Now showing items 1-4 of 4

    • Article

      Adsorption and biomass concentration of thraustochytrid Schizochytrium aggregatum (Goldstein and Belsky) in Bunker C Oil 

      BGS Sarinas, LD Gellada, MLT Torrigue, DN Sibonga, ES Torrato, JG Malagad, JG Feril, LAJ Bondoc, JCA Roncal & JA Tornalejo - Journal of Environmental Science and Management, 2014 - School of Environmental Science and Management, University of the Philippines Los Baños
      Diverse array of microorganisms such as bacteria, fungi and protists are involved during oil spill. Each microorganism has its own specific function whether it has to degrade or adsorb hydrocarbons. One important microorganism is the Thraustochytrid that is a fungoid protist and are common in marine and estuarine habitats. Numerous studies existed on the biodegradation and adsorption of Thraustochytrids on various substances but not on Bunker C oil. Thus, this study aimed to determine the adsorption capacity and mean biomass of Thraustochytrids in Bunker C oil using different cell densities measured in grams. All of the three treatments or cell densities (1 x 105 cells ml-1, 1 x 106 cells ml-1 and 1 x 107 cells ml-1) were triplicated and average values were recorded. Oil dispersant was used as a control. It showed that Thraustochytrid with 1 x 107 cells ml-1 showed the highest adsorbed oil (.057 ḡ) among the three cell densities and showed significant difference at p = .01 but comparable to the control (.066 ḡ). In terms of biomass concentration, all cell densities showed no significant difference at p = .01. Thraustochytrid is a promising tool during oil spill because it has the capacity to adsorb oil.
    • Article

      Initial assessment of the bacterial population of Guimaras waters and soil after the Solar I oil spill 

      C Sombito, G Lio-Po, R Sadaba & R Torreta - Philippine Journal of Natural Sciences, 2009 - University of the Philippines Visayas
      A massive oil spill occurred near the shores of Guimaras Island, Philippines in 11 Aug 2006 caused by the Sunken MT Solar I vessel. The oil spill spread to neighboring towns of Guimaras damaging the marine coastal environment, consequently,causing health and economic problems, particularly, by affecting local fisheries, wildlife and tourism. Hence, this study was conducted to assess, quantify and isolate indigenous bacteria with potential petroleum hydrocarbon-degrading properties that could be used for bioremediation of oil spill contaminated areas in Guimaras and nearby provinces.
    • Flyer

      Oil spill 

      Southeast Asian Fisheries Development Center, Aquaculture Department - 2006 - Aquaculture Department, Southeast Asian Fisheries Development Center
      Text in Hiligaynon and in English.
    • Article

      Post-August 2006 oil spill populations of Penaeid shrimp in island and riverine mangroves in Guimaras, central Philippines 

      JH Primavera & JB Abroguena - Philippine Journal of Natural Sciences, 2009 - University of the Philippines Visayas
      To evaluate the impact on biota of the release of arrow up million liters of bunker oil off Guimaras Island, Central Philippines, the penaeid shrimp populations in a protected island mangrove (Tandog) and a riverine mangrove (Sibunag) were surveyed by pocket seine 2-3 months after the August 2006 spill; results are compared to 1993 baseline data. A total of 529 individuals belonging to three penaeid species were collected - Metapenaeus anchistus in Tandog, and Metapenaeus ensis and Penaeus merguiensis in Sibunag. Shrimp densities were significantly higher in Tandog Island in 2006 compared to 1993 but remained similar in the riverine mangrove. This suggests that protection may have a greater impact than the Oil Spill per se because Tandog is part of the protected Taklong National Marine Reserve. In contrast to abundance, shrimp sizes (carapace length) were significantly smaller in 2006 compared to 1993 for both sites.