The area of the Arctic ice is declining quickly, and the volume of the Arctic ice is declining even more quickly. The volume is down 80% since just 1979.
Look at the graph you posted:
The 90's are lower than the 80's and the 2000's average is lower than the 90's. And the end of the 2000's and early teens are lower than the 2000's. 2008 and 2009 and 2010 "rebounded" after 2007 but then we got 2011 and 2012 setting new lows - so how does a "rebound" in 2013 mean anything? It is still lower than the 2000's average (which includes 2007 in the mix).
Plant productivity declines when temperatures get too hot, as they are now, and too much carbon dioxide is very hard on them as well. Pollinators are in deep decline.
Plankton is down about 40% since the late 1950's. And many reefs are bleached and dying. Jellyfish are the only species on the rise.