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Amirthalingamia macracantha
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DOI：10.1016/j.pt.2024.01.008.png)
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The tapeworm Amirthalingamia macracantha is a parasite of African cormorants whose larvae infect tilapia and other cichlids. Tilapia are the second most important group of farmed fish worldwide. Over the course of a few years, this parasite has successfully spread to the Middle East, infecting fish and bird populations there. This is a unique example of accelerated spillover ('pathogen pollution') of an alien parasite with a complex life cycle involving three hosts (copepods - fish - birds). Considering the size of the larvae (up to 2 cm) and their localisation in the liver, this parasite poses a potential threat to local communities of wild, endangered cichlids and farmed tilapia. The migration of cormorants between continents poses the risk of further spread of this invasive parasite to other regions. Climate change and the reduction of feeding and resting areas of piscivorous birds near freshwaters could allow the parasite to complete its life cycle in new hosts and regions.
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分享收藏Invasive parasites and global change: Evidence for the recent and rapid spillover of a potential pathogen of tilapias with a complex, three-host life cycle.png)
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