Dr. Faridah Mohamad

dr. faridahLecturer in Invertebrate Biology

B.Sc., 1995, Universiti Malaya
M.Sc., 2002, Universiti Putra Malaysia
Ph.D, 2008, Glasgow University

Contact Details

Level 4, SMES Building
School of Marine and Environmental Sciences
Universiti Malaysia Terengganu
21030 Kuala Terengganu

Tel: +609 – 6683385
Fax: +609 – 6683193

Research Interest

Metal accumulation and retention in crustaceans

Crustaceans accumulate metals in their tissues and have been applied as biomonitors for metal pollution in a number of aquatic habitats. The concentration of metals in the tissues of crabs was was measured using a standard AAS and ICPMS protocols. Metals accumulation varies according to species, sex, organs, localities and also types of metals. For example, manganese was found to be higher in the exoskeleton (carapace, gills) followed by hepatopancreas. The lowest concentration was found in the muscle and gonads. From a series of different exposure to Mn in sea water for a given period of time, accumulated Mn in the hard tissue (carapace) was found to be retained within the tissue. We are now focusing our research on a few other edible crustaceans including shrimps, prawns and lobsters. We are also interested to examine metal accumulation in some mollusks available in the marketplace especially the bivalves like oysters, clams and mussels in the consumer safety perspective.

Metal removal from aqueous solution by crap carapace particles

The ability of dried and crushed crab carapace particles to remove metals (Mn, Pb, Cu, Cd) from aqueous solutions was studied using a packed bed up-flow biosorption column system. Breakthrough curves obtained from a column using the carapace from a crab species Liocarcinus depurator indicates great potential of the carapace particles as a biosorbent. For Mn, the adsorption capacity, KF for Mn was 22.82 mg.g-1. The following research will focus on utilizing these biosorbent in a larger scale and across wider range of metals.

Horseshoe crab of Malaysia

There are only four extant horseshoe crab species in the world today. , Malaysia is blessed with three species, Tachypleus tridentatus, T. gigas and Carcinoscorpius rotundicauda. Very little is known about the current status of the population of this ancient animal in Malaysia waters. Surveys are being undertaken to determine the locations around Peninsular Malaysia and Sabah where populations of horseshoe crab are found roaming. The spawning behaviour is also being observed and monitored.

Current Project(s)

Title : Base Line Study on the Population Size and Foraging Areas of the Horseshoe Crab of Sabah, Malaysia
Position: Co-researcher
Grant name & amount received: Government of Sabah: RM589,000.00
Project Period: 2013-2015

Special Interest Group (SIG)
Wetland Ecosystem Conservation (Cluster Marine Sciences & Oceanography)
Marine Biodiversity and Resources (Cluster Marine Biotechnology & Biomaterials)

Course Taught

Principles in Biology
Invertebrate Biology
Taxonomy and Systematic of Organisms
Research Methodology

Graduate Students

Name of student: Ahmad Fuad Miskon
Project title:
Year graduated: 2012

Name of student: Nurmaisarah Sarizan
Project title: Identification of atherosclerotic compounds from marine molluscs of Bidong Archipelago
Year graduated: 2013

Name of student: Nurul Hazirah Mat Lazim
Project title: Identification of bioactive compounds from Acanthanster planci and their anti-atherosclerotic activity
Year graduated: 2013

Name of student: Azwarfarid Manca
Project title: The population ecology of horseshoe crab Tachypleus tridentatus (Leach) in Sabah, Malaysia
Year graduated: 2013-2015

Name of student: Muhammad Fawwaz Afham
Project title: Nesting activities of two Malaysian horseshoe crabs, Tachypleus gigas (Muller) and T. tridentatus (Leach) in Malaysia
Year graduated: 2013-2015



Faridah, M., Ismail, N., Amirrudin, A.B. et al. (2014). The population size and movement of coastal horseshoe crab T. gigas (Muller) in the east coast of Peninsular Malaysia. Submitted as chapter in a book.


Fuad, M.M., Shazili, N.A.M. and Faridah, M. (2013). Trace metals and rare earth elements in rock oyster Saccostrea cucullata along the east coast of Peninsular Malaysia. Aquatic Ecosystem. 16(1):78-87.

Mohamad, F., Ismail, N, Ahmad, A. et al. (2013). Horseshoe crab T. gigas in the east coast of Peninsular Malaysia: Simple white button tagging and determination of population size. Abstract Book of CERF 2013, 155. San Diego, California.