Metazoan parasites of<i>Brama australis</i>from southern Chile: a tool for stock discrimination?

Oliva, Marcelo E.; Espinola, J. F.; Ñacari, Luis A.

doi:10.1111/jfb.12881

Cited by 7 publications

(5 citation statements)

References 19 publications

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“…The research group from the UA, Chile, has dealt with different subjects concerning helminths parasitic in fish, including ecological (Oliva et al ., 2016) and taxonomic studies (molecular and morphological characterization) of some taxa (Oliva et al ., 2014, 2015).…”

Section: Current Research Groups and Their Geographic Distributionmentioning

confidence: 99%

Helminth parasites of South American fishes: current status and characterization as a model for studies of biodiversity

et al. 2016

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The South American subcontinent supports one of the world's most diverse and commercially very important ichthyofauna. In this context, the study of South American fish parasites is of increased relevance in understanding their key roles in ecosystems, regulating the abundance or density of host populations, stabilizing food webs and structuring host communities. It is hard to estimate the number of fish parasites in South America. The number of fish species studied for parasites is still low (less than 10%), although the total number of host-parasite associations (HPAs) found in the present study was 3971. Monogeneans, with 835 species (1123 HPAs, 28.5%), and trematodes, with 662 species (1127 HPAs, 30.9%), are the more diverse groups. Data gathered from the literature are useful to roughly estimate species richness of helminths from South American fish, even though there are some associated problems: the reliability of information depends on accurate species identification; the lack of knowledge about life cycles; the increasing number of discoveries of cryptic species and the geographically biased number of studies. Therefore, the closest true estimations of species diversity and distribution will rely on further studies combining both molecular and morphological approaches with ecological data such as host specificity, geographical distribution and life-cycle data. Research on biodiversity of fish parasites in South America is influenced by problems such as funding, taxonomic impediments and dispersion of research groups. Increasing collaboration, interchange and research networks in the context of globalization will enable a promising future for fish parasitology in South America.

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Section: Current Research Groups and Their Geographic Distributionmentioning

confidence: 99%

Helminth parasites of South American fishes: current status and characterization as a model for studies of biodiversity

et al. 2016

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“…A recent study showed the prevalence of Anisakis spp. in Brama australis in three southern Chilean localities: 16.8% in Lebu, 10.6% in Calbuco and 6.7% in Punta Arenas (Oliva et al, 2016). Several data demonstrate the importance of this nematode parasite in public health and the risk of infection due to this seafood-borne disease worldwide, which affects many different fish species destined for human consumption such as: Chilean jack mackerel (Trachurus murphyi) (George-Nascimento et al, 1983), sardines (Sardina pilchardus) and anchovies (Engraulis encrasicolus) a b c a d (Serracca et al, 2014;Cavallero et al, 2015;Molina-Fernández et al, 2015), Atlantic mackerel (Scomber scombrus) (Pekmezci, 2014), lamprey (Petromyzon marinus) (Bao et al, 2013), golden kingklip (Genypterus blacodes) and snoek (Thyrsites atun) .…”

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confidence: 94%

Anisakid nematodes prevalence in Chilean hake (Merluccius gayi gayi) commercialized in the city of Talca, Chile

Silva

Rojas

Morales

et al. 2020

Lat. Am. J. Aquat. Res.

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The main objective of this work was to determine the presence of anisakid larvae in fresh Chilean hake Merluccius gayi gayi coming from the coastal area near the city of Talca, Chile, commonly commercialized by a regional fish supply center located in the same city. Flesh and viscera of 214 fish were analyzed via direct observation, and the prevalence of parasitism was calculated. The results showed a prevalence of 100% and 24.3% in viscera and flesh, respectively. Morphologic characterization of 138 randomly selected larvae was performed via diaphanization technique, observing 106 larvae of Anisakis spp., 13 larvae of Pseudoterranova spp. and 19 nematodes classified as “unidentified.” All larvae here analyzed were viable based on the spontaneous movement ability of parasites. Overall, the high prevalence of fish infected with Anisakidae larvae highlights the importance of taking early intervention actions in order to prevent the occurrence of anisakidosis in the human Chilean population; particularly critical given the current culinary preference for raw fish dishes such as ceviche and sushi, which poses a public health issue.

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“…La reineta es una especie altamente migratoria, caracterizada por un desplazamiento de sur a norte en la temporada de invierno-primavera para desovar, y de norte a sur en la temporada verano-otoño en busca de alimento (Santa Cruz et al, 2014). La dieta de la reineta se compone de un acotado espectro trófico basado en crustáceos de pequeño tamaño (menos de 3 cm) como eufáusidos (Euphausia mucronata), calamares (Loligo gahi) y mictófidos (García y Chong, 2002;Oliva et al, 2016), que forman parte del ciclo biológico de los anisákidos como hospederos intermediarios. Además, la tem-peratura y la salinidad del agua afectan la distribución de estos pequeños crustáceos en la columna de agua (Quesquén y Ayón, 2012).…”

Section: Discussionunclassified

Parásitos en reinetas (Brama australis) comercializadas en la región del Maule, Chile

Machuca

Quintanilla

Cabezas

et al. 2021

Rev. investig. vet. Perú

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El objetivo de este trabajo fue determinar la presencia de larvas de parásitos de importancia zoonótica en reinetas (Brama australis) frescas y en ceviches preparados con esta especie que son vendidos en el centro-sur de Chile (ciudad de Talca). Se adquirieron 27 reinetas enteras sin eviscerar, obtenidas desde la zona costera cerca de la ciudad de Talca y vendidas en la misma ciudad, así como 48 porciones de ceviche de reineta obtenidas desde el comercio formal e informal. Todas las muestras fueron analizadas macroscópicamente y luego mediante digestión enzimática. No se detectaron larvas de anisákidos en las porciones de ceviche ni en los pescados frescos; sin embargo, se detectó la presencia de larvas de cestodos del género Hepatoxylon en 24 reinetas (88.9%), con una abundancia media de 1.9 larvas.

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Metazoan parasites ofBrama australisfrom southern Chile: a tool for stock discrimination?

Cited by 7 publications

References 19 publications

Helminth parasites of South American fishes: current status and characterization as a model for studies of biodiversity

Helminth parasites of South American fishes: current status and characterization as a model for studies of biodiversity

Anisakid nematodes prevalence in Chilean hake (Merluccius gayi gayi) commercialized in the city of Talca, Chile

Parásitos en reinetas (Brama australis) comercializadas en la región del Maule, Chile

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