28 December 2008
Southern Line Islands Expedition
In February and March 2009, the Southern Line Islands Expedition will travel to remote central-Pacific islands like Flint, Vostok and Malden to continue the reef studies done in the Northern Line Islands in 2005 and 2007.
I hope that the project will be a success and the participants will find new ways to save the coral reefs.
You can read more on: http://www.nationalgeographic.com/field/projects/line-islands.html
25 December 2008
28 Dec: Chek Jawa Boardwalk
Time: 3 p.m.
Venue: Meet at Chek Jawa Information Kiosk
Duration of walk: 2 hours
To find out more, visit: http://nakedhermitcrabs.blogspot.com/
17 December 2008
12 Dec: Sentosa Shore Walk
On 12 December, we went to Sentosa for a shore walk. Here are some interesting things we saw during the walk:
Look at this mosiac crab!
Here is the flag used by the Naked Hermit Crabs to mark a spot where there are things for us to see.

Look at this gigantic tire! Although it is a piece of rubbish in the sea, there are wildlife growing on it!
This is a swimming crab.
This is the flower of the tape seagrass. We also saw the fruit!
This is a polka-dotted nudibranch. Isn't it pretty?

Corals!!! :)At the site where we had the walk,the water was amazingly clear and we could see the marine life clearly in the water. I did not expect to see so many different types of marine life, and hope that people will stop polluting the seas so that we will be able to conserve these animals and plants.
16 December 2008
S'pore Coastline Getting Dirtier


29 November 2008
2 Nov 08: The New Paper Big Walk
15 November 2008
17 Oct 08: Pasir Ris

There were a lot of dead crabs too. The worst thing was they were found tangled in or alongside rubbish thrown by inconsiderate beach-walkers.






We saw some sea snails too! Unfortunately their shells were covered with muddy sand so we could not see the colours on them. I am sure that they are colourful.

And we saw a man carrying a bag of gong gong, which is a common delicacy in Singaporean seafood. Not sure if they are safe to eat as the waters are so badly polluted.

Worst of all , we saw a dilapidated Hello Kitty handbag! I wonder why its owner had to throw it away as it is polluting the sea and I believe that the bag was in good condition at that time.



I feel that we should not pollute this sea just because its waters are classified as unsafe to swim in. This will only just make the situation worse.
30 October 2008
Whale Stranded

24 October 2008
Young Marine Biologist Award: Winning Blogs
21 September 2008
New Species Discovered On Aussie Reefs
I like this twisted nudibranch, (Chromodoris Elizabethina), on the reef face off Heron Island most. It is very bright and colourful.
About half of the 300 soft corals found are thought to be new discoveries, although they will only be given names and classified formally once the scientists have compared them against existing species. Unlike their hard-bodied cousins, soft corals do not build reefs but are nevertheless considered vital for the marine environment. These colourful animals can dominate some regions of the sea, covering up to 25 per cent of the ocean floor.The latest discovery is a result of a four-year project centred on the extensive coral reefs of western and north-western Australia and is part of a larger effort to take a census of all marine life in the world, due to be finished in 2010. When complete, the census will be used as a "baseline" to try to quantify the rate at which species are becoming extinct in the marine environment. Coral reefs are considered to be the rainforests of the sea because of their rich biodiversity. It is estimated that something between one million and nine million species of marine creatures live in and around coral reefs, but scientists have little idea of the precise numbers.
Here is a dendronepthya soft coral

ans a colonial salp jellyfish
and a ctenophore or comb jellyfish
You can see more pictures on http://www.guardian.co.uk/environment/gallery/2008/sep/18/wildlife.australia?picture=337754721
19 September 2008
4 Oct: "Secret Shores of Singapore" Talk at Sungei Buloh

11 September 2008
Make Singapore a Coral Haven
You can read more about coral reefs in Singapore at http://coralreef.nus.edu.sg/
07 September 2008
Is West Coast Park's Beach a Rubbish Dump?

There was a lot of rubbish scattered along the shoreline, especially water bottles!

We can't even imagine ourselves living in this sort of environment. How about the marine life? This scene looks very bad on the supposedly "tranquil" West Coast Park! We appeal to all of you to do your part, not to litter and help to clean up the coast. The International Coastal Clean-up is coming. Do your part. Seehttp://coastalcleanup.nus.edu.sg/
We should also learn some lessons from the Japanese, as they are planning the largest clean up event. See
http://www.terradaily.com/reports/Japanese_plan_worlds_largest_cleanup_999.html
31 August 2008
What are Coral Reefs?

A coral reef is composed of a calcereous exo-skeleton secreted by billions of tiny animals called polyps. Millions of polyps grow on top of the limestone remains of former colonies to create the massive reefs. It takes years for some corals to grow even one centimetre! They range in size from a pinhead to a few feet in length. Amazingly, these tiny animals form the only natural structure visible from space.
Each polyp lives in a symbiotic relationship with a type of algae, zooxanthellae, that gives the coral its colour.

Read more at: http://www.nature.org/joinanddonate/rescuereef/explore/facts.html
The Coral Reef Ecosystem
Coral reefs create homes for many different types of animals, from crabs to fishes to turtles! They are like giant cities for marine life. Each and every species of animal in the reef relies on others to keep it alive, so you can imagine what will happen if the reefs are wiped out!
Ocean Threats
Coral Bleaching - This occurs when symbiosis between corals and their symbiotic zooxanthellae breaks down, resulting in the loss of the symbionts and a rapid whitening of the coral host (thus the term "bleaching"). This is actually a stress response by the coral that can be caused by various factors. But the more severe and frequent cases are caused by the rising of the sea surface temperature (SSTs).If the temperature decreases, there is a chance that the corals can recover; but if it persists, the whole colony could be wiped out.
The impacts from coral bleaching are becoming global in scale. They are also increasing in frequency and intensity. Mass coral bleaching generally happens when temperatures around coral reefs exceed 1o C above an area's historical norm for four or more weeks. Sea surface temperature increases have been strongly associated with El NiƱo weather patterns. However, light intensity, (during doldrums, i.e. flat calm conditions), also plays a critical role in triggering the bleaching response. If temperatures climb to more than 2o C for similar or longer periods, coral mortalities following bleaching will increase.
Other causes such as coral disease can also cause the deterioration of coral species. Most diseases occur in response to the onset of bacteria, fungi, and viruses. However, natural events and human-caused activities may exacerbate reef-forming corals' susceptibility to waterborne pathogens.

The Crown of Thorns Starfish(COTs) is a voracious coral reef predator. Populations of the COTs have increased since the 1970s and large outbreaks of starfish can occur wiping out huge tracks of coral reef. Few animals in the sea are willing to attack the spiny and toxic crown-of-thorns starfish, but some shrimp, worms and species of reef fish do feed on larvae or small adults. The decline of these predators, through over-harvesting and pollution, is one factor contributing to the rise in the population of the starfish.






