29th Jan 2010 -Last trip to lab park ):

6 02 2010

Weather: cloudy/rainy

Time: 4.17-5pm

Tide: 0.3m

This trip marked our last trip to Lab Park. ): The tide was very low, and we could see a lot of seagrass! (insert pic of low tide). Due to the low tide, we finished our random sampling of 33 quadrats in a relatively short time. the seagrass generally looked healthy, except for those which were growing near the shore, which appeared to be black.

After our monitoring we went to explore labrador park. We spotted white eggs deposited on the Thalassia and many other organisms including shrimps, and a bunch of fat and squishy polychaete worms under the rocks.

We managed to explore the other side of Labrador Park which we have hardly ventured into. There, we saw patches of seagrass. However, the patch of seagrass is contained within the rocky shore and is also relatively small, possibly posing a problem to monitering. This may be one of the reasons why it may be difficult to monitor the seagrass in that area.

there was a lot of algae washed up and near the shore this time!

a shrimp we spotted! It was almost inconspicuous in the water.

blue sponges growing on the rocks

some thalassia near the shore had turned black for some reason!

we saw some bubble green seaweed (Boergesenia forbesii)

some green anemone(:

algae belonging to the Neomeris species

snails on the rocks!

low tide!

Since we have concluded our last visit we would like to thank Mr Lim for his unwavering support and guidance, the guy from NParks, who opens the gate for us without fail, and the Ms Toh who answers all our emails, our parents who pick us up, as well as everyone else who has made this monitoring project a success and a meaningful one. We hope to be able to work with seagrass again! 😀

Grace, Yifeng, Zenia(:

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Our first monitoring session!

30 06 2009

Finally we have officially started on field work at lab park on the 29th May! (finally got to put our booties to good use too!) We learnt how to estimate percentage coverage, algae cover, sediment and canopy height. Doing it for 33 quadrats was back-breaking work, but we can now say we are able to identify different seagrasses and algae with confidence, and faster too! The area was mostly populated with Thalassia hemprichii, but we did manage to identify Halophila ovalis, and a patch of Enhalus acoroides, which was much longer than we thought it would be. We also saw crabs, snails, shrimp burrows, blue sponges and many other interesting organisms!

Here are some pictures of the quadrats:

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we tried to identify the pictures by putting our fingers in, but it didn’t work out and we noted the picture number in the end.

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one of our quadrats

Hairy crab2!

A hairy crab that Mr Lim pointed out to us! We took turns holding it too.

blue sponge again

Blue sponges!

enhalus flower

The Enhalus flower!

As for our beach cleaning adventures, it was unsuccessful! Because, to our surprise, the beach was very clean. Mr Lim told us that it was because there were cleaners who did periodic cleaning at the beach. We will be going down for another session soon!

Grace, Zenia, Yifeng





Last Seagrass Monitoring!

13 02 2009

Hello all!

We went down on 10th February to do our last official monitoring session at Labrador Park! We took more photos this time for our Research Studies presentation in April 😀

Compared to our last few trips, however, we have very bad news! The seagrass meadow, especially the Thalassia Hemprichii that is closer to the shore were almost completely black and rough with white patches, we have no idea why that is the case. And so, we took a few leaves with us and we’ll be observing them next Tuesday during our RS block, so look out for results!

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We saw this green fish swimming around the meadow too! It was trying to burrow a hole and we could not take a picture of it because when it was really swift in its movements and sand was being kicked up as it was burrowing furiously! That made us very sad because we wanted to share our find with all of you!

Other finds include a snapping shrimp,

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barnacles which were interesting to us as usually we only see white or grey ones

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and a snail that came out of its shell to explore!

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There is also less algae this time round and we hope the seagrass will grow better because of that! In addition, we hope the seagrass will not die because of the shocking amount of epiphyte cover (:

This would be our last official post as a RS group, thank you to all those who have helped in one way or another! 😀 We might still update this blog during the time period from now till our juniors take over as we have decided to take it up as a Service Learning project as well, so hang on for more updates!

Cheryl Jiemin Joyce!





First seagrass monitoring of 2009

19 01 2009

Last Monday, 12 January, we went down to Labrador Park again as the tide was supposed to be low. However when we arrived, the tide was still quite high although we went there according to the time in the tide table. We then decided to wait as the tide was expected to recede. After about an hour, the tide was finally low enough for us to see the seagrass, and so we started our monitoring (:

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Like 3 days before when we went down, there were a lot of algae! Some were washed up onto the shore while a large amount of algae was left resting on the seagrass patch and covering the seagrass after the tide has receded. When we took one look across, algae seemed to be like all there was. However, when we moved the algae out of the way, we realized there were actually still much seagrass beneath them!

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In fact, the seagrass seemed to be exceptionally green as well! However, there was of course still some seagrass with epiphyte on them , just that seagrass without epiphyte on them really were green. The seagrass somehow seemed to be longer as well!

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We also saw many different kinds of algae. One of which was Neomeris

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Another was Sargassum

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There was also Gracilaria edulis

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We finished at around 7, and we managed to catch a glimpse of the beautiful sunset (: The sunrays against the blue sky are simply beautiful!

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Such is the beauty of nature, and of course, Labrador Park (:

Cheryl Jiemin Joyce 😀





Failed Seagrass Expedition! ):

18 01 2009

Hello all (: It’s been a long time since we went to our favourite park, Labrador Park!

This time, however, we did not manage to monitor seagrass due to the tide which was too high and also the water was rather muddy so we could not see anything. What we could see was lots and lots of green algae washed onto the shore and floating on the sea surface as well, making the beach looked terribly dirty D:

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There is also some construction nearby, hopefully they would not disturb the seagrasses and the sea’s ecosystem!

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Since we did not manage to monitor, we decided to make our time there worthwhile by exploring the shore and picking up rubbish on the way!

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There were a lot of rubbish, and common items include pieces of wires, glass shards, glass bottles and plastics.

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Some interesting sights include a snail inhabiting inside some junk.

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We hope that people will stop littering at the beaches because they are dangerous to both people and animals, please be considerate and throw the rubbish to the place where they belong, which means into the rubbish bin! Please be considerate:D

And that was the end of the failed expedition, but look out for the next post because we went back again two days after(:

Cheryl Jiemin Joyce! 😀

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161008 Seagrass Monitoring

21 10 2008

Hello, we’re back from those terrible exams to bring you updates on our project! We went to Labrador Park at 5.30pm on the 16th of October to monitor our seagrasses there again, along with Ms. Siti from National Parks! It was drizzling slightly so we wore bright red ponchos and used waterproof papers to do our task!

 

We were surprised to find more algae than usual in the seagrass patch. Ms. Siti explained that it was probably the blooming season for the algae and thus its abundance. They grew practically everywhere and hid the seagrasses D:

 

 

 

We are also now clearer about the difference between mud and fine sad, thanks to Ms. Siti! She pointed out that if the substrate is fine sand, we will still be able to feel the tiny grains when we rub our fingers together, but as for mud, it’s lumpy and we will not be able to feel the distinct grains. here are photos we took of various substrates!

 

 

Shell!

 

 

Fine sand!

 

 

 

Mud!

 

 

The colour is practically the same and may be deceiving but the feel of each substrate really is different!

 

We also noticed a couple having their wedding photos taken at Labrador Park! Must be because of the beautiful scenery there(:

 

 

 

Our team is also recently preparing for our booth at Clean and Green Week, otherwise known as Clean and Green Singapore 2008 (CGS 2008)! You can come down to visit the booths related to CGS to learn more on the environment how you can do your part! We’ll be over at the marina barrage from the 31st Oct (Friday) to 2nd Nov (Sunday)! Do come and support us! (:

 

Cheryl Joyce Jiemin





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 (: