气候变化领域集成服务门户(CCPortal): Bivalve δ15N isoscapes provide a baseline for urban nitrogen footprint at the edge of a World Heritage coral reef

CCPortal

DOI	10.1016/j.marpolbul.2019.110870
	Bivalve δ15N isoscapes provide a baseline for urban nitrogen footprint at the edge of a World Heritage coral reef
	Thibault M.; Duprey N.; Gillikin D.P.; Thébault J.; Douillet P.; Chauvaud L.; Amice E.; Munaron J.M.; Lorrain A.
发表日期	2020
ISSN	0025326X
卷号	152
英文摘要	Eutrophication is a major threat to world's coral reefs. Here, we mapped the distribution of the anthropogenic nitrogen footprint around Nouméa, a coastal city surrounded by 15,743 km2 of UNESCO listed reefs. We measured the δ15N signature of 348 long-lived benthic bivalves from 12 species at 27 sites and interpolated these to generate a δ15N isoscape. We evaluated the influence of water residence times on nitrogen enrichment and predicted an eutrophication risk at the UNESCO core area. Nitrogen isoscapes revealed a strong spatial gradient (4.3 to 11.7‰) from the outer lagoon to three highly exposed bays of Nouméa. Several protected reefs would benefit from an improved management of wastewater outputs, while one bay in the UNESCO core area may suffer a high eutrophication risk in the future. Our study reinforces the usefulness of using benthic animals to characterize the anthropogenic N-footprint and provide a necessary baseline for both ecologists and policy makers. © 2020 Elsevier Ltd
英文关键词	Bivalve; Coral reefs; Eutrophication; Heritage sites; Isoscape; δ15N
语种	英语
scopus关键词	Molluscs; Nitrogen; Reefs; Residence time distribution; Bivalve; Coral reef; Heritage sites; Influence of water; Isoscape; Nitrogen enrichment; Nitrogen footprints; Spatial gradients; Eutrophication; nitrogen 15; nitrogen; anthropogenic source; benthos; bivalve; coral reef; enrichment; eutrophication; nitrogen isotope; spatial distribution; World Heritage Site; Article; benthos; bivalve; coastal waters; coral reef; environmental enrichment; environmental protection; eutrophication; lagoon; nonhuman; prediction; retention time; urban area; waste water management; animal; Anthozoa; bay; coral reef; eutrophication; New Caledonia [Melanesia]; New Caledonia [New Caledonia (DPN)]; Noumea; Anthozoa; Bivalvia; Animals; Anthozoa; Bays; Bivalvia; Coral Reefs; Eutrophication; Nitrogen
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149213
作者单位	Univ Brest, CNRS, IRD, Ifremer, LEMAR, Plouzane, F-29280, France; UMR ENTROPIE (IRD—Université de La Réunion—CNRS), Laboratoire d'Excellence Labex-CORAIL, Institut de Recherche pour le Développement, BP A5, Nouméa Cedex, 98848, New Caledonia; Department of Climate Geochemistry, Max Planck Institute for Chemistry (Otto Hahn Institute), Hahn-Meitner-Weg 1, Mainz, 55128, Germany; Department of Geology, Union College, Schenectady, NY 12308, United States; CNRS/INSU, Université de Toulon, IRD, Mediterranean Institute of Oceanography (MIO) UMR110, Aix Marseille Université, Marseille, 13288, France
推荐引用方式 GB/T 7714	Thibault M.,Duprey N.,Gillikin D.P.,et al. Bivalve δ15N isoscapes provide a baseline for urban nitrogen footprint at the edge of a World Heritage coral reef[J],2020,152.
APA	Thibault M..,Duprey N..,Gillikin D.P..,Thébault J..,Douillet P..,...&Lorrain A..(2020).Bivalve δ15N isoscapes provide a baseline for urban nitrogen footprint at the edge of a World Heritage coral reef.Marine Pollution Bulletin,152.
MLA	Thibault M.,et al."Bivalve δ15N isoscapes provide a baseline for urban nitrogen footprint at the edge of a World Heritage coral reef".Marine Pollution Bulletin 152(2020).