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Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel
Duflot, M.; Gay, M.; Midelet, G.; Kania, P.W.; Buchmann, K. (2021). Morphological and molecular identification of Cryptocotyle lingua metacercariae isolated from Atlantic cod (Gadus morhua) from Danish seas and whiting (Merlangius merlangus) from the English Channel. Parasitol. Res. 120(10): 3417-3427. https://dx.doi.org/10.1007/s00436-021-07278-6
In: Parasitology Research. Springer: Berlin; Heidelberg. ISSN 0932-0113; e-ISSN 1432-1955
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| Trefwoorden |
Cryptocotyle Lühe, 1899 [WoRMS]; Cryptocotyle lingua (Creplin, 1825) Fischoeder, 1903 [WoRMS]; Gadus morhua Linnaeus, 1758 [WoRMS]; Heterophyidae Leiper, 1909 [WoRMS]; Merlangius merlangus (Linnaeus, 1758) [WoRMS]
Marien/Kust |
| Author keywords |
Cryptocotyle; Morphological identification; Molecular identification; Heterophyidae; English Channel; Whiting |
| Auteurs | | Top |
- Duflot, M.
- Gay, M.
- Midelet, G.
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| Abstract |
Trematode larvae (metacercariae) causing black spot disease occur frequently in gills, fins, skin and the superficial muscle layers of marine fish. Species within the genus Cryptocotyle Lühe, 1899 are frequently associated with this disease. Descriptions of the metacercarial stage are relatively limited and none has hitherto been reported from fish from the English Channel. The present study reports the morphological and molecular identifications of encysted black spot-inducing parasites from whiting (Merlangius merlangus) and Atlantic cod (Gadus morhua) caught respectively from the north coast of France (English Channel) and from Danish sea waters. Metacercariae were characterised morphologically based on microscopic observations and molecularly using Sanger sequencing of fragments of the mitochondrial cox1 gene and rDNA ITS region. Morphological data were compared with available data in the literature. Phylogenetic trees including reference sequences were built to confirm morphological and molecular identifications. This survey constitutes the first description of C. lingua metacercariae in the English Channel ecosystems. |
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