Yellow-headed jawfish Facts
Yellow-headed jawfish Facts
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| Interesting Yellow-headed jawfish Facts: |
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| Yellow-headed jawfish is small fish that can reach 4 to 5 inches in length. |
| Yellow-headed jawfish has bright yellow head and bluish green body. Certain populations of yellow-headed jawfish have black spots on the chin. |
| Yellow-headed jawfish is also known as pearly jawfish due to pearlescent bluish body. |
| Yellow-headed jawfish has big mouth, long pelvic fins and slim, tubular body. Entire body (except the head) is covered with cycloid scales (scales with smooth texture and smooth edges). |
| Yellow-headed jawfish is sand-dwelling animal. It digs burrows in the sand and covers the entry hole with pebbles. Burrow is vertical tunnel that ends with a chamber. |
| Yellow-headed jawfish is diligent creature. It constantly works on its burrow, removes excess sand and adds new material to prevent collapse of the created structure in the water. Yellow-headed jawfish scoops and eliminates accumulated sand with its wide mouth. |
| Yellow-headed jawfish spends most of the time hidden inside the burrow. Lucky divers can see only the head of yellow-headed jawfish that protrudes from the hole. Yellow-headed jawfish hovers near the burrow and searches food only when it is sure that predators are away. |
| Yellow-headed jawfish is a carnivore (meat-eater). Its diet is based on zooplankton. |
| Captive yellow-headed jawfish are known as good jumpers. They can easily jump out of the aquarium when they are startled. Yellow-headed jawfish are often bullied by damsels, pygmy angelfish and sand perches when they are kept in the same tank. |
| Yellow-headed jawfish often look like they are dancing while they are vanishing and appearing from their burrows. When they live in large groups on the small territory (such as aquarium), they occasionally exclude some of the fish from the group. Rejected yellow-headed jawfish often moves to the corner of aquarium where it dies. |
| Natural enemies of yellow-headed jawfish are moray eels, frogfish, scorpion fish and triggerfish. |
| Males are territorial. They use their big mouth to chase away all intruders. |
| Eggs and sperm cells of yellow-headed jawfish merge in the water. Male collects fertilized eggs into the mouth and carries them until they hatch. He occasionally spits them out and then quickly collects them back, to ensure proper aeration of eggs. |
| Eggs of yellow-headed jawfish hatch after 7 to 9 days. |
| Yellow-headed jawfish can survive 5 years in the captivity. |
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