Chek Jawa: jewel of the northern shores

Throughout 2008, this blog will feature articles on Singapore's reefs and shores, marinelife and the people who work for them.

For January, we thought it most appropriate to feature Chek Jawa, a shore that attained fame when it was spared from reclamation.Chek Jawa does have reefs, although these are small and fragile and not on the route of public guided walks. Chek Jawa, however, boasts a range of shore ecosystems that are now rare on Singapore.

Here's more about Chek Jawa!

Coastal Hill Forest
The hill overlooking Chek Jawa is cloaked in rare trees and plants. These shelter and feed a variety of animals. Many of these plants and animals are no longer commonly seen on mainland Singapore.
Some of the rare birds that live in the coastal forest include the wild Red junglefowl. Here's more details of a recent encounter with junglefowl on Chek Jawa shores on the bird ecology study blog.
Among the rare trees you may see in the coastal forest are the Seashore nutmeg with its red fruit and the Delek air with its stunning blue flowers.

The mangroves of Chek Jawa are now easily explored by the new boardwalk.
Unlike the coastal forest trees, mangrove trees are adapted to being covered in seawater at high tide and to grow in soft mud. They have odd roots and other adaptations as a result of this.
Mudskippers are the highlight of a visit to these mangroves! Other delights include fiddler crabs and mangrove crabs. The kingfishers also hunt along the mudflats near the mangroves. At high tide, from the boardwalk you might spot all kinds of fishes.

Rocky shores
Chek Jawa is among the few places left in Singapore with a natural rocky shore, gravel beach and other interesting rock formations.
At low tide, we can have a closer look at some of the strange animals that live here, including barnacles, crabs and fierce shell-drilling snails. Under the rocks are even more amazing animals such as living cowries, sea stars and fast flat crabs.

Sandy shore
The sand bar is the backbone of Chek Jawa and provides a home for all manner of intriguing creatures.
The Common sea star is a must-see with visitors. Sadly, it is no longer common elsewhere in Singapore. And even more sadly, those on Chek Jawa were wiped out in early 2007 following the massive flooding in Johor. More about this in an upcoming feature article on this blog.

The sand dollar is another intriguing creature to examine, as well as sand crabs and strange worms that build tubes in the sand.

The sand bar is also a popular rest stop for shorebirds that fly in from as far away as Siberia. Overhead, majestic birds of prey hunt for fishes in the sea.

Seagrass Meadows
A calm, shallow lagoon lush with seagrasses forms behind the sand bar. Seagrasses are now rare in Singapore due to habitat loss. Chek Jawa is one of the few places where ordinary people can still see them and the many strange animals that live in this special ecosystem.
First-time visitors are often stunned by the carpet anemones which are bigger than your face and come in a stunning variety of colours. At some times of the year, the seagrass may be dotted with colourful sea cucumbers. Other seagrass dwellers include secretive crabs and snails. A lucky visitor may also encounter sea hares, squids and mantis shrimp.

Coral rubble and reef
This is probably the richest part of Chek Jawa and also the most fragile.
Rarely exposed, even at low tide, this area shelters delicate sea creatures that prefer to be submerged most of the time. These include sponges in bewildering shapes and colours, delicate fan worms and living corals! Octopuses, seahorses, nudibranchs and colourful flatworms are some of the other amazing residents of this special part of Chek Jawa.

More than reefs
Reefs are part of a spectrum of marine ecosystems. Although reefs are often the most attractive and well known to divers, other marine ecosystems are equally important biologically, and just as fascinating to explore. Ordinary people can visit these intertidal habitats at low tide without having to swim or dive. And it's great fun especially for the kids and young at heart.

More than worms!
Chek Jawa is home to large animals too, although they are rarely seen by visitors.
A fascinating sign spotted in 2007 were dugong feeding trails! More about this on the teamseagrass blog and another sighting of dugong also on the ubin volunteers blog. Other amazing creatures recently sighted at Chek Jawa include two otters on the tidechaser blog, and a civet cat on the wildfilms blog.

Stay tuned for more about Chek Jawa
Upcoming feature articles will share more about Chek Jawa's recent history, more about the (sea) stars of Chek Jawa, and other fascinating aspects of this amazing shore. So do check back regularly or subscribe to the rss feed on this blog!

Links to more information
More about Chek Jawa's ecosystems on the wildsingapore website
Information for visitors to Chek Jawa how to get there, what to do, on the wildsingapore website
Guided intertidal walks on Chek Jawa by the Ubin NParks volunteers
Guided Chek Jawa boardwalk tours by the Naked Hermit Crabs
Blogs about Chek Jawa visitors, volunteers and more from the wildsingapore google reader
Photos of Chek Jawa on wildsingapore flickr

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