. The Canadian field-naturalist. Natural history. 120 The Canadian Field-Naturalist Vol. 115. Figure 2. Range (shaded area) of the White-beaked dolphin in the Northwest Atlantic. Newfoundland, and Nain, Labrador. It resulted in an estimate of 3486 ( 2001-4971) Lagenorhynchus albirostris (Ailing and Whitehead 1987). Hay (1982), in earlier surveys primarily focused on large cetaceans in adjacent areas, also made estimates con- sistent with this population size. There are not other numerical estimates. White-beaked Dolphins appear off Labrador as ice recedes in June and occur in greatest abun
. The Canadian field-naturalist. Natural history. 120 The Canadian Field-Naturalist Vol. 115. Figure 2. Range (shaded area) of the White-beaked dolphin in the Northwest Atlantic. Newfoundland, and Nain, Labrador. It resulted in an estimate of 3486 ( 2001-4971) Lagenorhynchus albirostris (Ailing and Whitehead 1987). Hay (1982), in earlier surveys primarily focused on large cetaceans in adjacent areas, also made estimates con- sistent with this population size. There are not other numerical estimates. White-beaked Dolphins appear off Labrador as ice recedes in June and occur in greatest abundance in August-September (Boles 1980*). Long-term historical trends in the utilization of this species for food, which could be related to northern coastal abundance, are not evident in Labrador (Brice-Bennet et al. 1977; MacKay and Orr 1987). Jonsgard and Christensen (1968) reported the species as common off southeast Greenland, while Leatherwood et al. (1976) indicated this species was more numerous in the northern portion of its western range. There are no trends evident in sightings collected by the Lighthousekeepers Sighting Network (1979 to 1997) operated by Memorial University of New- foundland (Lynch 1987; Lien, unpublished data). No trends exist in the incidental entrapments of White- beaked Dolphins in fishing gear in Newfoundland (Lien 1988; Lien, unpublished data). Sightings at Mt. Desert Rock in Maine are much less common now than they were prior to the late 1970s; they have also declined around Cape Cod during the same period (Katonaetal. 1993). Eastern Atlantic. In an aerial survey near Iceland Gunnlaugsson et al. (1988) recorded 942 White- beaked Dolphins which if extrapolated suggest a total population of at least a few thousand in Ice- landic waters (Reeves et al. 1996*). Between 1974 and 1975, a total of 2500 to 3000 White-beaked Dol- phins were sighted in the Barents Sea (Benjaminsen et al. 1976). Oien (1990) made a rough estimate of 132 000 ( ) do
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