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Parasites in imported edible fish and a systematic review of the pathophysiology of infection and the potential threat to Australian native aquatic species
Williams, M.; Hernandez-Jover, M.; Shamsi, S. (2023). Parasites in imported edible fish and a systematic review of the pathophysiology of infection and the potential threat to Australian native aquatic species. Diversity 15(4): 470. https://dx.doi.org/10.3390/d15040470
In: Diversity. MDPI: Basel. ISSN 1424-2818; e-ISSN 1424-2818
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| Author keywords |
imported fish; Australian biosecurity; native aquatic species |
| Auteurs | | Top |
- Williams, M.
- Hernandez-Jover, M.
- Shamsi, S.
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| Abstract |
Previous research has shown that certain types of edible fish imported into Australia are infected with Euclinostomum/Isoparorchis digenetic trematodes. In the present study, imported Channa fish were examined for parasites which were then morphologically identified to the lowest taxonomic unit possible. Here we provide the first Australian report of Pallisentis sp. Van Cleave, 1928 (Prevalence (P) 35.9%) of family Quadrigyridae; Genarchopsis sp. Ozaki, 1925 (P. 16.5%), family Derogenidae and Senga sp. Dollfus, 1934 (P. 4.8%) in edible imported Channa fish (n = 103). Pallisentis sp. and Senga sp. have invasive hold fast organs which cause significant mechanical damage to fish intestinal structures and Euclinostomum/Isoparorchis cause severe pathology and loss of marketability in infected fish. These exotic parasites, if introduced into Australia, have the potential to negatively impact the health, fecundity, resilience and marketability of native and commercial fish species. Biosecurity is a constant ontogenesis of novel hypothesis based on current scientific discoveries. To further increase understanding of how parasitism impacts fish health, a systematic literature review was conducted and the pathophysiology of infection described. Potential exposure pathways and parasite host associations in Australia are discussed. |
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