Distribution of larval anisakids in blue whiting off Portuguese fish market

Cruz, Cristina; Barbosa, Cleydiane; Saraiva, Aurélia

doi:10.2478/s11687-006-0051-8

Cited by 24 publications

(18 citation statements)

References 16 publications

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“…Our results show that in December, March and May the parasitic burden in the examined fish was low whereas in February and April there was an increase but this observation is related to the correlation between the size of the fish and the number of parasites. The larval burden was related to host length, as noted also by McGladery and Burt (1985), Abaunza et al, (1995), Adroher et al, (1996), Manfredi et al, (2000) and Cruz et al (2007). As Abaunza et al (1995) review, the direct relationship between infestation level and age or length in the horse mackerel is a prevalent phenomenon in many fish species.…”

Section: Discussionmentioning

confidence: 99%

Anisakis spp. burden in Trachurus trachurus

et al. 2012

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16 SummaryAnisakis is a parasite of marine mammals that uses a great number of fish species as intermediate or paratenic hosts. It is common in commercially important marine fishes and its presence is of great concern for both human health and economic reasons. Horse mackerels (Trachurus trachurus) originated from the Northern Aegean Sea were examined for the presence of Anisakis spp. larvae. The prevalence of Anisakis spp. was found 98.8 %. The number of parasites was significantly related to the host's length but was not related to the fish gender. The month of sampling affected the size of the fishes and consequently the number of parasites. The length of larvae was not related to the host's length. The present study resulted in the design of a prediction model for the number of existing parasites in the fish by measuring only its Fixed Length.

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Section: Discussionmentioning

confidence: 99%

Anisakis spp. burden in Trachurus trachurus

et al. 2012

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“…In contrast, in Moroccan waters, prevalence of anisakids in S. colias varied from 57% to 67.9% (Abattouy et al 2011). High prevalence values were also recorded for anisakids of other fish species from the Portuguese mainland, such as the blue whiting (Micromesistius poutassou, 77.7%), the black scabbardfish (Aphanopus carbo, 100%) (Cruz et al 2007(Cruz et al , 2009) and the blackspot seabream (Pagellus bogaraveo, 100%) (Hermida et al 2012). Moreover, Costa et al (2004) also reported a high prevalence (89.6%) for the blackspot seabream off Madeira Islands, Portugal.…”

Section: Discussionmentioning

confidence: 93%

Comparison of anisakid infection levels between two species of Atlantic mackerel (<em>Scomber colias</em> and <em >S. scombrus</em>) off the Atlantic Portuguese coast

et al. 2017

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Summary:Anisakiasis is a problematic zoonotic infection associated with the consumption of raw or undercooked fish. Atlantic mackerel (Scomber colias) is of high commercial interest in Portugal and has been reported as a common host of Anisakis spp. In this study, the occurrence of anisakids is evaluated in S. colias and also Scomber scombrus, and the potential zoonotic risk associated with consumption of these two fishes is evaluated according to the recorded infection levels. These were found to be high for both fish species: a mean intensity and prevalence of 21.7 worms/fish and 85% for S. colias, and 16.4 worms/fish and 83.3% for S. scombrus, respectively. No correlation was detected between anisakid intensity and host total length, total weight, condition factor, and hepatosomatic and gonadosomatic indices for both fish species, but significantly higher intensity values were detected for more mature S. scombrus, i.e. fish recording a higher gonadosomatic index. Molecular tools allowed the identification of two species of Anisakis, A. simplex (s.s.) and A. pegreffii. They differed in their occurrence: in S. colias the prevalence of A. simplex (s.s.) was 18% and that of A. pegreffii was 82%, whereas in S. scombrus the prevalence of A. simplex (s.s.) was 73% and that of A. pegreffii was 27%. Occasionally, worms of Hysterothylacium aduncum were identified for both fish. The different infection levels of the two Anisakis species in both hosts off the Portuguese coast raise the hypothesis of a different life cycle at the level of the invertebrate intermediate host. S. colias lives in deeper waters than S. scombrus, and the differences found in infection levels suggest that A. pegreffii main first intermediate host also live in deeper waters, compared with A. simplex (s.s.) main first intermediate host. The higher infection levels of A. simplex (s.s.) (most infectious to humans) in S. scombrus suggest that its consumption when slightly cooked, as in grilled fish (so popular in Portugal), could be more problematic for the development of anisakiasis in humans than the consumption of S. colias and thus be of potential public health concern.Keywords: anisakids; Anisakis pegreffii; Anisakis simplex (s.s.); Atlantic mackerels; Portuguese coast; molecular identification; food safety. Comparación de los niveles de infección de anisákidos entre dos especies de caballa del Atlántico (Scomber colias y S. scombrus), de la costa atlántica portuguesaResumen: La anisakiasis es una zoonosis problemática asociada con el consumo de pescado crudo o poco cocinado. La caballa del Atlántico (Scomber colias) es un pez de mayor interés comercial en Portugal y se ha informado que es un hospedador común de Anisakis spp. En este estudio, la incidencia de anisákidos se evalúa en S. colias y Scomber scombrus, y el potencial riesgo zoonótico asociado con el consumo de estos dos peces se evalúa de acuerdo a los niveles de infección registrados. Estos se encontraron altos para ambas especies de peces -intensidad media y la prevalencia de 21.7 gu...

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“…ziphidarum Pagi, Nascetti, Webb, Mattiuci, Cianchi & Bullini, 1988, Pagellus bogaraveo, most larvae encapsulated in fish body cavity, mesenteries, on the ouside of the viscera, Hermida et al (2012b , Saraiva et al (2000b), Silva & Eiras (2003), MacKenzie et al (2008), Cruz et al (2005Cruz et al ( , 2007Cruz et al ( , 2009, (Freitas et al 2009), Santos et al (2009, Hermida et al (2015).…”

Section: Methodsmentioning

confidence: 99%

“…Hysterothylacium sp., Microchirus azevia, Micromesistius poutassou, Pagellus bogaraveo, Pegusa lascaris (=Solea lascaris), Trachurus trachurus, digestive tract, liver, muscles, encapsulated in body cavity and outside of the viscera, Cruz et al (2005Cruz et al ( , 2007, Marques et al (2006a), Hermida et al (2012a.…”

Section: Methodsmentioning

confidence: 99%

Parasites of marine, freshwater and farmed fishes of Portugal: a review

Eiras

2016

Rev. Bras. Parasitol. Vet.

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An extensive literature review is made of the parasites in marine and freshwater fish in mainland Portugal, the Portuguese archipelagos of the Azores and Madeira, as well as in farmed fish. The host(s) of each parasite species, its location in the host, site of capture of the host, whenever possible, and all the available bibliographic references are described. The economic importance of some parasites and the zoonotic relevance of some parasitic forms are discussed. A general overview of the data is provided, and some research lines are suggested in order to increase and complement the current body of knowledge about the parasites of fish from Portugal.Keywords: Parasites, fish, pathology, economy, zoonotic diseases, Portugal. ResumoÉ feita uma revisão do conhecimento dos parasitas de peixes de Portugal com base em extensa compilação bibliográfica. São referidos os parasitas de peixes marinhos e de água doce do continente, dos Arquipélagos da Madeira e dos Açores, bem como os parasitas de peixes de piscicultura. Para cada espécie é indicado o hospedeiro, localização no hospedeiro, local de pesca quando possível, e referências bibliográficas disponíveis. Discute-se a importância econômica de alguns dos parasitas e a relevância zoonótica de algumas formas. É feita uma avaliação geral dos dados e sugerem-se linhas de pesquisa que aumentem e complementem o conhecimento atual sobre os parasitas de peixes de Portugal.

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Distribution of larval anisakids in blue whiting off Portuguese fish market

Cited by 24 publications

References 16 publications

Anisakis spp. burden in Trachurus trachurus

Anisakis spp. burden in Trachurus trachurus

Comparison of anisakid infection levels between two species of Atlantic mackerel (<em>Scomber colias</em> and <em >S. scombrus</em>) off the Atlantic Portuguese coast

Parasites of marine, freshwater and farmed fishes of Portugal: a review

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