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Journal ArticleDOI

Genetic and morphological approaches distinguish the three sibling species of the Anisakis simplex species complex, with a species designation as Anisakis berlandi n. sp. for A. simplex sp. C (Nematoda: Anisakidae).

TLDR
The morphological and morphometric analyses revealed the presence of morphological features that differed among the 3 biological species, and the tree topologies support the finding that A. simplex (s.s.), A. pegreffii, and A. berlandi n.
Abstract
Numerous specimens of the 3 sibling species of the Anisakis simplex species complex (A. pegreffii, A. simplex (senso stricto)), and A. simplex sp. C) recovered from cetacean species stranded within the known geographical ranges of these nematodes were studied morphologically and genetically. The genetic characterization was performed on diagnostic allozymes and sequences analysis of nuclear (internal transcribed spacer [ITS] of ribosomal [r]DNA) and mitochondrial (mitochondrial [mt]DNA cox2 and rrnS) genes. These markers showed (1) the occurrence of sympatry of the 2 sibling species A. pegreffii and A. simplex sp. C in the same individual host, the pilot whale, Globicephala melas Traill, from New Zealand waters; (2) the identification of specimens of A. pegreffii in the striped dolphin, Stenella coeruleoalba (Meyen), from the Mediterranean Sea; and (3) the presence of A. simplex (s.s.) in the pilot whale and the minke whale, Balaenoptera acutorostrata Lacepede, from the northeastern Atlantic wa...

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Book ChapterDOI

Molecular Epidemiology of Anisakis and Anisakiasis: An Ecological and Evolutionary Road Map.

TL;DR: This review addresses the biodiversity, biology, distribution, ecology, epidemiology, and consumer health significance of the so far known species of Anisakis, both in their natural hosts and in human accidental host populations, worldwide.
Journal ArticleDOI

Effects of anisakid nematodes Anisakis simplex (s.l.), Pseudoterranova decipiens (s.l.) and Contracaecum osculatum (s.l.) on fish and consumer health ☆

TL;DR: Clinical symptoms associated with the infection, termed anisakidosis, vary from irritation of the oesophagus and stomach, via nausea, vomiting and diarrhoea to severe epigastric and abdominal pain.
Journal ArticleDOI

Larval migration of the zoonotic parasite Anisakis pegreffii (Nematoda: Anisakidae) in European anchovy, Engraulis encrasicolus: Implications to seafood safety

TL;DR: Temperature plays an important role in the post-mortem motility of A. pegreffii larvae in anchovies, and the importance of the adoption of rules to prevent human anisakiasis was underlined.
Journal ArticleDOI

Anisakis Nematodes in Fish and Shellfish- from infection to allergies

TL;DR: This review provides an update on current knowledge on Anisakis as a food-borne parasite with special focus on the increasingly reported diversity of fish and crustacean hosts, allergens and immunological cross-reactivity with invertebrate proteins rendering this parasite a significant public health issue.
References
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Journal ArticleDOI

Anisakis infestation in marine fish and cephalopods from Galician waters: an updated perspective

TL;DR: Demographic values for larval nematodes are discussed in relation to host preferences and the ecological niche of both anisakid species at the sampling area and primary recommendations are also expressed concerning the effects of current fishing and aquaculture practices on the Anisakis problem.
Journal ArticleDOI

Population genetics and molecular epidemiology or how to "débusquer la bête".

TL;DR: This review presents the molecular tools, the null models employed, the statistical tools available and the kinds of inferences one can make when using molecular markers to study the ecology/epidemiology of host-parasite systems (molecular ecology/Molecular epidemiology).
Journal ArticleDOI

Electrophoretic studies on the Anisakis simplex complex (Ascaridida:Anisakidae) from the Mediterranean and North-East Atlantic.

TL;DR: The genetic variation of the sibling species Anisakis simplex A and A. simplex B was investigated by electrophoretic analysis of 22 gene-enzyme systems and several paratenic hosts and one cetacean definitive host are identified for each of the two species.
Journal ArticleDOI

Genetic relationships among Anisakis species (Nematoda: Anisakidae) inferred from mitochondrial cox2 sequences, and comparison with allozyme data.

TL;DR: Phylogenetic analyses based upon Parsimony and Bayesian Inference, as well as phenetic analysis based upon Neighbor-Joining p-distance values, generated similar tree topologies, each well supported at major nodes.
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