The Videos!

18 07 2008

The videos are finally here! 😀

Velcro crab

This one might be a mole crab! 🙂

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7 July 2008

14 07 2008

Hello! We are here to update again! This is our second post with regards to our trip down to Labrador Park on 7th July. It was our third trip down to the beach and our first data collection.

First, we decided on the 2 areas to be monitored. One is where Jocelyne’s group had plucked out the sea grasses which are currently growing back, and the other patch is chosen by us for comparison and further succession. Each area has a dimension of 25X25 cm. We hammered tent poles around the selected areas with a rock. It was an amusing moment because there were rocks beneath some of the areas where we wanted to hammer the tent poles. The rocks were muddy too so when were hammering like there will not be a tomorrow, mud flew everywhere, ha ha!  

 
Area being marked out with tent poles

Then, we analyzed the 2 plots of sea grasses with the quadrate for future comparison and spent the rest of the time squatting around the patch of Thalassia that we have chosen and poking needles through the blades of it. (The holes, which are at the end of Thalassia, will be used to measure its growth rate.) Poking holes through sea grasses may sound easy but it was very tiring (and dangerous- Mr. Lim poked his finger and it bled. ><). We could not really see the bottom of the sea grass and had to feel around with our fingers. Although it was only a 25X25cm patch, there were many Thalassia and it was impossible to keep track of the ones that had been poked, so we had to estimate.

Also, we did some coastal cleanup on the beach while waiting for the other group and this was what we collected! 😀

 

 


Most of the rubbish consisted of glass pieces, though we did find quite a number of clothing!

Not to forget our findings! 

 
Velcro crab and its camouflage

Mr. Lim was thoroughly excited when he lifted the brick that Jocelyne’s group had placed as a marker the last time, and found that this little guy (as Mr. Lim calls it) was hiding underneath it. Indeed, marine creatures are professionals at camouflaging, none of us realized this crab was a crab when the brick was lifted!

We had planned to insert a video here, however, we do not know how to upload a video; adding media onto wordpress and youtube backfired on us! 😦


Blue sea anemone- You could say we’re friends with this creature, we see it everytime we visit! They are like the mimosa; when you touch them, they shrink back and grow bigger gradually later.


Another kind of anemone (with tentacles)
at its larges!. We had to be careful not to agitate it to result in it shrinking back when we took the picture. Interesting find! 🙂

And last but not least, a crab of unknown identity!


Mr. Lim was yet again very excited about this as he and Jocelyne examined it closely. They took many many pictures and a video!

Again, we wanted to upload a video here, but D: So sorry!! Maybe, next time?

Here is a group shot with Jocelyne, our senior. 🙂

All in all, although the trip ate up our youth day holiday, we aren’t complaining! The day ensured much laughter and joy, as well as a deeper understanding toward our marine environment. We cannot wait for our next trip. Our bootees are ready! 🙂

Danielle, Jolyn, Xinyi

 





170708 Seagrass Monitoring!

14 07 2008

Hello, it’s us again! (: We went to Labrador Park on 7 July to collect our very first set of data. We reached there at 8 in the morning and Jocelyne came as well. The data collection includes knowing the substrate (sand, shell and mud), the percentage composition of each seagrass species and the % of total seagrass coverage. It also includes epiphyte coverage, algae coverage and canopy height. There was also a column for us to fill in what other organisms we saw within that quadrat. The organisms most commonly seen were the snails! It was fun trying to spot snails and crabs under all the leaves of the seagrass, and at a point of time, we got really excited whenever we managed to spot a small little shell stuck to the underside of a leaf.

Initially, we were quite slow, as we needed some time to get used to the recording of data, which resulted in Mr Lim and Jocelyne rushing us and warning us about the incoming tide. But we got better at it towards the end as we became more confident of our judgment and were thus much quicker in deciding on the various type of coverage eg total seagrass, algae. Perhaps it was because we saw the tide heading towards us slowly but surely, and eventually had the sense of urgency to complete our data collection (:

While we were doing 33 quadrats, Xinyi’s group was doing the vertical growth and they found 2 very interesting crabs! One of them was called the Velcro Crab, which had various bits and pieces of seagrass and small shells all over its body. 

 Considering the fact that it actually thinks of using such a camouflage, it really is a clever creature!

The other was an unknown crab that even Mr. Lim didn’t know.

We found a quadrat lying around and it made use of a number turning system to keep track of the number of quadrats. We might do the same thing rather than put laminated number cards as it is more organised (:

The video of the velcro crab will be hosted soon by the other group so check back for more!

Cheryl Jiemin Joyce (: