external image --egypt--janob-sna--id=33904.jpg Whitemargin Unicornfish

Scientific name: Naso annulatus


Size (length and weight)

The Whitemargin unicornfish's max length is 100 cm. Weight is unknown.

Physical description
The Whitemargin unicornfish's horn is very long, its body is blue and gray, and its tail fin is black. Body shape is oval. Small teeth and small mouth.


Location in the world

The Whitemargin unicornfish lives in saltwater by the India and Pacific Ocean.

Diet
The Whitemargin unicornfish feeds on large zooplankton.

Predators
Sharks are predators of the Whitemargin unicornfish.

Young
The young are brown and black, but when they get into an adult they start to get the light blue color. The young doesn't have a horn until they get into an adult.

Niche or role in their ecosystem
The Whitemargin unicornfish uses the reef for shelter during the night.

Other names
The Whitemargin unicornfish is also called the Nosefish.

external image tn_Naann_u4.jpg external image 2005-11-27-20-48-38.jpg






Sources:

Academia Sinica
Fishbase
http://www.fishbase.org/summary/speciessummary.php?id=6019
February 11, 2010.
March 17, 2010.


University of California, Berkeley
Discoverlife
http://www.discoverlife.org/20/q?search=Naso+annulatus&b=FB6019
Copyright © 1995-2010
March 17, 2010


Quoy and Gaimard
Encyclopedia of Life
//http://www.eol.org/pages/213850//
Copyright © 2008 to 2009
March 18, 2010

Questions:

-How does it breed?
-What does it eat?
-Does it have an enemy?
-How long is their horn?
-Does it use its horn to kill other fish?