Article (Scientific journals)
The same but different: stable isotopes reveal two distinguishable, yet similar, neighbouring food chains in a coral reef
Le Bourg, Baptiste; Letourneur, Yves; Bănaru, Daniela et al.
2017In Journal of the Marine Biological Association of the United Kingdom
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Keywords :
barrier reef; particulate organic matter; zooplankton; reef teleosts; stable isotopes; Pacific Ocean
Abstract :
[en] Stable isotope compositions were studied in particulate organic matter (POM), zooplankton and different trophic groups of teleosts to compare food chains based on plankton at two sites (lagoon and outer slope) in a New Caledonian coral reef. For each trophic compartment, d13C values were always lower in the outer slope than in the lagoon. This result may be explained by potential differences in POM composition between the two environments, suggesting that the two food chains are based on different primary sources of carbon. In contrast, d15N values did not vary between the lagoon and the outer slope, indicating that these two food chains presented similar length and trophic levels, despite being distinguishable.
Disciplines :
Aquatic sciences & oceanology
Environmental sciences & ecology
Author, co-author :
Le Bourg, Baptiste ;  Université de Liège > Département de Biologie, Ecologie et Evolution > Océanographie biologique
Letourneur, Yves;  Université de la Nouvelle-Calédonie > Laboratoire LIVE
Bănaru, Daniela;  Aix Marseille Université > Mediterranean Institute of Oceanography (MIO), UM 110
Blanchot, Jean;  Aix Marseille Université > Mediterranean Institute of Oceanography (MIO), UM 110
Chevalier, Cristèle;  Aix Marseille Université > Mediterranean Institute of Oceanography (MIO), UM 110
Mou-Tham, Gérard;  Institut de Recherche pour le Développement (IRD) > Centre de Nouméa
Lebreton, Benoit;  Université de La Rochelle > UMR CNRS 7266 LIENSs
Pagano, Marc;  Aix Marseille Université > Mediterranean Institute of Oceanography (MIO), UM 110
Language :
English
Title :
The same but different: stable isotopes reveal two distinguishable, yet similar, neighbouring food chains in a coral reef
Publication date :
2017
Journal title :
Journal of the Marine Biological Association of the United Kingdom
ISSN :
0025-3154
eISSN :
1469-7769
Publisher :
Cambridge University Press, New York, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 August 2017

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