ABSTRACT
It has been well documented in several investigations that lactic acid bacteria (LAB) are a
part of the native microbiota of aquatic animals from hatching onwards (Table 1). The
great variation in the frequency of LAB reported in the different studies quoted in
Table 1 may reflect that real variation exists between fish species, but these results may
also reflect the shortcomings of the methods used to select for and isolate these bacteria.
Furthermore, geographical location must also be taken into consideration.
