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Article: Effects of tourism-derived sewage on coral reefs: isotopic assessments identify effective bioindicators

TitleEffects of tourism-derived sewage on coral reefs: isotopic assessments identify effective bioindicators
Authors
KeywordsCommunity structure
Nitrogen stable isotopes
Nutrient enrichmentResilienceSewage bioindicators
Resilience
Sewage bioindicators
Issue Date2019
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul
Citation
Marine Pollution Bulletin, 2019, v. 148, p. 85-96 How to Cite?
AbstractPulau 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 (δ15N) at these islands by measuring macroalgae (Lobophora spp.), gastropods (Drupella spp.), scleractinian coral (Acropora spp.), and leather coral (Sinularia spp.). At tourist hubs using seepage septic tank systems, enrichment of Acropora δ15N (Redang, +0.7‰) and Sinularia δ15N (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 δ15N trends. Potential damaging effects of sewage discharge on the coral reef communities at both islands are highlighted by strong correlations between Acropora δ15N and regional variation in coral reef community structure, and exclusive occurrence of degraded reefs at regions of high sewage influence. © 2019 Elsevier Ltd
Persistent Identifierhttp://hdl.handle.net/10722/275426
ISSN
2020 Impact Factor: 5.553
2020 SCImago Journal Rankings: 1.548
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLach, L-
dc.contributor.authorMohd Johari, NA-
dc.contributor.authorLe, DQ-
dc.contributor.authorMohd Safuan, CD-
dc.contributor.authorDuprey, NN-
dc.contributor.authorTanaka, K-
dc.contributor.authorHong, TC-
dc.contributor.authorOry, NC-
dc.contributor.authorBachok, Z-
dc.contributor.authorMochzius, M-
dc.contributor.authorBaker, DM-
dc.contributor.authorShirai, K-
dc.contributor.authorKochzius, M-
dc.date.accessioned2019-09-10T02:42:21Z-
dc.date.available2019-09-10T02:42:21Z-
dc.date.issued2019-
dc.identifier.citationMarine Pollution Bulletin, 2019, v. 148, p. 85-96-
dc.identifier.issn0025-326X-
dc.identifier.urihttp://hdl.handle.net/10722/275426-
dc.description.abstractPulau 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 (δ15N) at these islands by measuring macroalgae (Lobophora spp.), gastropods (Drupella spp.), scleractinian coral (Acropora spp.), and leather coral (Sinularia spp.). At tourist hubs using seepage septic tank systems, enrichment of Acropora δ15N (Redang, +0.7‰) and Sinularia δ15N (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 δ15N trends. Potential damaging effects of sewage discharge on the coral reef communities at both islands are highlighted by strong correlations between Acropora δ15N and regional variation in coral reef community structure, and exclusive occurrence of degraded reefs at regions of high sewage influence. © 2019 Elsevier Ltd-
dc.languageeng-
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/marpolbul-
dc.relation.ispartofMarine Pollution Bulletin-
dc.subjectCommunity structure-
dc.subjectNitrogen stable isotopes-
dc.subjectNutrient enrichmentResilienceSewage bioindicators-
dc.subjectResilience-
dc.subjectSewage bioindicators-
dc.titleEffects of tourism-derived sewage on coral reefs: isotopic assessments identify effective bioindicators-
dc.typeArticle-
dc.identifier.emailBaker, DM: dmbaker@hku.hk-
dc.identifier.authorityBaker, DM=rp01712-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.marpolbul.2019.07.059-
dc.identifier.pmid31422307-
dc.identifier.scopuseid_2-s2.0-85073706244-
dc.identifier.hkuros304604-
dc.identifier.volume148-
dc.identifier.spage85-
dc.identifier.epage96-
dc.identifier.isiWOS:000498277600010-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl0025-326X-

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