gilleain 5 years ago

So the estimate is:

>200 to 600 octillion microbes (2 to 6x10^29 cells) live in the continental subsurface.

Ok, can you give me that in blue whales?

>These cells represent about four to 13 petagrams of carbon, (each petagram is about one billion tons, or more than five million blue whales), which is approximately four to 10 times less than earlier estimates.

Great.

  • mirimir 5 years ago

    I'd say that 4-13 billion tons is a lot.

    Quick grab from the Wikipedia page re biomass.

    humans: ~0.1 billion tonnes

    domesticated animals: ~0.7 billion tonnes

    earthworms: ~1 billion tonnes

    annual cereal crops: ~2.3 billion tonnes

    Antarctic krill: ~0.5 billion tonnes

    fish: 0.8-2.0 billion tonnes

  • vanderZwan 5 years ago

    Serious question: is "blue whales" a common informal unit for biomass?

    • bryanrasmussen 5 years ago

      I think 'large animal that people are familiar with' is for science popularizing articles. Let's say it was less than a 10,000 blue whales, they might have wanted to calculate it in African Elephants.

    • pax 5 years ago

      is cell count / microorganism density relatively constant through species?

      How different would 'a blue whale worth of lab mice' be if counting volume/mass/cells/microorganisms?