09 March 2012

17 Mar (Sat): Horseshoe Crab Population and Distribution Survey

Our horseshoe crabs are threatened by abandoned drift nets, habitat loss and other human impacts.
Horseshoe crab entangled in abandoned driftnet
Horseshoe crab entangled in an abandoned net at Changi.
The Nature Society (Singapore) Horseshoe Crab Rescue team has been working on this issue for some time and is doing a survey on horseshoe crab populations. They are looking for volunteers for an island-wide survey next week.

From the Nature Society (Singapore) website:
This event is open to the public. The island-wide Horseshoe Crab (HSC) Population and Distribution Survey will start at 11am at various parts of Singapore. This is a follow-up to the last survey held in March 2009. It involves a search for the 2 species of HSCs found in Singapore and conducting a questionnaire survey of recreational and artisanal fishermen at designated potential HSC habitats. An exhaustive transect search will also be conducted at the Mandai mudflats to determine HSC population density. This survey will provide useful information on the population and distribution interval changes of both species of HSCs found in Singapore.

Please register your interest for the survey by clicking on the 'ATTEND' button on the Nature Society (Singapore) website and indicate your preferred survey area in Singapore (northeast, southeast, northwest or southwest) under 'Special Request'. 

Time: 11am-2pm
Website: http://www.nss.org.sg/
Contact: email contact@nss.org.sg or call 6741 2036.

More about our horseshoe crabs

Singapore has two species of horseshoe crabs. The Mangrove horseshoe crab (Carcinoscorpius rotundicauda) found mostly in our mangroves or nearby ecosystems and the Coastal horseshoe crab (Tachypleus gigas) found mostly on our other shore ecosystems. The Mangrove horseshoe crab is listed as 'Vulnerable' and the Coastal horseshoe crab as 'Endangered' in the Singapore Red Data Book.

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