TeamSeagrass. We explored the shore as we waited for the tide to fall.
The pink-spotted Bead anemone (Anthopleura buddemeieri) is a rather quirky anemone that is found very high on a natural rocky shore. Unfortunately, in Singapore such habitats are rare, and thus the anemone is not often encountered. In fact, I only found one of these anemones on our trip today. The rocky shore is very much alive with other creatures, mainly molluscs and snails of all kinds! Marcus and Andy saw lots of other creatures too.
Sea slaters (Ligia sp.) on the shore. Although they are sometimes called Sea cockroaches, they are not true insects and are crustacea like crabs and shrimps! Among them are some true insects of the shore. These are Shore crickets (Family Gryllidae)! My first time paying attention to them on Labrador!
Coin seaweeds (Halimeda sp.) looks like a series of coins joined together. Each coin-like segment is hard as it is impregnated with calcium carbonate. The portions between the segments are not calcified, so the bunch of segments is rather flexible. The calcium carbonate released from dead Halimeda seaweeds are said to make major contributions to sand in some areas such as the Bahamas and the Great Barrier Reef!
Neomeris sp. The seaweed is actually made up of tiny branches packed tightly around a central stalk to form the cylindrical shape, somewhat like the bristles on a bottlebrush. The base to middle portion of the 'stem' is white and calcified while the upper ends are bright green, and often fuzzy at the tips. The green tiny branches at the tip are younger.
Pom pom red seaweed is a ball-shaped cluster of many thin, cylindrical 'stems' that are densely branched. The 'stems' are hard and thus the seaweed feels crunchy when stepped upon (try to NOT to step on them). Colours range from pinkish and lilac to deep magenta and purple. This one seems to have a pale rounded 'cap' at the tip of the 'stem'.
Project Driftnet effort.
a flood of brown water near the mainland on our way home from Cyrene yesterday.
reclamation, dredging and other coastal works for the new Pasir Panjang Container Terminal which includes underwater blasting. Monitoring the seagrasses at Labrador will help give an indication of the health of the shore.
Thanks to Marcus and Andy for coming today all prepared to monitor and hauling out the nets, and to Yuet Hsin and Ben for supporting our effort. I'm so sorry we couldn't get the primary job done. Hopefully the tides will be kinder to us in the future.
Others who posted about this trip
- Marcus Ng with more rocky shore sightings.