Tres metazoos parásitos de la cojinoba Seriolella violacea Guichenot (Pisces, Centrolophidae), Callao, Perú

Iannacone, José

doi:10.1590/s0101-81752003000200014

Cited by 13 publications

(7 citation statements)

References 12 publications

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“…Los resultados muestran ausencia de efecto del sexo de la lorna sobre la prevalencia y abundancia parasitaria. En el presente trabajo se repite el mismo patrón observado en peces de la costa peruana, donde la mayoría de las especies no presentaron diferencias en la prevalencia y abundancia parasitaria con relación al sexo del hospedero (Iannacone, 2003(Iannacone, , 2004. Tabla 2.…”

Section: Discussionunclassified

“…La longitud y sexo del pez hospedero son consideradas como variables ecológicas que se relacionan con la variación de las comunidades parasitarias (Martorelli et al, 2007;Luque & Poulin, 2008). La influencia de la longitud y sexo en las comunidades parasitarias metazorias han sido estudiadas en varios peces marinos del Pacífico Sur como Galeichthyis peruanus (Iannacone & Luque, 1993), Paralonchurus peruanus (Luque & Oliva, 1993), Menticirrhus ophicephalus (Iannacone, 1991;Luque, 1994), Paralichthys adspersus (Steindachner, 1867) (Oliva et al, 1996), Sebastes capensis (González & Acuña, 1998), Trachurus murphyi (Oliva, 1999), Hippoglossina macrops (Steindachner, 1876) (González et al, 2001), Merluccius gayi gayi (Oliva & Ballón, 2002), Seriolella violacea Guichenot (Iannacone, 2003), Cheilodactylus variegatus , Stellifer minor (Iannacone, 2004), Peprilus medius (Peters, 1869) , entre otros.…”

Section: Introductionunclassified

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Variacion entre anos de la fauna de parasitos metazoos de Sciaena deliciosa (Tschudi, 1846) (Perciformes: Sciaenidae) en Lima, Peru

Iannacone

Morón

Guizado

2010

LAJAR

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RESUMEN.Se evalúa la estructura comunitaria de los parásitos de Sciaena deliciosa (Tschudi, 1846), y se analiza si la composición, riqueza, diversidad, prevalencia e intensidad media de sus comunidades parasitarias cambia entre muestras tomadas con 20 años de diferencia en Lima, Perú, entre agosto 1987 y julio 1988 y de agosto a septiembre del 2008 en peces de similar longitud corporal. Los parásitos metazoos fueron colectados y censados empleando las técnicas convencionales. La abundancia total fue de 1,7 (0 a 13) y la riqueza de especies de parásitos fue 0,7 (0 a 2 especies de parásitos por pez). Treinta hospederos mostraron infección con al menos un parásito (60%). Se encontraron siete taxa de parásitos: dos monogeneos Cynoscionicola sciaenae y Hargicotyle sciaenae; un digeneo Helicometra fasciata; un nemátodo Dycheline amaruincai, un acantocéfalo Tegorhynchus sp., y dos copépodos Caligus callaoensis y Lernanthropus huamani. Un análisis comparativo entre los parásitos de S. deliciosa entre 1987-1988 y 2008, muestran una disminución en la prevalencia de Tegorhynchus sp., D. amaruincai, Bomolochus peruensis y Neobrachiella oralis. La intensidad media aumentó para C. americana y Tegorhynchus sp. y disminuyó para C. callaoensis. Las diferencias entre años pudieran estar influenciadas por las variaciones en la temperatura del agua que afectaron los estados larvales y/o reproducción de los copépodos, en la amplitud del periodo de estudio y en el tamaño de la muestra. Palabras clave: parásitos, Sciaena deliciosa, Caligus, Cynoscionicola, Dichelyne, Hargicotyle, Helicometra, Lernanthropus, Tegorhynchus, Perú. Between-year variation of metazoan parasite fauna on Sciaena deliciosa(Tschudi, 1846) (Perciformes: Sciaenidae) in Lima, Peru ABSTRACT. The community structure of parasites on Sciaena deliciosa (Tschudi, 1846), is evaluated and eventual changes are analyzed in the composition, richness, diversity, prevalence and mean intensity of parasite communities on fish specimens that were similar in body length but were sampled 20 years apart (August 1987 to July 1988 vs. August to September 2008) in Lima, Peru. Metazoan parasites were collected and counted employing conventional techniques. Total abundance was 1.7 (0-13) and parasite species richness was 0.7 (0-2 parasite species per fish). Thirsty hosts (60%) were infected by at least with one parasite. Seven parasite taxa were found: two monogeneans (Cynoscionicola sciaenae, Hargicotyle sciaenae), a digenean (Helicometra fasciata), a nematode (Dycheline amaruincai), an acanthocephalan (Tegorhynchus sp.), and two copepods (Caligus callaoensis, Lernanthropus huamani). This comparative analysis (parasites of S. deliciosa in 1987-1988 vs in 2008), showed a decreased prevalence of Tegorhynchus sp., D. amaruincai, Bomolochus peruensis, and Neobrachiella oralis. The mean intensity increased for C. americana and Tegorhynchus sp. and diminished for C. callaoensis. Differences between years could be influenced by variations of sea temperature that affect larval stages and/or cope...

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Section: Discussionunclassified

Section: Introductionunclassified

Variacion entre anos de la fauna de parasitos metazoos de Sciaena deliciosa (Tschudi, 1846) (Perciformes: Sciaenidae) en Lima, Peru

Iannacone

Morón

Guizado

2010

LAJAR

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“…The pronounced differences in abundance and dominance between L. cristatum and the other three species described here and the absence of any association between the species might be due to the fact that each digenean species chooses different intermediate host species or because each digenean species uses its host species in a different way. Iannacone (2003) did not find any digenean species parasitizing Seriolella violacea from Callao, Peru. However, Tantalean and Huiza (1994) cited the Lecithocladium genus in Peruvian waters, although they did not give any details about the host species.…”

Section: Discussionmentioning

confidence: 78%

Digenean trematodes of Seriolella porosa (Pisces, Centrolophidae) in San Matías Gulf, Argentina

Guagliardo¹,

Schwerdt²,

Martorelli³

et al. 2010

Acta Parasitologica

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Seriolella porosa (Silver warehou) is an important fish resource in the Argentine Sea. No previous studies have been carried out to date on its parasite fauna. The present study aims to (i) identify the digenean trematodes that parasitize Silver warehou, (ii) estimate parasite frequency and abundance, and (iii) establish their relationship with fish size and sex. A total of 100 specimens of S. porosa from San Matías Gulf, Argentina were examined between September and October 2006. Host size and sex were determined. Parasites extracted from the stomach lumen were fixed, conserved in 5% formalin, and stained with Langeron's hydrochloric carmine. The following parameters were also determined: dispersion coefficient, prevalence, intensity, and parasite abundance. Differences in parasitism were assessed using non-parametric tests. Four adult digenean species were found in the stomach, namely Lecithocladium cristatum, Aponurus laguncula, Elytrophalloides oatesi and Gonocerca cf. phycidis. L. cristatum was not only dominant but also the most prevalent and abundant species. None of the digeneans showed interspecific association with each other and therefore they might follow different patterns of colonization (i.e., different intermediate hosts, seasonal and/or spatial distribution of the infective stages). Significant differences were observed among the digeneans analyzed in respect to the sex of the host. Results from this study show that Silver warehou plays a key role as a final host of a significant number of digeneans in the ecosystem. This study is the first step in an attempt to further determine the larval stages in intermediate hosts in San Matías Gulf.

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“…Philometra seriolellae Mateo, 1982, a gonad-infecting parasite of the palm ruff Seriolella violacea Guichenot (Centrolophidae), has so far been reported off the Peruvian coast (Mateo 1972(Mateo , 1982Tantaleán and Huiza 1994;Sarmiento et al 1999;Iannacone 2003). Two additional, unidentified Philometra spp.…”

Section: Introductionmentioning

confidence: 99%

A new gonad-infecting species of Philometra (Nematoda: Philometridae) from the red cusk-eel Genypterus chilensis (Osteichthyes: Ophidiidae) off Chile

2010

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A new nematode species, Philometra genypteri sp. n. (Philometridae), is described from male and female specimens found in the ovary of red cusk-eel, Genypterus chilensis (Guichenot) (Ophidiidae, Ophidiiformes), from the eastern South Pacific Ocean off the coast of northern Chile. Based on light and scanning electron microscopy examination, the new species differs from most other gonad-infecting Philometra spp. in the length of spicules (126-135 μm), a gubernaculum with dorsal lamella-like structures on its distal end, and the number and arrangement of genital papillae in the male. From a few congeneric, gonad-infecting species with unknown males, it can be distinguished by some morphological and biometrical features found in gravid female (absence of caudal projections, length of first-stage larvae or oesophagus, moderately developed anterior oesophageal inflation) and by the host type (fish family) and geographical distribution. P. genypteri is the first philometrid species reported from a fish belonging to the order Ophidiiformes and the second nominal species of Philometra recorded from marine fishes of the eastern South Pacific.

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Tres metazoos parásitos de la cojinoba Seriolella violacea Guichenot (Pisces, Centrolophidae), Callao, Perú

Cited by 13 publications

References 12 publications

Variacion entre anos de la fauna de parasitos metazoos de Sciaena deliciosa (Tschudi, 1846) (Perciformes: Sciaenidae) en Lima, Peru

Variacion entre anos de la fauna de parasitos metazoos de Sciaena deliciosa (Tschudi, 1846) (Perciformes: Sciaenidae) en Lima, Peru

Digenean trematodes of Seriolella porosa (Pisces, Centrolophidae) in San Matías Gulf, Argentina

A new gonad-infecting species of Philometra (Nematoda: Philometridae) from the red cusk-eel Genypterus chilensis (Osteichthyes: Ophidiidae) off Chile

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