Spread of parasites and diseases of aquatic organisms by acclimatization: a short review

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Abstract
The influence of transportation and acclimatization of fishes and shellfishes on their parasites and pathogens is discussed. It has been shown that aquatic organisms lose most of their parasites during the period of establishment, but some species may remain. In most instances these are parasites with direct development (Myxosporea, Monogenea, Crustacea). Species with intermediate hosts, but which utilize many species of invertebrates, establish more easily than those which have specific invertebrate intermediate hosts. If there are closely related host species to those introduced into the water body, parasites brought to it can transfer to these related species. This may result in a high infection of the native species and significant mortality.

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