. The Canadian field-naturalist. 1988 Meredith and Campbell: Status of the Fin Whale 363. Figure 5. Fin Whale engaged in energetic side feeding among large surface swarms of Meganyctiphanes norvegica and school of Atlantic Herring {Clupea harengus harengus) and Mackerel {Scomber scombrus) off Brier Island, Nova Scotia, August 1974 [Photograph by D. E. Gaskin; frOm Gaskin (1982) by permission]. Species Movement: The Fin Whales undergo regular seasonal migrations between temperate waters, where they mate and calve in winter, and the summer feeding areas in cooler, more polar, waters (Gambell 198
. The Canadian field-naturalist. 1988 Meredith and Campbell: Status of the Fin Whale 363. Figure 5. Fin Whale engaged in energetic side feeding among large surface swarms of Meganyctiphanes norvegica and school of Atlantic Herring {Clupea harengus harengus) and Mackerel {Scomber scombrus) off Brier Island, Nova Scotia, August 1974 [Photograph by D. E. Gaskin; frOm Gaskin (1982) by permission]. Species Movement: The Fin Whales undergo regular seasonal migrations between temperate waters, where they mate and calve in winter, and the summer feeding areas in cooler, more polar, waters (Gambell 1985). The migrations in the Southern Hemisphere are perhaps more distinct and better documented than those in the Northern Hemisphere. The northern and southern popula- tions do not converge towards the equator at the same time because of the opposition of the seasons in the two hemispheres, , southern whales are six months out of synchrony with northern whales. It is possible that some interchange of individuals does occur (Gambell 1985). In the eastern North Pacific, Fin Whales are found in the summer in the Chukchi Sea, around the Aleutian Islands, the Gulf of Alaska and down the coast to California (Figure 3). During the winter they are seen off southern California, south to Baja California, and many may winter out to sea between 17° to 37° N latitude and west to 158°W longitude (Rice 1974; Gambell 1985). In the North Atlantic, Fin Whales spend the summer months from the region of Cape Cod north to 75° N latitude, around Greenland, Iceland, North Norway, Jan Mayen, Spitzbergen, and the Barents Sea. Some Fin Whales are present in the Mediterranean the year round (Gambell 1985). During the winter, the whales are found from the ice edge south to the Caribbean and the Gulf of Mexico in the west, and from southern Norway to the Canary Islands in the east (Gambell 1985). In the Southern Hemisphere, migrations are characterized by sexual and age-class segregation but this be
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