Small pelagic fish feeding patterns in relation to food resource variability: an isotopic investigation for Sardina pilchardus and Engraulis encrasicolus from the Bay of Biscay (north-east Atlanti

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• 作者：T. Chouvelon ; L. Violamer ; A. Dessier ; P. Bustamante ; F. Mornet…
• 刊名：Marine Biology
• 出版年：2015
• 出版时间：January 2015
• 年：2015
• 卷：162
• 期：1
• 页码：15-37
• 全文大小：851 KB
• 参考文献：1. Albaina A, Irigoien X (2004) Relationships between frontal structures and zooplankton communities along a cross-shelf transect in the Bay of Biscay (1995 to 2003). Mar Ecol Prog Ser 284:65-5 CrossRef
  2. Alheit J, Pohlmann T, Casini M, Greve W, Hinrichs R, Mathis M, O’Driscoll K, Vorberg R, Wagner C (2012) Climate variability drives anchovies and sardines into the North and Baltic Seas. Prog Oceanogr 96:128-39 CrossRef
  3. Bachiller E, Cotano U, Boyra G, Irigoien X (2012) Spatial distribution of the stomach weights of juvenile anchovy ( / Engraulis encrasicolus L.) in the Bay of Biscay. ICES J Mar Sci. doi:10.1093/icesjms/fss176
  4. Barange M, Coetzee J, Takasuka A, Hill K, Gutierrez M, Oozeki Y, Van der Lingen C, Agostini V (2009) Habitat expansion and contraction in anchovy and sardine populations. Prog Oceanogr 83:251-60 CrossRef
  5. Beaugrand G, Brander KM, Lindley JA, Souissi S, Reid PC (2003) Plankton effect on cod recruitment in the North Sea. Nature 426:661-64 CrossRef
  6. Bode A, álvarez-Ossorio MT, Carrera P, Lorenzo J (2004) Reconstruction of trophic pathways between plankton and the North Iberian sardine ( / Sardina pilchardus) using stable isotopes. Sci Mar 68:165-78 CrossRef
  7. Bond AL, Diamond AW (2011) Recent Bayesian stable-isotope mixing models are highly sensitive to variation in discrimination factors. Ecol Appl 21:1017-023 CrossRef
  8. Buchheister A, Latour RJ (2010) Turnover and fractionation of carbon and nitrogen stable isotopes in tissues of a migratory coastal predator, summer flounder ( / Paralichthys dentatus). Can J Fish Aquat Sci 67:445-61 CrossRef
  9. Cabal J, González-Nuevo G, Nogueira E (2008) Mesozooplankton species distribution in the NW and N Iberian shelf during spring 2004: relationship with frontal structures. J Mar Syst 72:282-97 CrossRef
  10. Caut S, Angulo E, Courchamp F (2009) Variation in discrimination factors (Δ¹⁵N and Δ¹³C): the effect of diet isotopic values and applications for diet reconstruction. J Appl Ecol 46:443-53 CrossRef
  11. Chavez FP, Ryan J, Lluch-Cota SE, ?iquen CM (2003) From anchovies to sardines and back: multidecadal change in the Pacific Ocean. Science 299:217-21 CrossRef
  12. Chouvelon T, Spitz J, Caurant F, Mèndez-Fernandez P, Chappuis A, Laugier F, Le Goff E, Bustamante P (2012) Revisiting the use of δ¹⁵N in meso-scale studies of marine food webs by considering spatio-temporal variations in stable isotopic signatures—the case of an open ecosystem: the Bay of Biscay (North-East Atlantic). Prog Oceanogr 101:92-05 CrossRef
  13. Chouvelon T, Chappuis A, Bustamante P, Lefebvre S, Mornet F, Guillou G, Violamer L, Dupuy C (2014) Trophic ecology of European sardine / Sardina pilchardus and European anchovy / Engraulis encrasicolus in the Bay of Biscay (north-east Atlantic) inferred from δ¹³C and δ¹⁵N values of fish and identified mesozooplanktonic organisms. J Sea Res 85:277-91 CrossRef
  14. Costalago D, Navarro J, álvarez-Calleja I, Palomera I (2012) Ontogenetic and seasonal changes in the feeding habits and trophic levels of two small pelagic fish species. Mar Ecol Prog Ser 460:169-81 CrossRef
  15. Cury P, Roy C (1989) Optimal environmental wind
• 作者单位：T. Chouvelon (1) (2)
  L. Violamer (1)
  A. Dessier (1)
  P. Bustamante (1)
  F. Mornet (3)
  C. Pignon-Mussaud (1)
  C. Dupuy (1)
  
  1. Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS - Université de La Rochelle, 2 rue Olympe de Gouges, 17000, La Rochelle 01, France
  2. Unité Biogéochimie et écotoxicologie (BE), Laboratoire de Biogéochimie des Contaminants Métalliques (LBCM), IFREMER, Rue de l’Ile d’Yeu, 44311, Nantes 03, France
  3. Unité Halieutique Gascogne Sud (HGS), IFREMER, Station de La Rochelle, Place Gaby Coll, 17087, L’Houmeau, France
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Ecology
  Biomedicine
  Oceanography
  Microbiology
  Zoology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1793

文摘

Small pelagic fish represent an essential link between lower and upper trophic levels in marine pelagic ecosystems and often support important fisheries. In the Bay of Biscay in the north-east Atlantic, no obvious controlling factors have yet been described that explain observed fluctuations in European sardine Sardina pilchardus and European anchovy Engraulis encrasicolus stocks, in contrast to other systems. The aim of this study was therefore to investigate to which extent these fluctuations could be trophodynamically mediated. The trophic ecology of both fish species was characterised over three contrasting periods (spring 2010 and 2011 and autumn 2011) in the area, in relation to potential variation in the abundance and composition of the mesozooplankton resource. Stable isotope analyses of carbon (δ13C) and nitrogen (δ15N) were performed on potential mesozoplanktonic prey items and in the muscle of adult fish, as well as in the liver whenever available, and mixing models were applied. In both springs, the mesozooplankton resource was abundant but qualitatively different. During this period of the year, results based on muscle isotope values in particular showed that S. pilchardus and E. encrasicolus likely do not compete strongly for food. On the medium term, E. encrasicolus always presented a greater trophic plasticity than S. pilchardus, both in terms of feeding areas and in the size of the mesozooplanktonic prey consumed. In autumn, mesozooplankton abundances were lower, and it was likely that S. pilchardus and E. encrasicolus share food resources during this period. No clear links between the variation in the mesozooplanktonic resource and the trophic segregation maintained between adults of both fish species in spring could be made. Although a certain potential exists for trophodynamically mediated fluctuations of both species under specific abiotic conditions (i.e. due to the existing trophic segregation in spring in particular), the overall results suggest that fluctuations in abundance of both fish species are probably not directly linked to their trophic ecology in the Bay of Biscay, at least at the level of adult individuals.