What is a potential consequence of the oyster die-off in cultured pearl farming?

The correct answer highlights a significant impact of oyster die-offs on cultured pearl farming. When oysters die, there is a direct reduction in the number of live oysters available for pearl production. Cultured pearls are created through the careful nurturing of oysters, and any substantial loss in the population of these mollusks can lead to a decrease in the quantity of pearls harvested. This decline can severely affect pearl farms, potentially resulting in lower yields and ultimately, a decrease in overall pearl production.

In contrast, other potential outcomes tied to this topic, such as increased prices or demand for natural pearls, might occur in the market as a consequence of lower supply but do not directly relate to the immediate impact of oyster die-offs on farming practices. Similarly, while developing new farming techniques could be a beneficial response to challenges in pearl farming, it does not directly answer the question about the immediate consequences of the die-off itself. Thus, focusing on the direct outcome of decreased available oysters aptly highlights how such an environmental or biological crisis directly threatens pearl production levels.