title: Internal bioerosion in dead and live hard corals in intertidal zone of Hormuz Island (Persian Gulf).
abstract: Internal macrobioeroders and their erosion rate in three live and dead coral genera (Favia, Platygyra and Porites) from the intertidal zone of the Hormuz Island were studied by collecting five live and five dead colonies from each genus, from which 4 mm cross-sections were cut and photographed. Photos were analyzed using the Coral Point Count with Excel extensions. Totally, 9 taxa were identified: four bivalve species, one sponge, three polychaetes, and one barnacle. Bioerosion rate did not significantly differ among the three live corals, but among the dead ones only Porites was significantly more eroded than Favia. Sponge had the highest role in the erosion of the dead Platygyra, while barnacles were the most effective eroding organism in the live Platygyra. Polychaetes, followed by bivalves, were the most destructive bioeroders on the dead and live Porites. Further, none of the bioeroding organisms had selectively chosen either the dead or live Favia.
authors.affiliation: Department of Marine Biology, Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 64414-356, Noor, Mazandaran, Iran. Electronic address: Mohammadalijafari2020@gmail.com.
authors.forename: Mohammad Ali
authors.initials: MA
authors.lastname: Jafari
authors.affiliation: Department of Marine Biology, Faculty of Marine Sciences, Tarbiat Modares University, P.O. Box 64414-356, Noor, Mazandaran, Iran. Electronic address: seyfabadi@modares.ac.ir.
authors.forename: Jafar
authors.initials: J
authors.lastname: Seyfabadi
authors.affiliation: Department of Marine Biology, Faculty of Biological Sciences, Shahid Beheshti University, G. C., Evin, P.O. Box 1983963113, Tehran, Iran. Electronic address: M_Shokri@sbu.ac.ir.
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Shokri
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D037421:Anthozoa / Q000254:growth & development* / Q000502:physiology* / Q000648:ultrastructure; D002113:Calcification, Physiologic; D057231:Climate Change; D057894:Coral Reefs; D062305:Geographic Mapping; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D019156:Indian Ocean; D062312:Islands; D011161:Porifera / Q000254:growth & development; D025341:Principal Component Analysis; D012623:Seawater / Q000737:chemistry*; D013045:Species Specificity; D001468:Thoracica / Q000254:growth & development
keywords: Bioeroders; Bioerosion; Coral reefs; Hormuz Island