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Goh, Beverly P. L. (Beverly Pi Lee)
- PublicationOpen AccessSustaining excellence in biology competitions: Observations from SIBiol’s International Biology Olympiad Experience in the last five years, an SG50 commentary(The Singapore Institute of Biology, 2015)
; 820 597 - PublicationOpen AccessEngaging secondary school students in authentic research projects based on environmental science theme(National Institute of Education (Singapore), 2017)
; 180 234 - PublicationOpen AccessMortality and settlement success of Pocillopora damicornis planula larvae during recovery from low levels of nickelEffects on mortality and settlement of Pocillopora damicornis planula larvae during recovery from low levels of Ni++ were investigated. Results indicated that a nickel concentration of 9 ppm over 12 hr was sufficient to cause 50% mortality in larvae 39.6 hr after removal of the toxicant. Settlement in larvae was more sensitive, showing significantly reduced settlement rates from 9 days into recovery, after exposure to I ppm Ni++ at durations of 12-96 hr. It is recommended that coral planula larvae be utilized more extensively in pollution studies.
391 401 - PublicationOpen AccessProject-based learning: Engaging secondary school students in authentic environmental science research(The Singapore Institute of Biology, 2015)
; ; Yap, Nicholas Wei LiangIn the past year (July 2014 to March 2015), 90 secondary school students participated in an Environmental Science themed Project-Based Learning (PBL) program designed by scientists at the National Institute of Education, Singapore. The authenticity of the PBL program was enhanced by partnership with NParks' Coastal Biomonitoring program. A total of 22 school teachers were also involved as facilitators of their students' project work. The strategic partnership of NIE scientists, secondary schools and NParks created a unique experience for students engaging in PBL.521 455 - PublicationOpen AccessEstablishing the thermal threshold of the tropical mussel Perna viridis in the face of global warmingWith increasing recognition that maximum oxygen demand is the unifying limit in tolerance, the first line of thermal sensitivity is, as a corollary, due to capacity limitations at a high level of organisational complexity before individual, molecular or membrane functions become disturbed. In this study the tropical mussel Perna viridis were subjected to temperature change of 0.4ËšC per hour from ambient to 8~36ËšC. By comparing thermal mortality against biochemical indices (hsp70, gluthathione), physiological indices (glycogen, FRAP, NRRT) and behavioural indices (clearance rate), a hierarchy of thermal tolerance was therein elucidated, ranging from systemic to cellular to molecular levels. Generally, while biochemical indices indicated a stress signal much earlier than the more integrated behavioural indices, failure of the latter (indicating a tolerance limit and transition to pejus state) occurred much earlier than the other indices tending towards thermal extremities at both ends of the thermal spectrum.
WOS© Citations 16Scopus© Citations 17 114 387 - PublicationOpen AccessThe effect of benthic macroalgae on coral settlement(National University of Singapore, 2012)
193 704 - PublicationOpen AccessA baseline comparative ecotoxicological study of abundance, physiological, cellular and biochemical responses of Archaster typicus found on St John’s Island and Pulau Hantu(The Singapore Institute of Biology, 2023)
147 237 - PublicationOpen AccessDistribution and abundance of sea urchins in Singapore reefs and their potential ecological impacts on macroalgae and coral communitiesThe sea urchin Diadema setosum is often encountered in the coral reefs in the Southern Islands of Singapore. While sea urchins have been known to play a role in regulating algal communities and influencing coral recruitment in other parts of the world, their role in Singapore reefs has not been determined. This study was conducted to determine the distribution and abundance of sea urchins in Singapore reefs, to examine algal cover, algal biomass, algal species and live coral cover, and to determine any interactions between urchin density and algal communities that may impact coral cover. Several reefs in Singapore were surveyed using belt transects measuring 20m by 2m, laid down on the reef crest. Abundance of urchins, algal species, biomass, and live coral cover were determined by the use of quadrats within each belt transect. This study revealed an increasing abundance of the sea urchin Diadema setosum in reefs progressing southwards away from mainland Singapore with low density of urchins occurring in Sisters’ Island, St John’s Island, Pulau Tekukor, and Kusu Island, and the highest density observed at Raffles Lighthouse. A significant negative linear relationship between algal cover and live coral cover (P < 0.05) was established. The results of this study indicate that sea urchins may not be an important component of the herbivore guild in Singapore.
WOS© Citations 2Scopus© Citations 5 230 758 - PublicationMetadata onlyDistribution and abundance of echinoderm communities in the intertidal shores of Singapore
Echinoderms are an important phylum in the ecology of marine ecosystems and also hold great scientific interest and, for some, commercial significance and potential. However, few studies have investigated echinoderm community assemblages in Singapore. This study aimed to examine the community structure of intertidal echinoderms on the shores of Singapore, namely, Coney Island, Chek Jawa, Pasir Ris Park Beach, Changi Beach, Tanah Merah Beach, East Coast Park Beach, Lazarus Island, St. John’s Island, Small Sister’s Island, Pulau Hantu, Tanjong Rimau, and Berlayer Creek. At each survey site, three replicate belt transects measuring 10 m × 5 m were established. Echinoderms encountered within the transects were identified and enumerated. From this study, 29 taxonomic groups of echinoderms were encountered, representing all five classes of echinoderms. Multivariate analyses (that excluded Ophiuroidea and Crinoidea) showed community clusters distributed in five geographical regions, namely, Northern Islands, Northeast, Southeast, South and Southern Islands. Analysis of Similarity indicated that echinoderm communities in the Northeast locations were significantly dissimilar from the Southeast, South and Southern Island communities, respectively. Similarly, Northern Island and Southern Island communities were significantly dissimilar (P < 0.001). Analysis of environmental factors suggested that the echinoderm community clusters could be explained by the percentage of silt/clay in sediments. Similarity, percentage analyses indicated that the holothuroid taxa, Holothuria scabra, Cercodemas anceps, Colochirus quadrangularis, and Phyllophorus spiculata, and the echinoid, Arachnoides placenta, contributed to the clustering pattern of echinoderm communities along a North–South direction. The abundance and community data presented in this research could serve as a baseline for future studies on echinoderms in Singapore.
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