"Prices on a number of farmed species, including salmon, shrimp and selected bivalves, have risen sharply, due to supply problems and higher feed costs. Some capture fisheries species, including tuna, have also registered sharp increases. As a result, the Fish Price Index has risen to the record levels witnessed during the summer of 2011. In the coming months, supply constraints for several important species are likely to keep world fish prices on the rise."
In particular, shrimp, salmon, and tuna prices are all expected to rise as demand remains solid and production isn't able to keep up. Could this mean increased demand for other meat products, and accompanying increased pollution? Seems likely....