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Algae > Volume 28(3); 2013 > Article
Algae 2013;28(3): 241-266. doi: https://doi.org/10.4490/algae.2013.28.3.241
Observations on some mangrove-associated algae from the western Pacific (Guam, Chuuk, Kosrae, and Pohnpei)
John A. West1,*, Mitsunobu Kamiya2, Susan Loiseaux de Goër3, Ulf Karsten4 and Giuseppe C. Zuccarello5

1School of Botany, University of Melbourne, Parkville, VIC 3010, Australia
2Department of Marine Bioscience, Faculty of Biotechnology, Fukui Prefectural University, 1-1 Gakuencho, Obama, Fukui 917-0003, Japan
311 Rue des Moguerou, 29680 Roscoff, France
4Institute of Biological Sciences, University of Rostock, Albert-Einstein-Strasse 3, D-18057 Rostock, Germany
5School of Biological Sciences, Victoria University of Wellington, P. O. Box 600, Wellington 6140, New Zealand
*Corresponding Author  Email: jwest@unimelb.edu.au
The mangrove algal flora of Guam and the Federated States of Micronesia has been poorly explored. We add to our knowledge of this region by observations of collections from these regions. This paper presents new and additional records of: Rhodophyta-Acrochaetium globosum, Colaconema sp., Caulacanthus indicus, Bostrychia moritziana / B. radicans, B. radicosa, B. simpliciuscula, B. kelanensis and B. tenella, Murrayella periclados, and Caloglossa ogasawaraensis; Chlorophyta-Boodleopsis carolinensis; and Phaeophyceae-Dictyota adnata, Dictyotopsis propagulifera, and Canistrocarpus cervicornis. Most specimens were cultured to investigate their reproductive biology and many specimens were further identified using molecular data. Low molecular weight carbohydrates (dulcitol, sorbitol, and digeneaside) were identified in samples of B. radicosa and B. simpliciuscula. We also present data on manganese-rich deposits found on B. simpliciuscula and B. tenella in culture, possibly formed by epiphytic bacteria.
Key words: Chlorophyta; Chuuk; Guam; Kosrae; low-molecular-weight-carbohydrates; manganese-deposits; molecular phylogeny; Phaeophyceae; Pohnpei; Rhodophyta

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