Pinecone Fish Pictures

 
Top Left Solid Corner

Pinecone Fish Photos Showing This Unusual Armored Fish

Top Right Solid Corner

The pinecone fish, or pineconefish, is an unusual armored fish of the Indo-Pacific whose body has a vaguely pinecone pattern made by the joining of hard scutes, which provide protection to the fish. The species featured on this page is Monocentris japonica. It is 8-15 cm long (3-6 in), and is yellow to orange in color. It has a large, blunt head, and interestingly, its dorsal fin is not situated on the center of its back like that of most fish, but is off-center, at a position of 1:00 or 11:00 when looking at the fish head on. The second dorsal and anal fins are at the rear of the animal, pointing backward.

All pinecone fish have phosphorescent organs at either side of the lower jaw that can turn off and on by movement of the jaw. These bioluminescent organs attract plankton on which the pinecone fish feeds at night. The bioluminescence is caused by phosphorescent bacteria, which live with the fish in a symbiotic relationship. The color of the bioluminescence varies from yellow to blue-green, depending on amount of light reaching it. This fish generally seeks shelter by day in caves, crevices and under overhangs. It lives in tropical and sub-tropical waters.

The pinecone fish is popular in tropical aquariums due to its unusual appearance, but it is considered a difficult fish to keep. Its preferred food is live brine shrimp, and it is active at night, preferring to hide by day.

There are four species of pinecone fish, Monocentris japonica, Monocentris meozelanicus, Monocentris reedi, and Cleidopus gloriamaris, also known as the Pineapplefish. They are all members of the Family Monocentridae, of the Order Beryciformes, Class Actinopterygii.

>>> Click Here To See More Pinecone Fish Pictures

 

picture of a pinecone fish picture of a pinecone fish picture of a pinecone fish picture of a pinecone fish

Picture of a pinecone fish, Monocentris japonicus. The orange organ on side of jaw is bioluminescent. It lives under ledges and in caves, Indo-West Pacific

Picture #: 010540

Picture of a pinecone fish, Monocentris japonicus, Richelieu rock, Andaman Sea, Indian Ocean, Thailand, Asia

Picture #: 059941

Picture of a pinecone fish, Monocentris japonicus. The orange organ on side of jaw is bioluminescent. It lives under ledges and in caves, Indo-West Pacific

Picture #: 010535

Picture of a pinecone fish, Monocentris japonicus, Richelieu rock, Andaman Sea, Indian Ocean, Thailand, Asia

Picture #: 066353

picture of a pinecone fish picture of a pinecone fish picture of a pinecone fish  

Picture of a pinecone fish, Monocentris japonicus. The orange organ on side of jaw is bioluminescent. It lives under ledges and in caves, Indo-West Pacific

Picture #: 010539

Picture of a pinecone fish, Monocentris japonicus. The orange organ on side of jaw is bioluminescent. It lives under ledges and in caves, Indo-West Pacific

Picture #: 010538

Picture of a pinecone fish, Monocentris japonicus. The orange organ on side of jaw is bioluminescent. It lives under ledges and in caves, Indo-West Pacific

Picture #: 010541

 

 

>>> Click Here To See More Pinecone Fish Pictures