Abstract
It is reported the parasitization of Kudoa sp. (Myxozoa, Multivalvulida) within the somatic muscles of the fish Odontesthes bonariensis (Valenciennes, 1835), Micropogonias furnieri (Desmarest, 1823) and Mugil liza Valenciennes, 1836, captured off Rio Grande, Rio Grande do Sul State, Brazil. Other species of fish caught at the same place were not infected. The parasites formed elongated plasmodia inside the muscle fibres. Myoliquefaction or any host tissue reaction were not observed. The morphological and morphometric features of the spores are described, the parasites are compared with other Kudoa species, and the importance of the infection is discussed.
Highlights
Kudoa spp. (Myxozoa, Multivalvulida) are frequent parasites of marine and estuarine fish
A little more than half of the parasites locate within the skeletal muscle fibers, and a number of species are especially important once they cause liquefaction of the host muscle within a short period after the death of the host which becomes useless for consumption
In this paper we report Kudoa sp. infecting bonariensis (Valenciennes, 1835), M. furnieri (Desmarest, 1823) and M. liza
Summary
Kudoa spp. (Myxozoa, Multivalvulida) are frequent parasites of marine and estuarine fish. A recent synopsis of the species reported the existence of 95 nominal species (Eiras, Saraiva, & Cruz, 2014b) infecting a wide range of hosts all over the world. A little more than half of the parasites locate within the skeletal muscle fibers, and a number of species are especially important once they cause liquefaction of the host muscle within a short period after the death of the host which becomes useless for consumption This can occur in both wild and cultured fish, and the infection may be decisive for the economic success of fisheries and farming
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