{"refrec":{"BRefID":322873,"RR":"<b>Lachs, L.; Johari, N.A.M.; Le, D.Q.; Safuan, C.D.M.; Duprey, N.N.; Tanaka, K.; Hong, T.C.; Ory, N.C.; Bachok, Z.; Baker, D.M.; Kochzius, M.; Shirai, K.</b> (2019). Effects of tourism-derived sewage on coral reefs: isotopic assessments identify effective bioindicators. <i>Mar. Pollut. Bull. 148</i>: 85-96. <a href=\"https://dx.doi.org/10.1016/j.marpolbul.2019.07.059\" target=\"_blank\">https://dx.doi.org/10.1016/j.marpolbul.2019.07.059</a>","BEntID":316344,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Pollut. Bull. 148</i>: 85-96. <a href=\"https://dx.doi.org/10.1016/j.marpolbul.2019.07.059\" target=\"_blank\">https://dx.doi.org/10.1016/j.marpolbul.2019.07.059</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Lachs, L.; Johari, N.A.M.; Le, D.Q.; Safuan, C.D.M.; Duprey, N.N.; Tanaka, K.; Hong, T.C.; Ory, N.C.; Bachok, Z.; Baker, D.M.; Kochzius, M.; Shirai, K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Lachs, L. <i>et al.</i>","Englishabstract":"Pulau Redang and Pulau Tioman have experienced huge tourism growth over the last two decades, but minimal sewage treatment may threaten the resilience of their coral reefs. This study uses stable isotope techniques to identify suitable bioindicators of sewage nutrients (δ<sup>15</sup>N) at these islands by measuring macroalgae (<em>Lobophora</em> spp.), gastropods (<em>Drupella</em> spp.), scleractinian coral (<em>Acropora</em> spp.), and leather coral (<em>Sinularia</em> spp.). At tourist hubs using seepage septic tank systems, enrichment of <em>Acropora</em> δ<sup>15</sup>N (Redang, +0.7‰) and <em>Sinularia</em> δ<sup>15</sup>N (Tioman, +0.4‰) compared to pristine background levels indicate enhanced sewage nutrient discharge. Carbon isotopes and survey data suggest that sedimentation did not confound these δ<sup>15</sup>N trends. Potential damaging effects of sewage discharge on the coral reef communities at both islands are highlighted by strong correlations between <em>Acropora</em> δ<sup>15</sup>N and regional variation in coral reef community structure, and exclusive occurrence of degraded reefs at regions of high sewage influence.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Effects of tourism-derived sewage on coral reefs: isotopic assessments identify effective bioindicators","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-22 01:32:09.746039","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Nitrogen stable isotopes; Nutrient enrichment; Sewage bioindicators;Tourism development; Community structure; Resilience","OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2020-04-14","DateCreate":"2020-04-07","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000498277600010","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.marpolbul.2019.07.059"},"refs":null,"anarec":{"AnaID":322873,"PubliDate":2019,"Pagination":"85-96","XtraPublOfAnaID":null,"ISBN":null,"Volume":"148","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43520,"SerRR":"Marine Pollution Bulletin. 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