Seagrass Succession

26 06 2008

Hello! We are another group of students that have just joined team seagrass this year. Our experiment will be targeting the growth rate of the sea grass Thalassia hemprichii (Th) and we will conduct this experiment via the succession of the sea grasses. Since no one has done this experiment before, we have no idea what to expect but hopefully, everything will go well and we will have a fulfilling learning experience in the process.

Although our scope of study is only being narrowed down to Thalassia, it will be inevitable that we would be learning about many other marine creatures and organisms. We are rather excited because this would not only be a research study project for us but also a chance for us to learn about our environment.

Our main objective is to find the rate at which the sea grass will re-grow out of the patch of sea grass that we will be clearing. Also, we will be comparing the growth rate of Thalassia with the other species of sea grass such as Halophhila Ovalis (HO) and Enhalus Acorides (EA).

We’ve already went down to Labrador Park twice and it’s really an eye opener for us as we saw many amazing wildlife creatures and of course the different type of sea grasses. We’ll be going down on 7th July (Youth Day) again, to start our data collection! We’re really glad that we took this RS project as we learnt a whole lot about the world around us, we realized that there were so many things that we missed out about the beauty of the nature world in the past.

Danielle, Jolyn and Xinyi

 





090608 at Labrador Park!

14 06 2008

 

We went to Labrador Park today (9th June) to try our hands on the field study. Although it is the second time coming down to Labrador Park, it is the first time we are seeing the seagrass population thanks to the low tide (0.2m). It seemed to be a completely different place compared to the last time we visited Labrador Park and it was amazing how seagrass is usually hidden during high tide!

 

Seagrass at low tide!

 

We got to know how the three seagrass species (halophilla, thalassia, enhalus!)  look like, how to identify each one of them and how to distinguish them from algae.

 

Enhalus

 

Then, we also learnt about zonation and factors that affect the distribution of seagrass, such as the height of seagrass. Mr. Lim showed us the spot which our seniors dug up the seagrass before a few months ago, and it seems that the seagrass has grown back there again!

 

 

 

We didn’t spend much time there, about an hour plus, but we learnt how we were going to conduct our field study – the use of the quadrat, how to take proper photos of our quadrat and how to record our observations.

 

 

We also managed to catch sight of a flowering (enhalus acoroides).

 

It was interesting feeling sea anemones and watching the barnacles close up their holes upon each touch.  We also saw different types of algae such as red algae, mermaid’s fan, crustose algae. Aside from that, we saw hairy crabs, snails and a tiny puffer fish:D The puffer fish was really skinny and was nothing like what we thought a puffer fish looks like- fat and round with spikes. Well, Mr. Lim said it was a baby puffer fish; hopefully it will grow up to be something magnificent!

 

 

There were also a lot of holes that belong to the snapping shrimps! Mr. Lim said they are really powerful creatures which create sonic booms to stun preys! While feeling the seagrass, Jiemin saw some white flat worm-like creature with many legs swimming out of the hole, but she couldn’t take a picture because the shrimp inside the hole dragged it inside in an instance.

 

Well, with that being our first trip down, we are now really excited for future trips to the park!

 

 

Cheryl Jiemin Joyce (: