, os menos. Observou-se correlação positiva entre número de I. multifiliis e comprimento total e peso corporal dos peixes, bem como entre número de P. gamitanae e comprimento total. A infeção por I. multifiliis mostrou associação com o parasitismo por Monogenoidea. A baixa qualidade da água contribui para o alto parasitismo do hibrido tambacu por ectoparasitas, que, no entanto, não influi no fator de condição relativo dos peixes.Termos para indexação: Colossoma macropomum, Ichthyophthirius multifiliis, Piaractus mesopotamicus, ectoparasita, peixe nativo, relação...

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“…Ichthyophthirius multifiliis and P. pilullare are protozoans that are globally widespread and welladapted to different environmental conditions, once these parasites have no parasitic specificity to hosts (Omeji, Solomon, & Obande, 2010;Tavares-Dias et al, 2013;Pantoja et al, 2016). These parasites occur mostly in environments with low oxygen levels, as observed in this study .…”

Section: Discussionsupporting

confidence: 53%

Community of protozoans and metazoans parasitizing Auchenipterus nuchalis (Auchenipteridae), a catfish from the Brazilian Amazon

Tavares‐Dias

2017

Acta Sci. Biol. Sci.

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ABSTRACT. This paper describes the first study on parasite diversity in Auchenipterus nuchalis Spix & Agassiz, 1829 (Auchenipteridae). In 31 fish caught in a tributary of the Amazon River, 10,708 parasites were collected, such as Ichthyophthirius multifiliis, Piscinoodinium pilullare, Cosmetocleithrum striatuli, metacercariae of Posthodiplostomum sp, and larvae and adults of Procamallanus (Spirocamallanus) inopinatus. These parasite species showed aggregated dispersion, except for C. striatuli, which had a uniform dispersion. The component community of parasites showed a low Brillouin diversity (0.67 ± 0.27), low species richness (3.5 ± 0.8) and low evenness (0.43 ± 0.17), and it was characterized by the presence of species with high prevalence and abundance. Protozoan species were the prevalent parasites, which may be a consequence of the host's mode of life, while the low presence of endoparasites in A. nuchalis suggests that this fish may occupy an intermediate trophic level in the food web. These data represent the first record of such parasite species for this host.Keywords: Brazil, diversity, freshwater fish, parasites.Comunidade de protozoários e metazoários parasitando Auchenipterus nuchalis (Auchenipteridae) da Amazônia brasileira RESUMO. Este artigo descreve o primeiro estudo sobre a diversidade parasitária em Auchenipterus nuchalis Spix & Agassiz, 1829 (Auchenipteridae). Em 31 peixes capturados em um afluente do Rio Amazonas, 10.708 parasitos foram coletados, entre esses Ichthyophthirius multifiliis, Piscinoodinium pilullare, Cosmetocleithrum striatuli, metacercárias de Posthodiplostomum sp. e larvas e adultos de Procamallanus (Spirocamallanus) inopinatus. Estas espécies tiveram uma dispersão agregada, exceto C. striatuli, que apresentou dispersão uniforme. A comunidade componente de parasitos mostrou uma baixa diversidade Brillouin (0,67 ± 0,27), baixa riqueza de espécies (3,5 ± 0,8), baixa uniformidade (0,43 ± 0,17) e foi caracterizada pela presença de espécies com elevada prevalência e abundância. As espécies de protozoários foram os parasitos mais prevalentes, provavelmente seja uma consequência do modo de vida do hospedeiro, enquanto a baixa presença de endoparasitos em A. nuchalis sugere que este peixe pode ocupar um nível trófico intermediário na cadeia alimentar. Estes dados representam o primeiro registro de tais espécies de parasitos para este hospedeiro.Palavras-chave: Brasil, diversidade, peixes de água doce, parasitos.

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A Comparative Study of the Common Protozoan Parasites of Heterobranchus longifilis from the Wild and Cultured Environments in Benue State

Cited by 20 publications

References 12 publications

Prevalence and Intensity of Helminth Parasites of African Catfish <i>Clarias gariepinus</i> in Lake Manzala, Egypt

Prevalence and Intensity of Helminth Parasites of African Catfish <i>Clarias gariepinus</i> in Lake Manzala, Egypt

Parasitic fauna in hybrid tambacu from fish farms

<b>Community of protozoans and metazoans parasitizing <i>Auchenipterus nuchalis</i> (Auchenipteridae), a catfish from the Brazilian Amazon

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A Comparative Study of the Common Protozoan Parasites of Heterobranchus longifilis from the Wild and Cultured Environments in Benue State

Cited by 20 publications

References 12 publications

Prevalence and Intensity of Helminth Parasites of African Catfish &lt;i&gt;Clarias gariepinus&lt;/i&gt; in Lake Manzala, Egypt

Prevalence and Intensity of Helminth Parasites of African Catfish &lt;i&gt;Clarias gariepinus&lt;/i&gt; in Lake Manzala, Egypt

Parasitic fauna in hybrid tambacu from fish farms

<b>Community of protozoans and metazoans parasitizing <i>Auchenipterus nuchalis</i> (Auchenipteridae), a catfish from the Brazilian Amazon

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Prevalence and Intensity of Helminth Parasites of African Catfish <i>Clarias gariepinus</i> in Lake Manzala, Egypt

Prevalence and Intensity of Helminth Parasites of African Catfish <i>Clarias gariepinus</i> in Lake Manzala, Egypt