A neurotoxin known as domoic acid is something that causes shellfish poisoning. Over this issue, there has been a debate that has been going on about the Pacific being intoxicated. It is not only the issue of the ocean being poisoned but also the fishes that are consumed by a human from the very sea. The acid that is the domoic acid is responsible for causing many stomach problems, short term memory loss and even death. Over the past few years, the level of increase in California’s commercial crab fishery industry has not led them to stay closed for several months. They are still waiting to open until the level of toxin drops.