{"refrec":{"BRefID":393509,"RR":"<b>Abdelhamid, S.; Reinicke, G.B.; Klaus, R.; Höhn, J.; Saad, O.S.; Grenzdörffer, G.</b> (2024). Red Sea coral reef monitoring site in Sudan after 39 years reveals stagnant reef growth, continuity and change. <i>Diversity 16(7)</i>: 379. <a href=\"https://dx.doi.org/10.3390/d16070379\" target=\"_blank\">https://dx.doi.org/10.3390/d16070379</a>","BEntID":391297,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Diversity 16(7)</i>: 379. <a href=\"https://dx.doi.org/10.3390/d16070379\" target=\"_blank\">https://dx.doi.org/10.3390/d16070379</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Abdelhamid, S.; Reinicke, G.B.; Klaus, R.; Höhn, J.; Saad, O.S.; Grenzdörffer, G.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Abdelhamid, S. <i>et al.</i>","Englishabstract":"Coral reefs off the coast of the Republic of Sudan are still considered to be among the most pristine reefs in the central Red Sea. The complex coastal fringing reefs, offshore banks, and shoals of Dungonab Bay in the north and Sanganeb atoll situated further to the south, about 23 km off the Sudanese mainland coast, were inscribed on the UNESCO World Heritage List in 2016. Due to their remote location and limited access, monitoring of the status of the reefs has been sporadic. Here, we present the results of a repeated large area photomosaic survey (5 m × 5 m plots) on the Sanganeb atoll, first established and surveyed in 1980, and revisited in 1991 and most recently in 2019. The 2019 survey recovered and reinstated the four original monitoring plots. Evaluation of photographic and video records from one photomosaic plot on the seaward slope of the atoll revealed general continuity of the overall community structure and composition over 39 years. Individual colonies of <i>Echinopora gemmacea</i> and <i>Lobophyllia erythraea</i> were recorded in the exact same positions as in the 1980 and 1991 plots. The genera <i>Acropora </i>and <i>Pocillopora </i>remain dominant, although in altered proportions. Shifts in composition were detected at the species level (e.g., increase in <i>Pocillopora verrucosa</i>, <i>Stylophora pistillata</i>, <i>Acropora hemprichii</i>, <i>Dipsastraea pallida</i>, and <i>Echinopora gemmacea</i>, decrease in <i>Acropora cytherea</i> and <i>A. superba</i>), in addition to changes in the extent of uncolonized substrate (e.g., increase from 43.9% in 1980 to 52.2% in 2019), and other scleractinian, hydrozoan, and soft coral living cover. While the temporal resolution only includes three sampling events over 39 years (1980, 1991, 2019), this study presents one of the longest time series of benthic community surveys available for the entire Red Sea. A semi-quantitative estimate of vertical reef growth in the studied test plot indicates a reduction in net accretion rates of more than 80%, from 2.27 to 2.72 cm/yr between 1980 and 1991 to 0.28–0.42 cm/yr between 1991 and 2019. We carefully conclude that the changes observed in the coral community in the plot in 2019 (<i>Acropora</i>–<i>Pocillopora </i>shift, increase in <i>Montipora </i>and calcareous algae) are representative of impacts at the community level, including rising sea surface temperatures and recent bleaching events.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Red Sea coral reef monitoring site in Sudan after 39 years reveals stagnant reef growth, continuity and change","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"coral community; long-term monitoring; net reef growth; Sanganeb atoll; <i>Acropora</i>; <i>Pocillopora</i>","OtherDescriptors":null,"Notes":null,"AnaPub":2024,"MonPub":null,"DateUpdate":"2024-07-22","DateCreate":"2024-07-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0,"DOI":"10.3390/d16070379"},"refs":null,"anarec":{"AnaID":393509,"PubliDate":2024,"Pagination":"379","XtraPublOfAnaID":null,"ISBN":null,"Volume":"16","Issue":"7","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":239468,"SerRR":"Diversity. 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