What could cause the demand curve for fish to shift?

Question

Quizplus · Accepted Answer

An increase in the price of a substitute good for fish (such as chicken) would cause consumers to shift away from fish and towards the substitute, decreasing the demand for fish and shifting the demand curve to the left.
A decrease in the price of a close substitute for fish (such as shrimp) would make that substitute more attractive to consumers and would therefore decrease the demand for fish, shifting the demand curve to the left.
An increase in consumer incomes would increase the demand for fish, shifting the demand curve to the right. Therefore, all of these factors can cause the demand curve for fish to shift.

What Could Cause the Demand Curve for Fish to Shift