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Earth's Systems
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Marine biological pump and ocean life
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Fisheries and marine harvest: catch plateau, fishing down food webs and aquaculture
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PARTICIPANTS
RESOURCES
Fishing fleets
Fish
Humans
Aquaculture
Fish
Impact +4 of 5. Click for details.
Impact +3 of 5. Click for details.
Impact +3 of 5. Click for details.
66%
Impact +3 of 5. Click for details.
34%
Impact -4 of 5. Click for details.
Impact -3 of 5. Click for details.
Impact -4 of 5. Click for details.
Impact -3 of 5. Click for details.
↻ balances · moderate · 0.4
Impact +3 of 5. Click for details.
Impact +3 of 5. Click for details.
Impact -3 of 5. Click for details.
Impact +4 of 5. Click for details.
65%
Impact -4 of 5. Click for details.
35%
Impact -4 of 5. Click for details.
Impact +3 of 5. Click for details.
Fleets harvest fish supported by marine primary production; reported marine catch peaked at 86 million tonnes in 1996: uses up Fish
uses up
How much of the true catch is reported? (reconstruction 1950-2010): uses Fish
Reported to FAO (about 66%, computed from 86 of 130 million tonnes): uses Fish
Unreported: discards, small-scale, subsistence and illegal catch (about 34%, computed): uses Fish
Fishing down the food web: the mean trophic level of landings fell from 1950 to 1994 as catches shifted from piscivorous bottom fish to invertebrates and small : uses Fish
Catches first rise then stagnate or fall as lower trophic levels are depleted; reconstructed catch has declined since 1996: uses Fish
Aquaculture, led by inland farming in Asia, has grown to supply much of the world's fish since 1997, with falling fish-in-fish-out ratios but continued reliance: makes Fish
makes
FAO stock status 2019: what share of assessed stocks is fished sustainably?: uses Fish
Sustainably fished (64.6% of stocks, supplying 82.5% of landings): uses Fish
Overfished (35.4% of stocks, a worsening trend): uses Fish
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Start: Fisheries and
marine harvest: catch
plateau, fishing do…
START
Start: Fisheries and marine harvest: catch plateau, fishing down food webs and aquaculture
End: Fisheries and
marine harvest: catch
plateau, fishing do…
END
End: Fisheries and marine harvest: catch plateau, fishing down food webs and aquaculture
Fleets harvest fish
supported by marine
primary productio…
📄1
Fleets harvest fish supported by marine primary production; reported marine catch peaked at 86 million tonnes in 1996
How much of the true
catch is reported?
(reconstructi…
📄1
How much of the true catch is reported? (reconstruction 1950-2010)
Reported to FAO (about
66%, computed from 86
of 130 million tonnes)
📄1
Reported to FAO (about 66%, computed from 86 of 130 million tonnes)
Unreported: discards,
small-scale,
subsistence and illeg…
📄1
Unreported: discards, small-scale, subsistence and illegal catch (about 34%, computed)
Fishing down the food
web: the mean trophic
level of landings fe…
📄1
Fishing down the food web: the mean trophic level of landings fell from 1950 to 1994 as catches shifted from piscivorous bottom fish to invertebrates and small
Catches first rise then
stagnate or fall as
lower trophic leve…
📄2
Catches first rise then stagnate or fall as lower trophic levels are depleted; reconstructed catch has declined since 1996
Aquaculture, led by
inland farming in Asia,
has grown to supp…
📄1
Aquaculture, led by inland farming in Asia, has grown to supply much of the world's fish since 1997, with falling fish-in-fish-out ratios but continued reliance
FAO stock status 2019:
what share of assessed
stocks is fish…
📄1
FAO stock status 2019: what share of assessed stocks is fished sustainably?
Sustainably fished
(64.6% of stocks,
supplying 82.5% …
📄1
Sustainably fished (64.6% of stocks, supplying 82.5% of landings)
Overfished (35.4% of
stocks, a worsening
trend)
📄1
Overfished (35.4% of stocks, a worsening trend)
Positive
Negative
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