Masters and PhD theses related to orcas and their ecosystem(s).
2002: Do orcas use symbols? (208K)
An online treatise by Howard Garrett positing that the theory of symbolic interactionism may help account for the divergent and complex cultural traditions found in sympatric orca populations. (October, 2002; 15 page PDF.)
October, 2005 draft of the “Proposed Conservation Plan for Southern Resident Killer Whales (Orcinus orca)” by National Marine Fisheries Service, Northwest Regional Office (183 pages). Delineates actions that the best available science indicates are required to conserve and protect the species. Source: NOAA Conservation planning page for Puget Sound orcas.