22 research outputs found
nano shinbun ナ ノ 新 聞
No full textContent: 1) From the Editorial Board; 2) Meet the new Pogonians; 3) POGO Visiting Fellowships for Shipboard Training; 4) NANO Global Projects update; 4.1) NANO-DOAP; 5) NANO Alumni in action:; 5.1) Sazlina Salleh; 6) When NANO ponders; 6.1) Abed Hassoun; 6.2) Pavanee Annasawmy; 6.3) Pavanee Annasawmy; 6.4) Piscila Lange; 7) In loving memory of Prof Trevor Platt; 8) Scientific event announcements.PublishedNon Referee
THE EFFECTS OF TEMPERATURE ON THE PHOTOSYNTHETIC PARAMETERS AND RECOVERY OF TWO TEMPERATE BENTHIC MICROALGAE, AMPHORA CF. COFFEAEFORMIS AND COCCONEIS CF. SUBLITTORALIS (BACILLARIOPHYCEAE)1
No full textPhotosynthetic response and recovery of Antarctic marine benthic microalgae exposed to elevated irradiances and temperatures
No full textEffects of elevated temperatures on the photosynthetic rates and recovery from photoinhibition of the benthic microalgae of polar, temperate, and tropical ecosystems
No full textNo description availabl
A CHECKLIST OF FREE-LIVING MARINE NEMATODES AT DIFFERENT ECOSYSTEM IN NORTHERN STRAITS OF MALACCA, MALAYSIA
No full textNematodes present in all substrates and sediment types with an enormous number of species. The studies on free-living marine nematodes are still limited in Malaysia. The present study provides general information on genus checklist of free-living marine nematodes in the northern part of Peninsular Malaysia in a different ecosystem which are intertidal zones of estuarine, sandy beach and mangrove ecosystems. Samples were randomly collected at three stations in each ecosystem. A total of 34 genera (22 families and ten suborders) were recorded in three ecosystems. Each ecosystem had common genera which also commonly found worldwide. Viscosia genus was observed in all three ecosystems. The nematode genera of Estuary and mangrove ecosystems had greater similarities than those in the sandy beach
Nusantarazation Environmental Paradigm: Sustaining Biodiversity and Culture in Nusantara Malay Archipelago with Local Ecological Knowledge (LEK)
No full textSince Nusantara Malay Archipelago is a maritime community, its indigenous knowledge and local wisdom is largely connected to sea life and water. Nevertheless, there are also mountains, valleys, forests and flatlands; hence, local knowledge is also connected to these landscapes and spaces. This article submits the environmental paradigm of Nusantarazation and its interconnectedness with local ecological knowledge (LEK) as well as reports on findings in the form of case exemplars in the field related to these constructs. The authors argue that Nusantarazation is an epistemological paradigm which is able to decolonize environment knowledge and provide an integrative framework for LEK, sustainable practices and technological know-how. The spatial scope covers mainly areas in Malaysia and Indonesia as these are part of Nusantara. Among the key findings are that LEK tend to be accompanied with seemingly unscientific or mythical narratives but are translated into practices that promote sustainability either in the land or waters. This article also capture various local constructs and beliefs that capture the underlying value systems which are integral to conservation and ecological balance. Nevertheless, the Nusantarazation environmental paradigm encounters challenges from colonial legacies of power modern practices and industrial complex that threaten to harm the environment and humanity
Antimicrobial Activity of Tropical Soft Corals Found in the Northern Straits of Malacca
No full textThe study was conducted to obtain and test crude extracts from soft corals found at Pulau Payar, an island
off the northern Straits of Malacca. Specimens were extracted in an equal volume of methanol and
dichloromethane. The samples were then concentrated to obtain crude extracts. Anti-bacterial activities of
the crude extracts were tested by disc diffusion method, minimum inhibition concentration (MIC) and
minimum bacterial activities (MBC) assays. Out of twelve crude extracts tested, 50 percent of them showed
inhibition for Staphylococcus aureus and MRSA; and approximately 8 percent have showed inhibition for
Enterococcus raffinosus. The MIC of each extract is stated in the tables below. Only one of them showed
bactericidal properties against MRSA. Soft corals around the world, have been found to contain beneficial
chemical compounds, however not much research has been done in the region. This shows that soft coral
extracts found in the Northern Straits of Malacca do have antibacterial potential, and this potential can be
harnessed for future pharmaceutical exploration
Gut content of mangrove gastropod, Cerithidea obtusa (Lamarck, 1822) from Kuala Selangor Nature Park, Selangor and Tanjung Piai National Park, Johor, Peninsular Malaysia
No full textCommercially valuable gastropod Cerithidea obtusa is abundant in the Malaysian mangrove ecosystems, yet little research has been done on this species. The present study was conducted to examine the diet of C. obtusa from two sites, Kuala Selangor Nature Park, Selangor and Tanjung Piai National Park, Johor, Malacca Strait. A total of 90 individuals were randomly collected from both sites by hand and fixed in 10% buffered formalin. Data from the sample analysis revealed that the percentage frequency of occurrence (Fpi) of food items found in both sites representing six major groups, dominated by vegetal detritus (100%), leaf matter (84.34%), diatoms (71.08%), dinoflagellate (44.58%), porifera (38.55%) and foraminifera (19.28%). A total of 16 diatom genera were recorded from the gut content analysis. Percentage frequency of occurrence of diatoms (Fpi) indicated that three genera were frequently found in the guts from Kuala Selangor; Cyclotella (73.33%), Navicula (70%) and Coscinodiscus (40%) and in the guts from Tanjung Piai; Cyclotella (56.6%), Navicula (32.08%) and Coscinodiscus (26.42%). In addition, the diet of C. obtusa showed that this species is a non-selective bottom grazer and the composition might vary due to the different localities and environmental factors such as tidal level. Further study can be carried out to allocate the relationship between their feeding mechanism and food preferences for a better understanding of their ecological roles in the mangrove ecosystems
An approach in assessing nutrient limitations in polar, tropical and temperate microalgae: nutrient-induced fluorescence transients (NIFTs)
No full textPRELIMINARY OBSERVATION OF TROPICAL DIATOM Thalassiosira spp. FROM TELUK BAHANG, PENANG
No full textThis study describes the morphological structure of Thalassiosira spp. found in coastal water and intertidal area of Teluk Bahang, Penang. Examination of the samples collected from January 2015 to June 2016 showed that these species were the common genera in both benthic and surface seawater at Teluk Bahang. To obtain phytoplankton samples, five liters of seawater were filtered through the plankton net (35 µm). While for benthic samples, the samples were collected at sediment surface of 1 mm depth. Samples of Thalassiosira spp. were obtained from both phytoplankton and benthic samples. Scanning electron microscope (SEM) was used to study the morphology of Thalassiosira spp. Results from the SEM showed distinct differences in areolae pattern, sizes, position and number of processes among Thalassiosira spp. (Thalassiosira nanolineata, Thalassiosira densannula, and Thalassiosira gravida). Thalassiosira densannula and Thalassiosira nanolineata were found in both habitats, coastal and benthic area while Thalassiosira gravida was found only in coastal water. Thalassiosira spp. contribute approximately 15% of the total benthic community and approximately 35% of the total phytoplankton community
