Multiple analysis of the whaling issue: Understanding the dispute by a matrix Joji Morishita, Marine Policy 30: 802–808 (2006)
An emerging issue in the science of whales is the role of whales in the ecosystem. When stomach contents were analyzed as part of the scientific whaling programs, it was found that baleen whales eat a large amount of commercially important fish . Clearly, when conservation requires a reduction in fishing effort or the number of fishing vessels in order to realize the recovery of fishery resources, we need to consider whether the consumption of these resources by whales undermines such efforts. Fisheries management organizations including the United Nations FAO are increasingly expressing the need for an ecosystem approach to fisheries management .
 Morishita J, Goodman D. Competition between fisheries and marine mammals―feeding marine mammals at the expense of food for humans. In: Proceedings of the Third World Fisheries Congress, 31 October–3 November 2000, Beijing, Reprinted in: A New Focus for the International Whaling Commission. Published by The Institute of Cetacean Research, Tokyo. 2001.  Food and Agriculture Organization of the United Nations, Report of the Reykjavik Conference on responsible fisheries in the marine ecosystem, Reykjavik, Iceland, 2001; FAO Fisheries Report No. 658. Rome. Report of the 24th session of the Committee of Fisheries, FAO, para.39, 2001.
The effects of future consumption by the cape fur seal on catches and catch rates of the cape hakes. 4. Modelling the biological interaction between Cape fur seals Arctocephalus pusillus pusillus and the Cape hakes Merluccius capensis and M. paradoxus. Punt and Butterworth, South African Journal of Marine Science 16: 255-285 (1995)