Today I joined a small NParks team to find out if there are any seagrasses growing near Bedok Jetty.
Annabelle, Wilson and friends from NParks National Biodiversity Centre are checking to see if there are seagrasses near the Jetty. They start first by using the intriguing sediment grab. A simple but effective little metal box with spring-loaded jaws. After gently lowering the box until it hits the bottom, the jaws are sprung and we haul it up to see what it had chomped. We got rocky bits, shelly sediments and several loads of silty sand.
Asparagus sea fan that we usually see on Beting Bronok.
Gnarled sea fans which we also see on the intertidal at Changi and Chek Jawa.
skinny sea fans on our low tide trips there, such as the one in Jun 2009.
As expected, one of the grabs was full of abandoned fishing line which was encrusted with delicate marine life. Like these bryozoans. This crunchy ruffle is a colony of tiny polyps, I could barely take photos of their super tiny tentacles emerging from the holes in the hard lacy structure that they create.
Fluffy hydroids and tiny snails too. I'm really looking forward to the upcoming Workshop on Bryozoans and Hydroids to learn more about them!
shore survey in Aug 2009, I saw bits and pieces of intriguing seagrasses! In one small area, I gathered bits of Tape seagrass (Enhalus acoroides), Needle seagrass (Halodule sp.), Sickle seagrass (Thalassia hemprichii), possibly Serrated ribbon seagrass (Cymodocea serrulata) and even Noodle seagrass (Syringodium isoetifolium)!
During another survey in Jun 2009, we saw a surprisingly large expanse of lush Needle seagrasses (Halodule sp.) in the East Coast Lagoon currently used for wake boarding. Many patches were seen near the edges where the water was low and clear. There were all kinds of fishes among the seagrasses too.
Washed up seagrasses on the high shore were also seen on a trip in May 2008. Including several large entangled clumps of Tape seagrass and some bits of Sickle seagrass. Perhaps there are seagrass meadows somewhere in deeper water along the East Coast but we just didn't come across them today.Bedok Jetty is a favourite for fishermen and there were quite a few of them out today.