Occurrence of nematodes of the genus Anisakis in Mediterranean and Atlantic fish marketed in Sardinia

Casti, Daniele; Scarano, Christian; Piras, Maria Cristina; Merella, Paolo; Muglia, Sonia; Piras, Francesca; Garippa, Giovanni; Spanu, Carlo; Santis, E.P.L. De

doi:10.4081/ijfs.2017.6185

Cited by 12 publications

(9 citation statements)

References 20 publications

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“…sp., Ascarophis collaris, Cucullanus cirratus and Capillaria gracilis), while on the eastern Mediterranean coast of Tunisia, the same nematodes species were found in addition to Hysterothylacium fabri (Farjallah et al, 2006). These Nematodes have been reported in many commercial fish species with different prevalence (Justine et al, 2010a(Justine et al, , b, 2012Khlifa et al, 2013;Moravec and Justine, 2015;Shamsi et al, 2015;Casti et al, 2017). Most likely, nematodes of our study were not targeted directly by this predator but accidentally ingested with parasitized prey.…”

Section: Discussionsupporting

confidence: 61%

“…This phenomenon is also observed in various marine and freshwater families, e.g. Esocidae (Treasurer, 1988), Lutjanidae (DeMartini et al, 1996;Justine et al, 2012), Moronidae (Sutton et al, 2004), Sparidae (Smrzlićet al, 2012;Pekmezci et al, 2014), Scombridae (Casti et al, 2017) and Serranidae (Dierking and Meyer, 2009;Justine et al, 2010a;Kouassi et al, 2010;Rachedi et al, 2018). From the numerical and biomass values, P. blennoides of the Algerian coast ingests a large quantity of voluminous prey in summer, however, Morte et al (2002) observed voluminous preys during both summer and autumn.…”

Section: Discussionmentioning

confidence: 84%

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Diet Composition and Trophic Level of Greater Forkbeard Phycis blennoides (Gadiform: Phycidae) from the Algerian Coast

Alioua

Amira

Derbal

et al. 2018

Croatian Journal of Fisheries

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The diet of the greater forkbeard Phycis blennoides (Brünnich, 1768) of the Algerian coast was studied between December 2013 and June 2015, providing information on its ecology for a better understanding of the feeding strategy. A total of 956 individuals, whose total length (TL) varied between 9.7 and 54.5 cm and weight (W) between 2.80 and 1334.11 g, were examined. The index of relative importance (%IRI), combining the three main descriptors of the presence of different ingested prey (%F, %N, %W), was used to characterize the relative importance of different food taxa. Qualitative and quantitative variations in diet were studied according to sex, size and seasons. The average annual digestive vacuity index (%V) was 5.51. It did not vary between seasons (x2cal = 5.43, x2th = 7.82, α = 5%) and size (x2cal = 2.08, x2th = 5.99, α = 5%), but was different between male (%V = 4.94) and female (%V= 12.78). Qualitative analysis of stomach contents reveals a fairly diverse range of predation with 1342 preys counted for a total weight of 462.84 g, which corresponds to an average number (AN) and weight (AW) of 3.03 and 1.04 g, respectively. This species feeds on benthic preys, composed mainly of natantia crustaceans (%IRI = 44.84) and teleost fish (%IRI = 2.61) with intraspecific preys (%IRI = 6.15). This cannibalism was frequent in specimens with a TL that exceeds 20 cm; it was even more frequent in females as well as in winter. Significant differences in feeding habits of P. blennoides occurred according to sex, fish size and between seasons. The trophic level (TROPH) was high (3.66 < TROPH < 3.97), corresponding to carnivorous character.

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Section: Discussionsupporting

confidence: 61%

Section: Discussionmentioning

confidence: 84%

Diet Composition and Trophic Level of Greater Forkbeard Phycis blennoides (Gadiform: Phycidae) from the Algerian Coast

Alioua

Amira

Derbal

et al. 2018

Croatian Journal of Fisheries

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“…Anisakis infection in mackerel caught at the southern coast of East Java tends to increase in line with the increasing fish body size (Figure 2). The positive relationship between host length and the infection level of Anisakis larvae infection has been shown in several previous studies (Konishi and Sakurai 2002;Cruz et al 2009;Setyobudi et al 2011b;Abou-Rahma et al 2016;Casti et al 2017). Increased levels of Anisakis larvae infection caused by the accumulation of larvae during the lifespan of the fish, is a likely reason for adult fish (largesized) having a higher infection level.…”

Section: Discussionmentioning

confidence: 61%

Presence of Anisakis nematode larvae in Indian mackerel (Rastrelliger spp.) along the Indian Ocean southern coast of East Java, Indonesia

Setyobudi¹,

Rohmah²,

Syarifah³

et al. 2018

Biodiversitas

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Setyobudi E, Rohmah I, Syarifah RF, Ramatia L, Murwantoko, Sari DWK. 2019. Presence of Anisakis nematode larvae in Indian mackerel (Rastrelliger spp.) along the Indian Ocean southern coast of East Java, Indonesia. Biodiversitas 20: 313-319. In this study, we aimed to determine the prevalence (P), mean intensity (MI) and site of infection of anisakid larvae (Nematoda) in Indian mackerel (Rastrelliger spp.) at the Indian Ocean Southern Coast of East Java. A total of 341 fish were collected from Prigi and Muncar Fish Harbor, East Java during March-April 2018. Each fish specimen was measured in body length and weight, and then dissected for examination of Anisakis larvae in the body cavity, digestive tract, liver, gonad and muscle. The collected larvae were preserved in absolute ethanol for both morphological and molecular identification. The results of this research showed Indian mackerel was susceptible to Anisakis infection (P=17%, MI =6.8 larva/individual fish). Most of the larvae were found in the digestive tract and body cavity, 47.2% and 46.0% respectively. Only a few larvae were found in other internal organs and muscle. Based on morphological identification, these larvae corresponded to Anisakis Type I. Furthermore, in molecular identification using PCR-RFLP, the banding pattern clearly matched with Anisakis typica. The prevalence and mean intensity of Anisakis nematodes on Indian mackerel along the southern coast of East Java seem to be different in each locality and from other adjacent waters as has previously been reported, which may be due to differences in feeding habits and in the distribution of marine mammals as the final host. The results suggest that differences in prevalence and mean intensity of anisakis larvae infection could be developed as a biological indicator of fish stock discrimination. However, clear information regarding food habits of Indian mackerel and migration patterns of the paratenic hosts as well as of marine mammals as final host is needed.

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“…simplex s.s. hybrids, in fish intended for human consumption, represents a public health hazard and an economic issue. Previous surveys on the presence of anisakids in fishes collected from the Mediterranean basin have reported high values of infection by A. pegreffii in Atlantic chub mackerels from Spain and Sardinia (Casti et al, 2017; Madrid et al, 2016; Piras et al, 2014). Other investigations carried out on Scomber japonicus and on Scomber scombrus reported the occurrence of A. simplex sensu stricto and hybrids in the Western Mediterranean waters (Farjallah et al, 2008; Ferrantelli et al, 2014).…”

Section: Discussionmentioning

confidence: 92%

Occurrence of Anisakis and Hysterothylacium nematodes in Atlantic chub mackerels from Libyan coasts

Cavallero

Sherif²,

Pizzarelli

et al. 2019

Helminthologia

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SummaryThe occurrence of zoonotic parasitic nematodes in Atlantic chub mackerels (Scomber colias syn. Scomber japonicus) from Libyan waters was investigated, using epizootiological estimations and molecular specific characterization of larvae. Nematodes belonging to Anisakis spp., the main etiological agent of anisakiasis in Mediterranean waters, and to Hysterothylacium spp. so far considered not pathogenic to humans, were detected. Prevalence values were generally high in visceral cavities (over 40 % for both parasites) while were low for Anisakis (around 1 %) and null for Hysterothylacium in muscles. Moreover, the level of infections was associated with seasons, a feature potentially useful to plan fishing captures and to elaborate risk mitigation strategies for anisakiasis. Species molecular identification performed on a subsample described the presence of Hysterothylacium aduncum as the predominant species, along with Anisakis pegreffii and the hybrids (A. pegreffii and A. simplex sensu stricto), thus posing a concrete zoonotic risk following the consumption of such fish species as a raw preparation.

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Occurrence of nematodes of the genus Anisakis in Mediterranean and Atlantic fish marketed in Sardinia

Cited by 12 publications

References 20 publications

Diet Composition and Trophic Level of Greater Forkbeard Phycis blennoides (Gadiform: Phycidae) from the Algerian Coast

Diet Composition and Trophic Level of Greater Forkbeard Phycis blennoides (Gadiform: Phycidae) from the Algerian Coast

Presence of Anisakis nematode larvae in Indian mackerel (Rastrelliger spp.) along the Indian Ocean southern coast of East Java, Indonesia

Occurrence of Anisakis and Hysterothylacium nematodes in Atlantic chub mackerels from Libyan coasts

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