Here's why:
* Fish eggs are very small and delicate. It would be difficult for dolphins to efficiently capture and consume them.
* Dolphins are opportunistic feeders. They are more likely to target larger prey that is easier to catch.
* Fish eggs are a valuable food source for other marine life. Many species rely on fish eggs for sustenance, and dolphins likely have other prey options that are more abundant.
However, it's possible that dolphins might occasionally ingest fish eggs unintentionally while feeding on other prey.
Overall, it's safe to say that fish eggs are not a significant part of the bottlenose dolphin's diet.