Anisakid parasites of two forkbeards (Phycis blennoides and Phycis phycis) from the Mediterranean coasts of Andalucía (Southern Spain)

Valero, A.; Paniagua, Margarita; Hierro, Ignacio; Díaz, V.; Valderrama, Mariano J.; Benı́tez, Rocı́o; Adroher, Francisco Javier

doi:10.1016/j.parint.2005.07.001

Cited by 34 publications

(21 citation statements)

References 14 publications

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“…Concerning Hysterothylacium, the differences between the prevalences of H. aduncum (L3 and L4) and H. fabri (L3 and L4) are significant (P<0.0001) in both species. This result was similar to that reported from the Mediterranean coasts of Andalucía by Valero et al (2005) and can be probably related to the type of prey and habitat of the hosts examined. Macpherson (1978) reported that the greater forkbeard mainly feeds on benthic organisms, its principal prey being decapods buried in the mud of the seabed, although, as the fish grow, it also tends to prey on smaller fish.…”

Section: Discussionsupporting

confidence: 91%

“…However, decapods continue to constitute the main part of the diet by weight. The same author also found that prey size increases with predator size, except in the case of prey which are buried in the mud and are captured randomly (Valero et al 2005). Valero et al (2005) also reported an increase in the prevalence of anisakids in phycids marketed in the western Mediterranean coast (Spanish coast).…”

Section: Discussionmentioning

confidence: 89%

“…(Table 3) is well known (e.g, Valero et al 2005). In particular, the Mediterranean Sea is physically fairly constant: isothermal below 200 m (13°C), with high salinity, low oxygen and oligotrophy (Rotllant et al 2002).…”

Section: Discussionmentioning

confidence: 90%

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Anisakid parasites of two forkbeards (Phycis blennoides and Phycis phycis) from the eastern Mediterranean coasts in Tunisia

et al. 2006

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Two gadiform species with a successive bathymetric and an ecological and economical importance in the Mediterranean fishing industry, Phycis blennoides and Phycis phycis, were selected for the present study. A total of 592 fresh specimens belonging to the Gadiformes genus were obtained from local commercial fisheries. The investigation was centred on anisakid parasites of 272 specimens of the greater forkbeard (P. blennoides) and 320 of the forkbeard (P. phycis) captured off the Mediterranean coasts of Tunisia (eastern Mediterranean Sea). Four species of nematodes were identified: Anisakis simplex s.1., Anisakis physeteris, Hysterothylacium aduncum and Hysterothylacium fabri. The total prevalence was 53.75% in the forkbeard and 51.47% in the greater forkbeard. The highest values of prevalence (38.75%, 2-14), mean intensity (6.74+/-3.4) and mean abundance (2.61) were all obtained for H. fabri L4 in the forkbeard. The most frequent parasite in the greater forkbeard was H. aduncum L3 with 32.35% (1-3) prevalence and values of 1.21+/-0.58 and 0.39 for mean intensity and mean abundance, respectively. The infestation parameters were also analysed according to the host length, and prevalence was highest in P. blennoides longer than 35 cm in respect of all anisakid species. Whilst in P. phycis, the highest prevalence, conditioned by H. fabri parasitisation, was found in fish with length reaching a maximum of more than 40 cm. When the data were grouped seasonally, clear patterns were observed for P. blennoides and P. phycis species, with prevalence and mean intensity of all the anisakid species peaking in spring and summer.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 89%

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Anisakid parasites of two forkbeards (Phycis blennoides and Phycis phycis) from the eastern Mediterranean coasts in Tunisia

et al. 2006

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“…1, p<0.04). Several studies confirm this relationship between length and parasitization in other hosts (Takao 1990;Hemmingsen et al 2000;Valero et al 2000Valero et al , 2006.…”

Section: Discussionmentioning

confidence: 65%

Anisakis spp. in European hake, Merluccius merluccius (L.) from the Atlantic off north-west Africa and the Mediterranean off southern Spain

Valero

López-Cuello

Benı́tez

et al. 2006

Acta Parasitologica

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We studied the parasitization by Anisakis spp. in European hake (Merluccius merluccius) of 40-52 cm from the Atlantic off north-west Africa and the Mediterranean off southern Spain. Infection parameters differed: The fish from the Atlantic showing a prevalence of 87.97% and a mean intensity of 4.69, while, in those from the Mediterranean, these were 41.27% and 1.73, respectively. In both samples the two-third larval stage types were isolated: Anisakis simplex sensu lato and Anisakis larvae type II, with prevalence of 85.71% and 30.83% in fish from the Atlantic and 41.27% and 1.59% for those from the Mediterranean, respectively. In both samples, the prevalence of larvae in viscera was clearly higher than in the muscle tissue. We also observed an increase in parasitization with increasing host length, those $46 cm having the highest prevalences (94.87% for those from the Atlantic and 58.33% for those from the Mediterranean; p<0.03).

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“…Todd et al (2008) reported that both survival and growth have been impacted after analysis of 2 independent 14 yr time series, showing evidence of recent climate-driven changes in the eastern North Atlantic pelagic ecosystem. Finally, human allergic and gastro-allergic reactions to A. simplex were reported to have dramatically increased in Spain between 1995 and 2005 (Del Rey Moreno et al 2006) and could reflect changes in culinary and feeding habits or improved diagnosis; however, it could also reflect, as reported by Valero et al (2006), a real general increase in the prevalence of anisakid parasites in virtually all the wide range of fish hosts.…”

Section: Asp Ay821749 Tc--cgta Ta-cagttt--gtgtgatc-tatgt--caa Cgcaamentioning

confidence: 97%

Red vent syndrome in wild Atlantic salmon Salmo salar in Scotland is associated with Anisakis simplex sensu stricto (Nematoda: Anisakidae)

Noguera

Collins²,

Bruno³

et al. 2009

Dis. Aquat. Org.

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Simultaneous reports were received between June and July 2007 of wild Atlantic salmon Salmo salar with red, swollen, bloody vents returning to geographically diverse rivers in Scotland. By the end of September the condition, colloquially known as 'red vent syndrome' (RVS), was reported from > 50 rivers across Scotland. Fish were generally in good overall condition but the vent area showed mild to severe lesions. External characteristics of the syndrome included a swollen, raised, haemorrhagic vent and surrounding tissues, with erosion of the skin, scale loss and moderate to severe bleeding in more advanced cases. Predominantly, the fish affected were 1-sea-winter grilse; however, RVS was also recorded in 2-sea-winter salmon and sea trout S. trutta. High numbers of the nematode Anisakis Type I larvae were found infesting the discrete region of the vent, a localisation that is reported as novel for the parasite. The hypothesis that this is a different species than that commonly found in the body cavity and viscera was investigated through molecular studies. These studies failed to show evidence that the parasites infesting the vent were different from those in the body cavity, i.e. all were identified as A. simplex sensu stricto. No other disease agent was found associated with the lesions or was isolated systemically, and no mortality or prevention of spawning was recorded during the 2007 season. Possible causes, including warming environments in the North Atlantic, are hypothesised as playing a role in the development of RVS in Atlantic salmon.

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Anisakid parasites of two forkbeards (Phycis blennoides and Phycis phycis) from the Mediterranean coasts of Andalucía (Southern Spain)

Cited by 34 publications

References 14 publications

Anisakid parasites of two forkbeards (Phycis blennoides and Phycis phycis) from the eastern Mediterranean coasts in Tunisia

Anisakid parasites of two forkbeards (Phycis blennoides and Phycis phycis) from the eastern Mediterranean coasts in Tunisia

Anisakis spp. in European hake, Merluccius merluccius (L.) from the Atlantic off north-west Africa and the Mediterranean off southern Spain

Red vent syndrome in wild Atlantic salmon Salmo salar in Scotland is associated with Anisakis simplex sensu stricto (Nematoda: Anisakidae)

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