|
|||||
|
|
Hydrolithon spp. (Rhodophyta, Corallinales) overgrow live corals (Cnidaria, Scleractinia) in Yemen |
|
| Authors: | Francesca Benzoni Daniela Basso Annalisa Caragnano Graziella Rodondi |
| Institution: | 1. Dipartimento di Biotecnologie e Bioscienze, Universit?? degli Studi di Milano-Bicocca, Piazza della Scienza, 3, 20126, Milan, Italy 2. Institut de Recherche pour le D??veloppement, UMR227 Coreus2, 101 Promenade Roger Laroque, BP A5, 98848, Noum??a Cedex, New Caledonia, France 3. Dipartimento di Scienze Geologiche e Geotecnologie, Universit?? degli Studi di Milano-Bicocca, Piazza della Scienza, 4, 20126, Milan, Italy 4. Dipartimento di Biologia, Sezione di Botanica Sistematica, Universit?? degli Studi di Milano, Via Celoria, 26, 20133, Milan, Italy |
| Abstract: | In Yemen, off the northwestern coast in the Gulf of Aden, the coralline algae Hydrolithon rupestre (Foslie) Penrose 1996 and H. murakoshii Iryu and Matsuda 1996 have been observed to overgrow and kill living Porites lutea Milne-Edwards and Haime, 1860. Similarly, Hydrolithon onkodes (Heydrich) Penrose and Woelkerling 1992 and H. rupestre were observed overgrowing Stylophora pistillata (Esper, 1797). Competitive interactions between P. lutea and H. murakoshii were monitored from 2006 to 2009 at two sites and showed an average linear growth of 8.3 (±1.9 SD) mm?year?1 over the coral. The small polyps of S. pistillata and P. lutea combined with putative chemical compounds produced by Hydrolithon spp. are likely to allow the coralline overgrowth. Although corallines can locally kill coral tissues, the CCA/coral interactions do not seem to affect the overall live coral cover at the study sites. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |