IUCN is gradually accumulating information on existing and possibly developing biological invasions and also sensitising the lake and catchment managers to the possibility of alien species entering the area and establishing themselves as invasives. One group of aquatic and semi-aquatic animals that is NOT SO FAR PRESENT in the lake is the freshwater crayfish – which group is not represented by any indigenous species in the lake basin (or, indeed, anywhere on the continent of Africa).

The accompanying leaflets have been prepared to raise awareness about the possibility that these alien creatures could come to the lake – the results of which could be disastrous for the fauna and flora of the lake as well as for the livelihoods of many of its peoples.