Effect of nutrient concentration and salinity on diel vertical migration of Chattonella marina (Raphidophyceae)

Toshiya Katano, Makoto Yoshida, Souichi Yamaguchi, Kenji Yoshino, Takaharu Hamada, Masumi Koriyama, Yuichi Hayami

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Vertical migration plays an important role in the development of Chattonella populations in the natural environment; however, this behaviour has remained largely undescribed. In the present study, the diel vertical migration of Chattonella marina in the Ariake Sea was examined along with nutrient concentrations and salinity at four sampling sites during the bloom in the summers of 2008, 2009 and 2010. Cells of Chattonella were abundant at the surface (0 m depth) in the daytime in most cases. However, when surface salinity was 9, which is the lower limit for growth, the population accumulated at a depth of 2 m, where salinity was 15, suggesting that Chattonella moves to avoid water with low salinity. Chattonella cells actively migrated, even under nutrient-replete conditions (mean DIN concentration, 12.73 μM). The present study demonstrates that Chattonella cell migration is independent of nutrient availability. In addition, Chattonella cells stop upward migration when the surface salinity is low (< 15). These insights are important for making predictions of Chattonella population dynamics after heavy rains.

    Original languageEnglish
    Pages (from-to)1007-1018
    Number of pages12
    JournalMarine Biology Research
    Volume10
    Issue number10
    DOIs
    Publication statusPublished - Nov 2014

    Fingerprint

    vertical migration
    marina
    nutrient content
    salinity
    nutrient
    nutrient availability
    population dynamics
    algal bloom
    effect
    Chattonella
    Raphidophyceae
    cells
    cell movement
    sampling
    summer
    population growth
    prediction
    rain
    nutrients
    water

    All Science Journal Classification (ASJC) codes

    • Oceanography
    • Ecology, Evolution, Behavior and Systematics
    • Aquatic Science

    Cite this

    Effect of nutrient concentration and salinity on diel vertical migration of Chattonella marina (Raphidophyceae). / Katano, Toshiya; Yoshida, Makoto; Yamaguchi, Souichi; Yoshino, Kenji; Hamada, Takaharu; Koriyama, Masumi; Hayami, Yuichi.

    In: Marine Biology Research, Vol. 10, No. 10, 11.2014, p. 1007-1018.

    Research output: Contribution to journalArticle

    Katano, Toshiya ; Yoshida, Makoto ; Yamaguchi, Souichi ; Yoshino, Kenji ; Hamada, Takaharu ; Koriyama, Masumi ; Hayami, Yuichi. / Effect of nutrient concentration and salinity on diel vertical migration of Chattonella marina (Raphidophyceae). In: Marine Biology Research. 2014 ; Vol. 10, No. 10. pp. 1007-1018.
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    AU - Hamada, Takaharu

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