OLO has considerable evidence online in my earlier comments about algae.

Here now at the following link it is possible to see evidence, independent to my input, of the difference between normal and algae inundated areas of ocean.
http://www.nasa.gov/topics/earth/features/ocean-bloom.html

N.B
Government in Australia must become aware algae is also killing ocean ecosystems. There is impact and consequences especially for nearby seafood dependent SW Pacific Islands people.

Warmth in algae is an aside issue that also needs dire critically urgent attention, including proper sewage treatment worldwide to reduce the nutrient loading proliferating so much algae.

Suppressing news of evidence of ocean phenomena-damage and debate about solutions is causing damage and consequences to dramatically worsen.

algae are sensitive to changes in both temperature and solar radiation.
http://www.pnas.org/content/early/2013/11/13/1313775110