Sessile Organisms
Online ISSN : 1883-4701
Print ISSN : 1342-4181
ISSN-L : 1342-4181
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Volume 14, Issue 2
Displaying 1-5 of 5 articles from this issue
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  • Larval Development of Octomeris brunnea DARWIN (Cirripedia, Chthamalidae, Euraphiinae) Reared in the Laboratory
    Mal-Hee KIM, Toshiyuki YAMAGUCHI
    1998 Volume 14 Issue 2 Pages 1-17
    Published: February 15, 1998
    Released on J-STAGE: October 09, 2009
    DOIhttps://doi.org/10.4282/sosj.14.2_1
    JOURNAL FREE ACCESS
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    The larval development of Octomeris brunnea DARWIN is described based on larvae reared in the laboratory at a temperature of 28°C on a diet of the dinoflagellate Prorocentrum micans. It includes six naupliar and one cypris stages. Morphological characteristics such as the cephalic shield, thoraco-abdominal process, labrum, and appendages are described and illustrated. The oval cephalic shield, dark-brown pigmentation and setation in the antenna of the nauplii, and the honey-comb sculpture and dark-brown pigmentation of the cyprid easily distinguish O. brunnea from Octomeris sulcata and other Euraphiinae. The naupliar sizes of the species of three Octomeris, O. brunnea, O. sulcata, and O. angulosa, are compared and the morphological differences between the larvae of O. brunnea and other chthamalid barnacles are used to investigate their phylogenetic relationships.
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  • Interrelation between Marine Attaching Organisms and Corrosion Rate of Mild Steel Plate
    Hidetosi WUSUI, Nobuhito NAKATANI, Tadahiko OHBA, Morihiko KUWA
    1998 Volume 14 Issue 2 Pages 19-24
    Published: February 15, 1998
    Released on J-STAGE: October 09, 2009
    DOIhttps://doi.org/10.4282/sosj.14.2_19
    JOURNAL FREE ACCESS
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    The investigation of interrelation between attaching organisms and corrosion rate on the mild steel test plate was conducted. The test plates were exposed for 215 days at 1 to 20m depth in Suruga Bay, Sizuoka, Japan. The corrosion rates were revealed to decrease with increasing of attaching organisms and to increase with reducing of them. The green mussles Perna viridis were simultaneously obverved in scattered among on the shell surface of barnacles which already settled and covered over the steel test plates at 1 to 5m depth. The time of attaching of these green mussels in Suruga Bay was estimated to be before the end of November based on the comparative observations on the wet weight and shell size of individuals collected at Tokyo Bay in the same year.
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  • Tubicolous amphipods as a Fouling Community
    Takehiko HIWATARI
    1998 Volume 14 Issue 2 Pages 25-32
    Published: February 15, 1998
    Released on J-STAGE: October 09, 2009
    DOIhttps://doi.org/10.4282/sosj.14.2_25
    JOURNAL FREE ACCESS
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  • Informations
    1998 Volume 14 Issue 2 Pages 33-35
    Published: February 15, 1998
    Released on J-STAGE: October 09, 2009
    DOIhttps://doi.org/10.4282/sosj.14.2_33
    JOURNAL FREE ACCESS
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  • List of Papers
    1998 Volume 14 Issue 2 Pages 37-42
    Published: February 15, 1998
    Released on J-STAGE: October 09, 2009
    DOIhttps://doi.org/10.4282/sosj.14.2_37
    JOURNAL FREE ACCESS
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