Approximately 8 million metric tons of plastic waste washes off land into the ocean each year. Bottle caps, toothbrushes, tiny plastic fragments, filaments, pellets, film and resin float about in the water columns.

Algae are an interesting natural resource because they proliferate quickly. They are not impinging on food production. And they need nothing but sunlight and a bit of waste water to grow on.

Sea bass or sea bream, by far the most consumed fish species around the Mediterranean area, increasingly originate from aquaculture.