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You are here:   Habitats > Rubble crest

Habitats

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Species from the Rubble crest at Heron Island:
Red-throated Ascidian
Herdmania momus
Red-throated Ascidian
Alyssa Budd
Red-eyed Rock Crab
Eriphia sebana
Red-eyed Rock Crab
Andrew Taylor
Tiger Cowry
Cypraea tigris
Tiger Cowry
Chantelle Reid
Chiton
Acanthopleura gemmata
Chiton
Chrissa Athousis
Star Ascidian
Botryllus schlosseri
Star Ascidian
Dylan Moffitt
Topshell
Trochus niloticus
Topshell
Emily Smith
Lacy Tubeworm
Filograna implexa
Lacy Tubeworm
Emma Blacklock
Scaley Turban
Turbo perspeciosus
Scaley Turban
Kirsten Lenske
Gold Ring Cowry
Cypraea annulus
Gold Ring Cowry
Lauren Hughes
Ass
Haliotis asinina
Ass's Ear Abalone
Matthew Hoskin
Flexible Chiton
Cryptoplax larvaeformis
Flexible Chiton
Samantha Oliver
Short-tailed Latirus
Latirus polygonus
Short-tailed Latirus
Shunsuke Sogabe
Furrowed Clusterwink
Planaxis sulcatus
Furrowed Clusterwink
Terence Tan
Elephant Slug
Scutus antipodes
Elephant Slug
Zachary O'Leary
Eroded Cowry
Erosria erosa
Eroded Cowry
Bartholomew Woodham
Hermit Crab
Calibanarius corallinus
Hermit Crab
Chi Wai Lau
Luzon Seastar
Echinaster luzonicus
Luzon Seastar
Ellen Jackson

Ophioplocus imbricatus

Emma Ceccato
?Sea squirt
Ascidia glabra
?Sea squirt
Emmanuelle Zoccola

Pyura sp.

Gillian Backhouse
Burrowing urchin
Echinometra mathaei
Burrowing urchin
Jake Horton

Cypraea (Erronea) xanthodon

Matthew Schmidt
Green Brittle Star
Ophiarachna incrassata
Green Brittle Star
Shannon Duffy
Leach
Botryllus leachi
Leach's Sea Daisy
Ying Ying Chia
White-spotted Hermit Crab
Dardanus megistos
White-spotted Hermit Crab
Storm Martin
Wavy Turban
Turbo undulatus
Wavy Turban
Feng Yi Tham
Sea mat Anemone
Palythoa caesia
Sea mat Anemone
Ka Hei Charlotte Chan
Lion
Euapta godeffroyi
Lion's Paw Sea Cucumber
Megan Permyakoff
Boring Sponge
Cliona
Boring Sponge
Christelle Legrand
Sticky Anemone
Cryptodendrum adhaesivum
Sticky Anemone
Guen Ho
Chiton
Acanthochitona sp.
Chiton
Shannon White
Ridged Sponge Crab
Stimdromia lateralis
Ridged Sponge Crab
Cherie Chan
Salp
Thalia Democratica
Salp
Brook Anderson
Sea Squirt
Trididemnum sp.
Sea Squirt
Georgina Walker
Silver Conch
Lentigo lentiginosus
Silver Conch
Asia Armstrong
Button Polyp Anemone
Protopalythoa sp.
Button Polyp Anemone
Kirsten Schmidt

Reteporella graeffei

Bridget Bradshaw
Bubble-tip Anemone
Entacmaea quadricolor
Bubble-tip Anemone
Nicola Wood
Green Spoonworm
Bonellia viridis
Green Spoonworm
Lucie Malard
Sea slug
Elysia sp.
Sea slug
Sheridan Rabbitt
Topshell
Trochus stellatus
Topshell
Patricia Galvao Santos Reis
Brittle Star
Ophiactis savignyi
Brittle Star
Breeana Heaslip
Sheep
Haliotis ovina
Sheep's ear abalone
Tim Vance
Colonial Sea Squirt
Ecteinascidia diaphanis
Colonial Sea Squirt
Victoria Dewar-Fowler
Headshield slug
Philinopsis gardineri
Headshield slug
Louise Pointon
Rosy nudibranch
Marianina rosea
Rosy nudibranch
Elisha Simpson

Rubble crest

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The rubble crest is part of the reef rock rim, which forms the highest part of the intertidal portion of the reef, usually a few centimetres higher that coral growth observed on the reef flat and slope. Breaches in this continuous rim around Heron Island Reef are formed by tidal channels, which flow heavily at low tide when oceanic levels drop below the water level on the reef flat. Coralline algae cement the upper surface of the rim, often mounting loose coral rubble and boulders to the solid reef. The rubble crest consists of both cemented and loose coral boulders and plates, some of which stand over 2m high. This zone has a great diversity of mobile and sessile species, including a range of gastropods, brittle stars, crabs, shrimp, ascidian, sponges, bryozoans and polychaetes, most of which inhabit or take refuge under the boulders.



The reef crest. Photos by Sandie Degnan.