Over the past decades, various free-living animals (hosts) and their parasites have invaded
recipient areas in which they had not previously occurred, thus gaining the status of aliens or …

Although 63 and 55 species of helminths have been reported from each species of Atlantic
eel and from 29 to 19 for each species of Pacific eel only the monogeneans …

Defence mechanisms of fish can be divided into specific and non-specific that act in concert
and are often interdependent. Most fish in both wild and cultured populations are vulnerable …

Probably half of all animal species exhibit a parasitic lifestyle and numerous parasites have
recently expanded their distribution and host ranges due to anthropogenic activities. Here …

The nematode Anguillicoloides crassus is one of the many threats hanging over anguillid
eels, now known to infect six Anguilla species worldwide. It was first described in Japan, in …

The effect of Anguillicola crassus, Pseudodactylogyrus bini and Pseudodactylogyrus
anguillae infection on the behaviour of downstream migrating adult European eels Anguilla …

Background The invasive eel parasite Anguillicoloides crassus (syn. Anguillicola crassus) is
considered one of the major causes for the decline of the European eel (Anguilla anguilla) …

Eel populations from the small rivers on the Island of Reunion (French Overseas Department
in the Indian Ocean) were investigated with respect to the occurrence and abundance of …

Invasive species are a major threat to ecosystems worldwide. Their effects are versatile and
mostly well studied. However, not much is known about the impact of invasion on native …

Freshwater eels (Anguillidae) are facing numerous anthropogenic impacts that have led to
declines in abundance for nearly all species. They have a complex life history that includes …