All Japan found out that foreshadowed the dead birds that by entire flocks falling from the sky around the world

Since 25 February, were the precursors future tragedies in Fukushima

Ringing Earth - Tibetan Monks in "spirit cave" hear new sounds 

However, the tsunami is global, and concentrations of fish near Acapulco is locally.
The phenomenon looks more like a reaction to a local chemical pollution.

I've seen this before.

 In these photographs the fish photographed in one of the ponds of St. Petersburg. Fish use any opening in the ice to breathe oxygen.Lack of oxygen in the ponds due to strong pollution of urban water.(February 2011)
Unusual phenomenon could be observed in Sevastopol. In December and January, whole water area filled with jellyfish.