**4. Conclusions**

Despite the levels of aflatoxin in the samples below the limits of the Brazilian regulation for animal feed, the mycotoxin must be avoided. The studies in this matter are necessary, espe‐ cially in areas such as the Amazon communities where the consumption of fish or fish prod‐ ucts occurs 6 d/week, with 6.1 g/capital/d [27]. This data confirms that "piracuí" has an economic relevance [28]. Concerning the levels of aflatoxin found in the samples, it is neces‐ sary a work of good manufacture practices and safety storages conditions. The results of *aw* and *mc* this research provide data for the study of materials that can be used as packaging for storage of piracuí due the product to be frequently traded in the Amazon region. Con‐ cerning the significance of the fish flour for the Amazon region consumers, other studies are necessary to evaluate other toxicological aspects and the risk analysis.

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