Iodine and fluorine concentrations in seaweeds of the Arabian Gulf identified by morphology and DNA barcodes

Hanan Al-Adilah, Akira F Peters, Dhia Al-Bader, Andrea Raab, Abdullah Abkar I Akhdhar, Joerg Feldmann, Frithjof Kuepper* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Even though seaweeds have been recognized as key players in the ocean-to-atmosphere transfer of iodine in other parts of the world, there is a complete lack of knowledge about iodine accumulation in seaweeds of the Arabian Gulf. Similarly, very little is known about fluorine in seaweeds, anywhere in the world. Given that the Arabian Gulf is of particular interest due to being an extreme environment, featuring some of the highest temperatures and salinities observed in any marine water body worldwide, this study endeavoured to conduct a preliminary survey of iodine and fluorine levels in 11 of the most common seaweed species in the region, supported by morphological and molecular (DNA barcode)-based identification. Iodine was determined by inductively-coupled plasma-mass spectrometry, while ion chromatography was employed for analysis of fluoride. Species surveyed included Iyengaria stellata, Padina boergesenii, Chondria dasyphylla, Dictyota linearis, Colpomenia sinuosa, Feldmannia sp, Codium papillatum, Sargassum ilicifolium, S. ilicifolium var. acaraeocarpum, S. asperifolium and S. aquifolium. The findings of Sargassum ilicifolium and S. ilicifolium var. acaraeocarpum reported here are new records both for Kuwait and the Arabian Gulf.
Original languageEnglish
Pages (from-to)509-519
Number of pages11
JournalBotanica Marina
Volume63
Issue number6
DOIs
Publication statusPublished - 13 Nov 2020

Keywords

  • IC
  • ICP-MS
  • iodine
  • Kuwait

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