The Human Impacts Database

A collection of useful numbers for quantifying the impacts of the human presence on Earth.

This quantity is a single measurement of the quantity at a given point in time (2021).


Value:		≈ 3 - 150 × 10¹² kg see this value in other units This is equivalent to... ≈ 3 - 150 Pg
HuID:		85142
Relevant Year(s):		2021
Summary:		This value is an estimate of total global oceanic biomass of zooplankton, including nano-, micro-, meso-, and macrozooplankton. Sample measurements along with satellite data were used to estimate this value.
Method:		Total zooplankton biomass was estimated from sample measurements as well as modeled conversions between chlorophyll and zooplankton, and accounting for environmental variables. The uncertainty reported is a 95% confidence interval derived from the geometric mean of: 1) the standard error of the mean from 1000 bootstrap samples, 2) the confidence intervals from the sampling measurements.
Source:		Hatton, I.A., Heneghan, R.F., Bar-On, Y.M., Galbraith, E.D. The global ocean size spectrum from bacteria to whales. Sciences Advances (2021)
Dataset:		Estimate of oceanic biomass by category (summary_data_table_with_aggregates.csv) global resolution
Original Data License:		CC-BY 4.0
Added By:		rbanks