half world pop live within 100 miles of coast. 20 out of 30 largest cities are coastal.
1 of 13
importance of ecosystem services
recreation, transport, protein (fish), shoreline protection (mangroves and pebbles)
2 of 13
impacts of cc on oceans
changes in circulation (temp and salinity), expansion of low oxygen zone, more stratified so less nutrients to surface so less PP
3 of 13
heat and oceans
oceans absorb most of heat. N atlantic seen most warming (link between fish abundance and temp). warmer = fish metabolism increase
4 of 13
beaugrand et al 2008
warm loving plankton move N through time, cold living move out of warm regions
5 of 13
effects of sea level rise
NW passage in Arctic will open- econ and trade benefits. flooding risks. SE England will be worst affected
6 of 13
effect on carbonate chem
H ions produced in water when CO2 enters- water becomes more acidic. will only be less alkaline. SOcean and Arctic most affevted- lower conc of carbonate ion normally
7 of 13
calcifying phytoplankton
take C from deep ocean to sed. 70% cold water corals will be gone- aragonite affected first. molluscs v sensitive- made from aragonte
8 of 13
effects of decreasing oxygen concs
were 100 dead anoxic zones in 1980s, now 400. warmer ocean makes it harder to dissolve oxy- less mixing to get oxy in deep ocean. oxy main zone expanding- low oxy in larger shallower area
9 of 13
marine climate change impacts partnership 2013
S regions of UK predicted to become 10% more productive, N regions 20% less productive. fish species distribution will shift N at 27km per decade by 2050 (20 now)
10 of 13
bopp et al 2014
temp has fundamental effect on biological processes as most biological rates are temp dependent
11 of 13
IPCC 2014
vulnerability greatest in polar region animals owing to their narrow temp range
12 of 13
how much will open ocean NPP decrease by in RCp 8.5 in 2100
9%
13 of 13
Other cards in this set
Card 2
Front
importance of ecosystem services
Back
recreation, transport, protein (fish), shoreline protection (mangroves and pebbles)
Comments
No comments have yet been made