Acropora millepora

Acropora millepora

Taxonomical systematics

Scientific name

Acropora (Acropora) millepora (Ehrenberg, 1834)

Synonyms

Heteropora millepora

Madrepora convexa

Madrepora prostrata

Madrepora rubra

Madrepora squamosa

Acropora singularis

Acropora librata

Common names

Acropora,

Subgenus

Acropora Oken, 1815

Genus

Acropora Oken, 1815

Family

Acroporidae Verrill, 1902

Suborder

Astrocoeniina Vaughan and Wells, 1943

Order

Scleractinia

Subclass

Zoantharia

Class

Anthozoa

Phylum

Cnidaria

Phylogeny

Closest sibling

Acropora (Acropora) spicifera

Species group

aspera group (Wallace, 1999).

Clade

SFAHL clade (C) (Wallace, 1999).

Clade origination

SFAHL clade (C) origination appears to coincide with the isolation of the Indo-Pacific Tethys from the Caribbean Tethys after early to mid-Miocene (Wallace, 1999)

Geological history

Fossil record

Pliocene, Niue

Local ecology

Habitat

Mostly intertidally on reef flats, or in shallow subtidal area (3m or less) (Wallace, 1999).

Biological characteristics

Zooxanthellate

Hermatypic

Associated organisms

Zooxanthellae: dinoflagellate symbionts of the genus Symbiodinium, most likely clade C (Wallace, 1999).

 

Crabs of the genera Tetralia and Tetraloides (Wallace, 1999).

 

Shrimps of the genera Coralliocaris, Jocaste, Philarius and Periclimenes (Wallace, 1999).

 

Barnacles, small fish (e.g. Gobiodon, gastropods and bivalves (Wallace, 1999).

 

Additionally, coral-feeding such as Chaetodon may feed on the polyps (Wallace, 1999).

 

Acropora millepora at Chinaman's Reef, GBR. Depth 7.5 m.

 

 

 

A. millepora at Chinaman's Reef, GBR. Depth 3 m.

 

 

 

A. millepora at Chinaman's Reef, GBR. Depth 2.5 m.

 

 

 

A. millepora at Osprey Reef, Coral Sea. Depth 5.5 m.

 

 

Skeletal structure

Corallum

A centeral or side-attached base with corymbose growth. Branches up to 55 mm long and 8-15 mm in diameter with no or only a slight taper. Central branches are vertical; marginal branches curve from horizontal to vertical or oblique (Veron and Wallace, 1984; Wallace, 1999).

Corallites

Axial coralites barely protruding.

Captive care

Lighting

Intense (based on shallow habitat)

Water flow

High with turbulence and/or surges (based on exposed habitat and branch thinkness)

Feeding

Zooplankton (e.g. Copepods, Artemia nauplii), particulate organic matter (e.g. finely grated shrimp or mussel meat)

Diseases and other maladies

"Black band disease" had been reported from A. millipora on the Great Barrier Reef (Dinsdale, 1994 in Wallace, 1999).

 

"White band disease" has not so far been reported in A. millipora not from the Great Barrier Reef, but has been reported for several species in the Philippines (Wallace, 1999)

 

Other maladies may be possible including: Shut-down reaction (SDR), which may be the same as Rapid Tissue Degeneration (RTD) and Bleaching.

Reproduction

Sexual reproduction mode

Broadcast spawner (Wallace, 1999)

Sexes

Hermaphrodite (Wallace, 1999)

Asexual methods

Fragmentation due to storms and other physical disturbances infrequent (Wallace, 1999). Fragments can be propagated.

References

Veron J.E.N. 2000. Corals of the World - Volumes 1, 2, 3. Australian Institute of Marine Science, Townsville, Australia. 1382pp.

Veron J.E.N. and Wallace C.C. 1984. Scleractinia of Eastern Australia. Part 5 Family Acroporidae. Australian Inst Mar Sci Monogr Ser VI:, . 485pp.

Wallace C.C. 1999. Staghorn Corals of the World : A Revision of the Coral Genus Acropora. CSIRO, Collingwood, Australia. 420pp.