Inputs from microchemistry to the understanding of three Sicydiinae species' life cycle

Laura Taillebois, Helene Tabouret, C Pecheyran, P Keith

    Research output: Contribution to journalArticle

    Abstract

    Amphidromous fish species contribute most to the diversity offish communities in the tropical insular rivers. Hence, their biological life cycle remains poorly known. The otolith elemental composition of three Sicydiinae species Sicyopus zosterophorum, Smilosicyopus chloe, Akihito Vanuatu was investigated to describe their biological life cycle for the first time. The otolith analysis using a femtosecond laser ablation - inductively coupled plasma mass spectrometer (fs-LA-ICP-MS) revealed an amphidromous life history for the three species as it suggested a habitat shift from a marine habitat to a freshwater environment. Also, several types of elemental profiles were observed in the adult stage suggesting a diversity of behaviors and/or habitats. Water chemistry analyses would help understanding the origin of the ratios variations in the adult stage and would push forward our general understanding of Sicydiinae life cycle.
    Original languageEnglish
    Pages (from-to)73-84
    Number of pages12
    JournalVie et Milieu
    Volume65
    Issue number2
    Publication statusPublished - 2015

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