179
Fig. 4.72 Changes in a
fish population in the
case of different grade
of fishing, (a) Growing
population, (b)
Population in balance,
(c) Decreasing
population
Fig. 4.73 Global trends in the state of the world’s marine fish stocks between 1974 and 2015 (Data source: http://www.
fao.org/state-of-fisheries-aquaculture)
4.4 Changes in the Biosphere