Purple Mud Crab (Scylla tranquebarica)
Sungei Buloh Wetland Reserve, 17th August 2015

An assortment of crabs native to Singapore’s marine, mangrove, and freshwater ecosystems:
Top row (L-R): Flower Crab (Portunus pelagicus), Pink-fingered Tree-climbing Crab (Episesarma chengtongense) & Orange Mud Crab (Scylla olivacea)
Bottom row (L-R): Lowland Freshwater Crab (Parathelphusa maculata), Johnson’s Freshwater Crab (Irmengardia johnsoni) & Singapore Tree-climbing Crab (Episesarma singaporense) @ VivoCity

The Festival of Biodiversity 2014 has come to an end! A big thank you to all the people who contributed their time to share stories and information about the wild side of Singapore that not many people know about or appreciate. And of course, kudos to all the people who visited our booths and learn something about the natural splendours that can still be found in Singapore. See you again next year!

Carapace of Mud Crab (Scylla sp.)
Pulau Ubin, 15th November 2009

All Mud Crabs were once lumped under a single species, although further research indicates that there are actually four species, three of which are known to occur naturally in Singapore. These are the Orange Mud Crab (Scylla olivacea), the Green Mud Crab (Scylla paramamosain), and the Purple Mud Crab (Scylla tranquebarica). The Giant Mud Crab (Scylla serrata), although widely distributed throughout the region, and commonly imported for consumption, has not been confirmed to occur locally; any recent records in Singapore probably represent escapes or releases from captivity, rather than a naturally-occurring population.

Green(?) Mud Crab (Scylla paramamosain) (?)
Tanah Merah, 8th February 2009

This was one of many dead and dying mud crabs that were found along a small stretch of canal at Tanah Merah. Nearby, outside the canal, a group of people were happily releasing more live mud crabs into the sea. Some of these mud crabs still had raffia string tied around their pincers and legs, while others were being caught by anglers and other visitors with nets and buckets. If only the well-meaning but misguided people could see for themselves the broader consequences of their actions.

Releasing of Animals – Good or Bad?