What total percentage of the fatty acid residues in olive oil contain 18 carbons?

Based on the table "Fatty acid composition of some common edible fats and oils" from http://www.scientificpsychic.com/fitness/fattyacids1.html, 85% of the total fatty acid residues of olive oil are fatty acids containing 18 carbons in their structure.

These fatty acids are stearic acid (3%), which is saturated, oleic acid (71%), which is monounsaturated, and linoleic and alpha-linoleic acid (10% and 1%, respectively), which are polyunsaturated. 

I’d have to say no because without oxygen in the water the fish would all be dead. so if you want to fish for dead fish, pick the ponds with the lowest oxygen concentrations.