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Blue Whale 5-Year Review

November 09, 2020

This document is the ESA 5-year review of the species based on the best available data.

Under section 4(c)(2) of the Endangered Species Act, we are required to conduct a review of all listed species at least once every 5 years to assess whether the current listing status remains accurate. In 2018, we initiated the blue whale 5-year review, which was conducted by the NMFS Office of Protected Resources in collaboration with the NMFS Alaska Fisheries Science Center. The 5-year review is based on the best available data through January 2020. We concluded that no change to the listing status of the blue whale is warranted at this time.

Last updated by Office of Protected Resources on 04/14/2025

5-Year Review