1. W.H. Bayliff, R.S. Shomura, J. Majkowski, and S. Langim (1996 ) Indices of abundance of northern bluefin tuna, Thunnus thynnus, in the eastern Pacific Ocean: a key element in assessment of the interaction of the fisheries for this species in the eastern and western Pacific Oceans . In: Second FAO Expert Consultation on Interactions of Pacific Tuna Fisheries. FAO Fish. tech.Paper).
2. A suspended migration of humpback whales Megaptera novaeangliae on the west coast of South Africa