Growth, fecundity and sex ratio of adult whaleworm (Anisakis simplex; Nematoda, Ascaridoidea, Anisakidae) in three whale species from the North-East Atlantic

  title={Growth, fecundity and sex ratio of adult whaleworm (Anisakis simplex; Nematoda, Ascaridoidea, Anisakidae) in three whale species from the North-East Atlantic},
  author={Karl Inne Ugland and Einar Str{\o}mnes and Bj{\o}rn Berland and Paul Eric Aspholm},
  journal={Parasitology Research},
The growth rate, fecundity, and sex ratio of Anisakis simplex in minke whales (Balaenoptera acutorostrata), porpoises (Phocoena phocoena) and long-finned pilot whales (Globicephala melas) was studied on the basis of material from the North Atlantic. A total of 8,135 mature A. simplex were collected from 24 minke whales, 11 porpoises and eight pilot whales. For both males and females, the prevalence was 100% for all three host species, with a mean intensity of 1,727, 262 and 139, respectively… 
The life cycle of Anisakis simplex in the Norwegian Deep (northern North Sea)
Euphausiids have no importance at all for the successful transmission of A. simplex in the Norwegian Deep, demonstrating that this nematode is able to select definite host species depending on the locality, apparently having a very low level of host specificity.
Helminth Parasites in Ringed Seals (Pusa hispida) From Svalbard, Norway with Special Emphasis on Nematodes: Variation with Age, Sex, Diet, and Location of Host
Nematode abundance increased significantly with age of male hosts, but this trend was lacking in female seals, and infection parameters appeared to be related to differences in the age of polar cod exploited by male, female, and juvenile seals.
Anisakid nematode larvae in the liver of Atlantic cod Gadus morhua L. from West Greenland
The study may serve as a baseline for future investigations using the three anisakids as biological indicators in Greenland waters, and a clear seasonal variation was observed, with a rise in A. simplex and P. decipiens occurrence in June and August and a decline in September.
Scavenging hagfish as a transport host of Anisakid nematodes.
Gastrointestinal parasites of free-living Indo-Pacific bottlenose dolphins (Tursiops aduncus) in the Northern Red Sea, Egypt
The present study represents the first report on the gastrointestinal parasite fauna infecting the free-living and alive Indo-Pacific bottlenose dolphins inhabiting waters of the Red Sea at Hurghada, Egypt and molecularly identified adult worms of Anisakis typica in individual dolphin vomitus samples by molecular analyses.
Occurrence of Anisakis Larvae in Commercial Fish along the Northern Coast of Taiwan
Using phylogenetic analysis in the molecular identification of ribosomal DNA domains ITS-1 (internal transcribed spacer 1) and ITS-2, the larvae in the three species of fish were not of a single species of Anisakis.
Genera and Species of the Anisakidae Family and Their Geographical Distribution
A bibliographic search was carried out of the genus and species of the Anisakidae family identified by molecular tests, as well as the geographical area in which they were collected.


Growth of whaleworm (Anisakis simplex, Nematodes, Ascaridoidea, Anisakidae) third-stage larvae in paratenic fish hosts
Trends suggest that the growth of A. simplex L3 larvae is positively correlated with the fat content of the tissue in which it is encapsulated, as the growth rate and average length of the parasite was greatest in this species.
Anisakis simplex (Rudolphi, 1809, det. Krabbe, 1878) (Nematoda: Ascaridoidea): Morphology and morphometry of larvae from euphausiids and fish, and a review of the life-history and ecology
  • J. W. Smith
  • Environmental Science, Biology
    Journal of Helminthology
  • 1983
Euphausiids in the North-East Atlantic and northern North Sea, and perhaps universally, are major intermediate hosts of A simplex, and the status as hosts of squid and teleosts harbouring L3 is discussed.
Phocanema decipiens: growth, reproduction, and survival in seals.
The Relationship Between the Presence of Larval Anisakine Nematodes in Cod and Marine Mammals in British Home Waters
There is a marked disparity between the reported number of adult nematodes in seals from Canada and the United Kingdom and the distribution of anisakine larvae in British home water stocks of cod was examined further, and the normal populations of gut nematode were examined.
No significant development of Anisakis simplex (Nematoda, Anisakidae) eggs in the intestine of long-finned pilot whales, Globicephala melas (Traill, 1809)
Eggs from Anisakis simplex did not hatch during experiments conducted at 37 °C, indicating an inhibitory effect on hatching by high temperatures if the final host is a mammal.
Impact of temperature, salinity and light on hatching of eggs of Anisakis simplex (Nematoda, Anisakidae), isolated by a new method, and some remarks on survival of larvae
The hypothesis that A. simplex is adapted to off-shore pelagic marine environments is supported after a new efficient method of isolating large number of eggs from anisakid worms is described.
Nematode parasites in teleosts from 0 to 1540 m depth off the faroe islands (The North Atlantic)
Abstract In the present study 416 specimens belonging to 43 species of teleost fishes from shallow waters down to a depth of 1540 m off the Faroes were examined for nematode parasites. All in all,
Anisakis and anisakiasis.