D. Ainley and R. Boekelheide, An ecological comparison of oceanic seabird communities of the south Pacific ocean, Stud Avian Biol, vol.8, pp.2-23, 1983.

N. Ashmole, THE BIOLOGY OF THE WIDEAWAKE OR SOOTY TERN STERNA FUSCATA ON ASCENSION ISLAND, Ibis, vol.45, issue.3, pp.297-364, 1963.
DOI : 10.1111/j.1474-919X.1963.tb06757.x

N. Ashmole, Seabird ecology and the marine environment, Avian Biology, vol.1, pp.223-286, 1971.

D. Au and R. Pitman, Seabird interactions with dolphins and tuna in the eastern tropical Pacific, Condor, vol.88, pp.304-317, 1986.

C. Barbraud and H. Weimerskirch, Climate and density shape population dynamics of a marine top predator, Proceedings of the Royal Society B: Biological Sciences, vol.270, issue.1529, pp.2111-2116, 2003.
DOI : 10.1098/rspb.2003.2488

URL : https://hal.archives-ouvertes.fr/hal-00189211

A. Bertrand, F. Bard, and E. Josse, Tuna food habits related to the micronekton distribution in French Polynesia, Mar Biol (Berl), vol.140, pp.1023-1037, 2002.

M. Brooke, The food consumption of the world's seabirds, Proceedings of the Royal Society B: Biological Sciences, vol.271, issue.Suppl_4, pp.246-248, 2004.
DOI : 10.1098/rsbl.2003.0153

Y. Cherel, K. Hobson, and S. Hassani, Isotopic Discrimination between Food and Blood and Feathers of Captive Penguins: Implications for Dietary Studies in the Wild, Physiological and Biochemical Zoology, vol.78, issue.1, pp.106-115, 2005.
DOI : 10.1086/425202

URL : https://hal.archives-ouvertes.fr/hal-00187664

Y. Cherel, K. Hobson, and H. Weimerskirch, Using stable-isotope analysis of feathers to distinguish moulting and breeding origins of seabirds, Oecologia, vol.122, issue.2, pp.155-162, 2000.
DOI : 10.1007/PL00008843

URL : https://hal.archives-ouvertes.fr/hal-00193359

Y. Cherel, P. Bocher, C. Trouvé, and H. Weimerskirch, Diet and feeding ecology of blue petrels Halobaena caerulea at Iles Kerguelen, Southern Indian Ocean, Marine Ecology Progress Series, vol.228, pp.283-299, 2002.
DOI : 10.3354/meps228283

URL : https://hal.archives-ouvertes.fr/hal-00191974

Y. Cherel, R. Phillips, K. Hobson, and R. Mcgill, Stable isotope evidence of diverse species-specific and individual wintering strategies in seabirds, Biology Letters, vol.74, issue.1400, pp.301-303, 2006.
DOI : 10.1098/rspb.1998.0390

URL : https://hal.archives-ouvertes.fr/hal-00184875

M. Clarke, O. Clarendon, J. Croxall, K. Reid, and P. Prince, A handbook for identification of cephalopod beaks Diet, provisioning and productivity responses of marine predators to differences in availability of Antarctic krill, Mar Ecol Prog Ser, vol.177, pp.115-131, 1986.

J. R. Donguy and G. Meyers, Seasonal variations of sea-surface salinity and temperature in the tropical Indian Ocean, Deep Sea Research Part I: Oceanographic Research Papers, vol.43, issue.2, pp.117-138, 1996.
DOI : 10.1016/0967-0637(96)00009-X

C. Erwin and B. Congdon, Day-to-day variation in sea-surface temperature reduces sooty tern Sterna fuscata foraging success on the Great Barrier Reef, Australia, Marine Ecology Progress Series, vol.331, pp.255-266, 2007.
DOI : 10.3354/meps331255

C. Feare, The breeding of the Sooty tern Sterna fuscata in the Seychelles and the effects of experimental removal of its eggs, Journal of Zoology, vol.5, issue.3, pp.317-360, 1976.
DOI : 10.1111/j.1469-7998.1976.tb02299.x

C. Feare, S. Jaquemet, L. Corre, and M. , ) in the western Indian Ocean with special reference to threats and trends, Ostrich, vol.78, issue.2, pp.423-434, 2007.
DOI : 10.2989/OSTRICH.2007.78.2.49.129

M. Forero, K. Hobson, G. Bortolotti, J. Donazar, M. Bertellotti et al., Food resource utilisation by the Magellanic penguin evaluated through stable-isotope analysis: segregation by sex and age and influence on offspring quality, Marine Ecology Progress Series, vol.234, pp.289-299, 2002.
DOI : 10.3354/meps234289

C. Harisson, T. Hida, and M. Seki, Hawaiian seabird feeding ecology, Wild Monogr, vol.85, pp.1-71, 1983.

V. Hensley and D. Hensley, Fishes eaten by sooty terns and brown noddies in the Dry Tortugas, Florida, Bull Mar Sci, vol.56, pp.813-821, 1995.

K. Hobson, Trophic relationships among high Arctic seabirds: insights from tissue-dependent stable-isotope models, Marine Ecology Progress Series, vol.95, pp.7-18, 1993.
DOI : 10.3354/meps095007

K. Hobson, H. Gibbs, and M. Gloutney, Preservation of blood and tissue samples for stable-carbon and stable-nitrogen isotope analysis, Canadian Journal of Zoology, vol.75, issue.10, pp.1720-1723, 1997.
DOI : 10.1139/z97-799

P. Hodum and K. Hobson, Trophic relationships among Antarctic fulmarine petrels:insights into dietary overlap and chick provisioning strategies inferred from stable-isotope (d15N and d13C) analyses, Marine Ecology Progress Series, vol.198, pp.273-281, 2000.
DOI : 10.3354/meps198273

S. Jaquemet, L. Corre, M. Marsac, F. Potier, M. Weimerskirch et al., Foraging habitats of the seabird community of Europa Island (Mozambique Channel), Marine Biology, vol.8, issue.3, pp.573-582, 2005.
DOI : 10.1007/s00227-005-1610-0

URL : https://hal.archives-ouvertes.fr/hal-00188099

S. Jaquemet, L. Corre, M. Quartly, and G. , Ocean control of the breeding regime of the sooty tern in the southwest Indian Ocean, Deep Sea Research Part I: Oceanographic Research Papers, vol.54, issue.1, pp.130-142, 2007.
DOI : 10.1016/j.dsr.2006.10.003

URL : https://hal.archives-ouvertes.fr/hal-01367532

J. Kojadinovic, M. Potier, L. Corre, M. Cosson, R. Bustamante et al., Bioaccumulation of trace elements in pelagic fish from the Western Indian Ocean, Environmental Pollution, vol.146, issue.2, pp.548-566, 2007.
DOI : 10.1016/j.envpol.2006.07.015

URL : https://hal.archives-ouvertes.fr/hal-00321778

L. Corre and M. , Breeding seasons of seabirds at Europa Island (southern Mozambique Channel) in relation to seasonal changes in the marine environment, Journal of Zoology, vol.8, issue.1, pp.239-249, 2001.
DOI : 10.1175/1520-0442(1994)007<0929:IGSSTA>2.0.CO;2

L. Corre, M. Cherel, Y. Lagarde, F. Lormée, H. Jouventin et al., Seasonal and inter-annual variation in the feeding ecology of a tropical oceanic seabird, the red-tailed tropicbird Phaethon rubricauda, Marine Ecology Progress Series, vol.255, pp.289-301, 2003.
DOI : 10.3354/meps255289

URL : https://hal.archives-ouvertes.fr/hal-00189761

L. Corre, M. Jaquemet, and S. , Assessment of the seabird community of the Mozambique Channel and its potential use as an indicator of tuna abundance, Estuarine, Coastal and Shelf Science, vol.63, issue.3, pp.421-428, 2005.
DOI : 10.1016/j.ecss.2004.11.013

URL : https://hal.archives-ouvertes.fr/hal-01367528

A. Longhurst and P. D. , Ecology of tropical ocean Ecological diversity and its measurement, 1987.

F. Ménard, A. Lorrain, M. Potier, and F. Marsac, Isotopic evidence of distinct feeding ecologies and movement patterns in two migratory predators (yellowfin tuna and swordfish) of the western Indian Ocean, Marine Biology, vol.79, issue.2, pp.141-152, 2007.
DOI : 10.1007/s00227-007-0789-7

L. Monteiro and R. Furness, Seabirds as monitors of mercury in the marine environment, Water, Air, & Soil Pollution, vol.4, issue.1-4, pp.851-870, 1995.
DOI : 10.1007/BF01189736

D. Monticelli, J. Ramos, and G. Quartly, Effects of annual changes in primary productivity and ocean indices on breeding performance of tropical roseate terns in the western Indian Ocean, Marine Ecology Progress Series, vol.351, pp.273-286, 2007.
DOI : 10.3354/meps07119

L. Pinkas, M. Oliphant, and I. Iverson, Food habits of albacore, bluefin tuna, and bonito in California waters, Fish Bull, vol.152, pp.1-105, 1971.

P. Quillfeldt, R. Mcgill, and R. Furness, Diet and foraging areas of Southern Ocean seabirds and their prey inferred from stable isotopes: review and case study of Wilson??s storm-petrel, Marine Ecology Progress Series, vol.295, pp.295-304, 2005.
DOI : 10.3354/meps295295

G. Rau, R. Sweeney, and I. Kaplan, Plankton 13C: 12C ratio changes with latitude: differences between northern and southern oceans, Deep Sea Research Part A. Oceanographic Research Papers, vol.29, issue.8, pp.1035-1039, 1982.
DOI : 10.1016/0198-0149(82)90026-7

W. Robertson, Transatlantic Migration of Juvenile Sooty Terns, Nature, vol.97, issue.5194, pp.632-634, 1969.
DOI : 10.1038/222632a0

G. Rocamora and A. Skerrett, Seychelles In: Important Bird Area in Africa and associated islands Pices Publication and Birdlife International, Newburry and Cambridge, pp.751-768, 2001.

C. Sanpera, R. Moreno, X. Ruiz, and L. Jover, Audouin???s gull chicks as bioindicators of mercury pollution at different breeding locations in the western Mediterranean, Marine Pollution Bulletin, vol.54, issue.6, pp.691-696, 2007.
DOI : 10.1016/j.marpolbul.2007.01.016

F. Schaffner, Food Provisioning by White-Tailed Tropicbirds: Effects on the Developmental Pattern of Chicks, Ecology, vol.71, issue.1, pp.375-390, 1990.
DOI : 10.2307/1940275

M. Schoeninger and M. Deniro, Nitrogen and carbon isotopic composition of bone collagen from marine and terrestrial animals, Geochimica et Cosmochimica Acta, vol.48, issue.4, pp.625-639, 1984.
DOI : 10.1016/0016-7037(84)90091-7

E. Schreiber and J. Burger, Seabirds in the Marine Environment, Biology of Marine Birds, 2001.
DOI : 10.1201/9781420036305.ch1

E. Schreiber, C. Feare, B. Harrington, B. Murray, W. Robertson et al., Sooty Tern (Sterna fuscata), The Birds of North America Online, vol.665, 2002.
DOI : 10.2173/bna.665

M. Smale, G. Watson, and T. Hecht, Otolith atals of Southern African marine fishes, JLB Smith Inst. Ichth., Ichthyological Monograph, vol.1, issue.149, p.502, 1995.

M. Smith and P. Heemstra, Smith's Sea fishes, 1986.

C. Surman and R. Wooller, Comparative foraging ecology of five sympatric terns at a sub-tropical island in the eastern Indian Ocean, Journal of Zoology, vol.58, issue.3, pp.219-230, 2003.
DOI : 10.1017/S0952836902003047

J. Swallow, M. Fieux, and F. Schott, The boundary currents east and north of Madagascar: 1. Geostrophic currents and transports, Journal of Geophysical Research, vol.9, issue.C5, pp.4951-4962, 1988.
DOI : 10.1029/JC093iC05p04951

Y. Tremblay and Y. Cherel, Geographic variation in the foraging behaviour, diet and chick growth of rockhopper penguins, Marine Ecology Progress Series, vol.251, pp.279-297, 2003.
DOI : 10.3354/meps251279

URL : https://hal.archives-ouvertes.fr/hal-00189789

P. Walsh, The use of seabirds as monitors of heavy metals in the marine environment In: Heavy metals in the marine environment, Furness RW, Rainbow PS, pp.183-203, 1990.

H. Weimerskirch, L. Corre, M. Jaquemet, S. Marsac, and F. , Foraging strategy of a tropical seabird, the red-footed booby, in a dynamic marine environment, Marine Ecology Progress Series, vol.288, pp.251-261, 2005.
DOI : 10.3354/meps288251

J. Zar, Biostatistical analysis 4 th Edition, 1999.