SENTOSA'S MARINE HABITATS
The warm waters around Sentosa and the Southern Islands support much pelagic life
Beyond the clear waters and sandy beach, Sentosa is home to a variety of marine habitats found on Tanjong Rimau as well as the waters and reefs on Sentosa Beaches.
Check out these marine habitats found on our island here.
ROCKY SHORES AT TANJONG RIMAU
MARINE LIFE IN THE WATERS AND REEFS
Tanjong Rimau, also known as Siloso Headland, is located at the western-most tip of Sentosa. Highlights include sedimentary rock outcrops, fault lines and an extensive rocky shore.
Check out these rocky shore inhabitants:
The Marine Spider (Desis martensi) is one of the few marine spiders in the world. The species was discovered by Dr. Ludwig Carl Christian Koch in 1872 based on a specimen that was collected off Sentosa (then known as Pulau Blakang Mati)! This spider is active during low tides, hunting small marine creatures among the rocks. Its light and hairy body allows it to use surface tension to “walk on water”. During high tide, the marine spider retreats into its crevice in the rock, which is waterproofed using web.
Hairy Crabs (Pilumnus sp.) are common residents of rocky shores, emerging at night to feed on seaweeds and other rocky shore life like worms and colonial anemones. It gets its name from the long hairs which cover most of its body. When the hairs stand up, they help break the shape of the crab, making it difficult to spot. Moreover, the hairs trap the sediments from the shore, which helps the crab to camouflage itself perfectly
WThe rare Banded Brittlestar (Ophiarachnella gorgonia) is a resident on Sentosa’s rocky shores. Like most brittlestars, it is nocturnal, coming out at night to forage for carrion and detritus. Brittlestars have no anus and their mouths are located on the underside of the central disc. During low tide, we can sometimes spot them “snaking” over the rocks with their five long arms. As the name suggests, these arms break easily when threatened, to distract predators, so please refrain from picking them up.
Staying Safe and Caring for Nature
Stay safe when exploring nature on Sentosa and do your part by following these Nature Area Guidelines:
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For emergencies, contact 1800-RANGERS (1800-726 4377)