第(9/17)页aleutian islands\/bering sea (goa\/ai\/bs) stock and the west coast stock which ranges from southeast alaska to california at1 is considered a depleted stock; it was affected by the exxon valdez oil spill and declined from 22 individuals to eight between 1989 and 2004 the goa\/ai\/bs stock may number around 500 whales while the west coast transients number over 320 orcas with over 200 along southeast alaska， british columbia and washington and over 100 orcas off california california transients do not appear to intermingle much with those further north and west coast transients may be divided into sub-munities
offshore: a third population of orcas in the northeast pacific was discovered in 1988， when a humpback whale researcher observed them in open water as their name suggests， they travel far from shore and feed primarily on schooling fish however， because they have large， scarre
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