Ascension Island shallow-water Zoantharia (Hexacorallia: Cnidaria) and their zooxanthellae (Symbiodinium)

作者：Reimer James Davis^*; Lorion Julien; Irei Yuka; Hoeksema Bert W; Wirtz Peter

来源：Journal of the Marine Biological Association of the United Kingdom, 2017, 97(4): 695-703.

DOI：10.1017/S0025315414000654

• Ascension Island
• Atlantic
• benthos
• isolation
• Palythoa
• Parazoanthus
• Symbiodinium
• Zoantharia
• zoogeography

This is the first report on the Zoantharia fauna (Cnidaria: Hexacorallia) of the isolated oceanic island of Ascension, southern Atlantic, where zoantharians are a dominant component of the shallow-water benthos. Specimens from two expeditions (1983, 2012) were examined regarding external morphology and molecular phylogeny using three DNA markers, which confirmed the presence of four zoantharian species: Palythoa caribaeorum; Palythoa aff. clavata; Parazoanthus swiftii; and Zoanthus sp. Two of these, Palythoa aff. clavata and Parazoanthus swiftii, were previously only known from the western Atlantic and Caribbean. Molecular examination of the zooxanthellae (=Symbiodinium spp.) of Palythoa specimens showed that they were in association with only one type, subclade C1.

• 出版日期2017-6