All around the globe, feed raw materials in almost every category are at record-high prices, and experts say it's unavoidable that the cost of aquaculture feed will rise. But how high and for how long is much harder to pin down.

These days, feed ingredient prices trend on a complex series of interconnected factors in a fine tuned mechanism of moving parts.

Everything from China's pork herd to Brazil's soy production to rainfall in the United States can have a domino effect on supply and demand, and with COVID-19 and the massive shifts it has caused in consumer behavior and global trade, the forces are more complicated than ever, and more difficult to read.