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Morphofunctional bases of feeding and the trophic role of Lychnorhiza lucerna (Scyphozoa, Rhizostomeae)

Grant number: 11/00436-8
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): May 01, 2011
Effective date (End): December 31, 2014
Field of knowledge:Biological Sciences - Zoology - Morphology of Recent Groups
Principal researcher:André Carrara Morandini
Grantee:Renato Mitsuo Nagata
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):13/19478-8 - Implications of animalfluid interactions for the feeding behavior of Lychnorhiza lucerna, BE.EP.DR


Over the last two decades, considerable attention has turned to scyphomedusae ecology due to the apparent increase in certain populations. Their feeding rates are high and they can deplete planktonic populations causing drastic consequences for the economy and the ecosystem. Data about feeding habits of medusae of Rhizostomeae, which dominate in tropical and subtropical coastal environments, are scarce. In Brazil, Lychnorhiza Lucerna Haeckel, 1880 is the most abundant Rhizostomeae and also reaches high densities during their population peaks, but nothing is known about feeding habits. This project aims to: (i) to describe the morphology and functionality of structures prey capture of L. Lucerna, (ii) to describe the species diet, prey selectivity and individual feed rates and (iii) to determine the species trophic level and the main nutritional sources by means of stable isotope analysis. Thus, the ecological role of these species will be better understood and essential information, to predict the consequences of the species blooms will be generated.

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Scientific publications (6)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
NAGATA, RENATO M.; MORANDINI, ANDRE C.; COLIN, SEAN P.; MIGOTTO, ALVARO E.; COSTELLO, JOHN H.. Transitions in morphologies, fluid regimes, and feeding mechanisms during development of the medusa Lychnorhiza lucerna. Marine Ecology Progress Series, v. 557, p. 145-159, . (14/00824-6, 11/00436-8, 16/05637-5, 11/50242-5, 13/19478-8, 15/01307-8, 10/50174-7)
NAGATA, RENATO MITSUO; NOGUEIRA JUNIOR, MIODELI; HADDAD, MARIA ANGELICA. Faunistic survey of Hydromedusae (Cnidaria, Medusozoa) from the coast of Parana State, Southern Brazil. Zootaxa, v. 3768, n. 3, p. 291-326, . (11/09880-8, 11/00436-8)
NAGATA, RENATO MITSUO; NOGUEIRA JUNIOR, MIODELI; BRANDINI, FREDERICO PEREIRA; HADDAD, MARIA ANGELICA. Spatial and temporal variation of planktonic cnidarian density in subtropical waters of the Southern Brazilian Bight. Journal of the Marine Biological Association of the United Kingdom, v. 94, n. 7, p. 1387-1400, . (11/09880-8, 11/00436-8)
CABRAL, ANA CAROLINE; NOGUEIRA JUNIOR, MIODELI; NAGATA, RENATO MITSUO; BRANDINI, FREDERICO PEREIRA. Are free-floating planktonic hydroids (Cnidaria, Hydrozoa) common components of the pelagic fauna from the South Brazilian Bight?. Journal of the Marine Biological Association of the United Kingdom, v. 95, n. 8, p. 1645-1652, . (11/21290-1, 11/09880-8, 11/00436-8)
NAGATA, RENATO MITSUO; MOREIRA, MARCELO ZACHARIAS; PIMENTEL, CAIO RIBEIRO; MORANDINI, ANDRE CARRARA. Food web characterization based on delta N-15 and delta C-13 reveals isotopic niche partitioning between fish and jellyfish in a relatively pristine ecosystem. Marine Ecology Progress Series, v. 519, p. 13-27, . (11/00436-8, 10/50174-7)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
NAGATA, Renato Mitsuo. Morphofunctional bases of feeding and the trophic role of Lychnorhiza lucerna. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) São Paulo.

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