How Many Blue Whales Are Left 2025. The recovery of baleen whales including endangered blue whales is now threatened by multiple human sources, including underwater noise, changing availability of. Since many whale populations were severely depleted during the period of commercial whaling, the scientific committee usually expresses relative abundance as a proportion of the estimated number of whales prior to whaling, but sometimes it is expressed as a proportion of the.

As an example (taken from the table. The recovery of baleen whales including endangered blue whales is now threatened by multiple human sources, including underwater noise, changing availability of.