Aspectos Poblacionales del Pejerrey Odontesthes Bonariensis en el Embalse Río Tercero, Córdoba

Mancini, Miguel; Grosman, Fabián

doi:10.14409/natura.v2i29.3732

Cited by 8 publications

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“…The parasite life cycle is favored by summer temperatures, as it has been reported in other species by Marcogliese (1991). In addition, the winter prevalences observed were lower than those reported for other lakes in the region (MANCINI; GROSMAN, 1998).…”

Section: Discussioncontrasting

confidence: 67%

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Seasonal variation of parasitism in pejerrey Odontesthes bonariensis (Atheriniformes, Atherinopsidae) from La Viña reservoir (Córdoba, Argentina)

Mancini

Bucco²,

Salinas

et al. 2008

Rev. Bras. Parasitol. Vet.

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The pejerrey Odontesthes bonariensis is the most important freshwater fish of Argentina central region. The present study was conducted to describe the seasonal variation of parasitism in O. bonariensis from La Viña reservoir (31 degrees 17'S, 65 degrees 01'W), located in the province of Córdoba, Argentina. Between years 1999 and 2002, 573 fishes were caught, and their parasite infection and relative weight (Wr) were assesed. Three parasites were found, Lernaea cyprinacea (Crustacea), Contracaecum spp. larvae (Nematoda) and Cangatiella macdonaghi (Cestoda). Overall, Contracaecum spp. prevalence and intensity were very low. Lernaea cyprinacea and Cangatiella macdonaghi prevalences increased during summer and spring (P < 0.01), respectively. Lernaea cyprinacea infection showed also seasonal differences in intensity (P < 0.05), as well as C. macdonaghi regarding parasites density (P < 0.01). Cangatiella macdonaghi average parasites density was 32.0 (+/-22.5) cestodes per cm(3)of digestive content. No association between parasitism and fish relative weight was found. Besides the seasonality variations observed, the parasite burden found did not compromise fish body condition.

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Section: Discussioncontrasting

confidence: 67%

“…Due to changes in taxonomy, this parasitosis could have been reported under different name in O. bonariensis BOSCHI, 1957;FUSTER DE PLAZA, 1959;VIOZZI, 1995;GROSMAN, 1998).…”

Section: Discussionmentioning

confidence: 99%

Seasonal variation of parasitism in pejerrey Odontesthes bonariensis (Atheriniformes, Atherinopsidae) from La Viña reservoir (Córdoba, Argentina)

Mancini

Bucco²,

Salinas

et al. 2008

Rev. Bras. Parasitol. Vet.

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“…Odontesthes bonariensis (Actinopterygii: Atherinopsidae); freshwater; intestine; adult; lakes in Buenos Aires and Córdoba Provinces; Argentina (MacDonagh 1932; Ringuelet 1943; Fuster de Plaza and Boschi 1957; Ortubay et al 1994; Mancini and Grosman 1998; Mancini et al 2008; Drago 2012; Bethular et al 2014). …”

Section: Parasite-host Listmentioning

confidence: 99%

Annotated checklist of fish cestodes from South America

Alves¹,

Chambrier²,

Scholz³

et al. 2017

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An exhaustive literature search supplemented by a critical examination of records made it possible to present an annotated checklist of tapeworms (Cestoda) that, as adults or larvae (metacestodes), parasitize freshwater, brackish water and marine fishes, i.e. cartilaginous and bony fishes, in South America. The current knowledge of their species diversity, host associations and geographical distribution is reviewed. Taxonomic problems are discussed based on a critical evaluation of the literature and information on DNA sequences of individual taxa is provided to facilitate future taxonomic and phylogenetic studies. As expected, the current knowledge is quite uneven regarding the number of taxa and host-associations reported from the principal river basins and marine ecoregions. These differences may not only reflect the actual cestode richness but may also be due to the research effort that has been devoted to unravelling the diversity of these endoparasitic helminths in individual countries. A total of 297 valid species, 61 taxa identified to the generic level, in addition to unidentified cestodes, were recorded from 401 species of fish hosts. Among the recognized cestode orders, 13 have been recorded in South America, with the Onchoproteocephalidea displaying the highest species richness, representing c. 50% of all species diversity. The majority of records include teleost fish hosts (79%) that harbour larval and adult stages of cestodes, whereas stingrays (Myliobatiformes) exhibit the highest proportion of records (39%) among the elasmobranch hosts. Fish cestodes are ubiquitous in South America, being mostly recorded from the Warm Temperate Southeastern Pacific (WTSP; 31%) for marine hosts and the Amazon River basin (45%) for freshwater ones. The following problems were detected during the compilation of literary data: (i) unreliability of many records; (ii) poor taxonomic resolution, i.e. identification made only to the genus or even family level; (iii) doubtful host identification; Alves et al. / ZooKeys 650: 1-205 (2017) 2 and (iv) the absence of voucher specimens that would enable us to verify identification. It is thus strongly recommended to always deposit representative specimens in any type of studies, including faunal surveys and ecological studies. An analysis of the proportion of three basic types of studies, i.e. surveys, taxonomic and ecological papers, has shown a considerable increase of ecological studies over the last decade.

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“…En diferentes ambientes lóticos de la cuenca del río tercero, incluyendo ríos de cabecera y otros sitios ubicados aguas abajo del embalse Piedras Moras, se han descripto 29 especies de peces (Haro et al, 1996). Sin embargo, a excepción de los embalses Arroyo corto y río tercero (Boschi & Fuster de Plaza, 1959;Freyre et al, 1983;Mancini & Grosman, 1998;Mancini et al, 2008a), no se encontraron antecedentes de tra-bajos exhaustivos sobre riqueza, composición de la ictiofauna y biología pesquera del resto de sus reservorios, a pesar de la importante extracción de biomasa para consumo humano y del gran movimiento turístico que generan la pesca deportiva y recreativa de algunas especies, en particular del pejerrey Odontesthes bonariensis.…”

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Physico-chemical characteristics of water and ichthyofauna composition of the Piedras Moras reservoir (Córdoba, Argentina)

Salinas

Mancini

Biolé³

et al. 2017

MACN

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Aspectos Poblacionales del Pejerrey Odontesthes Bonariensis en el Embalse Río Tercero, Córdoba

Cited by 8 publications

References 0 publications

Seasonal variation of parasitism in pejerrey Odontesthes bonariensis (Atheriniformes, Atherinopsidae) from La Viña reservoir (Córdoba, Argentina)

Seasonal variation of parasitism in pejerrey Odontesthes bonariensis (Atheriniformes, Atherinopsidae) from La Viña reservoir (Córdoba, Argentina)

Annotated checklist of fish cestodes from South America

Physico-chemical characteristics of water and ichthyofauna composition of the Piedras Moras reservoir (Córdoba, Argentina)

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