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Khawia sinensis Hsü, 1935 (Cestoda: Caryophyllidea), a tapeworm new to the British Isles: a threat to carp fisheries?
Author(s) -
CHUBB J.C.,
YEOMANS W.E.
Publication year - 1995
Publication title -
fisheries management and ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 55
eISSN - 1365-2400
pISSN - 0969-997X
DOI - 10.1111/j.1365-2400.1995.tb00118.x
Subject(s) - cestoda , common carp , cyprinus , carp , biology , fishery , cyprinidae , aquaculture , zoology , helminths , fish <actinopterygii>
Khawia sinensis Hsü is recorded for the first time from the British Isles. K. sinensis was recovered from many naturally infected common carp, Cyprinus carpio L., and one tench, Tinca tinca (L.) in 18 localities in England. Prevalence ranged from 4.5 to 100% and intensity of infection from one to 51 worms per fish. The worms were identified as Lytocestidae by the medullary arrangement of the vitelline glands and the cortical position of the testes, and as K. sinensis on scolex characteristics and detailed arrangement and measurements of genital organs. No evidence of pathogenicity was observed, although K. sinensis has been reported as a serious pathogen of cyprinids in overseas fisheries. The potential threat of this tapeworm to carp fisheries in England is discussed.