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Koh Siang Tan
St. John’s Island National Marine Laboratory,Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, Singapore, 119227
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Mathematics

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Marine Biofouling Communities of Manila South Harbor, Philippines Hildie M.E. Nacorda; Nero M. Austero; Cesar R. Pagdilao; Koh Siang Tan; Rhodora V. Azanza
ASEAN Journal on Science and Technology for Development Vol. 35 No. 1-2 (2018): Extent of transfer of alien invasive organisms in South/Southeast Asia regio
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29037/ajstd.481

Abstract

An immersion experiment was conducted in the Manila South Harbor to document the development of sessile biofouling communities. Test panels were submerged below the sea surface in April 2012 for short- (one and three months) and long-term (one year) exposures in seawater, then foauling types and occurrences were scored based on digital images of panel surfaces. The short-term immersed panels were found with significant cover of soft fouling (undet.), slime, and the invasive Balanus (=Amphibalanus) amphitrite. These also filled the long-term immersed panels, although some fell off due to mortality from crude oil smothering. Perna viridis, native but also invasive, successfully established and then dominated the fouling cover by the 12th month (April 2013). Oysters, bryozoans (Watersipora sp.), colonial tunicates, polychaetes (Hydroides sp.), and green algae contributed minor to fouling cover. These fouling communities in the Manila South Harbor consisted of organisms that were cosmopolitan in port waters of SE Asia. A similar study must be carried out in other major ports of the country and then compared.
The invasive Caribbean Mytilopsis sallei (Bivalvia: Dreissenidae): A short review Koh Siang Tan; Teresa Tay
ASEAN Journal on Science and Technology for Development Vol. 35 No. 1-2 (2018): Extent of transfer of alien invasive organisms in South/Southeast Asia regio
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29037/ajstd.483

Abstract

The mussel-like bivalve species from the Caribbean, Mytilopsis sallei, is now well established in the vicinities of several ports in South and Southeast Asia. Although it may not be as notorious as its relative the zebra mussel Dreissena polymorpha, this brackish-water bivalve has the ability to colonise and displace native species in intertidal and subtidal habitats. It is also another testament to how well a tropical species can travel beyond its natural biogeographical boundaries. Here we briefly review its taxonomy, morphology, growth and reproduction, habitat and distribution, as well as its impact on natural habitats after invasion, based on published literature.
Co-Authors Cesar R. Pagdilao Hildie M.E. Nacorda Nero M. Austero Rhodora V. Azanza Teresa Tay