Global Short Term Trend: Decline of 30 to >90%
Comments: Recent analysis by Hobday and Tegner (in U.S. Fish and Wildlife Service, 2000) report an overall decrease in abundance of over 99 percent since the 1960's. Commercial landings data show a peak in 1972 followed by a collapse by 1981. See U.S. Fish and Wildlife Service (2000) and Davis (1996) for further information.
Global Long Term Trend: Decline of >90%
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