Search results for "Duodenal ampulla"

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POPULATION STRUCTURE OF ANISAKIS SIMPLEX (NEMATODA) IN HARBOR PORPOISES PHOCOENA PHOCOENA OFF DENMARK

2004

The population structure and habitat selection of Anisakis simplex in 35 harbor porpoises off Denmark are described. The nematodes were collected from the stomach and duodenal ampulla and were categorized as third-stage larvae, fourth-stage larvae, subadults, and adults. The porpoises harbored 8,043 specimens of A. simplex. The proportion of adults and subadults increased with infrapopulation size. The number of development stages across infrapopulations covaried significantly (Kendall's test of concordance). Concordance was higher in hosts with the highest intensities than in those with low and medium intensities. All stages occurred mainly in the forestomach, but this trend was stronger f…

MaleDenmarkConcordancePopulation structureCetaceaZoologyPhocoenaPorpoisesAnisakiasis:CIENCIAS DE LA VIDA [UNESCO]PhocoenaUNESCO::CIENCIAS DE LA VIDAAnimalsSeawaterSex RatioMatingEcology Evolution Behavior and SystematicsLarvabiologyEcologyStomachAnisakis Simplex ; Phocoena ; DenmarkAnisakis simplex:CIENCIAS DE LA VIDA::Biología animal (Zoología) ::Parasitología animal [UNESCO]Duodenal ampullabiology.organism_classificationAnisakisAnisakis SimplexUNESCO::CIENCIAS DE LA VIDA::Biología animal (Zoología) ::Parasitología animalLarvaFemaleParasitologyJournal of Parasitology
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