new icn messageflickr-free-ic3d pan white
Peixe-anjo-imperador (Pomacanthus imperator) -  Emperor Angelfish - 30-05-2008 424 | by Flávio Cruvinel Brandão
Back to group

Peixe-anjo-imperador (Pomacanthus imperator) - Emperor Angelfish - 30-05-2008 424

A Juvenile Angelfishes (Family Pomacanthidae).

Text, in english, from "Fishes Australian Museum Fish Site". See at the address www.austmus.gov.au/fishes/fishfacts/fish/pimperatj.htm

Angelfishes (Family Pomacanthidae) are some of the most popular tropical marine aquarium fishes.

Angelfishes of the genus Pomacanthus are known for their dramatic colour changes with growth. The juvenile Emperor Angelfish (upper image) is dark blue-black with a white ring on the rear of the body. This is surrounded by incomplete circles of blue and white.

Adults have diagonal stripes of yellow and purplish-blue on the body, and a curving black bar covering the eye.

Juvenile Emperor Angelfish

Adult Emperor Angelfish at Ari Atoll, Maldive Islands.

This species grows to 38cm in length. It lives on coral reefs throughout much of the Indo-Central Pacific. In Australia it is recorded from the central Western Australian coast to northern New South Wales.

Juvenile Emperor Angelfish are often seen under ledges near cleaner shrimps. The fish in the image is surrounded by the cleaner shrimp, Lysmata amboinensis.

Angelfishes are closely related to the butterflyfishes, family Chaetodontidae. The easiest way to tell them apart is the presence of a large spine on the lower, rear margin of the preoperculum of the angelfishes. This spine is lacking in the butterflyfishes.

Peixe-anjo-imperador (Pomacanthus imperator) - Emperor Angelfish.

 

Estes peixes-anjo são hermafroditas e começam a vida como fêmeas que, eventualmente, podem transformar-se em machos. Cada macho controla um harém de 2 a 5 fêmeas, dentro de um espaço em relação ao qual é extremamente territorial. Aqui, alimentam-se de esponjas, ovos de outros peixes, vermes e algas que raspam dos recifes de coral, com os dentes pequenos e semelhantes a uma escova. Os juvenis, solitários e tímidos, escondem-se em buracos e fendas de áreas mais resguardadas de recifes, lagoas ou canais. Apresentam um padrão de riscas e círculos brancos sobre fundo azul, completamente diferente dos adultos.

19,027 views
25 faves
30 comments
Taken on May 30, 2008