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Marine macroalgae of the Kermadec Islands

Wendy A. Nelson
National Institute of Water and Atmospheric Research
Jennifer L. Dalen
Museum of New Zealand Te Papa Tongarewa
16 October 2015


A list of the marine macroalgal flora of the Kermadec Islands has been compiled, based on specimens housed in the herbaria of the Museum of New Zealand Te Papa Tongarewa and Auckland Museum, with at least 154 taxa recorded (24 Chlorophyta (Prasinophyceae, Ulvophyceae), 32 Phaeophyceae, 98 Rhodophyta). More than half of the taxa reported here are known within the New Zealand region only from the Kermadec Islands (83 of 154 species). The macroalgal flora of the islands remains incompletely known and more than half of the taxa listed are known at the Kermadec Islands from only 1-3 specimens. Collections made in 1982 remain the most comprehensive sampling of the marine flora of the Kermadec Islands to date, both in terms of the number of sites and island groups visited, and in the thoroughness of the collecting effort. The collections made subsequently have been opportunistic, as an adjunct to other research or collecting activities, rather than being focused on detailed sampling of the macroalgal flora. This present list updates Nelson & Adams (1984) and includes new records for the islands (e.g., Caulerpa sertularioides, Chaetomorpha aerea, Hildenbrandia sp., Sporolithon durum, Ralfsia sp.), new records for New Zealand (e.g., Codium saccatum, Gelidium isabelae, Lithophyllum prototypum, Zonaria diesingiana), reports of new taxa published since 1984, as well as nomenclatural and taxonomic changes, and confirms previously unsubstantiated records of Dictyopteris kermadecensis and Rhizoclonium sp.

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Wendy A. Nelson and Jennifer L. Dalen. Marine macroalgae of the Kermadec Islands. Auckland War Memorial Museum - Tāmaki Paenga Hira. Bulletin of the Auckland Museum 20: 125:140.