Yellowtail Blue Damselfish, scientifically known as Chrysiptera parasema, is a well-known marine fish found in the Indo-Pacific region.
It was first documented by Fowler in 1918. This fish is known by other names such as Yellowtail Damselfish or Goldtail Demoiselle.
Adults of this species live in coral-rich areas within sheltered lagoons and nearshore coral reefs. They are usually found in small groups on Acropora coral patches.
Yellowtail Blue Damselfish are active during the day (diurnal) and are reef-safe.
Yellowtail Blue Damselfish Interesting Facts
- Yellowtail Blue Damselfish is a marine fish found in the Indo-Pacific region, living in coral-rich areas near lagoons and reefs.
- This fish has a unique appearance with a blue head and body, as well as a yellow tail fin.
- It lays eggs that stick to surfaces underwater.
- Males play an essential role in reproduction by protecting and oxygenating the eggs during development.
Yellowtail Blue Damselfish Habitat
Yellowtail Blue Damselfish is found in the western Pacific region. It lives around the Solomon Islands, northern Papua New Guinea, the Philippines, and the Ryukyu Islands.
There’s an uncertain report of it being seen near the Great Barrier Reef in Australia.
This fish lives in marine environments and is associated with reefs. It doesn’t migrate and usually stays at depths of 1 to 16 meters (3 to 52 feet).
Yellowtail Blue Damselfish thrives in tropical waters within latitudes ranging from 30°N to 13°S.
Yellowtail Blue Damselfish Physical Characteristics
Size: 2.8 inches (7.0 centimeters)
Yellowtail Blue Damselfish is a small fish with a maximum length of 2.8 inches (7.0 centimeters).
This fish has 13 dorsal spines, 10 to 12 dorsal soft rays, 2 anal spines, and 11 to 12 anal soft rays.
It has a blue head and body with a yellow area that extends to the tail fin. The body depth of this fish is about 1.9 to 2.2 times smaller than its standard length.
Yellowtail Blue Damselfish Reproduction
Yellowtail Blue Damselfish reproduces by laying eggs and pairs up with a mate during breeding.
The eggs stick to surfaces underwater. Males protect and oxygenate the eggs during development.