Meiofauna versus macrofauna as a food resource in a tropical intertidal mudflat
| العنوان: | Meiofauna versus macrofauna as a food resource in a tropical intertidal mudflat |
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| المؤلفون: | Johan Chevalier, Christine Dupuy, Pierrick Bocher, Hien T. Nguyen, Pierre-Yves Pascal, Christel Lefrançois |
| المساهمون: | Institut de Systématique, Evolution, Biodiversité (ISYEB ), Muséum national d'Histoire naturelle (MNHN)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), LIttoral ENvironnement et Sociétés - UMRi 7266 (LIENSs), Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS), University of sciences and technologies of hanoi (USTH) |
| المصدر: | Marine Biology Marine Biology, Springer Verlag, 2019, 166 (11), pp.144. ⟨10.1007/s00227-019-3588-z⟩ |
| بيانات النشر: | Springer Science and Business Media LLC, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0106 biological sciences, Meiobenthos, goby, Aquatic Science, 010603 evolutionary biology, 01 natural sciences, foodweb, Predation, Optimal foraging theory, [SDV.EE.ECO]Life Sciences [q-bio]/Ecology, environment/Ecosystems, crab, 14. Life underwater, Ecology, Evolution, Behavior and Systematics, Trophic level, Ecology, biology, 010604 marine biology & hydrobiology, Goby, biology.organism_classification, Benthic zone, shrimp, diet, Portunidae, Callinectes bocourti, mudflat, Tanaidacea, [SDV.EE.IEO]Life Sciences [q-bio]/Ecology, environment/Symbiosis |
| الوصف: | International audience; Evaluations of the functioning of benthic marine food webs could be improved by quantifying organic matter fluxes from the meiofauna to higher trophic levels. In this study, we measured the simultaneous ingestion of meiofauna and macrofauna by common dwellers of a tropical intertidal mudflat on the coast of Amazonia. The meiofauna and macrofauna (tanaid) communities of a tropical intertidal mudflat of French Guiana were separately enriched with 15N and 13C, respectively. The enriched preys were then used as tracers during feeding experiments with common predators of different sizes and feeding mechanisms: a Portunidae crab (Callinectes bocourti), a Penaeidae shrimp (Farfantepenaeus subtilis), and a Gobiidae fish (Gobionellus oceanicus). In feeding experiments with all predators except crabs, feeding rates increased with the availability of meiofauna and macrofauna food sources. The ability of consumers to ingest their food selectively was evaluated by calculating the differences in the ratio of macrofauna to meiofauna between the (1) ingested material and (2) that available in the environment. Larger predators showed a higher degree of preferential macrofauna ingestion than smaller predators, consistent with the optimal foraging theory. For large predators, the meiofauna would be important only during early life or in the absence of large food items. |
| تدمد: | 1432-1793 0025-3162 |
| DOI: | 10.1007/s00227-019-3588-z |
| DOI: | 10.1007/s00227-019-3588-z⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5629510255ca54746c1aafd9783dbb5e https://doi.org/10.1007/s00227-019-3588-z |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....5629510255ca54746c1aafd9783dbb5e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14321793 00253162 |
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| DOI: | 10.1007/s00227-019-3588-z |