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  • Articles  (5)
  • Gulf of Thailand  (4)
  • 550 - Earth sciences
  • Chemical Engineering
  • Fisheries
  • Training Department, Southeast Asian Fisheries Development Center  (5)
  • 2020-2023  (5)
  • 1
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    Fisheries in Brunei Darussalam (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakarn, Thailand
    In:  http://aquaticcommons.org/id/eprint/26215 | 17342 | 2019-02-08 06:25:54 | 26215 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2022-08-02
    Description: Presented in this paper is the status of the fishery industry in Brunei Darussalam. Specifically, it discussed the following topics: fishery management strategies, zonation scheme, licencing, the use of poisons and explosives, the minimum cod-end mesh size for trawlers, closed areas, enhancement of fishing grounds, and the enforcement activities.
    Keywords: Fisheries ; Fishery resources ; Fishery management ; Fisheries ; Ecological zonation ; Licensing ; Fish poisoning ; Catching methods ; Illegal fishing ; Explosive fishing ; Fishing gear ; Season regulations ; Fishing grounds
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 34-40
    Format: 7
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  • 2
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    Physical characteristics of watermass in the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26320 | 23782 | 2019-03-27 07:10:12 | 26320 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2022-08-02
    Description: Our study provides new information on the physical characteristics of watermass in the South China Sea. We analyzed the temperature, salinity and density profiles to determine the effect of the NE monsoon on the variability of the physical properties of watermass, in the Gulf of Thailand and the east coast of Peninsular Malaysia. CTD data were obtained from both the M.V. SEAFDEC cruises conducted before (September 1995) and after (April 1996) the northeast (NE) monsoon season. We concluded that the NE monsoon caused the variability of the physical properties of watermasses, in the study area, slightly. We observed the movement of the thermocline, halocline and pycnocline layers from deeper depth to shallower depth, before and after the NE monsoon season, respectively. This movement indicates the possible occurrence of downwelling and upwelling processes in the region.
    Keywords: Oceanography ; Water masses ; CTD observations ; Physical oceanography ; Monsoons ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 1-5
    Format: 5
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  • 3
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    Sedimentological characteristics of the sediments of the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26323 | 23782 | 2019-03-28 08:22:52 | 26323 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2022-08-02
    Description: Two batches of eighty sediment samples were cut from the first centimeter of sediment cores collected during September 1995, representing the pre-monsoon period, and April 1996, representing the post-monsoon period, at the same location. The samples were collected within the waters of the Gulf of Thailand and the eastern board of Peninsular Malaysia. The sediment samples were analyzed for their sedimentological characteristics using the techniques of sieving and laser diffraction. In general the sediments of the Gulf of Thailand are finer, better sorted, more peaked than that of the Malaysian waters. Skewness of sediments from Thailand waters was more positively skewed than the Malaysian sediments for the pre-monsoon period but tended to be more negatively skewed for the post-monsoon period. It is also interesting to note that in general, the sediments collected during the post-monsoon period are finer, better sorted, more positively skewed and less peaked than the sediments collected during the pre-monsoon period. This is true for both the sediments collected from the Gulf of Thailand and the Malaysian waters. Near-shore sediments were also found to be the coarsest, followed by the off-shore sediments.
    Keywords: Oceanography ; Sediment sampling ; Sedimentology ; Sediment analysis ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 34-53
    Format: 20
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  • 4
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    Trace metals in the surface sediments of the South China Sea, Area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26325 | 23782 | 2019-03-28 08:20:36 | 26325 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2022-08-02
    Description: The trace metal distribution in the surface sediments of the Gulf of Thailand and the South China Sea were studied. Samples were obtained from two cruises of the MV SEAFDEC Total metal content were measured in the 63mm fraction of dried sediment. For the first cruise (Pre-Northeast monsoon) results, metal concentration ranges were between 0.41- 0.19mgg-1Cd, 10-36mgg-1Cu, 7.02-27.8mgg-1Pb, 15.3-352mgg-1Zn, 20.5-122mgg-1 Cr, 209-720mgg-1Mn, 0.79-5.96%Al and 0.71-2.82%Fe. Similar results were obtained for the second cruise (Post-Northeast monsoon) results, with metal concentrations in the range of 0.10-0.94 mgg-1Cd, 10.3-61.4 mgg-1Cu, 5.24-78.2 mgg-1Pb, 18.1-98 mgg-1Zn, 21.1-101 mgg-1Cr, 117-797 mgg-1Mn, 1.89-7.22 %Al and 0.70-2.38 %Fe. The concentrations of Al, Cr, Cu and Mn were significantly higher in the Gulf of Thailand in the pre-monsoon while concentrations of Fe, Cd and Zn were similar for both areas. For the postmonsoon Al, Cu and Mn concentrations were higher in Gulf sediments. Differences in metal concentrations were noted between the pre- and the post monsoon samples. Fe, Cr and Mn concentrations were generally higher in the pre-monsoon period for both areas but the distribution of Pb was higher in the post-monsoon while Zn and Cu distribution differed between the Gulf and the South China Sea areas. However normalisation of the metal data to aluminium content of the sediment showed generally uniform concentration of the metals studied over most of the area studied. Some enrichment by Cu in sediments from two sampling stations in the upper Gulf of Thailand is indicated by Cu:Al ratios exceeding normal crustal abundances of these metals. However low Cu:Al ratios in sediments from some areas of the South China Sea may indicate depletion of Cu in the sediments.
    Keywords: Oceanography ; Trace metals ; Sediment analysis ; Monsoons ; South China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 73-85
    Format: 13
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  • 5
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    Petroleum hydrocarbon in seawater and some sediments of the South China Sea, area I: Gulf of Thailand and east coast of Peninsular Malaysia (2021)
    Training Department, Southeast Asian Fisheries Development Center | Samut Prakan, Thailand
    In:  http://aquaticcommons.org/id/eprint/26328 | 23782 | 2019-03-28 08:52:39 | 26328 | Southeast Asian Fisheries Development Center, Training Department
    Details
    Publication Date: 2022-08-02
    Description: Petroleum hydrocarbon in water samples and sediments collected during the Pre-Southwest Monsoon Cruise in the Gulf of Thailand and Eastern Peninsular Malaysia in April-May 1996 point out that land-based and sea-based sources were both important. High concentration (〉 0.5 mg/l) found in coastal water of the northern part and western part near Songkhla-Pattani could be derived from land-based sources. Elevated concentration of petroleum hydrocarbons in seawater and residuals in sediments of the central area of the Gulf could be originated from offshore activities. However physical oceanography of the Gulf could also play very important roles in redistribution, dispersion and accumulation of petroleum hydrocarbon in the water.
    Keywords: Oceanography ; Pollution ; Pollution monitoring ; Marine pollution ; Sediment analysis ; Petroleum hydrocarbonsSouth China Sea ; Gulf of Thailand ; Malaysia
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 105-110
    Format: 6
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