Eine unerklärliche Akkumulation von Verkapselungsstadien eines unbekannten Cestoden
in einer Packung tiefgefrorenen Seefisches der Art
Trichiurus lepturus (Barschartige : Fam. Trichiuridae) aus der Karibik
in einem Lebensmittelgeschäft in Frankfurt am Main
in einem Lebensmittelgeschäft in Frankfurt am Main
Eine naturwissenschaftlich-kriminologische Studie vom 3.10.2016
mit Nachträg vom 6.10.2016 und 23.10.2016
mit Nachträg vom 6.10.2016 und 23.10.2016
Dipl. Biol. Peter Ulrich Zanger
Abstract:
Inside
a 1 kg package with frozen fish in 14 slices from Largehead Hairtail
(Trichiurus lepturus) from Surinam labelled „Caribbean Pearl
Seafrozen Fish“ a total of 7 cyst capsules of an unknown fish
parasite where found. The package, frozen at 5.7.2016 was sold in a
Frankfurt Asian food speciality store at 13. September 2016. 7 fish
slices have been prepared for consume by frying between 14. September
and 18. September. From the dishes emerged a total of 6 capsules that
first erroneously had been identified as hard seed kernels inside a
Chili Sauce added to the fish preparation. The last kernel was found
embedded inside the fishs muscle meat. A following radiography
analysis with X-raxs of 5 still frozen fish slices from the same
package localized one capsule more inside one of the fish slices,
situated at the lower margin of the fishs ventral region.
Literature
describes Trichiurus lepturus woldwide distributed fish used
for human consume. Numerous scientific publications mention „nodulous
enlargements of spines“, „pearls“, „otoliths“, „osteomas“,
ossifications“ or „hyperostotic pterygiophores“ found inside
that carnivorous fish species. The question, if the fish is host of
parasite cysts accumulated during food-chain inside the predators
body is not widely discussed. A study of the ecology of Trichiurus
lepturus, his known parasites and the identification of the found
cysts that resemble to Cestoda parasites permanent stages is
commenced.
Paralelly
the specific data of the production and composition of the found
frozen fish package, it´s transport and distribution way and X-ray
examination stations for food sanity are determined and collected.
The question, why in a single package of fish for human consume a so
uncommon high accumulation of parasite cysts was found and if this
fact could be consecuence of a previous selective manipulation by
collecting parasited fish in a fish-scanning station and re-packaging
in the sold boundle, is discussed.
Fish meal with Trichiurus lepturus slices
prepared at 14th September 2016
in the CID Institute canteen