Bulletin of the Society of Sea Water Science, Japan
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
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Volume 46, Issue 6
Displaying 1-6 of 6 articles from this issue
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  • Review on Desalting Distillator
    Shigeki TOYAMA
    1992 Volume 46 Issue 6 Pages 359-369
    Published: 1992
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.46.359
    JOURNAL FREE ACCESS
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  • Analysis of Trace Components in Sea Water and Salts
    Yoshihiro WADA
    1992 Volume 46 Issue 6 Pages 370-384
    Published: 1992
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.46.370
    JOURNAL FREE ACCESS
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  • Boron Isotopic Compositions of Coastal Sea Waters
    Takao OI, Tomohiro YAMAZAKI, Tomoko OSSAKA, Joyo OSSAKA
    1992 Volume 46 Issue 6 Pages 385-390
    Published: 1992
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.46.385
    JOURNAL FREE ACCESS
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    Boron isotopic compositions of ten sea water samples were measured. Nine samples were surface sea waters collected close to the shores of the Boso and Izu Peninsulas, Japan. The tenth sea water (Ito Oki sea water) sample was collected off the shore of Ito, Izu, at the depth of about 120m around the hill formed by submarine volcanic eruptions in the summer of 1989. Except for the Ito Oki sea water, the waters examined had the boron isotopic ratios (11B/10B) of 4.20-4.22 (or δ11B values of +37.7-+43.4) which were in good agreement with the values previously reported for sea water. This strongly suggests that, as far as the boron isotopic composition is concerned, sea water is quite uniform worldwide, even in areas close to coasts. The Ito Oki sea water sample with a high temperature (75°C), a high boron content (7.97 mg/dm3) and a low boron isotopic ratio (4.112) indicates the existence of hydrothermal solution at the site of the eruptions in 1989 even one year after the eruptions.
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  • Flow Injection Analysis of Boron in Sea Water and Salt Samples by Using Azomethine H
    Hiroshi NISHIOKA, Norio SAI, Tetsu KUMAGAI, Tohru NAGAHIRO, Katsuya UE ...
    1992 Volume 46 Issue 6 Pages 391-396
    Published: 1992
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.46.391
    JOURNAL FREE ACCESS
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    A flow injection method for the determination of boron with azomethine H was studied, and the following results were obtained.
    1) The linearity of calibration curve was good, and the relative standard deviation in respective ten determinations of 10 mg/l of boron was less than 0.4%. The lower limit of determination and the limit of detection were 0.057 and 0.017 mg/l, respectively.
    2) A routine sampling rate of 30 determinations per hour can be achieved with the proposed method.
    3) This method can be successfully applied to the determination of boron in sea water, common salt and imported salt samples.
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  • Mangrove Plant, Bruguiera gymnorrhiza and Its Salt Environment for Growth
    Study on the Salt Tolerance Mechanism of Halophytes (2)
    Shigeru KATO
    1992 Volume 46 Issue 6 Pages 397-404
    Published: 1992
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.46.397
    JOURNAL FREE ACCESS
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    Mangrove plants are distributed along coastal areas and estuarine areas of the sub-tropical and tropical worlds which include Okinawa, Japan. These are called halophytes which possess peculiar physiological mechanisms for salt control. Characteristic distribution of mangrove plants is observed as conditioned by tidal regime and salinity.
    Bruguiera gymnorrhiza (Japanese name: Ohirugi) is one of the mangrove species and its distribution in a mangrove forest is confined to the areas that are not strongly affected by sea water. In this study, Bruguiera gymnorrhiza was compared under different NaCl conditions of culture solution. The inorganic ions (anions and cations) and organic acids in leaves, rhizophores and roots parts in each cultured sample were analyzed, respectively. Bruguiera gymnorrhiza grew very well under F-20 culture condition (0.6% NaCl) like a natural growth in the mangrove forest. Leaf size was large and leaf color also was a healthy green. On the contrary, at high salinity condition (F-100, 3% NaCl) the leaf of Bruguiera gymnorrhiza was small and thick. These thick leaves contained high amount of Na+ and Cl- ions. After culturing, ion components of culture solution were also analyzed. The data indicated that K+, PO43-, and NO3- ions in culture solution were decreased or disappeared by absorption for plant growth. These three elements are essential elements for plant growth. Na+, and Cl- ions were also absorbed and translocated to upper parts, then these ions were stored in the leaves. Furthermore, leaves gradually increase succulences and finally these leaves will fall down because of NaCl abandonment from plant body. Production of organic acids depends on salinity condition. All leaves, rhizophores and roots contained high amount of oxalic and malic acids. These dicarboxylic acids are important for osmotic regulation of halophytes.
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  • The Environmental Issue and the Recent Technology on Antifouling Coatings (Part 1)
    Iwao MOMIYAMA
    1992 Volume 46 Issue 6 Pages 405-410
    Published: 1992
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.46.405
    JOURNAL FREE ACCESS
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