Note
Exposure to algal toxins may be direct, through respiratory exposure, or indirect via food-web transfer. Thus, the potential for exposure of marine mammals to these toxin classes is dependent upon the occurrence of toxin-producing micro algae within the habitat of the mammals in question and, in the case of food-web transfer, the co-occurrence of appropriate prey species with the toxin producer. This chapter reviews our current understanding of the impacts of algal toxins on marine mammals.