The Morphology, and Some Observations on the Population Genetics of Anisakis simplex Larvae (Nematoda: Ascaridata) from Fishes of the North Atlantic

• Published in: Journal of the Fisheries Research Board of Canada
• Main Authors: Beverley-Burton, Mary, Nyman, O. L., Pippy, John H. C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1977
• Subjects: General Medicine; Atlantic salmon; North Atlantic; Salmo salar
• Online Access: http://dx.doi.org/10.1139/f77-012; http://www.nrcresearchpress.com/doi/pdf/10.1139/f77-012

The morphology of larval Anisakis simplex in a subsample taken from Atlantic herring, Clupea harengus harengus, in the North Sea (and used in previous in vitro culture experiments) is described, with particular reference to the excretory system.The morphological similarities of these larvae from C. harengus harengus and Atlantic salmon, Salmo salar, taken in widely separated locations in the North Atlantic suggests that Anisakis larvae Type 1 is A. simplex. These findings are substantiated by studies on acid phosphatase polymorphism of the larvae and the known geographic ranges of related species. Frequencies of the acid phosphatase phenotypes varied in different sampling areas, suggesting that different populations of larval A. simplex occur in fish in the North Atlantic.