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Home -> Kingdom Animalia -> Phylum Chordata -> Subphylum Vertebrata -> Class Actinopterygii -> Order Perciformes -> Suborder Labroidei -> Family Labridae -> Species Cirrhilabrus exquisitus

Cirrhilabrus exquisitus
exquisite fairy wrasse
(Also: exquisite wrasse)



2009/11/29 02:15:07.029 US/Eastern

By Erin Wayman

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Actinopterygii
Order: Perciformes
Suborder: Labroidei
Family: Labridae
Genus: Cirrhilabrus
Species: Cirrhilabrus exquisitus

Geographic Range

Found from east Africa to the Tuamotu Islands, north towards Japan and in the Great Barrier Reef of Australia.

The Exquisite Wrasse is predominantly the only species of Wrasse found over its geographic range.

(Randall, 2000; Allen, 2000)

Biogeographic Regions:
indian ocean (native ); pacific ocean (native ).

Habitat

The Exqusite Wrasse is normally found on reef slopes and lagoon habitats that are around ten meters below sea level. They prefer areas that are prone to strong currents.

(Randall, 2000; Allen, 2000)

Aquatic Biomes:
reef ; coastal .

Physical Description

Mass
2 kg (average)
(4.4 lbs)


Color variation, due to geographic differences, is common between the Pacific and Indian Ocean forms. Males and females do not have the same coloring, although females attain the ability to change sex during their lifetime. When the female changes sex, her coloring and markings change into that of the male. The females are usually olive or reddish-brown in color with dark and light stripes that run along the sides of the body. A blue stripe is present on the posterior side of the female's body and dark spots are located on the underside of the fins. The males are more colorful and have bright red areas on the dorsal and pectoral fins. The younger forms do not differ greatly from the adults, but are distinguishable from the adults because they have a white spot on their nose.

(Randall, 2000; Allen, 2000)

Some key physical features:
bilateral symmetry .

Reproduction

The Exquisite Wrasse mates year round. The male courts females by following her and showing the brilliant colors located on the sides of his body. He then releases sperm into the water where the female filters it through her gills and becomes impregnated. Like most other marine life, the female does not watch over the eggs. The eggs hatch and the Wrasse enters what is sometimes called the larval stage. The newborn fish are colorless with a spot on the end of their nose. For food, they often clean the bacteria off other fishes gills until they are big enough to find food in other places.

(Shaws, 1999; Wells, 1999; Stevenson, 1999)

Behavior

The Exquisite Wrasse is normally found in small or fairly large schools. During courtship, the male Wrasse displays his purple markings. These markings serve as a multi-functional characteristic. While the male is courting any number of females, he can display these colors to other males to warn them not to take these females away from him.

In order to protect itself from predators during the night while it sleeps, the Wrasse uses its carnivorous front teeth to burrow into the sand, creating a little hollow in the sea floor. This protects it from predators who do not look on the ocean floor for their food.

(Shaws, 1999; Wells, 1999; Stevenson, 1999; Randall, 2000; Allen, 2000)

Key behaviors:
natatorial ; motile .

Food Habits

Cirrhilabrus exquisitus is a carnivorous fish. It has a unique, sharp, tooth-like appendage enclosed in its mouth that is used to eat its larger prey which is primarily mollusks. In order to get through the hard shell, the Wrasse uses its sharp tooth to break the shell open. Its food also includes zooplankton, rotifers and copepods. Since these organisms are much smaller, the Exquisite Wrasse must filter these foods from the water.

(Shaws, 1999; Wells, 1999; Stevenson, 1999; Taggart, 1992)

Economic Importance for Humans: Negative

Cirrhilabrus exquisitus has an extremely unpleasant taste. Therefore it is not naturally hunted for food by humans.

(Allen, 2000; Randall, 2000)

Economic Importance for Humans: Positive

The Exquisite Wrasse is an extremely interesting fish for scientists to study because of its ability to change sex mid-life.

(Allen, 2000; Randall, 2000)

Conservation Status

IUCN Red List: [link]:
Not Evaluated.

US Federal List: [link]:
No special status.

CITES: [link]:
No special status.

The Exquisite Wrasse is already a rare fish to see, and now its habitat is being destroyed. The pollution accumulated by toxic wastes deposited into the oceans has created a habitat that is not well suited for the Wrasse. Since the Wrasse lives close to shore, it is subjected to denser deposits of toxic wastes.

(Shaws, 1999; Stevenson, 1999; Wells, 1999)

Other Comments

The Exquisite Wrasse moves in schools where there are only one or two dominant males. If these males are removed, the largest female quickly changes sex and becomes the dominant male. In order to change sex, the female cuts down its supply of estrogen. This process insures that offspring will always be produced.

(Allen, 2000; Randall, 2000)

For More Information

Find Cirrhilabrus exquisitus information at

Contributors

Erin Wayman (author), Milford High School.
George Campbell (editor), Milford High School.

References

Randall, D., D. Allen. "Exquisite Wrasse" (On-line). Accessed Oct. 7, 2000 at http://www.coralrealm.com.

Shaw, G., R. Stevenson, H. Wells. 1999. Accessed Oct. 22, 2000 at http://www.bartleby.com/65/wr/wrasse.html.

Taggart, R., C. Starr. 1992. "Biology: The Unity and Diversity of Life". Belmont, Ca: Wadsworth Publishing, Inc.

2009/11/29 02:15:07.849 US/Eastern

To cite this page: Wayman, E. 2001. "Cirrhilabrus exquisitus" (On-line), Animal Diversity Web. Accessed December 06, 2009 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Cirrhilabrus_exquisitus.html.

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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