. The Canadian field-naturalist. 1990 Leatherwood, Matkin, Hall, and Ellis: Killer Whales 363. STATUTE MILES 148* 147* 146* Figure I. The three regions of southern Alaska where Killer Whales were studied in 1984 (inset) and a detail of Prince William Sound, where Killer Whales were identified form photographs taken 1976 through 1987. Strait. Of these, 256 were assigned to pods (Leatherwood et al. 1984). Photographs of 238 individuals were of sufficiently high quality to be reproduced in a catalogue of Killer Whales photo- identified in PWS and SEA through 1984 (Ellis 1984)'. Repeat sightings o
. The Canadian field-naturalist. 1990 Leatherwood, Matkin, Hall, and Ellis: Killer Whales 363. STATUTE MILES 148* 147* 146* Figure I. The three regions of southern Alaska where Killer Whales were studied in 1984 (inset) and a detail of Prince William Sound, where Killer Whales were identified form photographs taken 1976 through 1987. Strait. Of these, 256 were assigned to pods (Leatherwood et al. 1984). Photographs of 238 individuals were of sufficiently high quality to be reproduced in a catalogue of Killer Whales photo- identified in PWS and SEA through 1984 (Ellis 1984)'. Repeat sightings of identifiable individuals in PWS from 1977 through 1984 were summarized elsewhere (Leatherwood et al. 1984; Matkin et al. 1985; von Ziegesar et al. 1986). 'An additional pod of 19 animals (designated as AR in Alaska and as R in British Columbia) was not included in this catalogue, as only 3 of its members were positively identified in Alaska in 1984 and the entire pod had already been catalogued in British Columbia (Bigg et al. 1987). Work in SEA and Shelikof Strait was discon- tinued after 1984; however, research in PWS was continued through 1987, albeit on a much reduced scale (Matkin et al. 1985, 1986, 1987; Matkin 1986, 1988; Hall and Cornell 1986; von Ziegesar et al. 1986). An updated catalogue depicting 268 animals photo-identified in PWS and SEA from 1976 through 1986 was published (Ellis 1987). This paper reports results of all photo- identification efforts in PWS from 1976 through 1987 and discusses those results in the context of other photo-identification studies of this species. Materials and Methods Photo-identification Except for opportunistic photographs taken prior to 1984, all photographs used in this study were. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club
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