fmicb-10-00306 February 19, 2019 Time: 17:5 # 1 ORIGINAL RESEARCH published: 21 February 2019 doi: 10.3389/fmicb.2019.00306 Resting Cyst Distribution and Molecular Identification of the Harmful Dinoflagellate Margalefidinium polykrikoides (Gymnodiniales, Dinophyceae) in Lampung Bay, Sumatra, Indonesia Edited by: Ramiro Logares, Hikmah Thoha1, Muawanah2, Mariana D. Bayu Intan1, Arief Rachman1, Institute of Marine Sciences (ICM), Oksto Ridho Sianturi1, Tumpak Sidabutar1, Mitsunori Iwataki3, Kazuya Takahashi3, Spain Jean-Christophe Avarre4*† and Estelle Masseret1,5† Reviewed by: 1 2 Nataliia Annenkova, Research Center for Oceanography, Indonesian Institute of Sciences, Jakarta, Indonesia, Main Center for Marine 3 Limnological Institute (RAS), Russia Aquaculture of Lampung, Directorate General of Aquaculture, Lampung, Indonesia, Asian Natural Environmental Science 4 Albert Reñé, Center, The University of Tokyo, Tokyo, Japan, ISEM, IRD, CNRS, EPHE, University of Montpellier, Montpellier, France, 5 Institute of Marine Sciences (ICM), MARBEC, University of Montpellier, IRD, Ifremer, CNRS, Montpellier, France Spain Isabel Bravo, Margalefidinium polykrikoides, an unarmored dinoflagellate, was suspected to be the Instituto Español de Oceanografía (IEO), Spain causative agent of the harmful algal blooms – associated with massive fish mortalities – *Correspondence: that have occurred continually in Lampung Bay, Indonesia, since the first bloom Jean-Christophe Avarre event in October 2012. In this study, after examination of the morphology of putative
[email protected] M. polykrikoides-like cysts sampled in bottom sediments, cyst bed distribution of this †These authors have contributed equally to this work harmful species was explored in the inner bay. Sediment samples showed that resting cysts, including several morphotypes previously reported as M. polykrikoides, were most Specialty section: abundant on the northern coast of Lampung Bay, ranging from 20.6 to 645.6 cysts g−1 This article was submitted to Aquatic Microbiology, dry sediment.