Nonsense

I'm not too concerned about the loss of sea-life because I can't stand seafood. However, isn't there some huge correlation to plankton and oxygen?

But that aside, it's not really a matter of the price driving down consumerism. The study indicated it was not a factor of overharvesting the sea, rather, a combination of that and environmental change and pollution. Those two factors will continue regardless of how much it costs.

I listened to a few podcasts about this over the years, and the real danger does not seem to be extinction or the depletion of plankton and such, but that we are permanently damaging these fisheries and their potential as future food sources.

Which fish to we catch and keep? The big ones. What does that do from an evolutionary standpoint? It selects for smaller fish, and that's exactly what's happening. We are altering the gene pool on fish, making them smaller and less viable all the time.

A seperate issue is coral bleaching (caused by rising ocean acidification from CO2 absorbtion) and by sugars in sewage runoff. There is also general pollution damaging the algae in the ocean, which is the primary driver for atmospheric oxygen generation, but again, that's a seperate topic.