If the temperature of our oceans continues to rise, what possible long-term effect will this have on marine organisms?

The overall temperature of the oceans will increase as will the distribution of marine life.
The salinity of ocean waters will decrease and thus endanger marine life diversity.
The available oxygen of ocean waters will decrease thus reducing marine life diversity.
The geographic range of phytoplankton will be reduced and thus shrink the base of the marine food chain.
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Question

If the temperature of our oceans continues to rise, what possible long-term effect will this have on marine organisms?



The overall temperature of the oceans will increase as will the distribution of marine life. 
   The salinity of ocean waters will decrease and thus endanger marine life diversity. 
   The available oxygen of ocean waters will decrease thus reducing marine life diversity. 
   The geographic range of phytoplankton will be reduced and thus shrink the base of the marine food chain. 
.

anonymous · Answer

The available oxygen of ocean waters will decrease thus reducing marine life diversity. 
this is the correct answer but for this to happen the termperature changes should have to be excessively dramatic. Just imagine the amount of energy needed to increase in 1ºC a body of pure water, now take sea water with all the electrolites dissolved or its high level of salinity...take this question as a theoretical question but very unlikely to happen. besides, the oceans have their ways of regulating temperature and so.