Blue hook fish in the sea.

Powder Blue Surgeonfish swimming over beautiful underwater reefs is a common sight in the humid tropics, especially in the fertile reefs.

This fish is characterized by its bright blue body, yellow fins, and black spots on its chest; flocks of these fish often gather in large groups for food and self-defense.

The fish is very important to marine ecosystems because the number of fish can measure the integrity of coral reefs in a particular area.

📸: Diving Operations Series, Similan Islands National Park

Source: Similan Islands National Park - Mu Ko Similan National park Phang Nga Province

# Blue hook fish # The Park of Similan Island # Similan Islands # Blue hook fish # National Parks Department, Wildlife and Plant Species