Bases morfo-funcionais da alimentação e o papel trófico de iLychnorhiza lucerna (Scyphozoa, Rhizostomeae)

Nagata, Renato Mitsuo

doi:10.11606/t.41.2015.tde-27052015-081607

Cited by 2 publications

(3 citation statements)

References 88 publications

(176 reference statements)

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“…<3 cm*s -1 and C. quinquecirrha ~5 cm*s -1 for individuals <8 cm of bell diameter, D'Ambra et al 2001 andSanthanakrishnan et al 2012, respectively), these feeding current velocities may still be insufficient to exceed escape velocities of co-occurring copepods. The few field data on rhizostome feeding habits provide equivocal evidence that calanoids may both avoid predation (Larson 1991, Álvarez-Tello et al 2015, or be captured in similar proportions to environmental densities (Fancett 1988, Nagata 2015).…”

Section: Figure 10mentioning

confidence: 99%

“…The goals of this study were: i-to describe sequential morphogenesis of ephyral lips into adults oral arms; ii-to analyze parameters of swimming, bell kinematics, and animal-fluid interaction throughout development; iii-analyze the fluid motions around swimming medusae and the interaction of wake vortex rings with feeding structures; and iv-to describe predator-prey interaction of L. lucerna and calanoid copepods. We focused only on interactions between L. lucerna and calanoid copepods since these are the main food items for this species (Nagata 2015). We hypothesized that: i-the development from ephyral to the adult body plans entails a transition in fluid regimes (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Transitions in morphologies, fluid regimes, and feeding mechanisms during development of the medusa Lychnorhiza lucerna

Nagata¹,

Morandini²,

Colin³

et al. 2016

Mar. Ecol. Prog. Ser.

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17The early ontogeny of scyphomedusae involves morphological and functional 18 transitions in body plans that affect the predators' propulsive and feeding strategies. We lucerna's feeding current speeds, copepods often fail to detect the predator's feeding 34 currents or inadvertently jump into medusan capture surfaces during failed escape 35 attempts. Consequently, the comparatively weak predator feeding currents successfully 36 capture a portion of the copepods encountered by swimming medusae. These results 37clarify the processes that enable rhizostome medusae to play key roles as consumers in 38 tropical and subtropical coastal environments.

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Section: Figure 10mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Transitions in morphologies, fluid regimes, and feeding mechanisms during development of the medusa Lychnorhiza lucerna

Nagata¹,

Morandini²,

Colin³

et al. 2016

Mar. Ecol. Prog. Ser.

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show abstract

“…However, laboratory observations indicate that this species can consume ephyrae of other species (Carrizo et al, 2016). The only study describing feeding mechanisms and diet of L. lucerna included specimens collected from southeastern Brazil (Nagata, 2015;Nagata et al, 2016). The common accumulations of this species in the Río de la Plata Estuary attract sea turtles Dermochelys coriacea and Chelonia mydas that prey on them (Estrades et al, 2007;González-Carman et al, 2014).…”

Section: Lychnorhiza Lucernamentioning

confidence: 99%

Medusae (Scyphozoa and Cubozoa) from southwestern Atlantic and Subantarctic region (32 60S, 34 70W): species composition, spatial distribution and life history traits

Schiariti

Dutto²,

Pereyra³

et al. 2018

lajar

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In this study, we reported the species composition and spatial distribution of Scyphomedusae and Cubomedusae from the southwestern Atlantic and Subantarctic region and reviewed the available knowledge of life history traits of these species. We gathered the literature records and presented new information collected from oceanographic and fishery surveys carried out between 1981 and 2017, encompassing an area of approximately 6,7 million km 2 (32-60°S, 34-70°W). We confirmed the occurrence of 15 scyphozoans and 1 cubozoan species previously reported in the region. Lychnorhiza lucerna and Chrysaora lactea were the most numerous species, reaching the highest abundances/biomasses during summer/autumn period. Desmonema gaudichaudi, Chrysaora plocamia, and Periphylla periphylla were frequently observed in low abundances, reaching high numbers only occasionally. Phacellophora camtschatica, Aurelia sp., Drymonema gorgo, Atolla chuni, Stygiomedusa gigantea and Pelagia cf. noctiluca were observed always in low numbers. Atolla wyvillei, Stomolophus meleagris, Desmonema comatum and Tamoya haplonema were reported just a few times and mostly individually. Although new species/reports can be found as surveys are undertaken, these results are considered to be the reliable baseline for further ecological studies seeking to understand the ecological role that these jellyfish play in marine ecosystems.

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Bases morfo-funcionais da alimentação e o papel trófico de iLychnorhiza lucerna (Scyphozoa, Rhizostomeae)

Cited by 2 publications

References 88 publications

Transitions in morphologies, fluid regimes, and feeding mechanisms during development of the medusa Lychnorhiza lucerna

Transitions in morphologies, fluid regimes, and feeding mechanisms during development of the medusa Lychnorhiza lucerna

Medusae (Scyphozoa and Cubozoa) from southwestern Atlantic and Subantarctic region (32 60S, 34 70W): species composition, spatial distribution and life history traits

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