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  • 1
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    The Lateral Flow of Soil Caused by Banking on Soft Clay Ground (1988)
    Elsevier
    Details
    Publication Date: 1988-12-01
    Print ISSN: 0038-0806
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by Elsevier
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  • 2
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    Application of Forchheimer’s Formula to Dewatered Excavation as a Large Circular Well (1992)
    Elsevier
    Details
    Publication Date: 1992-03-01
    Print ISSN: 0038-0806
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by Elsevier
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  • 3
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    A Proposition of Numerical Analytical Method for Determination of Free Surfaces in an Earth Dam with Partially Penetrating Cutoff Wall (1991)
    Elsevier
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    Publication Date: 1991-12-01
    Print ISSN: 0038-0806
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Published by Elsevier
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  • 4
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    A rational survey method for evaluation of trawl fishing ground (2021)
    Japan International Cooperation Agency | Tokyo, Japan
    In:  http://aquaticcommons.org/id/eprint/26169 | 17342 | 2019-01-24 08:00:43 | 26169 | Japan International Cooperation Agency
    Details
    Publication Date: 2021-07-24
    Description: The paper presents a method by which the optimum number of hauls for an area can be estimated when the desired precision for estimating fish abundance is given. This method is applied to an area along the east coast Gulf of Thailand. The area was divided into three subareas according to the various features of fishing conditions. Subarea-I contains 13 blocks and is located in the southernmost part of the area; subarea-II comprises 17 blocks in the northernmost part and extends eastwards in the form of a rectangle. The remaining 31 blocks are contained in the subarea-III which occupy the intermediate and off-shore regions of the two subareas. The superiority of trawl fishing ground is in the order of the subareas II, I and III. If an error of 20% can be tolerated for the estimate of fish abundance, sixty hauls are necessary for subareas I and III, while thirty hauls are sufficient for subarea-II.
    Keywords: Fisheries ; Stock assessment ; Trawling ; Fishing grounds ; Biological surveys ; Fishery surveys ; Abundance ; Population number ; Hydrographic surveying
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 44-45
    Format: 2
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  • 5
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    Fishing condition and its oceanographic interpretation in bottom long line fishing grounds (2021)
    Japan International Cooperation Agency | Tokyo, Japan
    In:  http://aquaticcommons.org/id/eprint/26181 | 17342 | 2019-01-28 06:55:01 | 26181 | Japan International Cooperation Agency
    Details
    Publication Date: 2021-07-24
    Description: During the experimental bottom long line fishing conducted in June and September, 1972, near the Gulf of Thailand and off Kuching, Sarawak respectively, simultaneous oceanographic surveys were also carried out. The analysis of the data suggested possible relation between oceanographic and fishing conditions. Throughout the two trips it was a common feature that good catches were often obtained near the boundary between the nearshore warm water and the deeper cold water. Through oceanographical consideration of the data obtained, the following conclusion was deduced. There is a possibility that good fishing grounds are located along the canyon off Kuching throughout all seasons. However, their locations may be altered with the change of oceanographic conditions. In the area off the Gulf of Thailand, good fishing grounds may be formed only in certain specific seasons.
    Keywords: Fisheries ; Oceanography ; Oceanographic surveys ; Fishery oceanography ; Bottom trawling ; Trawling ; Line fishing ; Demersal fisheries ; Pelagic fisheries ; Fishing grounds ; Marine fisheries ; Fishery surveys
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 100-103
    Format: 4
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  • 6
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    Behaviour of the warm-water mass along the east coast of the Malay Peninsula (2021)
    Japan International Cooperation Agency | Tokyo, Japan
    In:  http://aquaticcommons.org/id/eprint/26182 | 17342 | 2019-01-28 06:47:06 | 26182 | Japan International Cooperation Agency
    Details
    Publication Date: 2021-07-24
    Description: A preliminary study was made on oceanographic conditions in the South China Sea, using the data collected over two monsoon seasons. In the northeast monsoon and the subsequent stagnant season, a narrow belt-like water mass of high temperature and low salinity was observed along the east coast of the Malay Peninsula. While in the southwest monsoon season, the existence of this water mass was not clear. The presence of this narrow belt of water mass suggest the existence of a southward-flowing current which may play a role in transporting the water from the Gulf of Thailand to the coastal area of the Peninsula.
    Keywords: Fisheries ; Oceanographic surveys ; Marine geology ; Oceanography ; Air-water temperature difference ; Outflow waters ; Water masses ; Water currents ; Water temperature
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 103-106
    Format: 4
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  • 7
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    Fish school structure of red snappers and bigeye snappers in the South China Sea (2021)
    Japan International Cooperation Agency | Tokyo, Japan
    In:  http://aquaticcommons.org/id/eprint/26170 | 17342 | 2019-01-24 07:27:09 | 26170 | Japan International Cooperation Agency
    Details
    Publication Date: 2021-07-24
    Description: Towards the end of 1971, a systematic trawl survey was made in a narrow restricted area within the MFRD Reference Area. Throughout all the hauls red snappers and bigeye snappers were dominant in catch, as observed commonly in the South China Sea, and in most cases they were caught together in the South China Sea, and in most cases they were caught together in every haul. Moreover, it was often observed that when either of them showed an extremely high catch, the other was extremely low. The above seems to suggest that the center of a fish school may not coincide with that of another species, but the domain occupied by the former is partly overlapped with that of the latter inhabiting adjacently. Using a simple mathematical model, some characteristic values on an average dispersion pattern of the species of fish schools on whose circumferences 50 kg/hour could be expected are almost the same and are 5 to 6 nautical miles. The maximum catch of red snappers and bigeye snappers which could be expected at the centers of the respective fish schools are 210 and 270 kg/hour respectively.
    Keywords: Fisheries ; Trawling ; Marine fish ; Marine fisheries ; Commercial species ; Fishery surveys ; Behaviour ; Schooling behaviour ; Modelling ; Fish catch statistics ; Lutjanus ; Priacanthus
    Repository Name: AquaDocs
    Type: book_section
    Format: application/pdf
    Format: application/pdf
    Format: 46-49
    Format: 4
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